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Building Technologies

Basic Documentation LMV5...

CC1P7550en

4 Burner control

22.05.2018

4.2.3.6 Prepurging

The prepurge position is approached in phase

Traveling to prepurging

(24).

The prepurge time is determined via the following parameters:

Parameter PrepurgeTmeGas

PrepurgeTmeOil

These 2 parameters determine the minimum prepurge time, provided the following
parameters do not become effective.
This means that the prepurge time is allocated to phases 30 through 34:
In phase 30, the time defined in

PrepurgePt1...

is observed, followed by phase 32 or

valve proving. Then, the time of

PrepurgeTmeGas

possibly remaining, or

PrepurgeTmeOil

in phase 34, is observed, but always

PrepurgePt3...

as a minimum.

These parameters determine the prepurge time after the following events:
• Alterable lockout position
• Off time >24 hours (standby)
• Power failure (Power-on)
• Shutdown due to interruption of gas supply (safety shutdown)

Parameter PrepurgeSafeGas

PrepurgeSafeOil

If these times are used, they are equally assigned to phases 30 and 34.

These are minimum times that are always observed in phases 30 (prepurge time 1) and
34 (prepurge time 3)!
These parameters determine the minimum times for prepurging part 1 and part 3.

Parameter PrepurgePt1Gas

PrepurgePt1Oil
PrepurgePt3Gas
PrepurgePt3Oil

Example:
If the sum of prepurge time part 1 and part 3 exceeds

PrepurgeTmeXX

or

PrepurgeSafeXX

, this longer prepurge time applies!

When using valve proving and 2 class «A» fuel valves, prepurging will not be required
(as per EN 676).
Skipping prepurging can be activated through parameterization.

In spite of an activated parameter, prepurging is performed under the following
conditions:
• Alterable lockout position
• Off time >24 h (standby)
• Power failure (Power-on)
• Shutdown due to interruption of gas supply (safety shutdown)
• Direct start

Parameter SkipPrepurgeGas (deactivated / activated)

SkipPrepurgeOil (deactivated / activated)

Caution!
Deactivating valve proving does not automatically deactivate skipping
prepurging. Hence, the person making the settings must ensure that

SkipPrepurgeGas

is activated only if permitted for the relevant type of plant.

Prepurge time after
safety shutdown

Prepurge times 1 and
3

Start without prepurging

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Summary of Contents for LMV50 series

Page 1: ...ng Technologies LMV50 LMV51 LMV52 Burner management system for forced draft burners with the main functions Burner control Fuel air ration control Boiler controller load controller LMV50 with specific functions for industrial applications LMV52 with additional O2 trim control Basic Documentation The LMV5 and this Basic Documentation are intended for OEMs which integrate the burner controls in thei...

Page 2: ...g kit to the SQM45 295A9 actuator A7550 4 LMV52 User Manual COx supervision and control A7550 5 LMV5 Setting Lists parameter and error list I7550 ACS450 Installation Guide J7550 LMV5 Installation Guide J7550 1 LMV5 Data Sheet N7550 LMV5 Product Range Overview This document contains a complete overview Q7550 AZL52 LMV51 User Manual U7550 AZL52 LMV51 User Manual U7550 1 AZL52 LMV52 User Manual U7550...

Page 3: ... 2 1 Configuration extraneous light 39 4 1 3 External flame supervision LMV50 LMV52 40 4 1 4 High temperature supervision only LMV50 41 4 1 5 Digital inputs 42 4 1 5 1 Safety loop burner flange X3 04 pin 1 X3 03 pin 1 42 4 1 5 2 Manual lockout reset 43 4 1 5 3 Fuel selector X4 01 pin 1 X4 01 pin 2 44 4 1 5 4 Fan contactor contact flue gas recirculation pressure switch X4 01 pin 3 44 4 1 5 5 Extern...

Page 4: ... of extraneous light in standby 69 4 2 3 14 Startup sequence stop in phase 36 70 4 2 3 15 Cooling function in standby mode only LMV50 70 4 2 3 16 Long postpurge time only LMV50 LMV52 4 70 4 2 4 Selection of fuel 71 4 2 5 Auxiliary functions 72 4 2 5 1 Hours run counter 72 4 2 5 2 Start counter startup counter 72 4 2 5 3 End of life cycle function 72 4 2 5 4 Fuel meter 72 5 Sequence diagrams 73 6 F...

Page 5: ...nd operating unit AZL5 130 8 1 Assignment of AZL5 terminals 131 8 2 Ports of the AZL5 133 8 2 1 Port for the PC 134 8 2 2 Interface to BACS 135 8 2 2 1 General information and BACS functions 135 8 2 2 2 Modbus 135 8 2 3 Interface for the output of trending data 138 8 3 Displays and settings 139 8 3 1 Menu structure 139 8 3 2 Display of normal operation 140 8 3 3 Lockout and error messages 143 8 3 ...

Page 6: ...GG5 6 219 13 1 3 When is a second AGG5 2 power transformer required 223 13 2 Suppliers of other accessory items 224 13 2 1 Mounting clip for mounting rail 224 13 2 2 eBus PC adapter 224 13 2 3 RS232 USB adapter connection AZL52 to PC for using the ACS450 PC software 224 13 2 4 Mechanical coupling 224 14 Duties of the authorized inspector 225 15 Technical data 229 15 1 LMV5 and AZL5 229 15 2 Loads ...

Page 7: ...ntrol via a contact 266 19 4 14 Displaying the O2 trim controller status 267 19 5 O2 alarm 268 19 5 1 Delayed O2 limit value 268 19 5 2 Switch off criteria of the O2 alarm 269 19 5 2 1 O2 minimum value alarm 269 19 5 2 2 O2 maximum value alarm 270 19 5 3 Inactivation deactivation of the O2 alarm 270 19 6 Self test 271 19 6 1 O2 Sensor test 271 19 6 2 Checking the O2 content 20 9 272 19 7 Auxiliary...

Page 8: ...from V02 50 to V05 10 308 22 2 1 11 Basic unit LMV51 3 Software from V04 80 to V05 10 309 22 2 1 12 Basic unit LMV50 relaunch with V10 20 software 309 22 2 1 13 Basic unit LMV52 2 Software from V04 80 to V05 10 310 22 2 1 14 Basic unit LMV52 4 Software from V10 00 to V10 20 311 22 2 1 15 Basic unit LMV5 software from V05 10 to V05 20 10 20 to V10 30 311 22 2 2 Changes to the load controller 312 22...

Page 9: ...9 327 Building Technologies Basic Documentation LMV5 CC1P7550en 22 05 2018 24 List of figures 324 ...

Page 10: ...ant from mains supply all polar disconnection Ensure that the plant cannot be inadvertently switched on again and that it is indeed dead If not observed there is a risk of electric shock Protection against electrical shock on the LMV5 and on all connected electrical components must be ensured through adequate mounting Each time work has been carried out mounting installation and service work etc c...

Page 11: ... LMV5 the following points must also be observed Condensation and ingress of humidity must be avoided Should such conditions occur make sure that the unit will be completely dry before switching on again Static charges must be avoided since they can damage the unit s electronic components when touched Recommendation Use ESD equipment ...

Page 12: ...tions apply the requirements of VDE must be satisfied especially the standards DIN VDE 0100 0550 and DIN VDE 0722 M5 fixing screws in the LMV5 housing with a maximum tightening torque of 2 Nm The thread of the mounting plate should be checked with regard to the maximum tightening torque in the application or defined accordingly 200 182 232 250 Mounting plate Size 2 mm Figure 1 Mounting the LMV5 No...

Page 13: ...13 327 Building Technologies Basic Documentation LMV5 CC1P7550en 1 Safety notes 22 05 2018 39 132 96 Mounting plate Size 1 5 4 mm 7550m02e 1208 Figure 2 Mounting the AZL5 Notes on mounting the AZL5 ...

Page 14: ...regarding shielding grounding and routing in accordance with EN 13611 Test torque of the screws RAST5 connectors 0 5 Nm Test torque of the screws RAST3 5 connectors 0 25 Nm This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when t...

Page 15: ...with the flame detector exposed to extraneous light e g to incandescent light with detectors for infrared or visible radiation with QRI interrupted at about 20 Hz quartz halogen bulb or cigarette lighter flame with detectors for UV radiation QRA7 Lockout at the end of the prepurge time Β Note Only when supervision of extraneous light is activated c Simulate loss of flame during operation For that ...

Page 16: ...ype of unit This means that among other things each time a plant is commissioned the parameter settings must be checked and the LMV5 must not be transferred from one plant to another without adapting the parameter settings to the new plant In the case of dual fuel burners and oil firing the short preignition phase 38 parameter IgnOilPumpStart is to be selected and a magnetic clutch is to be used e...

Page 17: ...s DIN EN 12067 2 Safety and control devices for gas burners and gas burning appliances General requirements DIN EN 13611 Temperature control devices and temperature limiters for heat generating systems DIN EN 14597 Safety and control devices for gas and or oil burners and gas and or oil appliances Particular requirements Part 1 Fuel air ratio controls electronic type ISO 23552 1 Automatic electric...

Page 18: ...40B1 LMV52 240B2 LMV52 400B2 LMV52 440B1 LMV5 system components AZL52 SQM45 SQM48 SQM9 QRI2 QRA7 PLL52 QGO20 Β Note When using the LMV5 in Australia we strongly recommend that you use a BASE PAR GAS par file to adapt the parameter set to the specific requirements of the Australian market Please direct any queries to Siemens Australia Β Note With regard to the use of the LMV5 in safety related syst...

Page 19: ...lished by the European Control Manufacturers Association afecor www afecor org The designed lifetime is based on use of the burner control according to the manufacturer s Data Sheet and Basic Documentation After reaching the designed lifetime in terms of the number of burner startup cycles or the respective time of usage the burner control is to be replaced by authorized personnel The designed lif...

Page 20: ...oller Optional VSD module The system components AZL5 actuators PLL52 etc are interconnected via a bus system Communication between the bus users takes place via a safety related system bound data bus for safety reasons integration of the bus into external CAN bus systems is not possible All safety related digital outputs of the system are permanently monitored via a contact feedback network For fl...

Page 21: ...posed systems such as a building automation and control system BACS or for a PC using the ACS450 PC software Among other features the unit affords convenient readout of settings and operating states parameterization of the LMV5 and trend recording When replacing the LMV5 all parameters can be saved in a backup memory of the AZL5 to be loaded back into the LMV5 This means that reprogramming is not ...

Page 22: ...n motor contactor Ignition X4 02 3 Start signal or PS relief APS test valve X4 03 3 Oil pump magnetic clutch X6 02 3 Fuel valve SV OIL X6 03 3 Fuel valve V2 OIL X7 01 3 Fuel valve V3 OIL X7 02 3 Fuel valve V1 OIL X8 02 1 Auxiliary terminal for valves connected in series X8 02 2 Fuel valve V1 OIL X8 03 1 Auxiliary terminal for valves connected in series X8 03 2 Signal lamp oil X8 01 2 Signal lamp g...

Page 23: ... max Gas pressure switch valve proving valve proving or valve closure contact CPI Flame alternative 1 QRI IR detector signal voltage QRI IR detector supply voltage Protective earth PE Neutral conductor N Fan Ionization Flame alternative 2 Flame alternative 3 QRA7 signal voltage QRA7 supply voltage Protective earth PE Neutral conductor N Power signal L Fuel valve V2 GAS Neutral conductor N Power si...

Page 24: ... Pt Ni 1000 BUS CANH CANL BUS 12VAC1 12VAC2 12VAC1 12VAC2 12VAC1 12VAC2 12VAC1 12VAC2 FE FE FE FE Brown CANH CANL Brown SEK II 12VAC FE T1 AGG5 2 12V 0 0 12V DEFL 1 2 4 3 2 1 CDO 02 D DFO 02 I LINE 12V 1 2A 1 2 SEK II SEK III SEK I PRI Figure 6 Block diagram inputs outputs Block diagram cont d ...

Page 25: ... max ACT V2 Program Gp2 Gas Pilot 7550s17E 0202 PS min PV V1 PS VP Figure 9 Fuel train application gas pilot ignition 2 Gas always modulating PILOT ignition 1 Gp2 V1 V2 7550f01a 0511 Figure 10 Fuel train application fuel valve control Legend to fuel trains Not used 1 Preheating device V Fuel valve DK Gas valve proving DW Pressure switch HE Heating element HO Heavy oil LO Light oil SA Actuator NO N...

Page 26: ...rain application light oil direct ignition 1 stage V1 V2 7550s04E 0800 PS min LO Program 2 stage burner Figure 12 Fuel train application light oil direct ignition 2 stage V1 V2 7550s05E 0800 PS min V3 LO Program 3 stage burner Figure 13 Fuel train application light oil direct ignition 3 stage Fuel train applications cont d Direct ignition with light oil multistage ...

Page 27: ...for adjustable head V1 M 7550s07e 0308 DW min DW max LO Program Modulating burner with shutdown facility for adjustable head Figure 15 Fuel train application light oil direct ignition modulating with shutdown facility for adjustable head Light oil direct transformer ignition LO V3 V2 MIN LK position Stage operation Figure 16 Fuel train application fuel valve control Legend fuel trains LK Air dampe...

Page 28: ...n 2 stage Modulating burner Circulation from phase 38 max 45 s as soon as heavy oil direct start ON in phase 38 phase change in phase 40 Heavy oil direct start OFF at the end of phase 38 repetition max 3 times in total Figure 18 Fuel train application heavy oil direct ignition modulating Direct ignition with heavy oil multistage Direct ignition with heavy oil modulating ...

Page 29: ...ve Z Ignition Β Note on dual fuel burner Gas trains G Gp1 and Gp2 1 can be randomly combined with oil trains LO and HO for operation with dual fuel burners since these fuel trains operate independently Caution Oil trains LOgp and HOgp are designed for ignition with a gas pilot They must only be combined with a special gas train Gp2 for operation with a dual fuel burner 1 With Gp2 permitted with ha...

Page 30: ... V1 oil V3 oil V2 oil Figure 20 Fuel train application dual fuel burner gas light oil with gas pilot ignition Light oil with gas pilot ignition V2 Stage operation MIN MAX V1 V2 V3 V3 TSA2 TSA1 Figure 21 Fuel train application fuel valve control Legend fuel trains LO Light oil TSA Safety time PV Pilot valve V Fuel valve Dual fuel burner gas light oil with gas pilot ignition Fuel valve control ...

Page 31: ...pilot ignition Figure 23 Fuel train application fuel valve control Legend fuel trains HO Heavy oil PV Pilot valve TSA Safety time V Fuel valve Circulation from phase 44 max 45 s as soon as heavy oil direct start ON in phase 44 phase change in phase 50 Heavy oil direct start OFF at the end of phase 44 repetition max 3 times in total Dual fuel burner gas heavy oil with gas pilot ignition Fuel valve ...

Page 32: ...tor for intermittent operation only QRA2 QRA4 QRA10 flame detector with AGQ1 for intermittent operation at AC 120 V AC 230 V QRA7 for continuous or intermittent operation Caution Continuous operation with the QRA2 QRA4 QRA10 with AGQ1 and QRB is not possible Caution Do not use terminal X10 02 pin 1 This also applies to the connection of idle lines if the LMV5 is used for continuous operation Cauti...

Page 33: ...rallel operation of QRI QRA7 QRB and ION flame signal if only the QRI QRA7 QRB indicates a flame QRI_B flame signal if the QRI QRA7 QRB indicates a flame ION is not evaluated ION and not QRI_B parallel operation of QRI QRA7 QRB and ION flame signal if only ION indicates a flame ION parallel operation of QRI QRA7 QRB and ION flame signal if ION indicates a flame the QRI QRA7 QRB will not be evaluat...

Page 34: ...otection against electrical shock is ensured Short circuit current Max AC 0 5 mA Required detector current Min DC 6 µA display flame approx 50 at factory setting of StandardFactor parameter Possible detector current Max DC 85 µA display flame approx 100 at factory setting of StandardFactor parameter Permissible detector current during extraneous light test Max DC 0 3 µA Permissible length of detec...

Page 35: ...out QRA2 QRA10 refer to Data Sheet N7712 For more detailed information about QRA4 refer to Data Sheet N7711 Caution Flame detectors QRA2 QRA4 QRA10 must not be used when extraneous light suppression is activated since detector tests are not made in that case parameter ExtranLightTest deactivated Possible ionization current Max DC 10 µA Display flame approx 100 with factory setting of the parameter...

Page 36: ...nection diagram QRA When laid together with other cables e g in a cable duct the length of the 2 core cable between QRA and AGQ1 must not exceed 20 m A maximum cable length of 100 m is permitted if the 2 core cable is run at a distance of at least 5 cm from other live cables The length of the 4 core cable between AGQ1 and LMV5 is limited to 20 m A maximum cable length of 100 m is permitted if the ...

Page 37: ...ame approx 50 with factory setting of the parameter StandardFactor Possible signal voltage X10 02 pin 6 Max DC 5 5 V Display flame approx 100 with factory setting of the parameter StandardFactor Permissible signal voltage during extraneous light test X10 02 pin 6 Max DC 0 3 V Perm length of detector cable 6 wire cable Signal cable no 3 4 and 5 Max 10 Max 100 m laid separately from L N and PE as sh...

Page 38: ...urred Measurement of the voltage at terminal QRB during burner operation gives a clear indication If the voltage drops below 1 V safety shutdown will probably be initiated For that reason before using a highly sensitive photoresistive flame detector QRB1B or QRB3S it should be checked whether such a detector is really required Increasing line capacitance between the QRB terminal and mains live L a...

Page 39: ...L5menu Params Display BurnerControl Configuration ConfigFlameDet FlameSignal Standardize During standardization a standardization factor StandardFactor is determined which can be displayed and reset Parameter StandardFactor The accuracy of the display is a maximum of 10 depending on the tolerances of the components It should also be noted that for physical reasons there is no linear relationship b...

Page 40: ...essary a second switching contact redundancy contact can also be used for the external flame safeguard This must always be inverse to the first switching contact Mains voltage present no flame Mains voltage not present flame This contact can be connected to input X6 01 pin 1 start release oil if the input has been parameterized to HT FG RedCo Parameter StartReleaseOil HT FG RedCo deactivated activ...

Page 41: ... ended as soon as the high temperature signal temperature 750 C of the external safety limit thermostat is present at LMV5 input X6 01 pin 3 If the high temperature signal is no longer present during operation conventional flame supervision is performed If the high temperature signal is present during standby and during the startup sequence no conventional flame supervision is performed no extrane...

Page 42: ...tch off the power supply to the fuel valves and ignition Typically the following contacts are included in the safety loop External burner switch ON OFF Safety limit thermostat safety pressure limiter SLT SPL External temperature limiter pressure switch if required Water shortage switch Caution Temporarily switching contacts 1 s push buttons or similar must not be included in the safety loop End sw...

Page 43: ...tion is canceled The unit will reset and then change to standby There are 2 ways to reset the system 1 Reset on the AZL5 If the LMV5 is in lockout position it can be reset by pressing Esc followed by Enter 2 Reset via the button on the connection terminal X4 01 pin 4 If the LMV5 is in lockout position a reset can be carried out by pressing the button for 1 3 seconds Longer or shorter presses on th...

Page 44: ... contactor contact FCC or a flue gas recirculation pressure switch FGR PS The input serves for checking the position of the fan contactor The input is active both with oil fired and gas fired operation A signal is expected at this input after control of the fan Parameter FGR PS FCC The input is used for connecting an air pressure switch required for flue gas recirculation FGR Parameter FGR PS FCC ...

Page 45: ...eters Parameter RotSpeed PS on RotSpeed PS off Parameters RotSpeed PS on and RotSpeed PS off define the speed limit of the VSD above which the connected extra air pressure switch is monitored When the current speed exceeds RotSpeed PS on the air pressure switch must deliver an ON signal When the current speed is below RotSpeed PS off the air pressure switch must deliver an OFF signal When the curr...

Page 46: ...ore request for heat the burner is shut down Depending on the parameterization the fuel valves are either shut the moment the period of time is completed by the timer or after the MIN load is reached Low fire shutdown In operation with the internal load controller or with load control the input can be deactivated via BACS This means that a wire link at this controller input is not required In oper...

Page 47: ...pin 2 CLOSED 3 stage 2 stage 0 0 Stage 1 Stage 1 0 1 Stage 1 Stage 1 1 0 Stage 2 Stage 2 1 1 Stage 3 Stage 2 X5 03 pin 3 OPEN X5 03 pin 2 CLOSED 3 stage 2 stage 0 0 Stage 1 Stage 1 0 1 Stage 3 Stage 2 1 0 Stage 2 Stage 2 1 1 Stage 3 Stage 2 X5 03 pin 3 OPEN X5 03 pin 2 CLOSED 3 stage 2 stage 0 0 Stage 1 Stage 1 0 1 Stage 2 Stage 1 1 0 Stage 3 Stage 2 1 1 Stage 3 Stage 2 Parameter Config X5 03 LMV5...

Page 48: ...losed position indicator input CPI PD VP The input is only active when firing on gas and when valve proving is activated valve proving of gas valves Parameter PS VP CPI PS VP CPI Gas CPI It is used for checking the gas valves fully closed position For that purpose the gas valves closure contacts for the fully closed position are to be connected in series using this input The input is active in bot...

Page 49: ...ed for checking the oil valves fully closed position To do this the valve closure contacts of the oil valves must be connected in series and then to this input The input is active in gas and oil fired operation Oil fired operation In phases 12 to 38 and phases 72 to 78 a check is made to ensure that the input is set to On valve closed and in phases 54 and 60 to Off valve open In standby Off valve ...

Page 50: ... Note If input X7 03 pin 2 start release gas is used as a valve closure contact the start release gas e g from the contact of an external outside air damper can be connected in series to the gas pressure switch min at this input X9 03 pin 4 Input X9 03 pin 4 can be parameterized as follows Activate gas pressure min Deactivate gas pressure min for the oil fuel trains with gas pilot LOgp and HOgp xO...

Page 51: ...osition For that purpose the valve closure contacts of the gas valves are to be connected in series and then to this input The input is active both with gas fired and oil fired operation Firing on gas In the phases 12 to 38 and in the phases 72 to 78 the input is checked for ON valve closed and in phases 54 and 60 the input is checked for OFF valve open In Standby OFF valve open results in start p...

Page 52: ...hases 72 to 78 the input is checked for ON valve closed and in phases 54 and 60 the input is checked for OFF valve open In Standby OFF valve open results in start prevention with display message The display message can be output with a time delay can be set with parameter DelayStartPrev Firing on gas In the phases 12 to 38 54 60 and in the phases 72 to 78 the input is checked for ON valve closed I...

Page 53: ...ing on oil It is anticipated that the pressure signal appears during preignition to be critically valued with HOgp in phase 44 If there is no oil pressure or if the oil pressure drops safety shutdown is initiated in any case The signal is valued from safety time If there is no oil pressure safety shutdown is initiated in any case Parameter OilPressureMin activated OilPressureMin act from ts Β Note...

Page 54: ...ReacTme 0 2s MaxSafetyTGas 4 1 5 14Start release oil X6 01 pin 1 The input is used for connecting a start signal e g from the release contact of an external outside air damper It is only active when firing on oil The signal is anticipated in phase 21 If the signal is not delivered or lost shutdown is initiated The input can be deactivated With the HT FW RedKo setting the input can also be used for...

Page 55: ... signal in these phases leads to the heavy oil direct start i e switch to phase 40 or 50 A missing signal leads to lockout within 45 seconds 38 44 62 Heavy oil direct start active in phase 38 for HO or phase 44 for HOgp and in phase 62 The input is also supervised in operating phases 50 62 a failure leads to a safety shutdown act 21 62 Heavy oil direct start active in phase 21 to 62 In phase 21 st...

Page 56: ...n the alarm is activated again Deactivation only applies to the alarm output lockout or start prevention continue to be active Parameter Alarm act deact activated deactivated 4 1 6 2 Fan type No SI X3 01 pin 1 This output is used for controlling a fan power contactor 200 VA When changing to the lockout position the fan continues to run for an adjustable period of time When continuous purging is ac...

Page 57: ... SI X9 01 These outputs are used for connecting the gas valves in accordance with the selected fuel train Fuel trains Sequence diagrams Parameter FuelTrainGas DirectIgniG Pilot Gp1 Pilot Gp2 4 1 6 6 Operation indication gas oil type SI X8 01 This output shows the operating position of the LMV5 The outputs are connected directly to valve output V1Oil or V1Gas The operating position outputs for oil ...

Page 58: ...comes automatically active Direct coupling is only permitted in the case of oil firing alone Β Note With both variants parameter OnTmeOilIgnition can be left set to on in Ph38 In that case short or long preignition will automatically be correct depending on the selection of OilPumpCoupling Parameter OilPumpCoupling Directcoupl 4 1 6 8 Start signal or pressure switch relief valve type No SI X4 03 D...

Page 59: ...irection against internal maximum or minimum values In other words safety times can only be shortened and tv times can only be extended Attention On the OEM access level it is possible to make parameter settings that differ from application standards for the maximum safety time MaxSafetyTGas or MaxSafetyTOil For this reason check whether the parameter settings made are in compliance with the appli...

Page 60: ...nd Parameter ReacTmeLossFlame 0 2 3 2s Attention The safety time in operation may only be extended if the applicable standards for the application allow this For applications to EN 676 or EN 267 the basic setting for ReacTmeLossFlame of 0 2 second must be retained so that safety time during operation for internal flame supervision is kept below 1 second The parameter is also effective when using a...

Page 61: ...g the gas valve the pressure in the test space is not allowed to rise above the switching point of pressure switch valve proving e g gas pressure in operation x 0 5 Step 3 t82 Fill test space Then the gas train is filled by opening the gas valve on the gas network side Step 4 t83 Gas pressure test After closing the gas valve the gas pressure is not allowed to fall below the switching point of pres...

Page 62: ...is performed The input for the valve proving function can also be used for the CPI valve closure contact Β Note If gas valve proving is parameterized to take place with startup and shutdown the gas valves must perform additional switching cycles This means that wear and tear of the gas valves will increase Parameter ValveProvingType No VP VP startup VP shutdown VP stup shd Config_PS VP CPI PS VP C...

Page 63: ...ration to its shutdown behavior Refer to chapter Special features parameter ShutdownBehav Unchanged PostpurgeP HomePos The safety phase is an intermediate phase that is ended before lockout occurs The safety loop relays are deenergized but lockout will not yet initiated The alarm relay is not yet energized In the safety phase the fan motor maintains the state of the previous phase that is it remai...

Page 64: ...n reset Only LMV50 With no flame at the end of safety time Repetition limited value No flame at the end of first safety time Setting choices for gas and oil together 1 3 none 2 repetitions Β Note Changes only become active after a reset power on reset Caution Setting only in accordance with the relevant application standard With loss of flame Repetition limit value Loss of flame Β Note Changes onl...

Page 65: ...layStartPrev AlarmStartPrev activated deactivated AlarmDelay 4 2 3 4 Safety shutdown in standby mode This parameter is used to determine the shutdown behavior should errors in standby mode occur so that events e g opening of safety loop in standby mode which in case of a heat request would lead to start prevention trigger safety shutdown and when the respective repetition counter has elapsed locko...

Page 66: ...igned to phases 30 and 34 These are minimum times that are always observed in phases 30 prepurge time 1 and 34 prepurge time 3 These parameters determine the minimum times for prepurging part 1 and part 3 Parameter PrepurgePt1Gas PrepurgePt1Oil PrepurgePt3Gas PrepurgePt3Oil Example If the sum of prepurge time part 1 and part 3 exceeds PrepurgeTmeXX or PrepurgeSafeXX this longer prepurge time appli...

Page 67: ...stop function is maintained until manual deactivation takes place If the system stops at a program stop a message appears on the AZL5 Parameter ProgramStop deactivated 24 PrePurgP 32 PreP FGR 36 IgnitPos 44 Interv 1 52 Interv 2 72 PostPPos 76 PostPFGR 4 2 3 8 Gas shortage program When gas pressure is insufficient input gas pressure switch min the LMV5 ensures that a selectable number of start atte...

Page 68: ...s a request for heat in phase 78 a direct change to startup is made via phase 79 to phase 24 without switching the fan off so that the startup sequence will be accelerated But this would suppress checking the OFF position of the air pressure switch in standby For this reason the pressure switch relieve valve is controlled in phase 79 This valve ensures that the air pressure switch is relieved of t...

Page 69: ...riable speed drive is set to 0 if the no load speed is not parameterized to 0 Attention The off Sloop setting causes that the fan and the variable speed drive to not be controlled if the safety loop burner flange is open This must be taken into account with respect to return heat Parameter ContinuousPurge deactivated activated off Sloop deac VSD SL 4 2 3 12Continuous pilot only LMV50 LMV52 For fue...

Page 70: ...ed on and supervised in the same way as for continuous purging The actuators used for determining the amount of air are driven to their postpurge positions If no mains voltage signal is present the device behaves as for without continuous purging in standby mode Parameter Config X5 03 CoolFctStby Attention This function may only be used for non safety related multiple burner applications This mean...

Page 71: ...selector on the LMV5 is set to INT or when no selector is connected Ι Note Fuel selection via BACS should be cyclically repeated There is no definition of priorities between fuel selection via BACS and fuel selection via the AZL5 which means that the selection used is the selection made last After fuel changeover the burner control maintains or changes to standby Normal start Now a new start is ma...

Page 72: ...ant start counters count up with each burner startup cycle phase 20 This also occurs if startup is subsequently aborted The following counters are available and can be displayed using the AZL52 in the Operation StartCounter menu some of the settings can also be adjusted Parameter GasStartCount Number of startups for gas start counter adjustable OilStartCount Number of startups for oil start counte...

Page 73: ...e safeguard External flame safeguard Shutdown Gas oil Timer Result Relationship Timer 1 Timer 2 Timer 3 Phase max time Operating mode gas Controller ON OFF Flame signal 20 Air pressure switch Fan contactor contact Flue gas recirculation pressure switch Gas oil Fan motor Ignition Shutoff valve ACTUATORS CPI gas CPI oil Pressure switch release Pressure switch release inverse Fuel Actuators Gas addre...

Page 74: ...ame safeguard External flame safeguard Shutdown Gas oil Timer Result Relationship Timer 1 Timer 2 Timer 3 Phase max time Operating mode gas Controller ON OFF Flame signal 20 Air pressure switch Fan contactor contact Flue gas recirculation pressure switch Gas oil Fan motor Ignition Shutoff valve ACTUATORS CPI gas CPI oil Pressure switch release Pressure switch release inverse Fuel Actuators Gas add...

Page 75: ...ernal flame safeguard External flame safeguard Shutdown Gas oil Timer Result Relationship Timer 1 Timer 2 Timer 3 Phase max time Operating mode gas Controller ON OFF Flame signal 20 Air pressure switch Fan contactor contact Flue gas recirculation pressure switch Fan motor Ignition Shutoff valve ACTUATORS CPI gas CPI oil Pressure switch release Pressure switch release inverse Fuel Actuators Gas add...

Page 76: ... Pin 3 X6 01 Pin 1 X6 01 Pin 3 Gas Öl Redundancy contact External flame safeguard External flame safeguard Shutdown Gas oil Timer Result Relationship Timer 1 Timer 2 Timer 3 Phase max time Controller ON OFF Flame signal 20 Air pressure switch Fan contactor contact Flue gas recirculation pressure switch Fan motor Ignition Shutoff valve ACTUATORS CPI gas CPI oil Pressure switch release Pressure swit...

Page 77: ...el valve 2 Fuel valve 1 Fuel valve 3 Gas Öl Redundancy contact External flame safeguard External flame safeguard Shutdown Gas oil Timer Result Relationship Timer 1 Timer 2 Timer 3 Phase max time Controller ON OFF Flame signal 20 Air pressure switch Fan contactor contact Flue gas recirculation pressure switch Fan motor Ignition Shutoff valve ACTUATORS CPI gas CPI oil Pressure switch release Pressur...

Page 78: ...perating mode oil Fuel valve 2 Fuel valve 1 Fuel valve 3 Gas Öl Redundancy contact External flame safeguard External flame safeguard Shutdown Gas oil Timer Result Relationship Timer 1 Timer 2 Timer 3 Phase max time Controller ON OFF Flame signal 20 Air pressure switch Fan contactor contact Flue gas recirculation pressure switch Fan motor Ignition Shutoff valve ACTUATORS CPI gas CPI oil Pressure sw...

Page 79: ...ilot valve Oil Oil Operating mode oil Fuel valve 2 Fuel valve 1 Fuel valve 3 Gas Öl Redundancy contact External flame safeguard External flame safeguard Shutdown Gas oil Timer Result Relationship Timer 1 Timer 2 Timer 3 Phase max time Controller ON OFF Flame signal 20 Air pressure switch Fan contactor contact Flue gas recirculation pressure switch Fan motor Ignition Shutoff valve ACTUATORS CPI gas...

Page 80: ... 36 Ignition position 38 Preignition Z ON 40 Burner valve ON 42 Ignition OFF 44 Interval 1 ti1 50 2nd safety time 52 Interval 2 ti2 54 Low fire position 60 Operation 1 stationary 62 Operation 2 Low fire position 70 Postburne time 72 Postpurge position 74 Postpurge time tn1 76 Flue gas recirculation postpurge position 78 Postpurge time tn3 79 Direct start 80 Valve proving evacuating time 81 Valve p...

Page 81: ... low fire t70 Afterburn time t74 Postpurge time 1 gas oil tn1 t78 Postpurge time 3 gas oil tn3 t80 Valve proving evacuate time t81 Valve proving time atmospheric pressure t82 Valve proving filling time t83 Valve proving time gas pressure tmn1 Min time extraneous light test 5 s after skipping prepurge tmx1 Max damper running time tmx2 Max time startup release tmx3 Max time circulation heavy oil tn ...

Page 82: ... 70 Without valve proving 70 With valve proving 80 62 Stop upto phase maximum time 01 0 3 s Stop upto phase maximum time 10 Output OFF input Don t care Output ON input ON Permissible positioning range In Standby actuator can travel within the permissible positioning range but is always driven to the home position Must be in the home position before changing the phase 0 Position as supplied 0 90 Ac...

Page 83: ... before fist safety time LO HO or second safety time LOgp HOgp 15 Parameter GasPressureMin deact xOGP pressure switch min Pmin can be deactivated for oil programs with gas pilot 16 Parameter OilPumpCoupling direct_coupl shutoff valve oil to be connected to output Oil pump magnetic clutch Output is active when fan is on and for another 15 s after fan is switched off 18 Parameter Alarm act deact dea...

Page 84: ...ombinations Auxiliary actuator 1 or VSD or auxiliary actuator 3 or VSD auxiliary actuator 3 Β Note Up to 4 actuators and 1 variable speed drive can be connected to the LMV50 LMV51 3 Of these up to 3 actuators can be controlled simultaneously The fuel actuators cannot be controlled simultaneously Addresses LMV52 Parameter 1 Air damper AirActuator 2 Fuel 1 gas GasActuator 3 Fuel 2 oil OilActuator 4 ...

Page 85: ...ctivated air influen AuxActuator 2 deactivated activated air influen AuxActuator 3 deactivated activated air influen VSD deactivated activated air influen Meaning deactivated Deactivated Damper act AUX actuator 1 damper mixing device active activated VSD VSD activated AUX3 AUX actuator 3 damper flue gas recirculation damper active VSD AUX3 VSD and AUX actuator 3 flue gas recirculation damper activ...

Page 86: ... If this is not observed these points must be deleted before the direction of rotation is reversed For that purpose the DeleteCurves function is offered in the menu for selecting the direction of rotation Select the direction of rotation as standard or reversed The standard direction of rotation is anticlockwise when facing the end of the drive shaft Parameter LMV51 LMV50 LMV51 3 LMV52 1 AirActuat...

Page 87: ...not reach the required position within the maximum time safety shutdown is initiated position check The prepurge time starts only when the actuators have reached their prepurge positions The prepurge position is only defined for the actuators used for the control of air and can be parameterized depending on the type of fuel The fuel actuators maintain their home positions Parameter LMV51 LMV50 LMV...

Page 88: ...e curvepoint which was set using the StartPoint Op parameter This enables a burner with a high modulation range during operation which would not burn when started cold from the lowest modulation output to be started with a higher initial output determined by the StartPoint Op parameter Parameter StartPoint Op If the MinLoadGas MinLoadOil parameter was set to a value above the StartPoint Op as soon...

Page 89: ...ng to the low fire position after ignition Ι Note The system also allows ignition positions outside the defined range of fuel air ratio control that is not between nominal load and low fire In the operating position the dampers are adjusted according to demand The ratio control curves are defined for gas and oil For modulating operation the output can be adjusted in increments of 0 1 The actuators...

Page 90: ... adjusted depending on the type of fuel Parameter LMV51 LMV50 LMV51 3 LMV52 PostpurgePosAir PostpurgePosGas PostpurgePosOil PostpurgePosAux1 PostpurgePosAux2 PostpurgePosAux3 PostpurgePosVSD 6 4 7 Actuator speed outside normal operation TmNoFlame The actuators speed when traveling to the home prepurge ignition and postpurge positions can be parameterized Outside normal operation all actuators trav...

Page 91: ...o ensure correct fuel air ratio control at any time the actuators travel in steps of maximum 1 2 seconds This traveling time corresponds to a positioning angle of 3 6 at an operating ramp of 30 seconds 90 For each of these steps an individual speed is calculated for each actuator so that all actuators reach the required positions at the same time The position check is always made between the indiv...

Page 92: ... travel The speeds of the individual actuators are calculated such that they reach their targets at the same time Β Note When parameterizing the multistage operating ramp the speed of the slowest actuator must be taken into consideration When changing from stage 1 to stage 2 switch on point S2 is approached first starting from operating point S1 Now the second fuel valve is opened Then the system ...

Page 93: ... possibly be In such a case it is assumed that the amount of unburnt or partly burnt gases produced within 3 seconds is not sufficient to cause deflagrations or explosions within the Safety time fuel air ratio control or just after it that is after the valves are shut down As mentioned above it should also be considered that the smaller the deviation from the required state the smaller the proport...

Page 94: ...ections are then followed by another fine adjustment If during the load change an actuator is mechanically blocked the supply of fuel is shut down within 3 or 8 seconds 7550d18e 1115 t Pos 5 s Value Pos tolerance Value Pos tolerance 2 Alarm Actual position Required position Figure 42 Locking on change of load approaching 2 value position tolerance Parameter Pos tolerance It may be necessary to adj...

Page 95: ...isplay on AZL52 Β Note The parameter influences the tolerance of the position assessment for all actuators actuators and variable speed drive at the same time Attention This parameter may only be set in a way that does not affect the combustion It may be necessary to set a higher residual oxygen content on the system or to install an O2 supervision if this value is increased above the value set in...

Page 96: ...bdivided into traveling steps of 1 2 seconds After each step the required position must be reached The target position is considered to be reached when the actuator has traveled to a band width of Pos tolerance value neutral band If the actual position does not agree with the required position readjustments are made whereby the dynamic safety time of fuel air ratio control is applied In multistage...

Page 97: ...ves This means If the minimum load is smaller than the low fire load any load below low fire is ignored And if the maximum load is greater than the nominal load it is ignored as well If the minimum load is greater than or equal to low fire it assumes the role of the low fire load which means that after ignition the minimum load is considered The 2 parameters MinLoad and MaxLoad can be set dependin...

Page 98: ...he traveling speeds of the actuators for the different burner states can be adjusted The time to be parameterized is the period of time the actuator requires to cover an angular rotation of 90 Traveling speed in the phases with no flame e g driving to prepurge Parameter TmeNoFlame Traveling speed in the operating position in modulating operation Parameter OperatRampMod Traveling speed in the opera...

Page 99: ...orced However if the actuators cannot reach the positions required by lockout they would be damaged due to overtemperatures To prevent this the actuators are deactivated after a maximum time of 35 seconds or at 20 above the value parameterized for TmeNoFlame Refer to chapter Displays and settings special function curve adjustment fuel air ratio control Curve adjustment ...

Page 100: ...tistage burners are automatically adapted if required The internal controller is available as an option for use with the LMV51 LMV51 0 with no load controller LMV51 1 with load controller For LMV50 LMV51 3 and LMV52 the load controller is integrated as standard Β Note For operation and parameterization refer to chapter Display and operating unit AZL5 7 2 Connection diagram X63 Pt100 Output 0 10 V ...

Page 101: ... External load controller In this operating mode an external load controller e g RWF5 is used The internal control algorithm is not active The internal temperature limiter function can be activated The external load controller must have 3 contact outputs which as shown below must be connected to the LMV5 External load controller Basic unit LMV51 ON OFF or stage 1 OPEN or stage 2 CLOSED or stage 3 ...

Page 102: ...quest for heat are internally generated and handled Terminals X62 pin 1 and X62 pin 2 can be used to make an external changeover between the internal setpoints W1 and W2 Internal load controller FARC BU BC BU Manipulated variable demand for heat Manipulated variable demand for heat 7550b02E 0302 Manipulated variable 0 100 Demand for heat AZL CAN module basic unit X62 1 X62 2 W1 W2 CAN bus Figure 4...

Page 103: ...l load controller Terminals X62 pin 1 and X62 pin 2 can be used for changeover from the external predefined setpoint to the internal setpoint W1 e g in the event the BACS fails triggered via a potential free contact load controller software version V01 50 or higher AZL5 CAN module basic unit FARC BU Demand for heat BC BU Manipulated variable demand for heat Manipulated variable demand for heat CAN...

Page 104: ...geover from externally e g in the event the BACS fails from the external predefined setpoints to the internal setpoint W1 using a potential free contact load controller software version V01 50 or higher With a predefined setpoint via DC 0 10 V signal voltage in the case of changeover to the internal setpoint W1 must be separated from input X62 pin 2 Internal load controller AZL5 Heat demand 7550b0...

Page 105: ...be used to make a changeover externally e g in the event of a failure in the building automation from the external predefined setpoint to the internal setpoint W1 using a potential free contact software version V01 50 or higher With a predefined setpoint via 0 10 V signal the voltage in the case of changeover to the internal setpoint 1 W1 must be separated from input X62 pin 2 Predefined output 0 ...

Page 106: ...eter Autom Manual Off Automatic Manual Burner off Parameter SetLoad 0 100 S1 S2 S3 Parameter Autom Manual Off is used to define whether the burner is operated manually or automatically controller mode Burner off The LMV5 remains in or goes into standby mode irrespective of whether the boiler controller demands heat or not An error message is not displayed Manual The burner is switched on provided ...

Page 107: ...roller To improve availability a potential free contact at inputs X62 pin 1 X62 pin 2 can be used to switch from any of the other operating modes to the internal load controller In that case setpoint W1 applies For the selected external operating mode the switch connected to X62 pin 1 X62 pin 2 is open To switch over to the internal load controller the switch closes ...

Page 108: ...ng mode R ON when Actual value setpoint SD_ModOn R OFF when Actual value setpoint SD_ModOff Multistage mode R ON when Actual value setpoint SD_Stage1On R OFF when Actual value setpoint SD_Stage1Off or R OFF when Actual value setpoint SD_Stage3Off low fire operation always applies if none of the 2 thresholds Q2 and Q3 has been exceeded Β Note The following standards also have to be observed for mul...

Page 109: ...tion mode the load controller calculates the manipulated variable by means of a PID algorithm depending on the control deviation Example 1 The load is very small so that the controller must switch to ON OFF mode Setpoint Actual value 7550f07E 0502 R ON Y OPEN Y CLOSED W SD_ModOff SD_ModOn Figure 53 Modulating control function diagram example 1 Example 2 The load is greater than the amount of heat ...

Page 110: ... Xp 2 strong fast Xp 500 weak slow Integral action time I part Tn 0 2 000 s 0 no I part Reaction Tn 1 strong fast Tn 2 000 weak slow Derivative action time D part Tv 0 1 000 s 0 no D part Reaction Tv 1 weak slow Tv 1 000 strong fast The controller s memory contains 5 standard parameter sets If required 1 of these 5 PID triple values can be copied to the storage locations for the actual values so t...

Page 111: ...ol In multistage mode the PID controller is active which means that no adaption can be made there Preconditions for adaption to be started Boiler combustion plant has fully reached the operating temperature Actual value lies 10 20 below the setpoint Adaption can be activated in different ways 1 Adaption from manual operation a Adaption from shutdown or standby Manual b Adaption from startup or ope...

Page 112: ...d from the measured values and the start values These values are then used to calculate the control parameters If the adaption load is below 100 a correction factor will be used Adaption will be terminated or stopped before the setpoint is reached in the case of unusual developments of the actual value e g pure dead time member with extensive dead time End of adaption is communicated to the AZL If...

Page 113: ...nd give hints on remedy Here the behavior of a controlled system of 3rd order for a PID controller is shown The procedure for setting the control parameters can also be applied to other types of controlled systems Practical value of Tn Tv 4 6 XP too small XP too great t x w 7550d21 0501 t x w 7550d22 0501 Tn and Tv too small Tn and Tv too great t x w 7550d23 0501 t x w 7550d24 0501 Optimum setting...

Page 114: ...t is called Minimum possible step of the controlling element With an external load controller this parameter acts as a hysteresis on the current load This means that as long as the new load is not outside the current load MinActuatorStep the controller does not react Example Current load 40 MinActuatorStep 5 If the setpoint is within 40 5 there is no reaction from the control The system only react...

Page 115: ...on thresholds Q2 and Q3 This approach is used to reduce the switching frequency of the higher stages The integral of the control deviation over time is generated Switching on of stage 2 is locked until the temperature has dropped below the adjustable reaction threshold Q2 Switching on of stage 3 is locked until the temperature has dropped below the adjustable reaction threshold Q3 If the temperatu...

Page 116: ...point Actual value 7550f09E 0502 SD_Stage1Off W SD_Stage2Off SD_Stage3Off SD_Stage1On Stage 2 Figure 57 Multistage control function diagram 1 Example 2 Reaction thresholds Q2 and Q3 for switching on stages 2 and 3 are exceeded and the stages are switched on In this case stage 1 is switched off when threshold W SD_Stage1Off is reached R ON Stage 1 Stage 3 Q2 Q3 Setpoint Actual value Q2 Q3 7550f10E ...

Page 117: ...re sensor at the input X61 internal temperature switch function deactivated PressSensor Pressure sensor at the input X61 internal temperature switch function deactivated Pt100Pt1000 Temperature sensor Pt100 at input X60 for temperature controller and temperature limiter function and temperature sensor Pt1000 at input X60 additionally for temperature limiter function Pt100Ni1000 Temperature sensor ...

Page 118: ... 400 C or equivalent to 752 F 850 C 1562 F Parameter Measuring range PtNi Open circuit detection Short circuit detection 150 C Approx 165 C 15 C 400 C Approx 440 C 40 C 850 C Approx 1000 C 85 C Reducing the variable measuring range parameter var RangePtNi does not change the short circuit detection or open circuit detection Parameter MeasureRangePtNi 150 C 302 F 400 C 752 F 850 C 1562F var RangePt...

Page 119: ...nterruption disappears within the safety phase a change to standby is made Otherwise lockout is triggered Parameter MeasureRange PressSensor 2 wire circuit Line balancing is not required if the resistances of the measuring leads are small compared to the sensor s resistance The temperature limiter function is active Suitable sensors are QAE22 5A QAE21 1 and QAE2112 0151 Start of measuring range 0 ...

Page 120: ... accomplished by means of an external potential free contact connected to input 3 X62 External predefinition of setpoint load W1 is active as standard contact open Parameter SetpointW1 0 2000 C 0 100bar SetpointW2 0 2000 C 0 100bar Input for an external predefined setpoint suited for a predefined load or setpoint changeover The input is passive not powered by the LMV5 Typically an active PC output...

Page 121: ...e and setpoint Parameter Ext MinSetpoint Ext MaxSetpoint Example DC 0 10 V or 4 20 mA with MRange TempSens 150 C Setting parameter Ext MinSetpoint 33 Setting parameter Ext MaxSetpoint 80 0 C Example External setpoint min External setpoint max Figure 59 Setpoints If parameterized for Ext LC X62 the input signal is interpreted as the predefined load This is internally transmitted to the fuel air rat...

Page 122: ... the 2 internally defined setpoints W1 and W2 can be implemented by means of an external potential free contact The settings described under Input 3 can also be made from a BACS connected to the AZL5 via RS 232 and bus interface An external predefined setpoint exists with Int LC bus An external predefined load exists with Ext LC bus Parameter LC_OptgMode intLC o DDC extLC o DDC External predefined...

Page 123: ...ensors are monitored for short circuits and line interruptions Activation deactivation of the temperature limiter function depends on the parameterization of the actual value input parameter SensorSelect refer to chapter Actual value X Short circuits or line interruptions of the temperature limiter s sensors lead to R OFF temperature limiter OFF and to the relevant error message Parameter TL_Thres...

Page 124: ...e time constant T of the temperature sensor with protection pocket must not exceed 45 seconds 7550d19E 0502 1 T Ι 0 63 Temperature ΙM Xa Time t Figure 60 Instant temperature change of test medium to determine the time constant Legend ΙM Temperature of test medium Xa Output signal of temperature sensor T Time constant Requirements placed on sensor and protection pocket ...

Page 125: ... via the AZL5 to check the actual values the normal display flashes up alternately Parameters Thermal shock protection on off ColdStartOn Activation value for thermal shock protection ThresholdOn Deactivation value for thermal shock protection ThresholdOff Load step for modulating control only StageLoad Setpoint step modulating StageStep_Mod Setpoint step multistage StageStep_Stage Max time modula...

Page 126: ...tages release no release When stages 2 and 3 are locked the system may maintain low fire operation until the cold start function is ended if the output delivered by stage 1 is not sufficient to reach the switch off threshold for thermal shock protection Spacing of temperature lines corresponds to the setpoint steps Manipulated variable Actual value Setpoint Threshold OFF Threshold ON Stage 1 Stage...

Page 127: ... and activated Additional Sensor set to Pt100 or Pt1000 or Ni1000 for the CSTP function the temperature signal from this additional sensor is used instead of the pressure signal from the boiler controller and also the temperature setpoint for the additional sensor Setpoint AddSens is used The parameters ThresholdOn and ThresholdOff are then percentage values from this temperature setpoint Setpoint...

Page 128: ...Press X61 Load output Load appears after the internal fixed setting see table below If other alternative settings of load output occur the scalable parameter Load 0 can be used Burner OFF 0 100 I mA 4 4 20 Burner OFF Stage 1 Stage 2 Stage 3 I mA 4 5 10 15 Β Note When resetting the LMV5 the output is set to 0 mA for approx 30 seconds When selecting the other setting values all with the exception of...

Page 129: ...troller of the LMV5 has an analog input X62 This means that the individual boilers can be a released locked and b operated at the required output or set to the required setpoint 7 10 2 Multiboiler plants by means of digital interface For that purpose BACS terminal X72 on the AZL5 can be used via the bus interface Inputs Controller release lock Predefined setpoint or predefined load Outputs Actual ...

Page 130: ...130 327 Building Technologies Basic Documentation LMV5 CC1P7550en 8 Display and operating unit AZL5 22 05 2018 8 Display and operating unit AZL5 Figure 63 Display and operating unit AZL5 ...

Page 131: ...72 Jack RJ45 Jack COM1 PIN 2 RXD 3 TXD 5 GND X71 Operating field Figure 64 Assignment of AZL5 terminals The AZL5 has three different interfaces connections COM1 X71 Port for PC RS 232 for parameterization and visualization with the help of the PC software SUB D 9 pins COM2 X72 Port for BACS RJ45 jack via external bus interface RS 232 or RS 485 CAN X70 CAN bus connection to LMV5 RJ45 Sub D connecto...

Page 132: ... 7 8 9 TxD GND RxD TxD GND 1 2 3 4 5 6 7 7 8 8 9 Figure 65 Connecting cable to the PC Trebing Himstedt SUB D AZL5 RJ45 Trebing Himstedt SUB D Converter RS 232 RS 485 AZL5 RJ45 Pin RS 232 Pin Pin RS 485 Depending on Pin 2 RxD 3 3 Bus P manufacturer 1 3 TxD 1 8 Bus N 3 5 GND 4 6 4 6 Connecting cable to the PC null modem cable Pin assignment cable connection Siemens AZL5 Trebing Himstedt SPI3 ...

Page 133: ...rside of the AZL5 This interface can also be used as the output for delivering trending data The interface configuration of the Modbus is also used here 7550b09e 1006 GA AZL5 µC Modbus PC Max 3 m COM2 COM1 External interface incl galvanic separation Changeover via AZL5 menu Modbus Depending on transmission path interface line and environmental conditions Figure 66 Ports of the AZL5 The AZL5 menu O...

Page 134: ...ir ratio control system Parameterization of the LMV5 Trend recording write function Printout functions for documenting the plant settings Program update of the AZL5 For the standard operating functions the following transmission parameters have been set 19 200 bit s 8 data bits No parity 1 stop bit During the program update of the AZL5 the transmission rate between PC software and AZL5 is automati...

Page 135: ... The transmission mode used is Remote Terminal Unit For detailed information refer to the document Modbus AZL5 A7550 Standardized interfacing software is available on request Example Interconnection of Siemens Simatic S7 and LMV5 Figure 67 Connection to superposed systems Boiler sequence control max 8 boilers Boiler sequence control with predefined setpoints On the AZL5 menu Params Display SystemC...

Page 136: ...1200 and LMV5 SIMATIC Panel KP KTP TP MODBUS RS 232 P2P CAN bus ACS450 PC tool 7550z33e 0113 Figure 68 Connection for LMV5 to SIMATIC S7 1200 via Modbus 7550z34e 0113 Figure 69 Connection for several LMV5s to SIMATIC S7 1200 via common Modbus 7550 7550z35e 0113 Figure 70 Connection for several LMV5s to SIMATIC S7 1200 via separate Modbus connections ...

Page 137: ... for LMV5 to ET 200S via Modbus RS 232 RS 485 MODBUS RTU RS 485 P2 multi P Field installation Modbus RTU 7550z39e 0113 Figure 72 Connection for several LMV5s to ET 200S via common Modbus Brenner management system LMV5 MODBUS RTU P2P Field installation Profinet Profibus MODBUS series connection RS 232 P2P RS 232 max 5 m RS 232 max 5 m RS 232 max 5 m 7550z40e 0113 Figure 73 Connection for several LM...

Page 138: ...set 100 e g value 200 means 10 0 4 Position of fuel actuator word with offset 100 5 Position of auxiliary actuator1 word with offset 100 6 Position of auxiliary actuator2 word with offset 100 7 Position of auxiliary actuator3 word with offset 100 8 VSD speed word with offset 100 e g value 600 means 50 0 9 O2 actual value word e g value means 20 0 10 Actual value word e g value 1000 means 100 0 11 ...

Page 139: ...Start counter Number of lockouts Burner ID Selection of operating mode Set load Autom Manual Off Burner control Times Flame detector test Configuration Valve proving System ID BC SW version e bus Address Date format Times Language Physical units e bus Sendcycle BU Display Contrast System ID AZL SW version Passwords Burner ID Parameter backup Load SW from PC Submenu selection Ratio control Gas sett...

Page 140: ...display can be switched to Normal operation by simultaneously pressing the select buttons and or the Info button Normal operation undisturbed no manual entries H O M E R U N P h a s e 1 0 L M V 5 x H o m e R u n 1 0 S t a r t N o 1 2 3 4 5 6 F 0 5 1 A 0 2 4 0 4 3 S T A N D B Y P h a s e 1 2 S e t p o i n t 1 2 5 C A c t V a l u e 1 2 4 C F u e l O i l S t a n d b y 1 2 S T A R T U P I P h a s e s ...

Page 141: ... e l R e l e a s e 2 5 0 F l a m e 8 0 F 3 2 1 L 4 2 3 2 2 3 STARTUP IX Phase 54 D r i v i n g t o L o w f i r e 5 4 F 2 8 5 L 3 8 3 1 8 5 OPERATION I Phase 60 S e t p o i n t 1 2 5 C A c t V a l u e 1 2 4 C L o a d 5 7 5 F l a m e 1 0 0 OPERATION II Phase 62 S h u t d o w n L o w f i r e 6 2 F 2 8 5 L 1 7 6 1 2 5 S H U T D O W N Phase 70 S h u t d o w n 7 0 F 2 8 5 L 1 7 6 1 2 5 S H U T D O W N P...

Page 142: ...1 7 6 1 2 5 S H U T D O W N P h a s e 7 9 T e s t A i r P r e s s S w i t c h 7 9 F 2 8 5 L 1 7 6 1 2 5 V A L V E P R O V I N G P h a s e s 8 0 8 3 V a l v e P r o v i n g 8 0 E v a c u a t i n g V a l v e P r o v i n g 8 1 T e s t a t m o s P r e s s V a l v e P r o v i n g 8 2 F i l l i n g V a l v e P r o v i n g 8 3 T e s t G a s P r e s s Display normal operation cont d ...

Page 143: ...ating cycle is interrupted Example Lockout due to a gas pressure signal in connection with gas valve proving 1 1 8 0 6 9 9 1 0 3 5 C 3 1 D 0 0 P 8 1 S t a r t N o 1 2 3 4 5 6 L o a d 2 5 0 G a s G a s P r e s s u r e V a l v e P r o v i n g V a l v e o n G a s S i d e l e a k i n g C error code D diagnostics P phase DK gas valve proving Example Display of errors in the error history In contrast to...

Page 144: ...fety shutdowns In the event of safety shutdown the display alternates at 5 second intervals S a f e t y S h u t d o w n G a s P r e s s u r e h a s d r o p p e d b e l o w m i n i m u m L i m i t Example Immediate display of warnings In the event of warnings the display alternates at 5 second intervals W a r n i n g S l o p e t o o s t e e p Example Immediate display of start preventions In the ev...

Page 145: ...e Select buttons within the 4 menu items shown on the display the selection scrolls If some other presently not shown menu item shall be selected the menu display scrolls Press Enter to make the final selection This calling up and selection procedure is similar on all other menu levels Example O p e r a t i o n M a n u a l O p e r a t i o n P a r a m s D i s p l a y U p d a t i n g Changing the st...

Page 146: ...nter jumps to the first position of the password entry line Now through incrementing or decrementing a character digit or letter can be selected A character is confirmed by pressing Enter If a wrong entry has been made the last character can be edited again by pressing Esc The other password positions can be selected edited and entered in a similar way Hence when making an entry only 1 character i...

Page 147: ... i o C o n t r o l L o a d C o n t r o l l e r A Z L Example Calling up and selecting submenu Times T i m e s C o n f i g u r a t i o n V a l v e P r o v i n g L o s s F l a m e T e s t Example Calling up and selecting submenu TimesStartupx T i m e S t a r t u p 1 T i m e S t a r t u p 2 T i m e s S h u t d o w n T i m e s G e n e r a l First submenu level Second submenu level Third submenu level ...

Page 148: ...e colon on line New Here the required new value can be entered whereby the AZL5 automatically displays the 4 possible line setting ranges with the associated resolutions 0 12 6 s resolution 0 2 s 13 63 s resolution 1 s 70 630 s resolution 10 s 11 63 min resolution 1 min P r e p u r g e T m e G a s C u r r 1 2 6 s N e w 1 2 6 s Setting the new value P r e p u r g e T m e G a s C u r r 1 2 6 s N e w...

Page 149: ...prompted to press the button on the actuator to be addressed The AZL5 confirms successful address assignment To be sure the address of the actuator can be checked against the blink code which now appears This procedure can be repeated for other actuators used by the system but the AZL5 does not allow double assignments In that case a display tells you that an appropriate actuator is already used b...

Page 150: ...ssing address via the blinking signal of the LED The blink interval is 200 ms After each blink cycle there is a pause of 1 2 seconds Example of an actuator for gas Time OFF ON Figure 77 Addressing completed This facility makes it possible to reset an addressed actuator in the case of a replacement repair or if addressing is wrong wrong address assignment by the user For that purpose you need to pr...

Page 151: ...ePositions 3 through 5 leads to standard parameterizations of the specified parameters Selection of 2 leads to S e l e c t i o n m e n u C u r v e P a r a m m o d u l a t i n g P o i n t L o a d 2 3 2 1 F u e l 2 3 2 M a n A i r 4 1 6 A u x 3 3 3 I A u x 2 2 9 2 only LMV52 I A u x 3 1 3 8 LMV50 LMV51 3 LMV52 I V S D 4 5 0 LMV50 LMV51 3 LMV52 In this example the ignition positions are copied to the...

Page 152: ...e procedure is shown in graphic form When accessing this menu the pointer is positioned on Point To edit the curvepoint the pointer must be positioned on Point Pointer positioned on Point P o i n t L o a d 2 3 5 F u e l 2 3 2 M a n A i r 4 1 6 A u x 3 3 3 Continue by pressing Enter P o i n t L o a d 2 3 5 3 F u e l 2 3 2 O 2 A i r 4 1 6 4 5 A u x 3 3 3 After selecting the curvepoint number the ass...

Page 153: ...of readjustment is based on estimation This means that there is no proof yet that all curvepoints are correctly set from the combustion point of view This must be ensured using adequate measuring equipment Continue by pressing Enter P o i n t L o a d 2 3 5 3 F u e l 2 3 2 O 2 A i r 4 1 6 4 5 A u x 3 3 3 It is to be noted that with these settings which can be made in standby and normal operation th...

Page 154: ... ramp speed Press Enter to save the changed values Now other parameters for change can be selected If Esc is pressed before Enter changes made to the selected parameter e g Fuel position are rejected and the value saved last is restored When leaving this level by pressing Esc the following query appears P o i n t S t o r e E N T E R C a n c e l E S C Enter saves the changes or the new point and ad...

Page 155: ...6 4 5 A u x 3 3 3 The respective point SP is selected by calling up the curvepoint number The data associated with the point number are always displayed in the column on the right see above For canceling the parameter data Select the required curvepoint then continue by pressing Enter P o i n t P o i n t 3 c h a n g e M a n d e l e t e Here the pointer position can vary between change and delete T...

Page 156: ... 110A200 and a QGO20 are connected to the system Traveling to the output preset here can be stopped by pressing Esc The actual curve settings are made by adjusting the entire fuel air ratio control system based on the roughly predefined curvepoints and outside the defined points After pressing Enter again new points can be introduced at the required positions Then the values can be changed P o i n...

Page 157: ...m continues the startup sequence and assumes normal operation The first curvepoint entered are the ignition positions and the load entered is the number of degrees angular rotation of the fuel actuator 100 90 7550d07e 0704 Pos Load 0 0 AUX FUEL AIR Ignition low fire Figure 78 Adjustment of the actuator positions via the load with automatically entered point Select Man from menu Params Display Rati...

Page 158: ...an be set via menu Special positions Then set Program Stop to deactivated The system continues the shutdown sequence and stops in phase Standby 12 Selection menu setting oil Only the data associated with the currently active type of fuel can be parameterized S p e c i a l P o s i t i o n s 1 C u r v e P a r a m s 2 L o a d L i m i t s 3 A u x A c t u a t o r 4 Selection of 1 HomePos PrepurgePositi...

Page 159: ...not followed The display is maintained while the settings are made When accessing the menu the operating positions Stage 1 appear By pressing the Selection buttons the entered positions of all switching and operating points can be viewed This has no impact on the system even if followed was selected If followed is selected parameterization is made as follows P o i n t I A i r 2 8 5 B S 1 I A u x 1...

Page 160: ... on only when at least the switch on point is definitely used XXXX Selected point Response Remark Operating point stage 1 Approach of stage 1 Fine adjustment of stage 1 Switch on point stage 2 Approach of stage 1 Adjustment of stage 1 off Switch off point stage 2 Adjustment of stages 1 and 2 off Operating point stage 2 Approach of stage 2 Fine adjustment of stage 2 Switch on point stage 3 Approach...

Page 161: ...art Adaption Adaption is activated by pressing Enter S t a r t A d a p t i o n w i t h E N T E R 6 0 S e t p o i n t 7 0 0 C A c t V a l 6 0 0 C Adaption starts after pressing Enter whereupon the following text appears A d a p t i o n a c t i v e L o a d 5 2 0 A c t V a l 6 0 0 C C a n c e l w i t h E S C Depending on the adaption step the following displays appear alternating with the display sho...

Page 162: ...p t i o n o k I P a r t T n 4 0 0 s C o n t i n u e w i t h A d a p t i o n o k D P a r t T v 3 5 s C o n t i n u e w i t h A d a p t i o n o k D e l a y T i m e T u 1 0 s C o n t i n u e w i t h 3 Canceling the adaption If the load controller was not able to select a suitable loop it stops the adaption and displays the following text If an adaption in progress is manually canceled by pressing Esc...

Page 163: ...the LMV5 and the AZL5 of 1 plant burner IDs are identical and between an AZL5 and a new LMV5 burner ID as supplied by Siemens Data transmission between the AZL5 and LMV5 of different plants burner IDs not identical is not possible no cloning From software version V05 00 of the AZL52 the restoring of backup data from LMV5 devices with a larger scope of functions and with more parameters into LMV5 d...

Page 164: ...otection If the AZL5 uses the associated interface to communicate with a BACS the latter can act as the clock master by cyclically transmitting a preset time of day and date to the AZL5 This information is given priority over all other time of day date sources 8 3 11 Adjustment of contrast shut off quick access In normal operation of the AZL5 the contrast of the display can be adjusted To do this ...

Page 165: ...ith the AZL5 via SafetyCheckFunct SLT Test The burner is switched on and the load automatically set to the following adjustable level Here it is possible to set the load level that shall be approached in modulating operation Parameter SLT TestloadMod Here it is possible to set the load stage that shall be approached in multistage operation Parameter SLT TestloadStg S1 S2 S3 After safety shutdown t...

Page 166: ...figuration Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Updating BurnerID Burner identification E g OEM13 10 02 003 name of OEM burner manufacturer date 13 10 2002 production number 003 minimum 4 characters Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display BurnerControl Configuration ConfigGeneral FuelTrainGas FuelTrainOil...

Page 167: ...at the last CAN bus element must be plugged in Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display Actuators Addressing 1 AirActuator 2 GasActuat Oil 3 OilActuator 4 AuxActuator 5 AuxActuator2 6 AuxActuator3 For addressing an actuator select the respective type of actuator 1 Air actuator 2 Gas actuator for dual fuel burners with only 1 fuel actuator 3 Oil a...

Page 168: ...or2 6 AuxActuator3 Select the direction of rotation with standard or Reversed The standard direction of rotation is counterclockwise when facing the end of the drive shaft AZL5 Ι Note To check the direction of rotation every actuator can be rotated when in the home position see item 11 After setting the curves for the ignition position the direction of rotation can only be changed after deleting t...

Page 169: ...or OilSettings AirActuator AuxActuator OilActuator The actuators can be activated and deactivated in accordance with the application and the type of fuel Here it is also defined whether the relevant actuator is used for regulating the air volume The definition of air regulating actuators is required for applications employing VSD and O2 trim control Menu level 1 Menu level 2 Menu level 3 Menu leve...

Page 170: ...VSD refer to chapter Configuring the current interface If the internal load controller of the LMV5 is used a temperature or pressure sensor must be connected to input 1 2 or 4 Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display LoadController Configuration SensorSelect MeasureRange PtNi Ext Input X61 U I MRange TempSens MeasureRange PressSens Ext MinSetpoin...

Page 171: ...s and PostpurgePos These positions should be checked and adapted if required either now or during the following program stops The ignition positions are not predefined In this section a valid setting must be made or otherwise burner startup is not possible Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display RatioControl GasSettings SpecialPositions Ignition...

Page 172: ...e 36 The burner control continues the startup sequence until the ignition position phase 36 is reached Then it stops again enabling the actuator s ignition positions to be set Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display RatioControl GasSettings SpecialPositions IgnitionPos IgnitionPosGas IgnitionPosAir IgnitionPosAux1 IgnitionPosAux2 Only LMV52 Igni...

Page 173: ...utput kW Example 2 000 kW burner 100 curve point 2 000 kW 200 m h natural gas 75 curve point 1 500 kW 150 m h natural gas 50 curve point 1 000 kW 100 m h natural gas This can be achieved by measuring the amount of fuel with a fuel meter when setting for example Press Esc to leave the curvepoint setting Store the curvepoint by pressing Enter Now select the second curvepoint The settings of the prev...

Page 174: ...osition Gas actuator position Air actuator position Auxiliary actuator 7550d26E 0502 Figure 81 Fuel air ratio control The curvepoints can be changed either during burner off periods phase 12 or during burner operation phase 60 To change an existing curve select the curvepoint in Point mode You are now able to change the point or to cancel it Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu...

Page 175: ... selected to optimize the position To leave the curvepoint setting press the Esc button or store the point by pressing Enter Finally you can limit the burner output to a minimum and maximum in accordance with the boiler s requirements Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display RatioControl GasSettings LoadLimits MinLoadGas MaxLoadGas Select Autom M...

Page 176: ...nu level 5 Menu level 6 Params Display RatioControl OilSettings CurveParams Operation Mode Activate the program stop if startup shall be interrupted to continue setting the special positions Prepurge Phases 24 34 Ignition position Phase 36 Interval 1 Phase 44 Interval 2 Phase 52 Postpurge Phases 72 78 Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display Rati...

Page 177: ...t To start the burner select Autom Manual Off and then Manual Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 ManualOperation Autom Manual Off If startup shall be watched the display can be changed to Normal operation by pressing simultaneously selection buttons and The burner control stops startup in the prepurge phase phase 24 enabling the positions of the actuators...

Page 178: ...gs SpecialPositions IgnitionPos IgnitionPosOil IgnitionPosAir IgnitionPosAux1 IgnitionPosAux2 Only LMV52 IgnitionPosAux3 IgnitionPosVSD LMV50 LMV51 3 LMV52 To repeatedly verify the ignition positions the control sequence can be stopped in interval phase 44 or 52 interval with ignited flame on completion of the respective safety time When the program stop is deactivated the burner proceeds with its...

Page 179: ... Settings Actuator Positions followed not followed Not a parameter name but a term of curve parameterization It is recommended to use the function Actuator positions followed to set all switching points and operating points Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display RatioControl OilSettings CurveParams Curve Settings Actuator Positions followed not...

Page 180: ... ratio multistage operation Position 7550d27en 0715 70 60 50 40 30 20 10 0 70 100 Air actuator positions down Auxiliary actuator positions down Air actuator positions up Auxiliary actuator positions up S1 S2 OFF S2 ON S2 S3 OFF S3 ON S3 Load Figure 82 Fuel air ratio control multistage operation Select Autom Manual Off and then Burner off Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu lev...

Page 181: ... 0202 ACT PS max PS min PS VP Figure 83 Extra functions of the LMV5 Determination of the test time with predefined leakage rate to be detected during valve proving PG Pw V 3600 t Test Patm Q Leck Determination of the detected leakage rate during valve proving PG Pw V 3600 Q Leck Patm t Test QLeck in l h Leakage rate in liters per hour PG in mbar Overpressure between the valves at the beginning of ...

Page 182: ...ar V 3 l QLeck 50 l h 30 15 mbar 3 l 3600 s h t Test 3 2 s 1013 mbar 50 l h Result The test time to be set is 4 seconds PG 30 mbar PW 15 mbar Patm 1013 mbar V 3 l tTest 4 s 30 15 mbar 3 l 3600 s h Q Leck 40 0 l h 1013 mbar 4 s Result The detected leakage rate is 40 l h Example 1 calculation of test time Example 2 determination of detectable leakage rate ...

Page 183: ... Bus Int LC X62 Ext LC X62 Ext LC Bus Or alternatively Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display LoadController Configuration LC_OptgMode ExtLC X5 03 Int LC Int LC Bus Int LC X62 Ext LC X62 Ext LC Bus After the internal load controller has been activated the sensor input must be selected and configured Menu level 1 Menu level 2 Menu level 3 Menu l...

Page 184: ...ssioning instructions for the LMV5 22 05 2018 Then the temperature measuring range must be defined Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display LoadController Configuration MeasureRange PtNi 150 C 302 F 400 C 752 F 850 C 1562 F ...

Page 185: ...ternatively the PID parameters can be directly selected and set within the predefined value range Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display LoadController ControllerParam ContrlParamList StandardParam Adaption very fast fast normal slow very slow Or P Part Xp I_Part Tn D Part Tv With the method of adapting the control parameters the characteristic...

Page 186: ...l 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display LoadController TempLimiter TL_Thresh_Off TL_SD_On Or SystemConfig TempLimiter TL_Thresh_Off TL_SD_On 2 boiler setpoints can be adjusted which however must not lie above the actual limit value of the temperature limiter function Setpoints Changeover from setpoint W1 to setpoint W2 is implemented by means of an external potential...

Page 187: ...ng points are calculated in relation to the current setpoint Example Setpoint 70 C SD_ModOn 5 3 5 K SD_ModOff 10 7 K Controller loop open Off 70 3 5 73 5 C Controller loop closed On 70 7 63 C Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display LoadController ControllerParam SD_ModOn SD_ModOff Setpoint Actual value 7550f07E 0502 R ON Y OPEN Y CLOSED W SD_Mod...

Page 188: ...ntrol operation started Modulating burner with pressure control For the output step any output value in can be predefined 100 divided by the output step gives the number of possible steps Parameters Shock protection on off ColdStartOn Activated Shock protection activation level ThresholdOn 40 of setpoint Output step only for modulating operation StageLoad 15 of burner output Setpoint step modulati...

Page 189: ... Commissioning instructions for the LMV5 22 05 2018 Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params Display LoadController ColdStart ColdStartOn ThresholdOn StageLoad StageStep_Mod StageStep_Stage MaxTmeMod MaxTmeStage ThresholdOff ...

Page 190: ... Basic Documentation LMV5 CC1P7550en 10 Connection terminals coding of connectors 22 05 2018 10Connection terminals coding of connectors 10 1 Connection terminals LMV51 040x1 7550z43 1114 Figure 86 Connection terminals LMV51 040x1 ...

Page 191: ...asic Documentation LMV5 CC1P7550en 10 Connection terminals coding of connectors 22 05 2018 10 2 Connection terminals LMV51 000x1 LMV51 000x2 LMV51 040x2 7550z44 1114 Figure 87 Connection terminals LMV51 000x1 LMV51 000x2 LMV51 040x2 ...

Page 192: ... Building Technologies Basic Documentation LMV5 CC1P7550en 10 Connection terminals coding of connectors 22 05 2018 10 3 Connection terminals LMV51 140x1 7550z45 1114 Figure 88 Connection terminals LMV51 140x1 ...

Page 193: ...asic Documentation LMV5 CC1P7550en 10 Connection terminals coding of connectors 22 05 2018 10 4 Connection terminals LMV51 100x1 LMV51 100x2 LMV51 140x2 7550z46 1114 Figure 89 Connection terminals LMV51 100x1 LMV51 100x2 LMV51 140x2 ...

Page 194: ... terminals coding of connectors 22 05 2018 10 5 Connection terminals LMV51 300x1 LMV51 300x2 LMV52 200x1 LMV52 200x2 LMV52 240x2 LMV52 400x1 LMV52 400x2 7550z47 0514 Figure 90 Connection terminals LMV51 300x1 LMV51 300x2 LMV52 200x1 LMV52 200x2 LMV52 240x2 LMV52 400x1 LMV52 400X2 ...

Page 195: ...tation LMV5 CC1P7550en 10 Connection terminals coding of connectors 22 05 2018 10 6 Connection terminals LMV51 340x1 LMV52 240x1 LMV52 440x1 LMV52 440x2 7550z48 0514 Figure 91 Connection terminals LMV51 340x1 LMV52 240x1 LMV52 440x1 LMV52 440X2 ...

Page 196: ...196 327 Building Technologies Basic Documentation LMV5 CC1P7550en 10 Connection terminals coding of connectors 22 05 2018 10 7 Coding of connectors Figure 92 Coding of connectors ...

Page 197: ...irect start 1 X6 02 Magnetic clutch oil pump 1 X6 03 Fuel valve oil shutoff valve 1 X7 01 Fuel valve 2 oil 1 X7 02 Fuel valve 3 oil 1 X7 03 Not used 1 X8 01 Firing on gas oil 1 X8 02 Fuel valve 1 oil 1 X8 03 Fuel valve 1 oil 1 X9 01 Gas valves 1 X9 02 Protective earth neutral conductor 1 X9 03 Gas pressure switch min max valve proving or valve closure contacts 1 X10 01 Power transformer prim I sec...

Page 198: ...nnectors 22 05 2018 Extension connector set LMV5 LMV5 Terminal marking Description RAST3 5 2 Actuator 5 pins VSD 2 4 pin connector 2 x 1 5 pin connector 1 x 1 6 pin connector 1 x RAST5 Transformer 1 prim I Power supply 1 sec II AC12 V 1 AC 12 V 2 1 X10 02 pin 1 Photoresistive flame detector QRB AGG5 721 ...

Page 199: ...x 5 A X3 04 PIN 1 I Safety loop AC 120 V 10 15 50 60 Hz Imax 5 A PIN 2 Power signal for safety loop AC 120 V 10 15 50 60 Hz Imax 5 A PIN 3 Protective earth PE PIN 4 Power supply neutral conductor N PIN 5 Power supply live conductor L AC 120 V 10 15 50 60 Hz fuse 6 3 AT DIN EN 60127 2 5 X4 01 I Fuel selection internal if pin 1 2 is not used PIN 1 Fuel selection gas AC 120 V 10 15 50 60 Hz Imax 1 5 ...

Page 200: ...max 500 mA X5 03 PIN 1 I Controller ON OFF AC 120 V 10 15 50 60 Hz Imax 1 5 mA PIN 2 Controller closes stage 3 AC 120 V 10 15 50 60 Hz Imax 1 5 mA PIN 3 Controller opens stage 2 AC 120 V 10 15 50 60 Hz Imax 1 5 mA PIN 4 Power signal for control of controller AC 120 V 10 15 50 60 Hz Imax 500 mA X6 01 PIN 1 I Start release oil AC 120 V 10 15 50 60 Hz Imax 1 5 mA PIN 2 Power signal start release oil ...

Page 201: ...ions Electrical rating X7 01 PIN 1 I Protective earth PE PIN 2 Neutral conductor N PIN 3 Fuel valve 2 oil AC 120 V 10 15 50 60 Hz 1 6 A pilot duty cosι 0 4 X7 02 PIN 1 I Protective earth PE PIN 2 Neutral conductor N PIN 3 Fuel valve 3 oil AC 120 V 10 15 50 60 Hz 1 6 A pilot duty cosι 0 4 X7 03 PIN 1 I Protective earth PE PIN 2 Start release gas oil CPI AC 120 V 10 15 50 60 Hz Imax 1 5 mA PIN 3 Pow...

Page 202: ... point for in series switched valves PIN 1 Fuel valve 1 oil AC 120 V 10 15 50 60 Hz 1 6 A pilot duty cosι 0 4 X9 01 PIN 4 I Fuel valve 1 gas AC 120 V 10 15 50 60 Hz 1 6 A pilot duty cosι 0 4 PIN 3 Fuel valve 2 gas AC 120 V 10 15 50 60 Hz 1 6 A pilot duty cosι 0 4 PIN 2 Pilot valve gas AC 120 V 10 15 50 60 Hz 1 6 A pilot duty cosι 0 4 PIN 1 Fuel valve shut off valve gas AC 120 V 10 15 50 60 Hz 1 6 ...

Page 203: ... 1 mA PIN 3 Power signal transformer PIN 2 AC power signal G0 AC 12 V 10 15 50 60 Hz Max 1 2 mA PIN 1 AC power signal fan G X10 02 PIN 6 I QRI IR detector QRA7 signal voltage Umax DC 5 V PIN 5 Protective earth PE PIN 4 Neutral conductor N PIN 3 Power signal AC 120 V 10 15 50 60 Hz Imax 500 mA PIN 2 QRI IR detector QRA7 power supply DC 14 21 VC Imax 100 mA PIN 1 QRB signal voltage Max DC 8 V X10 03...

Page 204: ...ly for actuators display and operating unit AZL5 AC 12 V 10 15 50 60 Hz Fuse max 4 A PIN 2 PIN 1 Shield connection functional earth X51 PIN 6 III Reference ground PELV PIN 5 Communication signal CANL DC U 5 V Rw 120 ς level to ISO DIS 11898 PIN 4 Communication signal CANH PIN 3 AC power supply for actuators display and operating unit AZL5 AC 12 V 10 15 50 60 Hz Fuse max 4 A PIN 2 PIN 1 Shield conn...

Page 205: ...ction PIN 4 Reference ground PIN 3 Current input for temperature pressure signal input 2 TEMP PRESS INPUT 4 20 mA DC 0 20 mA PIN 2 Voltage input for temperature pressure signal input 2 TEMP PRESS INPUT DC 0 10 V DC 0 10 V PIN 1 Power supply for temperature pressure transmitter Approx DC 20 V Max 25 mA X62 PIN 5 III Functional earth for shield connection PIN 4 Reference ground PIN 3 Current input f...

Page 206: ...0 Hz Imax 5 A X3 04 PIN 1 I Safety loop AC 230 V 10 15 50 60 Hz Imax 5 A PIN 2 Power signal for safety loop AC 230 V 10 15 50 60 Hz Imax 5 A PIN 3 Protective earth PE PIN 4 Power supply neutral conductor N PIN 5 Power supply live conductor L AC 230 V 10 15 50 60 Hz fuse 6 3 AT DIN EN 60127 2 5 X4 01 I Fuel selection internal if pin 1 2 is not used PIN 1 Fuel selection gas AC 230 V 10 15 50 60 Hz I...

Page 207: ...60 Hz Imax 500 mA X5 03 PIN 1 I Controller ON OFF AC 230 V 10 15 50 60 Hz Imax 1 5 mA PIN 2 Controller closes stage 3 AC 230 V 10 15 50 60 Hz Imax 1 5 mA PIN 3 Controller opens stage 2 AC 230 V 10 15 50 60 Hz Imax 1 5 mA PIN 4 Power signal for control of controller AC 230 V 10 15 50 60 Hz Imax 500 mA X6 01 PIN 1 I Start release oil START AC 230 V 10 15 50 60 Hz Imax 1 5 mA PIN 2 Power signal start...

Page 208: ...tions Electrical rating X7 01 PIN 1 I Protective earth PE PIN 2 Neutral conductor N PIN 3 Fuel valve 2 oil AC 230 V 10 15 50 60 Hz 1 A cosι 0 4 X7 02 PIN 1 I Protective earth PE PIN 2 Neutral conductor N PIN 3 Fuel valve 3 oil AC 230 V 10 15 50 60 Hz 1 A cosι 0 4 X7 03 PIN 1 I Protective earth PE PIN 2 Start release gas oil or valve closure contact CPI AC 230 V 10 15 50 60 Hz Imax 1 5 mA PIN 3 Pow...

Page 209: ...al conductor N PIN 2 Wiring point for in series switched valves PIN 1 Fuel valve 1 oil AC 230 V 10 15 50 60 Hz 1 A cosι 0 4 X9 01 PIN 4 I Fuel valve 1 gas AC 230 V 10 15 50 60 Hz 2 A cosι 0 4 PIN 3 Fuel valve 2 gas AC 230 V 10 15 50 60 Hz 2 A cosι 0 4 PIN 2 Pilot valve gas AC 230 V 10 15 50 60 Hz 2 A cosι 0 4 PIN 1 Fuel valve shut off valve gas AC 230 V 10 15 50 60 Hz 2 A cosι 0 4 X9 02 PIN 2 I Pr...

Page 210: ... 1 mA PIN 3 Power signal transformer PIN 2 AC power signal G0 AC 12 V 10 15 50 60 Hz Max 1 2 mA PIN 1 AC power signal fan G X10 02 PIN 6 I QRI IR detector QRA7 signal voltage Umax DC 5 V PIN 5 Protective earth PE PIN 4 Neutral conductor N PIN 3 Power signal AC 230 V 10 15 50 60 Hz Imax 500 mA PIN 2 QRI IR detector QRA7 power supply DC 14 21 VC Imax 100 mA PIN 1 QRB signal voltage Max DC 8 V X10 03...

Page 211: ...ly for actuators display and operating unit AZL5 AC 12 V 10 15 50 60 Hz Fuse max 4 A PIN 2 PIN 1 Shield connection functional earth X51 PIN 6 III Reference ground PELV PIN 5 Communication signal CANL DC U 5 V Rw 120 ς level to ISO DIS 11898 PIN 4 Communication signal CANH PIN 3 AC power supply for actuators display and operating unit AZL5 AC 12 V 10 15 50 60 Hz Fuse max 4 A PIN 2 PIN 1 Shield conn...

Page 212: ... earth for shield connection PIN 4 Reference ground PIN 3 Current input for temperature pressure signal input 2 TEMP PRESS INPUT 4 20 mA DC 0 20 mA PIN 2 Voltage input for temperature pressure signal input 2 TEMP PRESS INPUT DC 0 10 V DC 0 10 V PIN 1 Power supply for temperature pressure transmitter Approx DC 20 V Max 25 mA X62 PIN 5 III Functional earth for shield connection PIN 4 Reference groun...

Page 213: ...er in a suitable location Only the AGG5 2XX transformers specified by Siemens may be used The entire RAST5 connection area does not feature functional low voltage The RAST3 5 connection area on the unit s small side offers functional low voltage When making the wiring the functional low voltage section must be strictly separated from the other sections to ensure protection against electric shock A...

Page 214: ...ces The second power transformer is operated as shown in example 2 In principle the bus topology must always have a line structure and therefore must have a start and an end node The individual bus users must be connected in series whereby the respective end nodes are to be terminated by bus terminating resistors The LMV5 is a component of the communication line and to be looped in between the AZL...

Page 215: ... 1 AGG5 2xx AC1 12 V LMV5 Basic unit F1 T6 3 F3 T4 Max Bus cable length LMV5 AZL51 80 m AGG5 631 Sub D connector AZL5 AC1 12 V AC2 12 V CANL CANH AC2 12 V X3 04 Fixed internal bus connection Max Bus cable length LMV5 SQM4 20 m AGG5 641 SA 4 SQM4 SA 3 SQM4 SA 2 SQM4 SA 1 SQM4 AC1 12 V AC2 12 V CANL CANH F2 T4 12 V 0 V 0 V 12 V 230 V 12 V 0 V Figure 94 Installation of all components in the burner CA...

Page 216: ... Β Notes on example 2 Total length of CAN bus cable 100 m Whenever the distance between the LMV5 and the last actuator exceeds 20 m or if more than 4 SQM45 are used on the burner see chapter Determination of maximum CAN cable length AGG5 6 a second transformer is required for powering the actuators In that case transformer 1 powers the LMV5 and the AZL5 control panel Transformer 2 powers the actua...

Page 217: ...0 V 12 V Figure 96 Installation of all components in the burner CAN bus cable LMV52 last actuator 20 m with 6 actuators and PLL52 Installation in the control panel actuator on the burner and on the boiler CAN bus cable LMV52 last actuator 25 m with 4 actuators and PLL52 RAST3 5 Transformer X52 Power transformer 1 AGG5 2xx AC1 12 V LMV52 basic unit F1 T6 3 F3 T4 Max bus cable length LMV5 AZL51 60 m...

Page 218: ...by a second transformer to be located near the actuators and the PLL52 The supply voltage of this transformer is connected in Example 3a on the actuator 6 SA6 and in Example 3b on PLL52 lines AC1 AC2 M and connected from there via the bus cable AGG5 641 to the next component The fuses for transformer 1 are accommodated in the LMV52 Optionally the supply voltage can also be delivered via a conduit ...

Page 219: ...wer transformer 2 AGG5 2xx 12 V 0 V 0 V 12 V 230 V 12 V 0 V Figure 99 Installation of all components in the burner CAN bus cable LMV52 last actuator 20 m with 4 actuators and PLL52 13 1 2 Determination of the maximum cable length AGG5 6 The maximum cable length between transformer and CAN bus users depends on the type of cable cross sectional area the number of actuators and the type of actuator c...

Page 220: ...3 Figure 100 AGG5 641 Connection Color Cross sectional area in mm 12 VAC 1 White 1 25 12 VAC 2 Brown 1 25 CANH Yellow 0 25 CANL Green 0 25 GND Black 0 5 AGG5 631 cable type 2 LMV5 AZL5 Shield Silver grey 7550z02e 0613 Figure 101 AGG5 631 Connection Color Cross sectional area in mm 12 VAC 1 White 0 5 12 VAC 2 Brown 0 5 CANH Yellow 0 25 CANL Green 0 25 GND Black 0 5 Types of cable ...

Page 221: ...ection area in for AC1 and AC2 7550d13e 1012 Figure 102 CAN bus connection between transformer and actuator group Example System cable AGG5 641 1 25 mm cross sectional area Actuators 2 x SQM45 The point of intersection of the vertical line for the AGG5 641 1 25 mm2 and curve 2 x SQM45 gives a maximum cable length of 33 4 m between the transformer and the group of actuators Β Note For additional co...

Page 222: ...1 x SQM91 12 13 11 12 13 Maximum cable length in mm Cross section area in for AC1 and AC2 7550d48e 1112 Figure 103 CAN bus connection between transformer and group of actuators Β Note For additional connection of a PLL52 the maximum permissible cable length is reduced by 2 m AGG5 631 AGG5 631 cable type 2 1 1 x AZL5 2 1 x AZL5 1 x SQM45 Maximum cable length in m Cross section area in for AC1 and A...

Page 223: ...x AZL52 1 x PLL52 can be operated with just one AGG5 2 power transformer If additional components are connected to this group or to one of the other groups listed in the table above it will be necessary to divide the components into 2 groups and to incorporate a second power transformer as well as the respective external fuses refer to the corresponding note in the chapter Power supply for the LMV...

Page 224: ...ter connection AZL52 to PC for using the ACS450 PC software Horter Kalb Online Shop www horter de shop index html 13 2 4Mechanical coupling The mechanical coupling enables a force fit and positive fit connection between our SQM actuator and the Fluidics oil controller xx VK The flexible structure of the coupling means that an axial or radial offset can be compensated Fluidics Instruments specialis...

Page 225: ...efer to Data Sheet N7714 Flame detectors QRI refer to Data Sheet N7719 Actuators SQM4 refer to Data Sheet N7814 Actuators SQM9 refer to Data Sheet N7818 Operating and display unit AZL5 refer to User Documentation A7550 Transformer AGG5 refer to Basic Documentation P7550 CAN bus connecting cable AGG5 63 refer to Basic Documentation P7550 Accessory set AGG5 310 for acquiring the fan speed refer to B...

Page 226: ...nt application standards e g EN 298 EN 676 EN 267 etc or whether the respective plant must be approved on an individual basis The following parameters are of particular importance The setting values curve parameters for the actuating devices the types of fuel and the combustion air across the burner s load range must be stored in adequate numbers While considering the combustion chamber pressure f...

Page 227: ... signal is achieved by simulating a flickering flame with an artificial light source With the QRA7 extraneous light can be simulated by a lighter or a halogen emitter without UV filter The functions of all available or required input messages must be checked for example Air pressure Minimum gas pressure Maximum gas pressure Gas valve proving or CPI Minimum oil pressure Maximum oil pressure Safety ...

Page 228: ...s a linear progression of the O2 value across the entire load range The second curvepoint must correspond to the low fire position or be set to a lower value The first curvepoint must lie sufficiently below curvepoint 2 at about 50 load so that the curves are defined for reducing the air rate by O2 trim control below the low fire position also The O2 min value represents the switch off threshold o...

Page 229: ...0 W typically Safety class I with parts according to II and III as per DIN EN 60730 1 Degree of protection of housing IP00 in accordance with DIN EN 60529 IP40 in accordance with DIN EN 60529 must be ensured through adequate installation of the LMV5 by the burner or boiler manufacturer Mode of operation Type 2B in accordance with DIN EN 60730 1 Rated impulse voltage Rated impulse voltage in accord...

Page 230: ...ief valve rated voltage Rated current 0 5 A 0 5 A Power factor Cosι 0 4 Cosι 0 4 Status inputs CFN Status inputs with the exception of the safety loop of the contact feedback network CFN are used for system supervision and require a mains related input voltage Input safety loop Refer to Loads on output terminals Input currents and input voltages UeMax UeMin IeMax IeMin UN 10 UN 15 1 5 mA peak 0 7 ...

Page 231: ...e Rated current 1 6 A 2 A Power factor Cos ι 0 2 Cos ι 0 2 Gas valves rated voltage Rated current 1 6 A 2 A Power factor Cos ι 0 4 Cos ι 0 4 Oil valves rated voltage Rated current 1 6 A 1 A Power factor Cos ι 0 4 Cos ι 0 4 Cable lengths Main cable Max 100 m 100 pF m Max 100 m 100 pF m CFN cable Max 100 m 100 pF m Max 100 m 100 pF m Analog cable Max 100 m 100 pF m Max 100 m 100 pF m Flame detector ...

Page 232: ...l conditions The CAN bus cables have been specified by Siemens and can be ordered as accessory items Other types of cables must not be used Otherwise the EMC characteristics of the LMV5 will become unpredictable Main voltage AC 120 V 15 10 AC 230 V 15 10 Fuses in the LMV5 F1 6 3 AT DIN EN 60127 2 5 6 3 AT DIN EN 60127 2 5 F2 4 AT GMD 4A 4 AT DIN EN 60127 2 5 F3 4 AT GMD 4A 4 AT DIN EN 60127 2 5 15...

Page 233: ...Cable jacket resistant to almost all types of mineral oil 15 6 Environmental conditions for all LMV5 components Storage DIN EN 60721 3 1 Climatic conditions Class 1K3 Mechanical conditions Class 1M2 Temperature range 20 60 C Humidity 95 r h Transport DIN EN 60721 3 2 Climatic conditions Class 2K2 Mechanical conditions Class 2M2 Temperature range 20 60 C Humidity 95 r h Operation DIN EN 60721 3 3 C...

Page 234: ...MV5 CC1P7550en 16 Dimensions 22 05 2018 16Dimensions Dimensions in mm 77 68 82 3 8 0 05 17 30 3 17 4 15 7 44 4 46 6 76 19 78 5 54 162 59 5 71 6 19 232 250 252 260 182 200 26 8 34 9 44 4 34 55 17 49 25 23 2 7550m06 0908 Figure 106 Dimensions of LMV5 LMV5 ...

Page 235: ...n 16 Dimensions 22 05 2018 Dimensions in mm Battery compartment 100 16 2 20 5 90 2 26 7 2 5 1 16 1 4 1 3 62 14 22 31 83 96 7 31 1 24 9 30 47 39 5 25 5 19 14 42 5 126 40 0 6 132 135 8 1 Clamping range min 1 mm max 5 mm 7550m05en 1017 Figure 107 Dimensions of AZL5 AZL5 ...

Page 236: ...oil 66 3 77 8 5 3 15 45 102 5 7550m04e 0906 10 20 12 V coil AGG5 210 120 V coil AGG5 220 230 V coil 77 3 22 120 0 5 Figure 108 Dimensions of AGG5 210 AGG5 220 90 5 60 220 69 6 A B 6 5 4 5 4 13 18 4 65 6 27 5 7435m01 0301 Figure 109 Dimension AGQ1 xA27 AGG5 210 AGG5 220 AGQ1 xA27 Type Measure A B AGQ1 2A27 300 220 AGQ1 3A27 1200 350 ...

Page 237: ...ch max Pressure switch min release of startup Release of startup Pressure switch max external Magnetic clutch oil pump Reset Air pressure switch APS Plant ON OFF Ph AC 230 V Inputs Flame signal amplifier CAN bus Info and power supply Fu earth PELV V 3 V 2 V 1 SV or preheater startup with heavy oil Low voltage side trafo PE Air damper Gas damper Oil pressure controller Mixing device Display and ope...

Page 238: ...value Figure 111 Connection of VSD module The auxiliary actuator can be parameterized on the LMV5 depending on the type of fuel The function offers 2 choices Air damper or VSD The Damper act configuration corresponds to the previous function of the LMV51 0 and LMV51 1 Parameter Aux Actuator deactivated activeDamper active VSD AuxActuator3 VSD AuxActuator3 On the LMV52 the VSD option can be selecte...

Page 239: ...riod of time Safety time ratio control the LMV5 is shut down and the message Special position not reached or Speed not reached appears Speed control is active for speeds 8 18 1 1 Inputs outputs MOTOR SPEED INPUT OIL GAS 1 X70 1 X71 FUEL COUNTER INPUT 1 X72 X73 1 FREQUENCY CONVERTER Usensor Pulse IN 0 Reserve FE Usensor Pulse IN 0 FE Usensor Pulse IN 0 FE 12 24VDC Alarm IN 0 4 20mA Setpoint OUT 0 F...

Page 240: ...nputs section Fan contactor contact FCC or FGR pressure switch FGR PS X4 01 The motor s speed can be acquired with different types of sensors To detect the motor s direction of rotation with a sensor a sensor disk with angular steps of 60 120 and 180 is used The sensor disk generates pulse intervals of different length Attention Speed acquisition is safety related We recommend using accessory set ...

Page 241: ...Sensor disk 2 Threaded plate Sensor holder secured with 4 screws M3 x 10 Din 84 4 spring washers M3 Sensor with thread M12 x 1 Nut M12 x 1 wrench size 17 Protective cover of fan motor End of fan motor drive shaft Threaded at the end of drive shaft M8 x 15 Screw wrench size 22 Cup spring Sensor disk Assemply must be made according to Mounting Instruction M7550 7550z06e 1012 Figure 114 Speed sensor ...

Page 242: ... types of fuel meters assignment of the number of pulses and the resulting fuel throughput must be parameterized Type of sensor Inductive sensor to DIN 19234 Namur or open collector pn with UCEsat 4 V UCEmin DC 15 V or Reed contact Frequency 300 Hz Pulses l or gal m3 9999 9999 to be parameterized Pulses ft3 999 99999 to be parameterized Power supply DC 10 V max 15 mA Switching current 10 mA Fuel m...

Page 243: ... be set to 0 Hz To ensure that the fan motor reaches the required speed under all operating conditions the VSD during configuration is controlled with a maximum of only 95 of the positioning signal If the burner s rated capacity calls for full fan speed the maximum output frequency must be set to 105 2 of mains frequency It is recommended to internal control of the internal VSD plus slippage or lo...

Page 244: ...00 speed in situations where environmental conditions may change Once the motor speed has stabilized that speed will be standardized In other words that speed will represent 100 It can be read using parameter StandardizedSp StandardizedSp should not be parameterized manually Β Note If based on the steps described above the burner s rated output cannot be reached the fan is controlled at 47 5 Hz pr...

Page 245: ...ng procedure is required on the following menu Params Display VSD Module Configuration Fuel Meter Pulse Value Gas or Params Display VSD Module Configuration Fuel Meter Pulse Value Oil The pointer indicates the unit to be selected 1 m3 1 ft3 Parameter Analog Output P u l s e V a l u e G a s C u r r 3 0 0 0 0 1 m 3 3 0 0 0 0 The proposed unit can be changed by pressing Select When pressing Enter the...

Page 246: ...d The system continuously calculates the throughput of the selected type of fuel The calculation time is dynamic and reaches from 1 to 10 seconds If the meter delivers no pulse for 10 seconds the throughput displayed is 0 This means that with minimum throughput the sensor s pulse frequency should be a minimum of 0 1 Hz The display is smoothed The maximum frequency is 300 Hz when fuel throughput is...

Page 247: ...er of speed deviations above 0 3 or 0 5 that occurred during a drive command The number of deviations 0 5 also corresponds to the number of correcting cycles The process data are only stored in RAM which means that they are reset via reset or lockout reset Β Note Procedure in case the values are too high Great dynamic deviation If no entries or only a few entries were made at Num Dev 0 5 the value...

Page 248: ...7 In operation VSDs produce electromagnetic interference For this reason to ensure EMC of the entire system the instructions provided by the manufacturers must be observed Siemens Operating Instructions EMC compatible installation Danfoss Technical Brochure Radio Interference Suppression Filters Data Sheet of Danfoss EMC filter for long motor cables Β Note When using other types of VSD compliance ...

Page 249: ...5 2018 18 3 Connection terminals Also refer to chapter Connection terminals coding of connectors FE 0 V Figure 115 Connection terminals of LMV5 Shielding a Optional shield connection for arduous environmental conditions b Alternative connection of VSD refer to documentation of used VSD ...

Page 250: ...Wire Pulse IN 3Wire PNP PIN 1 III Power supply for fuel meter Approx 10 V Max 45 mA PIN 2 Fuel meter input gas Uin max DC 10 V Uin min High level DC 3 V Uin max Low level DC 1 5 V PIN 3 Reference ground PIN 4 Functional earth for shield connection X72 Usensor FE 2Wire Pulse IN 3Wire PNP PIN 1 III Power supply for fuel meter Approx 10 V Max 45 mA PIN 2 Fuel meter input oil Uin max DC 10 V Uin min H...

Page 251: ... LMV52 provides O2 trim control control of a maximum of 6 actuators control of a VSD and acquisition of cumulated fuel consumption and current fuel throughput The LMV52 uses a QGO20 an external PLL52 and the standard components of the LMV51 The PLL52 is a detached measuring module for the O2 sensor and for 2 temperature sensors Pt1000 LG Ni1000 The module communicates with the LMV52 via CAN bus Co...

Page 252: ...f measured values that are ascertained when the burner is set This means that the controller only becomes active when environmental conditions temperature pressure change and not when the burner load changes 19 2 1 Air rate change Positioning angle Load 7550d34e 0903 Fuel damper Air damper Air rate Fuel rate Figure 117 Air rate reduction Due to the air rate reduction the O2 trim controller reduces...

Page 253: ...ects the ratio of the actual lambda change and the theoretical lambda change in relation to a change of air rate With an ideal burner a relative air rate reduction of 10 produces a lambda change of κTheory κnew 0 9 κold corresponding to a lambda factor of 1 Example If the amount of gas is influenced by the fan pressure a reduction of the air volume can simultaneously lead to an increase in the amo...

Page 254: ...h a fuel meter when making the setting 19 3 1 Calculation of precontrol Based on the settings for O2 trim control the system becomes familiar with the characteristics and behavior of the burner The lambda factor which is taken into consideration when calculating the air rate reduction reflects these learned behavior Precontrol can be calculated in 3 different ways like P air The learned lambda fac...

Page 255: ...own is initiated depending on the reading of the repetition counter followed by lockout if necessary O2 Control Both the O2 trim controller and the O2 alarm are active Prior to startup the QGO20 must have reached its operating temperature If not startup is prevented If the O2 alarm responds or if an error occurs in connection with O2 measurement the PLL52 or the QGO20 safety shutdown is initiated ...

Page 256: ...f times entered in parameter NumMinUntilDeact until the O2 trim controller is deactivated automatically The O2 minimum value alarm remains active The system operates along the parameterized ratio control curves and this parameter is set to auto deact The AZL5 indicates automatic deactivation The error code is maintained until O2 trim control is manually deactivated or activated auto deact O2 trim ...

Page 257: ...immediately and O2 trim control is activated only when the sensor reaches its operating temperature and the O2 sensor test has been successfully completed Also refer to the chapter Heating up the QGO20 sensor after power On 19 4 4 Heating up the QGO20 sensor after power ON When the system or the PLL52 is switched on for the first time the cold QGO20 is slowly heated up until its operating temperat...

Page 258: ...esponds to the factory setting and the behavior of previous LMV5 software versions without this parameter Ign Load TC The system is not started using the parameterized ignition positions and instead goes directly to the O2 setpoint with the O2 trim controller initialized via temperature compensation The ignition load can be set using the Load of Ignition parameter The O2 trim controller is initial...

Page 259: ... is defined as a multiple of the Tau Low Fire value using the NumberTauSuspend parameter NumberTauSuspend x Tau Low Fire Once this locking time has passed the O2 trim controller is initialized and after a further 4 x Tau Low Fire released The dynamic release criterion then becomes active refer to chapter Behavior in the event of load changes For initialization the start value of the manipulated va...

Page 260: ...n value of the manipulated variable is calculated based on the change to the current supply air temperature in relation to the supply air temperature at the time the settings were made Adjust Temp O2 The temperature at which the burner was adjusted is saved automatically for low fire point adaption and can be displayed A supply air temperature sensor is required for this The O2 trim controller is ...

Page 261: ... 4 8 Behavior in the event of load changes dynamic release criterion Slow load changes O2 trim control remains active Fast load changes O2 trim control becomes temporarily inactive Precontrol remains active O2ModOffset value becomes active for O2 precontrol also refer to chapter Increasing the manipulated variable in the case of fast load changes A load change is considered to be fast if an intern...

Page 262: ... increase is made depending on how fast the load change is for definition of fast refer to chapter Behavior in the event of load changes The next increase can only be made once the locking time for the load change has elapsed waiting time of 2 x Tau current load There will be no increase of the O2 value when O2 trim control is deactivated The parameter defines the increase of the O2 value in Examp...

Page 263: ...ir supplied 19 4 11 O2 trim control behavior O2 trim control behavior can be altered using the O2TrimBehavior parameter ForcdAirAdd Air is added faster than it is reduced This setting is recommended for burners where the O2 setpoint is close to the O2 minimum value Corresponds to the factory setting and the behavior of previous LMV5 software versions without this parameter ForcdAirRed Air is reduc...

Page 264: ...O20 False air ambient air in the flue gas channel for QGO20 Blockage in the combustion air inlet Parameter Gas O2MaxManVariable Oil O2MaxManVariable Gas O2MinManVariable Oil O2MinManVariable The thresholds for the manipulated variable are determined based on the anticipated changes to the supply air temperature and air pressure The manipulated variables resulting from changes to air pressure and a...

Page 265: ... Delta temperature Manipulated variable Minimum air pressure 60 mbar below set pressure Maximum temperature 30 C above set temperature Maximum anticipated manipulated value 14 7 Minimum air pressure 40 mbar above set pressure Maximum temperature 30 C below set temperature Minimum anticipated manipulated value 15 9 Figure 120 Calculating manipulate variables Legend 100 mbar 80 mbar 60 mbar 40 mbar ...

Page 266: ...f this function is not used simultaneously with the O2 deactivation function input X5 03 pin 3 has to be linked with X5 03 pin 4 L 2 Parameterization to AutoDeactO2 Alternatively the operating mode of the O2 trim controller can be changed via a mains signal at input X5 03 pin 2 from conAutodeact to auto deact by parameterizing Config X5 03 to AutoDeactO2 The system then operates along the ratio co...

Page 267: ...llowing startup until the O2 trim controller is initialized or released The locking time is necessary in order to ensure that the actual O2 value is measured The O2 trim controller is still deactivated or locked InitContr The O2 trim controller is initialized The O2 trim controller is locked LockTLoad The O2 trim controller is locked due to a load change active The O2 trim controller is active and...

Page 268: ...ol curve values only LMV52 4 This is defined using the Type O2 MaxValue parameter O2 MaxValue The O2 MaxValue parameter is used O2MaxCurve The O2 values at the ratio control curve that were measured when setting the O2 trim controller are used as O2 maximum alarm values Parameter Gas Type O2 MaxValue O2 MaxValue O2MaxCurve Oil Type O2 MaxValue O2 MaxValue O2MaxCurve Gas O2 MaxValue Oil O2 MaxValue...

Page 269: ...or occurs in connection with O2 measurement the PLL52 the QGO20 or the sensor test the LMV5 automatically switches the O2 Control operating mode to auto deact If the O2 minimum value alarm responds the system returns to the ratio control curves After a period of 3 x Tau time constants a check is carried out to see whether the O2 value is above the O2 minimum value If the O2 value exceeds the O2 mi...

Page 270: ... using the Type O2 MaxValue parameter O2 MaxValue The O2 MaxValue parameter is used O2MaxCurve The O2 values at the ratio control curve that were measured when setting the O2 trim controller are used as O2 maximum alarm values Parameter Gas Type O2 MaxValue O2 MaxValue O2MaxCurve Oil Type O2 MaxValue O2 MaxValue O2MaxCurve Gas O2 MaxValue Oil O2 MaxValue 19 5 3 Inactivation deactivation of the O2 ...

Page 271: ...onary load point is reached The system performs the test after 23 hours as soon as such stationary values are available If this is not the case after 24 hours the load is frozen in operation so that the test can be made If the system is in standby mode the test is performed during the next startup phase maximum 3 repetitions If the test is negative the system s response will be one of the followin...

Page 272: ...is 2 If the O2 content lies outside the tolerance band of 2 one of the following reactions takes place depending on the parameterization of O2Contr Alarm man deact auto deact O2 trim controller and O2 alarm are deactivated No O2 test is made O2 Alarm O2 Control O2 trim controller O2 alarm is are activated If the test is negative safety shutdown is initiated followed by a repetition if possible oth...

Page 273: ...displayed To ensure that the calculation is made correctly the fuel parameters must be selected and set in accordance with the type of fuel Also refer to chapter Parameterization of type of fuel The calculation is made according to the following formula 1 BimSchV 1 Bundes Imissionsschutzverordnung First Federal Imission Protection Decree Flue gas volume ratio V_atrNmin V_afNmin AVft O2 value dry O...

Page 274: ...emains active In the O2 Alarm and O2 Control operating modes lockout is initiated The following displays appear in the display of the AZL52 O 2 S e n s o r S e r v i c e i n t e r v a l e x p i r e d The service work to be performed is described in the QGO20 Basic Documentation P7842 refer to chapter Service note Using the O2SensServTimRes parameter the timer can be reset once the service work has...

Page 275: ...d as an option enabling for example the combustion efficiency to also be calculated and displayed The PLL52 is to be connected to the LMV5 via CAN bus The PLL52 must be located in the vicinity of the QGO20 10 m aimed at keeping interference on the sensitive detector lines as low as possible For sensor heating the PLL52 requires a separate mains connection facility 19 8 1 Inputs and outputs Tempera...

Page 276: ...e max 4 A PIN 1 12VAC1 AC supply for O2 module X85 PIN 5 GND III Signal reference PIN 4 CANL Communication signal DC U 5 V Rw 120 ς level to ISO DIS 11898 PIN 3 CANH Communication signal PIN 2 12VAC2 AC supply for O2 module AC 12 V 10 15 0 60 Hz fuse max 4 A PIN 1 12VAC1 AC supply for O2 module Combustion air flue gas temperature sensor X86 PIN 3 III Shield connection PIN 2 Signal reference PIN 1 ...

Page 277: ...im control with LMV52 and PLL52 22 05 2018 Pt LG Ni 1000 CANH CANL BUS CANH CANL BUS 12VAC1 12VAC2 12VAC1 12VAC2 12VAC1 12VAC2 FE FE Brown braun FE U3 PE F 6 3 AT Pt LG Ni 1000 Temporary connection for AZL5 X86 X87 X81 X89 01 X89 02 X85 X84 Figure 122 Connection diagram PLL52 ...

Page 278: ...us line the CAN bus termination must be activated 19 9 Configuring the PLL52 The connected sensors are to be configured via the AZL5 The QGO20 connected to terminals X81 X89 02 must be parameterized Parameter O2 Sensor NoSensor QGO20 The combustion air temperature sensor connected to terminal X87 must be parameterized Parameter Combustion air temperature sensor NoSensor Pt1000 LG Ni1000 The flue g...

Page 279: ...ntrol must be readjusted deactivated Actuator is not active activated Actuator is active but has no impact on the air volume Actuator is not used for O2 trim control air influen Actuator is active and has an impact on the air volume Actuator is used for O2 trim control Parameter Air actuator deactivated activated air influen Auxiliary actuator 1 deactivated activated air influen Auxiliary actuator...

Page 280: ...gas volume dry with stoichiometric combustion κ 1 in m flue gas dry per m gas or in m flue gas dry per kg oil This value is used for calculating O2 trim control precontrol or the combustion efficiency Parameter A2 This value is used for calculating the combustion efficiency It is in compliance with the definition given in the first BimScHV Parameter B 1000 This value is used for calculating the co...

Page 281: ...activated precontrol will transfer any nonlinearity to the actual O2 value When adjusting the load the actual O2 value fluctuates about the O2 setpoint Check the linearity of the O2 progression by approaching the loads between the curvepoints If the O2 ratio value has such nonlinearities they can be corrected by setting intermediate curvepoints The more thoroughly the ratio control curve is set th...

Page 282: ...values by lowering the air rate On the first line select the point number and confirm by pressing Enter Now select line P Air Man and confirm After confirming with Enter the fuel air ratio control system approaches this point on the parameterized ratio control curve that is air rate reduction P Air Man is set to 0 The display on the second line changes to Actual O2 Value which will then be display...

Page 283: ...ecessary setting steps For adaption of the O2 trim controller during low fire operation the following parameter is available Parameter LowfireAdaptPtNo This parameter is intended for plant where the flue gas speed at curvepoint 2 is too low to produce valid adaption values Β Note O2 trim control is not performed below the parameterized LowfireAdaptPtNo First select the required curvepoint and conf...

Page 284: ...urvepoint system adaption takes place during the storage process This is accomplished by measuring the delay time σ of the boiler plant Based on these values the PI control parameters the controller locking time after load readjustment and the min value delay for the O2 alarm are calculated To measure the time constant σ the burner is driven back to the ratio control curve With the other curvepoin...

Page 285: ...t will lie above the O2 setpoints required by O2 trim control Example Figure 123 Setting fuel air ratio control Parameterized load proportional to the fuel rate The burner load parameterized at the curvepoints must be proportional to the actual burner load To make the correct setting determine the burner load with the help of the fuel meter Curvepoint 1 The first curvepoint should have an adequate...

Page 286: ... and the O2 progression should be appropriately corrected 1 2 3 4 5 6 O2 100 Load Linear good progression of O 2 O2 ratio control Nonlinear poor progression of O 2 Set additional curvepoints 7550d32e 0903 Figure 124 Linear progression of O2 value between the curvepoints Checking the transfer range between damper and VSD When using several air regulating actuators e g air damper or VSD it should be...

Page 287: ...r distance is used the ratio control curve must be set as accurately as possible in accordance with chapter Setting notes Setting fuel air ratio control All O2 setpoints must be adjusted under the same environmental conditions It is important to adjust the O2 setpoints at the same ambient temperatures If later individual setpoints are changed all setpoints of the curvepoints must be readjusted sin...

Page 288: ...Primary side Secondary side AC 120 V AC 12 V 3x Transformer AGG5 220 Primary side Secondary side AC 230 V AC 12 V 3x 19 14Loads on terminals cable lengths and cross sectional areas Refer to chapter Technical Data LMV5 and AZL5 Cable lengths cross sectional areas Electrical connection X89 Screw terminals up to max 2 5 mm Cable lengths 10 m to QGO20 Cross sectional areas Refer to description of QGO2...

Page 289: ...o a significant increase of NOx levels As a result of these reciprocal effects the setting of the fuel air ratio control O2 trim control and the flue gas recirculation FGR function is difficult or impossible Even if it is possible to make adjustments it may be the case during operation that the flame is unstable or the required NOx values cannot be achieved This does not affect the use of the O2 m...

Page 290: ...ature With these operating principles the positions of auxiliary actuator 3 can only change between CLOSED ignition position and the positions on the ratio control curves The point in time transition from the ignition position to a position on the ratio control curve takes place depends either on the progression of the parameterized time ThresholdFGR Oil or the point in time the parameterized temp...

Page 291: ... temperature Auxiliary actuator 3 maintains the ignition position until an adjustable temperature is reached temp contr The position of auxiliary actuator 3 is determined depending on the flue gas temperature and the ratio control curve In addition the actuator can maintain the ignition position until an adjustable time parameter DelaytimeFGRGas DelaytimeFGROil is reached TCautoDeact Same manner o...

Page 292: ...86 and the O2 trim controller alarm is active not CtrlAutoDeac flue gas recirculation FGR mode temperature compensated cannot be used would lead to error C F6 D 2 When operating mode O2 Control is deactivated man deact operating mode TCautoDeact can be used if the flue gas temperature is acquired via PLL52 X86 Β Note Setting deactMinpos is recommended when commissioning the plant since erroneous t...

Page 293: ...when there is a deviation from the learned flue gas recirculation FGR temperature This means that when reaching the initially acquired flue gas recirculation FGR temperature the stored position is approached independent of the flue gas recirculation FGR factor See the Examples of tables showing the damper positions with FGR FGR Minpos Minimum limitation of position of auxiliary actuator 3 for temp...

Page 294: ...gas recirculation FGR factor of 100 Position flue gas recirculation with T 0 C zero curve 15 2 18 0 19 7 23 8 Example of flue gas recirculation FGR positions calculated from the identical setting values for a flue gas recirculation FGR factor of 50 Position flue gas recirculation with T 0 C zero curve 7 6 9 0 9 8 11 9 The above example shows that with the zero curve a flue gas recirculation FGR fa...

Page 295: ...until the curve settings become active Analogously in flue gas recirculation FGR mode Temperature set the switch on temperature to a level that cannot be reached After completing the settings of the fuel air ratio control curves without flue gas recirculation FGR the actual settings with an active auxiliary actuator 3 can now be made Since this might have an impact on the combustion settings the f...

Page 296: ...r 3 is not marked with when making the setting it is already on the ratio control curve in which case it also follows the readjustment of the position value If marked with or in case of selection without driving the curve position can be readjusted without having the actuator following the position value Β Note During the time the curve menu is used the state of the flue gas recirculation FGR func...

Page 297: ...etting the fuel air ratio control curves of auxiliary actuator 3 in flue gas recirculation FGR mode temp compensated the current flue gas recirculation FGR temperature is also displayed Select the required curvepoint then continue by pressing Enter P o i n t P o i n t 3 c h a n g e O 2 d e l e t e 2 8 I Here the cursor position can be changed between change and delete The edit a curvepoint select ...

Page 298: ... Change of display when selecting auxiliary actuator 3 F G R T I L o a d 2 3 5 1 3 3 I F u e l 2 3 2 O 2 I A i r 4 1 6 2 8 I A u x 3 3 3 3 When selecting auxiliary actuator 3 the display shows the current flue gas recirculation FGR temperature in place of the curvepoint number The availability of this temperature is a means that enables you to correctly select the functionality of flue gas recircu...

Page 299: ...tting in standby deactivation of an individual curvepoint of flue gas recirculation FGR When changing a curvepoint in standby the LMV5 stores an invalid flue gas recirculation FGR temperature XXXX when reading the temperature values in the temperature curve This approach can be used to subsequently exclude a curvepoint from the flue gas recirculation FGR process In that case the flue gas recircula...

Page 300: ...ature curve corresponding to presetting or temperature curve deleted In flue gas recirculation mode deactMinpos or auto deact auxiliary actuator 3 is always kept in the minimal flue gas recirculation position During the time the curve settings are made this is indicated by the symbol meaning modulating F G R T I L o a d 2 3 5 1 3 3 I F u e l 2 3 2 O 2 I A i r 4 1 6 2 8 I A u x 3 3 3 3 Β Note Recom...

Page 301: ...rams Display Flue Gas Recirc OperationTempGas or OperationTempOil O p e r a t i o n T e m p G a s P o i n t 1 L o a d 1 0 0 F G R T e m p 1 2 3 C Using this function all possible temperature values 15 can be read out Invalid or non existing curvepoints are identified by XXXX The valid value range of the flue gas recirculation FGR temperature is 30 508 C and has a resolution of 2 C XXXX on the 2 li...

Page 302: ...27 Building Technologies Basic Documentation LMV5 CC1P7550en 21 Dimensions 22 05 2018 21Dimensions Dimensions in mm 66 33 19 36 9 41 5 41 5 222 240 83 9 142 160 7550m03 0703 Figure 127 Dimension PLL52 PLL52 ...

Page 303: ...stop position the AZL5 displays Programstop active Deactivating the alarm The alarm relay can be deactivated via the menu of the AZL5 which means that the actual lockout or start prevention is maintained Deactivation remains active until the next reset is made system reset or startup occurs Then normal alarms are resumed that is deactivation of the alarm applies to the current alarm Pressure switc...

Page 304: ...tch off device Prepurge time after safety shutdown After safety shutdown the longer prepurge time PrepurgeSafeGas Oil becomes active Changes to the supplied parameter set The parameter set has been changed from V20 02 00 to V20 03 00 The software of the basic card has been changed from V02 20 to V02 30 The following changes have been introduced Driving to the low fire positions After ignition firs...

Page 305: ...in particular the burner control versions that use the American standard parameter set 8 Introduction of maximum load limitation at the Enduser level 9 Hiding an adjustable load range aimed at reducing resonance phenomena in the burner boiler stack system 10 The fuel actuator can be deactivated only with LMV52 11 Flue gas recirculation FGR only with LMV52 Actuator AUX3 can be employed for controll...

Page 306: ...revention changed 22 2 1 7 Basic unit LMV52 Software from V04 50 to V04 80 1 Flame failure during second safety time 2 Error code and repetition counter for flame failure during second safety time changed from Loss of flame during operation to No flame at the end of the safety time 3 Fuel train with direct ignition In the case of fuel trains with direct ignition G LO HO phases 50 second safety tim...

Page 307: ... the signal of the air pressure switch for flue gas recirculation FGR in standby is not valued In case of continuous purging only start prevention is triggered and a message appears in place of a response in the form of shutdown New mode PS VSD When using this setting the pressure switch for flue gas recirculation FGR must deliver an ON signal if the VSD speed lies above the speed set via paramete...

Page 308: ...9 03 pin 4 via parameter GasPressureMin deact xOGP setting available for deactivating LOgp and HOgp refer to chapter Gas pressure switch min X9 03 pin 4 6 Heavy oil direct start X6 01 pin 3 with minimum temperature supervision in phases 21 61 and 38 62 refer to chapter Heavy oil direct start X6 01 pin 3 7 Air pressure supervision can be deactivated in standby mode refer to chapter Air pressure swi...

Page 309: ...function Additional air pressure switch for VSD application X4 01 pin 3 refer to chapter Fan contactor contact flue gas recirculation pressure switch 22 2 1 12 Basic unit LMV50 relaunch with V10 20 software With the 2012 2013 release upgrade for the LMV5 a new LMV50 variant for industrial applications EN 746 2 has been introduced The LMV50 has the same hardware and software functions as the LMV51 ...

Page 310: ...minimum value alarm remains active even once O2 trim control has been deactivated refer to chapter Operating modes of O2 trim controller O2 alarm 6 There is no waiting time following mains failures if the QGO20 cell temperature is higher than 690 C at start up refer to chapter Heating up the QGO20 sensor after power On 7 O2 trim control behavior can be altered using the O2TrimBehavior parameter re...

Page 311: ...ns the following new functions 1 Various new start options for the burner start were implemented specifically for burner heads with metal mesh for the operating mode O2 controller which can be set via the parameter Startmode refer to chapter Burner start mode of the O2 trim control 2 Long postpurge time tn3 up to 65 535 minutes can be set refer to chapter Long postpurge time 22 2 1 15 Basic unit L...

Page 312: ...t LC X62 intLC Operating mode 5 2 Ext LC X62 intLC Operating mode 3 2 Int LC Bus intLC Operating mode 6 2 Ext LC Bus intLC Operating mode 1 2 ExtLC X5 03 intLC With software version V01 50 or higher Pt100 sensors in operating mode 6 are permitted New load controller function for analog input for predefined load and load output Manipulated variable input modulating 3 mA Line interruption 4 mA or 2 ...

Page 313: ...nge 7 The minimal step for burner output Minimum actuator step also becomes active for external load controllers 8 22 2 2 4 Load controller Software from V01 80 to V02 10 1 Cold start thermal shock protection The starting point for thermal shock protection was increased from 0 output to minimum output At the end of thermal shock protection the load controller is initiated with the current output A...

Page 314: ...9 DC 18 Page disrupted statistics data are now only stored in standby and operation 2 Offset at setpoint output In some cases the correction offset for the speed setpoint was not reset after a safety shutdown This could lead to error messages The new version eliminates this effect 3 Internal tests Internal system tests have been modified allowing the VSD test initialized by the LMV5 to be dropped ...

Page 315: ...nd MRange TempSens Ino2PressBerEnd MRange PressSens Inp3Config_I U Ext Inp X62 U I Inp3MinSetpoint Ext MinSetpoint Inp3MaxSetpoint Ext MaxSetpoint Fuel meter with reading in liters A blank has been introduced between the value and the unit Preventing the transfer of parameter copies from new LMV5 to the backup memory of the AZL5 Copying is not possible and a message is delivered Parameter changes ...

Page 316: ...ly is now more tolerant 3 Error code 1E diagnostic code 10 after standardization of the VSD This error code occurred with ramp times above 35 seconds The problem has been eliminated 4 Change of load controller mode 6 to 2 The output can now be changed 5 VSD 0 with prepurging Smallest adjustable value has been changed to 10 speed 6 VSD correction with speed deviations has been changed 7 Using the P...

Page 317: ...ed if the flue gas recirculation FGR function is activated and auxiliary actuator 3 has been selected for making the setting New function Reading and display of stored curves of the flue gas recirculation FGR temperatures OperationTempGas and OperationTempOil New function Reading and display of temperature currently acquired by the flue gas recirculation sensor provided the AZL5 operates in interf...

Page 318: ...pdate function The text displayed on the AZL5 when parameters are being downloaded from the AZL5 to the LMV5 has been changed from Backup restore is carried out when the backup is in progress to Backup restore is being carried out in order to avoid misunderstandings 12 Display text corrected for the O2 trim control delay time Delay Time is now shown instead of Dela Time 13 Italian display text for...

Page 319: ... DeaO2 Stp36 CoolFctStby AutoDeactO2 New parameter HeavyOilDirStart deactivated activ 38 44 38 44 62 act 21 62 HTempGuard ext FlameGd New settings ReacTmeLossFlame New parameter NoFlame_ts New parameter for LMV50 O2 Alarm New English marking Time O2 Alarm New parameter NumMinUntilDeact New parameter Type O2 MaxValue O2MaxValue O2MaxCurve New parameter O2 MaxValue New parameter O2ModOffset New mark...

Page 320: ...nal display AZL5 39 Flame supervision 40 burner control section 227 C Calculation of precontrol 254 CAN bus cable 233 CAN bus X84 X85 278 Checking and changing the controller parameters 284 checking the control parameters 113 checking the O2 content 272 coding of connectors 196 cold start thermal shock protection 125 188 cold start thermal shock protection modulating operation 125 cold start therm...

Page 321: ...ctuator speed in normal operation 91 Actuator speed outside normal operation 90 Idle position 87 Ignition positions 87 Limitation of load range 97 Masking out load range 98 Multistage operation 92 Position check safety time 93 Postpurge positions 90 Prepurge position 87 Program stop 96 Special features 96 Electronic ratio control Shutdown behavior 98 Electronic ratio control Overload protection 99...

Page 322: ...nting clip for mounting rail 224 mounting electrical installation and service 213 mounting notes 12 multiboiler plants 129 multiboiler plants by means of analog input 129 multiboiler plants by means of digital interface 129 multistage control 115 N notes on mounting the AZL5 13 notes on mounting the LMV5 12 Number fuel actuators 85 O O2 alarm 268 O2 control Loads on terminals cable lengths and cro...

Page 323: ...ting and parameterization notes 16 setting electronic fuel air ratio control in connection with FGR 295 Setting fuel air ratio control 281 285 Setting notes 285 setting O2 trim control 283 setting the O2 alarm 281 setting the O2 trim controller 287 Setting the user defined type of fuel 280 settings for gas fired operation 171 settings in temperature compensated mode 297 settings in time or tempera...

Page 324: ...ct ignition modulating with shutdown facility for adjustable head 27 Figure 16 Fuel train application fuel valve control 27 Figure 17 Fuel train application heavy oil direct ignition 2 stage 28 Figure 18 Fuel train application heavy oil direct ignition modulating 28 Figure 19 Fuel train application fuel valve control 29 Figure 20 Fuel train application dual fuel burner gas light oil with gas pilot...

Page 325: ...Operating mode 2 with load controller 102 Figure 49 Operating mode 3 with load controller 103 Figure 50 Operating mode 4 with load controller 104 Figure 51 Operating mode 5 with load controller 105 Figure 52 Operating mode 6 with load controller 106 Figure 53 Modulating control function diagram example 1 109 Figure 54 Modulating control function diagram example 2 109 Figure 55 Modulating control a...

Page 326: ...ection terminals LMV51 040x1 190 Figure 87 Connection terminals LMV51 000x1 LMV51 000x2 LMV51 040x2 191 Figure 88 Connection terminals LMV51 140x1 192 Figure 89 Connection terminals LMV51 100x1 LMV51 100x2 LMV51 140x2 193 Figure 90 Connection terminals LMV51 300x1 LMV51 300x2 LMV52 200x1 LMV52 200x2 LMV52 240x2 LMV52 400x1 LMV52 400X2 194 Figure 91 Connection terminals LMV51 340x1 LMV52 240x1 LMV5...

Page 327: ...igure 113 Sensor disk 241 Figure 114 Speed sensor 241 Figure 115 Connection terminals of LMV5 249 Figure 116 LMV52with O2 trim control and PLL52 251 Figure 117 Air rate reduction 252 Figure 118 Initializing the O2 trim controller 259 Figure 119 Increasing the manipulated variable in the case of a load change 262 Figure 120 Calculating manipulate variables 265 Figure 121 Inputs outputs PLL52 275 Fi...

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