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Building Technologies

Basic Documentation LMV27...

CC1P7541en

2 System structure / function description

17.12.2018

2 System structure / function description

The LMV27 is a microprocessor-based burner management system with matching
system components for the control and supervision of forced draft burners of medium to
high capacity.

In the LMV27 are integrated:



Burner management system complete with valve proving system



Electronic air-fuel ratio control system for a maximum of 2 SQM3 or SQN1
actuators



Modbus

interface

Figure 4: System structure

Example:

Modulating gas burner

The system components (AZL2, actuators) are connected directly to the LMV27. All
safety-related digital inputs and outputs of the LMV27 are monitored by a contact
feedback network.

The diagram shows the full scope of functions of the LMV27. The actual functions are to
be determined based on the respective execution / configuration!

2.1 For

Europe

For intermittent operation in connection with the LMV27, the ionization probe or the
QRA, QRB or QRC optical flame detectors can be used.

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Summary of Contents for LMV27.100x2

Page 1: ...2 2018 Building Technologies LMV27 100x2 Basic unit with integrated air fuel ratio control for forced draft burners Basic Documentation The LMV27 and this Basic Documentation are intended for OEMs which integrate the units in their products ...

Page 2: ...541en 17 12 201816 Supplementary documentation User Documentation Modbus AZL2 A7541 Environmental Product Declaration LMV2 LMV3 E7541 Installation and Operating Instructions PC Software ACS410 J7352 Data Sheet LMV27 N7541 Product Range Overview LMV2 LMV3 Q7541 ...

Page 3: ... 22 4 1 LMV27 basic unit 22 4 1 1 Terminal loading Inputs 22 4 1 2 Terminal loading Outputs 23 4 1 3 Analog output load output X74 pin 3 23 4 1 4 Cable lengths 24 4 1 5 Cross sectional areas 24 4 1 6 Connections of actuators 24 4 2 AGV50 signal cable from AZL2 BCI 25 4 3 Environmental conditions 25 4 4 Flame detectors 26 4 4 1 Ionization probe 26 4 4 2 UV flame detectors QRA2 QRA4 QRA10 28 4 4 3 P...

Page 4: ... 5 Program sequence 48 7 5 1 Time parameters 48 7 5 2 Valve proving 49 7 5 2 1 Valve proving with separate pressure switch X9 04 50 7 5 2 2 Valve proving via gas pressure switch min X5 01 51 7 5 2 3 Lockout phase phase 00 51 7 5 2 4 Safety phase phase 01 52 7 5 3 Special functions during the program sequence 53 7 5 3 1 Reset manual lockout 53 7 5 3 2 Alarm upon start prevention 54 7 5 3 3 Possible...

Page 5: ...n of curves 91 10 3 2 Traveling speed maximum curve slope 92 10 3 3 Entering the running position 92 10 3 4 Operating position 92 10 3 5 Limitation of modulation range 93 10 3 6 Setting the minimum and maximum output 94 10 4 Multistage operation 95 10 4 1 Definition of curves 95 10 4 2 Traveling speed 95 10 4 3 Adjustment of output 96 10 4 4 Entering the operating position 96 10 4 5 Operating posi...

Page 6: ...6 2 Modbus 113 17 PC software ACS410 114 18 Error history 115 18 1 Error classes 115 18 2 Makeup of error history 116 19 Lifecycle function 117 20 Safety notes on use of the AZL2 117 21 Operating via AZL2 unit 118 21 1 Description of unit display and buttons 118 21 2 Meaning of symbols on the display 119 21 3 Brightness of display 119 21 4 Special functions 120 21 4 1 Manual lockout 120 21 4 2 Man...

Page 7: ...5 2 4 End of service level 139 26 Parameter level 140 26 1 Entry of password 141 26 2 Entry of burner identification 143 26 3 Change of heating engineer s password 145 26 4 Change of OEM s password 146 26 5 Use of parameter level 147 26 6 Structure of parameter levels 148 26 7 Parameters without index with direct display 149 26 7 1 Using the example of parameter 208 Program stop 149 26 8 Parameter...

Page 8: ...settings for G mod pneu Gp1 mod pneu and Gp2 mod pneu 169 26 11 8 Editing the curvepoints 170 26 11 9 Interpolation of curvepoints 171 26 11 10 Setting of curvepoints for multistage mode Lo 2 stage and Lo 3 stage 174 26 11 11 Warm settings for Lo 2 stage and Lo 3 stage 175 26 11 12 Cold settings for multistage mode Lo 2 stage and Lo 3 stage 179 26 11 13 Intensity of flame during curve settings 180...

Page 9: ...ectrical components must be ensured through adequate mounting In terms of design stability and protection the cover used must conform to EN 60730 After each activity mounting installation and service work etc check to ensure that wiring is in an orderly state and that the parameters are correctly set Fall or shock can adversely affect the safety functions Such units must not be put into operation ...

Page 10: ...ation this may be an indication of contact problems and the LMV27 should be replaced 1 2 Mounting notes Ensure that the relevant national safety regulations and standard notes are complied with In geographical areas where DIN regulations are in use the requirements of VDE must be satisfied especially DIN VDE 0100 0550 and DIN VDE 0722 The LMV27 must be secured with fixing screws M4 UNC32 or M5 UNC...

Page 11: ... When using other types of signal cable that do not meet the specification requirements safety against electric shock hazard is not necessarily ensured Do not lay signal cable AGV50 from the LMV27 to the AZL2 together with other cables Service operation with a longer signal cable from the LMV27 If a longer signal cable is required for service work for example short time usage 24 hours note that th...

Page 12: ...ective Extra Low Voltage ensure protection against electric shock hazard FELV Functional Extra Low Voltage without safe separation offers no protection which in the event of fault would not exclude risks Mains voltage SELV PELV FELV Mains voltage Figure 2 Electrical connection Note SELV or PELV depends on the safety class of the connected components In the case of PELV the relevant component is co...

Page 13: ...e signal cable from the LMV27 to the AZL2 together with other cables Use a separate cable Service operation with a longer signal cable from the LMV27 to AZL2 If a longer cable is required for service work for example short time usage 24 hours note that the above application under the burner hood no longer applies and for this reason the cable may be subjected to increased mechanical stress In that...

Page 14: ...detector cable lengths The mains powered ionization probe is not protected against electric shock hazard It must be protected against accidental contact Earth the burner in compliance with the relevant regulations earthing the boiler alone does not suffice Locate the ignition electrode and the ionization probe such that the ignition spark cannot arc over to the ionization probe risk of electrical ...

Page 15: ...h that while giving consideration to the combustion chamber fuel pressure temperature and combustion air pressure as well as wear of actuators and controlling elements etc correct operation with sufficient amounts of excess air will be ensured across the burner s full output range for an extensive period of time until the next regular inspection is due also refer to chapter Monitoring the position...

Page 16: ...ose manually disconnect the fuel valves from power and check the time from this moment the LMV27 requires to turn off power to the valve Turning off power to the valves by the LMV27 within the period of time permitted for the respective type of plant e Check the safe operation of the burner while giving consideration to LMV27 tolerances LMV27 tolerances are the result of a number of factors such a...

Page 17: ...es checked With the LMV27 it is to be noted that the unit s characteristics are determined primarily by the specific parameter settings rather than the type of LMV27 This means that among other things each time a plant is commissioned the parameter settings must be checked and the LMV27 must not be transferred from one plant to another without adapting the parameter settings to the new plant When ...

Page 18: ...rs and gas burning appliances Part 2 Electronic types DIN EN 12067 2 Safety and control devices for burners and appliances burning gaseous and or liquid fuels General requirements DIN EN 13611 Safety and control devices for gas burners and gas burning appliances Particular requirements Part 1 Automatic and semi automatic valves ISO 23552 1 Automatic electrical controls for household and similar us...

Page 19: ...e given on the type field This lifetime is based on the endurance tests specified in standard EN 298 A summary of the conditions has been published by the European Control Manufacturers Association Afecor www afecor org The designed lifetime is based on use of the LMV27 according to the manufacturer s Data Sheet and Basic Documentation After reaching the designed lifetime in terms of the number of...

Page 20: ...tronic air fuel ratio control system for a maximum of 2 SQM3 or SQN1 actuators Modbus interface Figure 4 System structure Example Modulating gas burner The system components AZL2 actuators are connected directly to the LMV27 All safety related digital inputs and outputs of the LMV27 are monitored by a contact feedback network The diagram shows the full scope of functions of the LMV27 The actual fu...

Page 21: ...th the PC software ACS410 for dual fuel operation on request Among other features the ACS410 software affords convenient readout of settings and operating states parameterization of the LMV27 and trend recordings The burner boiler manufacturer can select from different types of fuel trains and make use of a wide choice of individual parameter settings program times configuration of inputs outputs ...

Page 22: ... loading Inputs Perm mains primary fuse externally Max 16 AT Unit fuse F1 internally 6 3 AT DIN EN 60127 2 5 Mains supply Input current depending on the operating state of the unit Undervoltage Safety shutdown from operating position at mains voltage Approx AC 186 V Restart on rise in mains voltage Approx AC 195 V Status inputs Status inputs with the exception of the safety loop of the contact fee...

Page 23: ... 60 Hz Rated current 1 A Power factor Cos 0 4 Ignition transformer Rated voltage AC 230 V 50 60 Hz Rated current 2 A Power factor Cos 0 2 Fuel valves Rated voltage AC 230 V 50 60 Hz Rated current 2 A Power factor Cos 0 4 Operation display Rated voltage AC 230 V 50 60 Hz Rated current 0 5 A Power factor Cos 0 4 Safety valve magnetic clutch oil pump Rated voltage AC 230 V 50 60 Hz Rated current 2 A ...

Page 24: ...age might cause electromagnetic interference Specification as per EN 60730 1 Type of shutdown or interruption of each circuit Shutdown with microswitch 1 pole Mode of operation Type 2 B 4 1 5 Cross sectional areas The cross sectional areas of the mains power lines L N and PE and if required the safety loop safety limit thermostat water shortage etc must be sized for rated currents according to the...

Page 25: ...ental conditions 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 30 60 C Humidity 95 r h Operation DIN EN 60721 3 3 Climatic conditions Class 3K3 Mechanical conditions Class 3M3 Temperature range 20 60 C Humidity...

Page 26: ...ltaneous operation of QRA and ionization probe is not permitted Note The higher the detector cable s capacitance cable length the more voltage at the ionization probe and thus the detector current drops Long cable lengths plus very highly resistive flames might necessitate low capacitance detector cables e g ignition cable In spite of technical measures taken in the circuitry aimed at compensating...

Page 27: ...ty of flame parameter 954 24 0 10 20 30 40 50 60 70 80 90 100 0 2 4 6 8 10 12 14 16 Flame intensity in Ionization current in µA Ionization input Bild 442en 0916 Figure 5 Ionization input at AC 230 V Ionization probe LMV M C ION X10 05 2 X10 05 1 Legend C Electrolytic capacitor 100 470 µF DC 10 25 V ION Ionization probe M Microammeter Ri max 5 000 Figure 6 Measuring circuit for ionization probe Mea...

Page 28: ...covering QRA4 UV flame detector Operating voltage Max 350 V peak Required detector current in the operation mode Min 30 µA Possible detector current in the operation mode Max 600 µA Permissible length of detector line normal cable lay separate Max 6 m Threshold values when flame is supervised by QRA Start prevention extraneous light Intensity of flame parameter 954 18 Operation Intensity of flame ...

Page 29: ...it should be checked whether this type of flame detector is indeed required Increased line capacitance between QRB1 QRB3 connection and mains live wire L has an adverse effect on the sensitivity and increases the risk of damaged flame detectors due to overvoltage Always run detector cables separately Threshold values when flame is supervised by QRB1 QRB3 Start prevention extraneous light with RQRB...

Page 30: ...wire to wire100 pF m Threshold values when flame is supervised by QRB4 Start prevention extraneous light Flame intensity parameter 954 10 Operation Flame intensity parameter 954 16 Note In the case of the QRB4 the maximum intensity display is limited to approximately 40 due to the system parameter 954 Note Connection of QRB4 cables Blue cable of QRB4 to terminal X10 05 pin 4 Black cable of QRB4 to...

Page 31: ... Intensity of flame parameter 954 Operation with IQRC Ca 25 µA display approx 16 Intensity of flame parameter 954 Required detector current with flame Permissible detector current without flame Typical detector current with flame QRC Min 70 µA Max 5 5 µA 100 µA The values given in the table above only apply under the following conditions Mains voltage AC 230 V Ambient temperature 23 C LMV sw bl br...

Page 32: ...C1P7541en 5 Dimensions 17 12 2018 5 Dimensions 5 1 LMV27 Dimensions in mm 230 202 192 141 82 5 22 8 10 2 16 5 39 3 118 5 122 135 217 202 172 128 5 82 5 27 2 12 5 23 5 R100 60 19 5 19 7 7541m08 0506 25 5 53 6 76 6 100 8 118 5 Figure 10 Dimensions of the LMV27 ...

Page 33: ...ftware enabled a simple operation comfortable readout of settings and operating states the parameterization trend recording and targeted diagnostic of LMV27 For this purpose the OCI410 interface for communication with the LMV27 is connected to the PC This interface is available separately and is connected to the integrated RJ11 jack 7 Basic unit LMV27 7 1 Description of inputs and outputs This sec...

Page 34: ...ter 221 Gas Active detector flame evaluation 0 QRB QRC 1 ION QRA 261 Oil Active detector flame evaluation 0 QRB QRC 1 ION QRA 7 2 1 Loss of flame In the event of loss of flame the unit initiates safety shutdown followed by a restart if required A repetition counter can be used to select the number of flame losses after which the unit shall initiate lockout refer to chapter Repetition counter Error...

Page 35: ... phase 1 Extraneous light during the shutdown phase 2 Extraneous light during the startup phase start prevention 7 2 3 No flame at the end of safety time TSA If no flame is established by the end of the first safety time the unit initiates lockout Error code Diagnostic code Meaning for the LMV27 2 1 No flame at end of the first safety time 2 No flame at end of the second safety time 7 2 4 Flame in...

Page 36: ...13 Safety loop X3 04 For diagnostic purposes the contacts of the components included in the safety loop and the burner flange contact are combined for delivering the safety loop signal If there is no such signal the system initiates safety shutdown in any event If with Load controller ON there is no signal from the safety loop start prevention error code 22 is translated to text display OFF S S sa...

Page 37: ...tion of load controllers When there are no more requests for heat the burner shuts down The fuel valves are closed either immediately when the timer has elapsed or when the low fire position is reached depending on the parameter settings refer to chapter End of operating position Note Burner startup takes place only when this contact is closed LMV Bild 275e 1010 X5 03 External load controller On O...

Page 38: ...air pressure switch This may necessitate a special approval depending on the type of application LMV Bild 277e 1010 X3 02 Air pressure switch LP L for air pressure switch LP 2 1 Figure 17 Air pressure switch X3 02 No Parameter 235 Air pressure switch 1 active 2 active except phase 60 66 70 72 pneumatic operation only Error code Diagnostic code Meaning for the LMV27 3 0 Air pressure off 1 Air press...

Page 39: ... valve proving on shutdown 3 valve proving on startup and shutdown Protective earth PE Pressure switch valve proving L for pressure switch LMV X9 04 3 2 1 Figure 18 Gas pressure switch valve proving X9 04 Pressure switch valve proving Input for connection of valve proving with a specific pressure switch The input is active only when firing on gas and when valve proving is activated Error code Diag...

Page 40: ...refer to chapter Gas shortage program If value 2 is set the gas shortage check only takes place in phase 39 or in conjunction with a potential valve proving as part of commissioning When the gas pressure switch min is mounted after the fuel valves a gas shortage check cannot be carried out The supervision of the gas pressure is only carried out from phase 40 direct ignition or from phase 50 pilot ...

Page 41: ... the gas shortage program refer to chapter Repetition counter No Parameter 223 Repetition limit value gas pressure switch min 1 no repetition 2 15 1 14 number of repetitions 16 constant repetition Recharging time After the Operation phase Start release gas If at the same time the input is used as a start release input e g for an air supply damper it can be connected in series with the pressure swi...

Page 42: ...switch min No minimum gas oil pressure 20 1 Gas shortage start prevention During the safety times the signal from pressure switch min is only assessed after a certain period of time in order to ignore the pressure shocks that occur the moment the valves open The time to elapse for signal assessment can be parameterized No Parameter 269 Oil Time to respond to pressure faults in the first and second...

Page 43: ...used as POC proof of closure refer to chapter Sequence diagrams No Parameter 237 Gas Input pressure switch max POC 1 pressure switch max 2 POC 3 pressure switch valve proving 4 not uses Note If the input is used for POC or pressure switch pressure switch max can be included in the safety loop In that case pressure switch max must not be fitted between the valves but downstream from them Gas pressu...

Page 44: ...rameter 269 Oil Time to respond to pressure faults in the first and second safety time The pressure switch connection can also be used as POC Proof of Closure refer to chapter Sequence diagrams No Parameter 277 Oil Input pressure switch max POC 1 pressure switch max 2 POC 3 not used 4 additional speed dependent air pressure switch Note If the input is used for POC pressure switch max can be includ...

Page 45: ...tput for connection of an alarm lamp or horn The output is activated when the LMV27 is in the lockout position phase 00 This output can also be used to indicate start prevention 7 4 2 Fan motor contactor type SI X3 05 pin 1 LMV Bild 283e 1109 X3 05 Fan motor contactor Figure 23 Fan motor contactor X3 05 Output for control of a fan power contactor 200 VA In accordance with the sequence diagrams the...

Page 46: ...t prior to the first safety time in phase 38 The preignition time in phase 38 can be parameterized No Parameter 226 Gas Preignition time Oil When firing on oil there is a choice between long and short preignition as with gas operation from phase 38 No Parameter 281 Oil Point in time oil is ignited 0 short preignition phase 38 1 long preignition with fan phase 22 When using long preignition ignitio...

Page 47: ...gure 28 Output fuel valve V3 pilot valve X7 02 Outputs for connection of the gas or oil valves depending on the selected type of fuel train refer to chapter Sequence diagrams 7 4 6 Output safety valve type SI X6 03 LMV Bild 390e 1109 X6 03 Safety valve Protective earth PE Figure 29 Output safety valve X6 03 Output for connection of an oil valve or safety valve for liquefied gas The output is conne...

Page 48: ...as Time to respond to pressure faults in the first and second safety time 230 Gas Interval 1 231 Gas Second safety time 232 Gas Interval 2 233 Gas Afterburn time 234 Gas Postpurge time no extraneous light test 242 Gas Valve proving test space evacuating 243 Gas Valve proving test time atmospheric pressure 244 Gas Valve proving test space filling 245 Gas Valve proving test time gas pressure 246 Gas...

Page 49: ...shutdown No Parameter 236 Gas Input pressure switch min 1 pressure switch min before fuel valve V1 default setting 2 valve proving between fuel valve V1 and fuel valve V2 via pressure switch min 3 pressure switch min after fuel valve V2 237 Gas Input pressure switch max POC 1 pressure switch max 2 POC 3 pressure switch valve proving 4 additional speed dependent air pressure switch 241 Gas Executio...

Page 50: ...he gas inlet pressure Patm in mbar Absolute air pressure 1013 mbar normal pressure V in l Volume between the valves test volume including valve volume and pilot pipe if present Gp1 mod tTest in s Test time 7 5 2 1 Valve proving with separate pressure switch X9 04 P LT P LT Bild 410e 1010 P min Figure 1 Valve proving with separate pressure switch Step 1 t80 evacuation of test space Gas valve on the...

Page 51: ...h min gas the impact on the program sequence is as follows see Sequence diagram G a Valve proving on startup In place of sampling pressure switch min gas gas shortage test in phase 22 it is sampled during the time valve proving is performed at the end of the filling time b Valve proving on shutdown deactivated Pressure switch min gas is sampled at the end of preignition For that purpose a new phas...

Page 52: ...afety relay fan are deenergized but lockout does not yet take place The alarm relay is not yet activated If possible or permitted safety checks or repetition counter checks are made whose results decide on the transition to Lockout phase or Standby The duration of the safety phase is dynamic depending on the extent of testing the maximum time being 30 seconds This process is aimed primarily at avo...

Page 53: ...the unit is in the lockout position Longer or shorter pushes on the button do not produce a reset so that the LMV27 maintains the lockout position Error code Diagnostic code Meaning for the LMV27 167 2 Manual lockout by the AZL2 2 Resetting by pressing the button by the Reset connection terminal on the LMV27 X8 04 pin 1 If the unit is in the lockout position a reset can be made by pressing the but...

Page 54: ...ly be distinguished via the display on the AZL2 Start preventions are displayed as Err lockouts as Loc Note If the reset contact X8 04 Pin 1 on the LMV27 is activated during a startup prevention the LMV27 will be manually locked The time from occurrence of start prevention to indication by the alarm contact equals the time to the display on the AZL2 7 5 3 3 Possible start preventions On the normal...

Page 55: ...ckout Functions with adjustable repetition counter No Parameter 194 Repetition limit no flame at the end of safety time 1 no repetition 2 4 1 3 repetitions Recharging time Entering into operation 196 Repetition limit air pressure failure 1 no repetition 2 1 repetition 3 2 repetitions Recharging time End of Shutdown phase 215 Repetition limit safety loop 1 no repetition 2 15 1 14 number of repetiti...

Page 56: ...nter limits are changed the actual counter is recharged only when the associated recharging time is reached After power on or after a reset Note If immediate recharging shall be enforced the LMV27 can be manually locked and then reset Functions with fixed repetition counters These counters cannot be set Meaning Settings Basic setting Number of repetitions in the event of error Relay Relay control ...

Page 57: ...vated per parameter No Parameter 222 Gas Prepurging 1 active 0 inactive When prepurging is activated it is performed in accordance with the adjusted prepurge time If not activated it is nevertheless performed if one or several of the following conditions apply Alterable lockout position After an off time of 24 hours In the event of a power failure power on In the event of shutdown due to an interr...

Page 58: ...een fuel valve V1 and fuel valve V2 via pressure switch min Standard valve proving parameter 236 1 If the gas pressure is too low startup will be aborted in phase 22 No Parameter 236 Gas Input pressure switch min 1 pressure switch min before fuel valve V1 default setting 246 Gas Gas shortage waiting time If gas shortage occurs with the last of the parameterized number of start attempts the system ...

Page 59: ...terval 2 phase 52 The Program stop function is maintained until manually deactivated If the LMV27 halts at one of the program stops a message appears on the display of the AZL2 P V h min s Bild 160 0807 P V h min s Bild 159 0807 Figure 33 Message in the case of program stop Example c 204 alternating with d 24 corresponds to a program stop in the prepurge position 7 5 3 8 Forced intermittent operat...

Page 60: ... in all phases For that purpose the fan motor contactor is to be connected to X3 05 pin 3 tapped after the unit fuse and the safety loop For checking the air pressure switch a pressure switch relief valve must be connected to fan motor contactor X3 05 pin 1 When output X3 05 pin 1 is activated the relief valve diverts the fan pressure to the air pressure switch and when deactivated ensures that no...

Page 61: ...s of flame is detected Then the required time is displayed in the form of diagnostic code C 7 loss of flame The resolution is 0 2 seconds Example When the display reads C 7 D 10 the time required from valve shutdown to detection of loss of flame is 2 seconds D 10 means 10 x 0 2 2 seconds When the test is successfully completed parameter 124 is reset to 0 If unsuccessful a negative value is deliver...

Page 62: ...D release contact cannot be controlled as the alarm relay of the LMV27 cuts off the power supply to the outputs With the Alarm in the event of start prevention function an external circuit that may be present for controlling the fan VSD release contact for postpurging in the lockout position is activated via start prevention in standby mode LMV Bild 429e 0913 X3 05 K1 N K2 N K3 N K2 K3 K1 L Fan no...

Page 63: ...n G Program P max P min P LT Figure 36 Gas direct ignition 1 1 SV V1 V2 Program Gp1 Gas pilot PV Figure 37 Gas pilot ignition 1 SV P max SA V2 Program Gp2 Gas pilot P min PV V1 P LT 1 1 Figure 38 Gas pilot ignition 2 Gas direct ignition Operating mode 1 7 14 19 28 Gas pilot ignition 1 Operating mode 2 8 15 20 Gas pilot ignition 2 Operating mode 3 9 16 21 29 ...

Page 64: ...d for fuel trains Not used 1 1 For the valve proving function the pressure switch min is located between the fuel valve V1 V2 LO Light oil No Normally Open P LT Valve proving Pmax Pressure switch max Pmin Pressure switch min PV Pilot valve SA Actuator SV Safety valve outdoors TSAx Safety time V Fuel valve Figure 39 Gas trains fuel valve control Fuel valve control ...

Page 65: ...ogram Figure 40 Light oil direct ignition 1 stage 2 stage burner V1 V2 7541s05e 1007 P min LO Program Figure 41 Light oil direct ignition 2 stage 3 stage burner V1 V2 7541s06e 1007 P min V3 LO Program Figure 42 Light oil direct ignition 3 stage Light oil direct ignition multistage Operating mode 5 17 Operating mode 5 17 Operating mode 6 18 ...

Page 66: ...MIN Air damper position Stage operation Figure 43 Light oil direct ignition stage fuel valve control Legend for fuel trains LO Light oil No Normally Open LK Air damper P LT Valve proving Pmax Pressure switch max Pmin Pressure switch min PV Pilot valve SA Actuator SV Safety valve outdoors TSAx Safety time V Fuel valve Z Ignition Fuel valve control ...

Page 67: ...O Program Figure 45 Light oil direct ignition modulation Light oil transformer for direct ignition LO Operation Bild 421e 1013 Figure 46 Light oil direct ignition fuel valve control Legend for fuel trains 1 Series connection of two DC 115 V valves LO Light oil No Normally Open LK Air damper P LT Valve proving Pmax Pressure switch max Pmin Pressure switch min PV Pilot valve SA Actuator SV Safety va...

Page 68: ...in V2 Figure 48 Light oil direct ignition modulating with shutdown facility for adjustable head Light oil transformer for direct ignition LO 2V Figure 49 Light oil direct ignition fuel valve control Legend for fuel trains 1 Series connection of two DC 115 V valves LO Light oil No Normally Open LK Air damper P LT Valve proving Pmax Pressure switch max Pmin Pressure switch min PV Pilot valve SA Actu...

Page 69: ... gas pilot ignition Legend for fuel trains LO Light oil No Normally Open LK Air damper P LT Valve proving Pmax Pressure switch max Pmin Pressure switch min PV Pilot valve SA Actuator SV Safety valve outdoors TSAx Safety time V Fuel valve Z Ignition Figure 51 Light oil with gas pilot ignition fuel valve control Light oil with gas pilot ignition Operating mode 3 9 16 21 Operating mode 10 11 Fuel val...

Page 70: ...2 TSA1 TSA2 Operation Bild 313e 0114 Figure 53 Light oil with gas pilot ignition fuel valve control Legend for fuel trains LO Light oil No Normally Open LK Air damper P LT Valve proving Pmax Pressure switch max Pmin Pressure switch min PV Pilot valve SA Actuator SV Safety valve outdoors TSAx Safety time V Fuel valve Z Ignition Light oil with gas pilot ignition with 2 fuel valves Operating mode 3 9...

Page 71: ...irect ignition G G mod G mod pneu Fuel Air R ON Function Inputs Function Outputs RAST plug Pin number RAST plug Pin number M 0 0 t1 p P P LP Z AL V1 V2 5 s 5 s 30 s POC X3 04 Pin 1 2 X5 03 Pin 1 4 X10 05 Pin 2 Pin 3 4 X10 06 Pin 1 2 X3 02 Pin 1 2 X5 01 Pin 2 3 X5 02 Pin 2 3 X5 02 Pin 2 3 X3 05 Pin 1 X4 02 Pin 2 3 X6 03 Pin 2 3 X8 02 Pin 1 3 X7 01 Pin 2 3 X7 02 Pin 2 3 X3 05 Pin 2 X54 X53 P P X9 04...

Page 72: ...plug Pin number RAST plug Pin number M 0 0 t1 p P P LP Z AL V1 V2 5 s 5 s 30 s POC X3 04 Pin 1 2 X5 03 Pin 1 4 X10 05 Pin 2 Pin 3 4 X10 06 Pin 1 2 X3 02 Pin 1 2 X5 01 Pin 2 3 X5 02 Pin 2 3 X5 02 Pin 2 3 X3 05 Pin 1 X4 02 Pin 2 3 X6 03 Pin 2 3 X8 02 Pin 1 3 X7 01 Pin 2 3 X7 02 Pin 2 3 X3 05 Pin 2 X54 X53 P P X9 04 Pin 2 3 X5 01 Pin 2 3 Figure 55 Program for gas pilot ignition Gp1 Gp1 mod Gp1 mod pn...

Page 73: ...plug Pin number RAST plug Pin number M 0 0 t1 p P P LP Z AL V1 V2 5 s 5 s 30 s POC X3 04 Pin 1 2 X5 03 Pin 1 4 X10 05 Pin 2 Pin 3 4 X10 06 Pin 1 2 X3 02 Pin 1 2 X5 01 Pin 2 3 X5 02 Pin 2 3 X5 02 Pin 2 3 X3 05 Pin 1 X4 02 Pin 2 3 X6 03 Pin 2 3 X8 02 Pin 1 3 X7 01 Pin 2 3 X7 02 Pin 2 3 X3 05 Pin 2 X54 X53 P P X9 04 Pin 2 3 X5 01 Pin 2 3 Figure 56 Program for gas pilot ignition Gp2 Gp2 mod Gp2 mod pn...

Page 74: ...V1 V2 5 s 5 s 30 s POC Function Inputs Function Outputs RAST plug Pin number RAST plug Pin number X3 04 Pin 1 2 X5 03 Pin 1 4 X10 05 Pin 2 Pin 3 4 X10 06 Pin 1 2 X3 02 Pin 1 2 X5 01 Pin 2 3 X5 02 Pin 2 3 X5 02 Pin 2 3 X3 05 Pin 1 X4 02 Pin 2 3 X6 03 Pin 2 3 X8 02 Pin 1 3 X7 01 Pin 2 3 X7 02 Pin 2 3 X3 05 Pin 2 X54 X53 Figure 57 Program for light oil direct ignition Lo Lo mod Lo 2 stage Lo 3 stage ...

Page 75: ...30 s POC X3 04 pin 1 2 X5 03 pin 1 4 X10 05 pin 2 pin 3 4 X10 06 pin 1 2 X3 02 pin 1 2 X5 01 pin 2 3 X5 02 pin 2 3 X5 02 pin 2 3 X3 05 pin 1 X4 02 pin 2 3 X6 03 pin 2 3 X8 02 pin 1 3 X7 01 pin 2 3 X7 02 pin 2 3 X3 05 pin 2 X54 X53 Fuel Air Function inputs Function outputs RAST plug pin number RAST plug pin number Bild 20e 1013 Figure 58 Program light oil pilot ignition LoGp LoGp mod LoGp 2 stage ...

Page 76: ... switch min 40 Fuel valve ON 42 Ignition OFF 44 Interval 1 50 Second safety time 52 Interval 2 60 Operation 1 stationary 62 Operation 2 air damper low fire position 70 Afterburn time 71 Fan postpurge speed 72 Air damper Rated load position 74 Postpurge time 78 Postpurge time 79 Fan standby speed 80 Evacuation of test space 81 Test time atmospheric pressure 82 Filling of test space 83 Test time gas...

Page 77: ...ith fuel train Lo and 2 fuel valves 12 Parameter 223 Repetition limit value gas pressure switch min in connection with gas shortage program parameter 246 phase 90 1 no repetition 2 15 1 14 number of repetitions 16 constant repetition 13 Maximum drop in response time for air pressure switch 14 Alternative to valve proving 15 Alternative to pressure switch max or POC Abbreviations AL Alarm FS Flame ...

Page 78: ... to travel within the permissible position range but is always driven to the home position must be in the home position for phase changes 0 10 Position as supplied 0 90 100 Actuator fully open 90 Input output signal 1 ON Input output signal 0 OFF Input permissible signal 1 ON or 0 OFF Alternative to pressure switch max Only with valve proving via pressure switch min ...

Page 79: ...ain modulating multistage actuators etc undefined delete curves 1 G mod 2 Gp1 mod 3 Gp2 mod 4 Lo mod 5 Lo 2 stage 6 Lo 3 stage 7 G mod pneu 8 Gp1 mod pneu 9 Gp2 mod pneu 10 LoGp mod 11 LoGp 2 stage 12 Lo mod 2 fuel valves 13 LoGp mod 2 fuel valves 14 G mod pneu without actuator 15 Gp1 mod pneu without actuator 16 Gp2 mod pneu without actuator 17 Lo 2 stage without actuator 18 Lo 3 stage without ac...

Page 80: ...io control 13 LoGp mod 2 fuel valves Modulating electronic Oil pilot ignition 2 fuel valves electronic modulating ratio control 14 G mod pneu without actuator Modulating pneumatic Gas direct ignition without actuator pneumatic modulating ratio control 15 Gp1 mod pneu without actuator Modulating pneumatic Gas pilot ignition 1 without actuator pneumatic modulating ratio control 16 Gp2 mod pneu witho...

Page 81: ...hout circulation control 3 stage Heavy oil direct ignition without circulation control electronic 3 stage ratio control 28 G mod mech only air actuator Modulating mechanical Gas direct ignition only air actuator mechanical modulating ratio control 29 Gp2 mod mech only air actuator Modulating mechanical Gas pilot ignition 2 only air actuator mechanical modulating ratio control Selected operating mo...

Page 82: ...operation X5 03 OPEN pin 3 CLOSE pin 2 If input Open is active the burner s output is increased If input Close is active the burner s output is decreased If none of the inputs is active the burner s output is not changed The rate of integration is 32 seconds for changing the output from low fire 20 to high fire 100 or vice versa parameter 544 that means a burner output from 100 to 20 Output integr...

Page 83: ... the burner switches to Stage 1 If input Stage 2 becomes active the burner switches to the second stage If input Stage 3 becomes active the burner switches to the third stage In that case input Stage 2 can be active or inactive The third stage can only be activated with 3 stage operation LMV Bild 317e 0913 X5 03 L ON OFF Load controller LR OPEN Load controller LR CLOSED Load controller LR ON OFF F...

Page 84: ...ontroller LR CLOSED Load controller LR ON OFF Figure 62 Shifting multistage operation OPEN pin 3 CLOSE pin 2 Parameter 205 is needed to interchange usage of the load controller contacts for multistage operation In that case the burner switches to the third stage when input Stage 2 is active load controller OPEN This has no impact on modulating operation No Parameter 205 Function Load controller co...

Page 85: ...tion it delivers the output set via parameter 148 The time that elapses until communication breakdown is detected can be set via parameter 142 No Parameter 142 Setback time in the event of communication breakdown Setting values 0 deactivate 1 7200 s 148 Predefined output in the event of communication breakdown with building automation Setting values For modulating operation the setting range is as...

Page 86: ...vation of Manually off in operation To activate Manually OFF first run the system to the minimum output limit Then press the F button for at least 1 second and press the button Manually OFF is activated by releasing and pressing again the F button and pressing the button Caution Manually OFF must not be used just to put a burner out of operation when doing mounting work or when the burner is not r...

Page 87: ...3 pin 2 pin 3 The active load controller source can be read out via parameter 942 No Parameter 942 Active load source 1 output during curve settings 2 manual output 3 default output via building automation 4 default output via analog input 5 external load controller via contacts 9 6 1 Emergency operation with several load controller sources By making use of the prioritization described above it is...

Page 88: ...ontacts is not used it is possible to change to manual output via the switch for switching from automatic to manual operation this cuts the connection to the load controller In that case the LMV27 switches to the external load controller via contact A switch for Open Close or stage 2 stage 3 can then be connected to the load controller s terminals ...

Page 89: ...ermines the position to be approached 10 2 1Traveling speed The running speed of the actuators is fixed at 5 seconds for a positioning angle of 90 for SQM33 4 SQM33 5 and SQN1 The speed is 10 seconds for a positioning angle of 90 for SQM33 6 The SQM33 7 requires 17 seconds for a positioning angle of 90 The setting also applies to the running position refer to chapter Running position 10 2 2 Home p...

Page 90: ... to the ignition position 38 The position is set via curve parameterization under P0 In modulating operation this point is assigned to an output of 10 10 2 5 Postpurging This position is approached in phase Traveling to postpurging 72 The position can be set via the following parameters Parameter Actuator 501 02 Postpurge position fuel actuator 502 02 Postpurge position air actuator ...

Page 91: ...tuator in the second 200 ms 10 3 1 Definition of curves The air fuel ratio curves are defined by 10 curvepoints that are fixed and distributed across the output range The following assignment applies Curvepoint Output Meaning P0 10 Point of ignition not approached in the operating position P1 20 Low fire P2 30 P3 40 P4 50 P5 60 P6 70 P7 80 P8 90 P9 100 High fire The actuator positions can be set w...

Page 92: ...maximum position of 90 to be reached Maximum difference between 2 curve points No Parameter 544 Ramp modulating The setting also acts outside the running position refer to chapter Running speed Error code Diagnostic code Meaning for the LMV27 84 Bit 1 Valency 2 3 Fuel actuator Curve too steep in terms of ramp speed Bit 2 Valency 4 7 Air actuator Curve too steep in terms of ramp speed The setting a...

Page 93: ...tion range shall be further restricted from 20 to 100 against the defined curve 2 parameters are available to define a new low fire and high fire position No Parameter 545 Lower output limit undefined 20 546 Upper output limit undefined 100 20 low fire Lower output limit P545 Upper output limit P546 100 high fire Air Fuel Figure 64 Restriction of modulation range ...

Page 94: ...nsures that the LMV27 maintains the output set by the user thus facilitating troublefree setting of the minimum maximum output Benefits The current output always corresponds to the minimum maximum output presently parameterized or to the system output of the curve settings made last which means that the output can be ascertained accurately and free from interference The load sources of low priorit...

Page 95: ...When the angle exceeds this point the fuel valve for the second stage is switched on V1 P2_d Presetting of point P2 with no approach V1 P2 Stage 2 V2 P2of Switch off point stage 2 When the angle falls below this point the fuel valve for the second stage is switched off V2 P3on Switch on point stage 3 When the angle exceeds this point the fuel valve for the third stage is switched on V2 P3_d Preset...

Page 96: ... does not reach the operating or switch on switch off points at the same time The valves are switched on off only after both actuators have reached their correct positions When parameterizing the curves the switch on points can also be approached in a stationary manner In addition when setting the curve via P2_d P3_d curvepoint P2 P3 can be readjusted without traveling to it In that case the LMV27...

Page 97: ... To safeguard against accidental or unauthorized transfer of parameters from the parameter backup of the ACS410 to the LMV27 the OEM burner or boiler manufacturer must enter an individual burner identification for every burner Only when this requirement is satisfied does the LMV27 make certain that the ACS410 does not transfer a parameter set from a plant with unsuited and possibly dangerous param...

Page 98: ...ND ACT1_OUT_A ACT1_OUT_B ACT1_IN_A ACT1_IN_B Figure 67 Air actuator X53 11 1 Function principle The actuators are driven by stepper motors The resolution reached when making 1 positioning step is 0 1 The running speed of the actuators is fixed at 5 seconds for a positioning angle of 90 for SQM33 4 SQM33 5 and SQN1 The speed is 10 seconds for a positioning angle of 90 for SQM33 6 The SQM33 7 requir...

Page 99: ... LMV27 switches to the safety phase Ph01 enabling the actuators with detected position errors to be referenced During the following phase 10 the only actuators referenced are those that were not referenced before in the safety phase phase 01 The position of the reference point can be selected depending on the type of burner either the CLOSE position 0 or the OPEN position 90 When using actuators S...

Page 100: ...x 1 air Greatest position error where an error is securely detected error detection band parameter 606 0 6 up to parameter 606 611 Type of reference Index 0 fuel Index 1 air Setting values 0 standard 1 range stop in the usable range 2 internal range stop SQN1 3 both 613 Type of actuator Index 0 fuel Index 1 air Setting values 0 5 s 90 1 Nm 1 2 Nm 3 Nm 1 10 s 90 6 Nm 2 17 s 90 10 Nm Application not...

Page 101: ...ctuator first travels to the starting point Note Always select reference travel type 2 for SQN13 and SQN14 No Parameter Setting for actuator SQM33 SQN13 SQN14 611 Type of referencing Index 0 Fuel 0 2 2 Index 1 Air 0 2 2 No Parameter Setting for actuator type SQM33 611 Type of referencing Index 0 fuel 1 Index 1 air 1 To prevent the actuator from running against a mechanical stop during referencing ...

Page 102: ... is parameterized in the OPEN position referencing takes place in a mirror symmetrical manner In that case the actuator first travels into the working range toward the OPEN position Then it crosses the reference mark and travels to a position representing maximum 110 6 then back to the inner ramp of the reference mark 9 0 u s a b l e r a n g e Close 0 0 6 Reference range Close Range stop Close Ref...

Page 103: ...tting values 0 counterclockwise 1 clockwise exclusively for SQM3 602 01 Actuator s direction of rotation Index 1 air Setting values 0 counterclockwise 1 clockwise exclusively for SQM3 0 0 Counterclockwise Clockwise Figure 69 Direction of rotation example SQM3 The direction of rotation of the SQN1 actuators depends on the version SQN13 Direction of rotation Left SQN14 Direction of rotation Right No...

Page 104: ...here an error is securely detected default setting parameter 606 1 7 The presetting of 1 7 default setting parameter 606 is suited for use with actuators type SQN1 and SQM3 Note When using SQN1 actuators equipped with plastic gear trains we recommend to change the preset values as follows Product no Value SQN13 14 1 7 SQN14 14 1 7 SQN13 17 2 2 SQN14 17 2 2 When referencing under output conditions ...

Page 105: ... detected Error detection band parameter 606 0 6 up to parameter 606 11 7 Forced travel There are errors in the actuators feedback unit which can only be detected in connection with position changes To be able to also detect such errors when maintaining the same position for longer periods of time travel is enforced when for more than 50 minutes an actuator moves no more than 2 8 With forced trave...

Page 106: ...ne of the actuators 11 9 1 Proposal for implementation Parameterize referencing of the air damper in the CLOSE position Parameterize referencing of the fuel damper in the OPEN position Unnecessary travel can be avoided by defining a rest position of 90 for the fuel damper Mechanical stop at the air damper in the range between 90 and 108 5 and or mechanical stop at the fuel damper in the range betw...

Page 107: ...0 V the voltage values with modulating 2 stage and 3 stage operation change refer to chapters Modulating operation chapter 2 stage operation and chapter 3 stage operation Conversion New value initial value 0 8 2 Example Initially 2 V 2 0 8 2 3 6 V Initially 5 V 5 0 8 2 6 V No Parameter 645 Configuration of analog output 0 DC 0 10 V 1 DC 2 10 V 2 DC 0 2 10 V 12 1 Safe separation of mains voltage an...

Page 108: ...P0 10 Low fire DC 2 V P1 20 High fire DC 10 V P9 100 The values between low fire and high fire are interpolated in a linear manner 12 3 2 stage operation Actual value Voltage Curvepoint Display output value Off DC 0 V Off Stage 1 DC 5 V P1 P1 Stage 2 DC 10 V P2 P2 12 4 3 stage operation Actual value Voltage Curvepoint Display output value Off DC 0 V Off Stage 1 DC 3 V P1 P1 Stage 2 DC 5 V P2 P2 St...

Page 109: ...Pulse frequency at maximum fuel throughput must be below 300 Hz 13 1 2 Configuration of pulses per volume unit Depending on the type of fuel meter used the number of pulses supplied by it per m or l fuel must be parameterized A maximum of 400 pulses per volume unit can be preset The correct amount of fuel is acquired only when this parameter is set When the parameter is 0 the fuel meter stops No P...

Page 110: ...oothed to improve the settling process With fuel throughput at its maximum the maximum frequency is 300 Hz 13 2 1 Configuration Calculation of fuel throughput is configured based on the pulse valency of the connected fuel meter No Parameter 128 Fuel meter Pulse valency pulses volume unit When the pulse valency is set to 0 00 the display shows 0 throughput 13 2 2 Reading out the fuel throughput The...

Page 111: ... 1 1 1 1 1 1 1 1 1 7541a51e 0718 VSD X74 X64 1 1 COM X92 FUEL X54 AIR X53 BCI X56 1 1 1 DC 0 1 10 V Signal reference DC 24 V external Load output 1 1 ACT1_IN_B ACT1_IN_A ACT1_OUT_B ACT1_OUT_A GND UAC_SA Actuator Air 1 ACT0_IN_B ACT0_IN_A ACT0_OUT_B ACT0_OUT_A GND UAC_SA Actuator Fuel 1 Signal reference GND RxD1 TxD1 DC 5 V BA 1 Signal reference GND RxD0 TxD0 DC 5 V Display BCI 2 3 7541a52e 0807 Fi...

Page 112: ...sing the COM X92 port and a special interface with galvanic separation and physical bus level adaptation This port can be used for connection of a LMV27 with Modbus depending on the configuration made OCI412 10 RS485 Modbus LMV COM X92 Figure 73 Connection via interface COM 92 to superposed systems Note Breakdown of bus communication If the LMV27 detects a breakdown of bus communication the BAC sy...

Page 113: ...utomation system in the event of communication breakdown Default setting Invalid The factory settings of the parameters are shown on the Parameter list Note For a detailed description of parameter 148 refer to chapter Default output via building automation 16 2 Modbus With this type of bus protocol the LMV27 operates as a slave on the Modbus and the transmission mode used is RTU Remote Terminal Un...

Page 114: ... Note For notes on operation and commissioning refer to chapter Operation X56 OCI410 USB 7541z299 0807 LMV27 100 PC Figure 74 Communication with display BCI RJ jack X56 LMV Bild 340 0309 BCI X56 CO Vx TXD0 RXD0 GND Figure 75 Display input BCI RJ11 jack X56 If communication between the LMV27 and the ACS410 70 s has broken down the password level is reset to Info Service Caution Interruption of comm...

Page 115: ...ode Meaning for the LMV27 200 OFF LMV27 error free 18 1 Error classes The errors are subdivided into error classes depending on the severity of the switch off response The current error shows all classes Only the errors of the most important classes are included in the history Error class Priority Meaning History 0 Highest Lockout 1 Safety shutdown with software reset 2 Undervoltage 3 Safety shutd...

Page 116: ...ccurred 702 01 06 Latest error in the history 725 01 06 Oldest error in the history No Parameter 166 Total number of startups Both the service menu and the parameter setting menu show the error history The display on the service menu can be deleted in a way that the only errors shown are those that occurred after the deletion The error history on the parameter setting menu cannot be deleted For th...

Page 117: ... are observed The burner management system covered by the present Basic Documentation may only be used as specified and only in connection with the appropriate burner and heating plant The burner management system with its AZL2 and the associated heating control system may only be installed and commissioned by authorized technical personnel The AZL2 may only be used in dry spaces Do not use AZL2 o...

Page 118: ...ns A and F Parameter function For changing to parameter setting mode P press simultaneously F and A plus or reset Info and Enter button For navigating in info or service mode Selection symbol flashing press button for 1 s For changing to a lower menu level press button for 1 3 s For changing to a higher menu level press button for 3 8 s For changing the operating mode press button for 8 s Enter in...

Page 119: ...tor controlled Oil preheater on Heat request from controllers Ignition controlled Valve controlled Flame present Fault status message Unit of current display Bild 2e 0807 Figure 77 Meaning of display 21 3 Brightness of display Only available with backlit LCD The function of the backlit display is dependent on the type of LMV27 The brightness of the display can be adjusted from 0 100 using paramete...

Page 120: ...et simultaneously with any other button The LMV27 switches instantly to the lockout position irrespective of the operating position The display shows the fault status message Refer to chapter Error code list Display Loc 167 The reset must be carried out as follows reset 1 s When reset is pressed for 1 second rESEt appears on the display When the button is released the LMV27 is reset ...

Page 121: ... 20 0 F 1 s P V h min s Bild 5 0707 Press F for 1 s The display shows LoAd the current output flashes F and or P V h min s Bild 6 0707 Press or to adjust the required manual output Example oP 23 0 P V h min s Bild 7 0707 Release F The current manual output flashes indicating that manual control is activated ESC P V h min s Bild 8 0707 Press ESC for 3 s to return to automatic mode The output no lon...

Page 122: ...es are set leads to lockout Error code Diagnostic code Meaning for the LMV27 167 8 Manual locking via AZL2 Timeout communication interruption 21 6 Backup restore Using the AZL2 the settings made on the LMV27 can be stored backup and then transferred back to the LMV27 at a later point in time Creating a backup data set No Parameter 050 0 Index 0 Creation of backup The following parameters can be us...

Page 123: ...eter 050 flashes index 00 and value 0 do not reset 7548z358 1009 Press resetto select parameter bAC_UP Display Parameter bAC_UP reset Press reset to select the backup process Display Value 0 Press to shift the value in change mode 1 position to the left Display Value 1 flashes Note To detect potential display errors the value is displayed 1 place shifted to the left reset Press reset to activate t...

Page 124: ... the program 0 appears on the display indicating the end of the backup process Display 0 Note If an error occurs during the backup process a negative value is displayed For error diagnostics the cause of the error can be determined from the diagnostic code of error message 137 see Error code list Caution We recommend to make a backup whenever a parameter is changed ...

Page 125: ...050 flashes index 00 and value 0 do not reset 7548z358 1009 Press reset to go to parameter bAC_UP Display Parameter bAC_UP 7548z 359 1009 Press to go to the rEStorE function Display Parameter rEStorE reset Press reset to select the restore process Display Value 0 Press to shift the value in change mode 1 position to the left Display Value 1 flashes Note To detect potential display errors the value...

Page 126: ...are restored If not the restore process is aborted In case of abortion or if an error occurs during the restore process the display shows a negative value For error diagnostics the cause of the error can be determined from the diagnostic code of error message 137 see Error code list When the restore process is successfully completed value 0 appears on the display The LMV27 is supplied with undefin...

Page 127: ... standby mode Note OFF flashes when the Manual OFF function the manual output or load controller OFF is activated 22 1 2 Display during startup shutdown 22 1 2 1 Display of program phases P V h min s Bild 10 0707 The LMV27 is in Phase 22 The load controller calls for heat The bar below the symbol appears The individual program phases and controlled components are displayed in accordance with the p...

Page 128: ...n fuel valve V1 and fuel valve V2 Ph40 1st safety time ignition transformer ON Ph42 1st safety time ignition transformer OFF Ph44 Interval 1 Ph50 2nd safety time Ph52 Interval 2 Ph60 Operation 1 stationary Ph62 Maximum time low fire operation 2 preparing for shutdown traveling to low fire Ph70 Afterburn time Ph71 Run the fan to postpurge speed Ph72 Traveling to the postpurge position Ph74 Postpurg...

Page 129: ... Modulating mode Current output in P V h min s Bild 13 0707 Display oP P0 stands for Ignition point Multistage mode Current heating stage P V h min s Bild 14 0707 Display oP P1 stands for Stage 1 Multistage mode Current heating stage P V h min s Bild 15 0707 Display oP P2 stands for Stage 2 Multistage mode Current heating stage P V h min s Bild 16 0707 Display oP P3 stands for Stage 3 Multistage m...

Page 130: ...3 P V h min s Bild 18 0707 22 1 4 2 Reset reset 1 3 s When pressing reset for 1 3 s rESEt appears on the display When the button is released the LMV27 is reseted If the reset button is pressed for a time other than the time indicated above a change to the previous menu is made Exception If an error occurred while setting the curve a change back to the parameter setting level is made 22 1 4 3 Activ...

Page 131: ...d to shutdown The display shows current error code c alternating with diagnostic code d Press reset to return to the display of phases Example Error code 111 diagnostic ode 0 Note For meaning of the error and diagnostic codes refer to chapter Error code list When an error has been acknowledged it can still be read out from the error history 22 1 4 6 Start prevention P V h min s Bild 196 0208 A non...

Page 132: ...ls The various levels can be accessed via different button combinations The parameter level can only be accessed via password Normal display 1 s 1 s Change to normal display 3 s 8 s 3 s 8 s or or automatic return after timeout of menu operation parameter 127 Info level Service level Parameter level 8 s reset reset reset Figure 78 Assignment of levels ...

Page 133: ...er Parameter value Figure 79 Info level Note No change of values on the info level If the display shows _ _ below the parameter value the value may consist of more than 5 digits The value is displayed by pressing reset for 1 s and 3 s Press reset for 3 s or press ESC to return to the selection of the parameter number parameter no flashes No Parameter Info level 167 Fuel volume resettable m l ft ga...

Page 134: ...Example 102 _ _ reset reset 1 3 s P V h min s Bild 30 0707 Pressing the button reset 1 3 seconds and releasing it when _ _ flashes displays the identification date creation date of the program sequence DD MM YY Example Identification date 03 11 05 reset or ESC P V h min s Bild 29 0707 Press the reset or button to return to the display of parameters To the next parameter 24 2 2 Identification numbe...

Page 135: ... on the left characters _ _ on the right Example 113 _ _ reset 1 3 s P V h min s Bild 33 0707 Press reset for 1 3 s to show the burner s identification Default setting Example 3 reset or ESC P V h min s Bild 32 0707 Press reset or ESC to return to the display of parameters The burner s identification can be set on the parameter level To the next parameter Back to the previous parameter ...

Page 136: ... _ on the right since display of the number of startups may comprise more than 5 digits Example Parameter 164 _ _ reset 1 3 s P V h min s Bild 35 0707 Pressing the button reset 1 3 seconds and releasing it when _ _ flashes displays the number of startups can be reset Example 36 reset or ESC P V h min s Bild 34 0707 Press reset or ESC to show parameter 164 flashing again The number of startups can ...

Page 137: ...et or ESC P V h min s Bild 36 0707 Press reset or ESC to return to the display of parameters To the next parameter Back to the previous parameter 24 2 6 End of info level P V h min s Bild 38 0707 When this display appears you have reached the end of the info level The display shows End flashing To the start of the info level or reset 1 s To end of info level ESC or reset 3 s P V h min s Bild 22 07...

Page 138: ...may consist of more than 5 digits Press reset for 1 s and 3 s to display the value Press reset for 3 s or ESC to return to the selection of the parameter number parameter number flashes 25 1 Display of service level reset P V h min s Bild 21 0707 Press reset for 3 s until SEr appears When releasing reset you are on the service level No Parameter Service level 954 Flame intensity 960 Actual flow ra...

Page 139: ... 25 2 3 Intensity of flame P V h min s Bild 41 0707 The display shows parameter 954 flashing on the left On the right the flame s intensity is displayed as a percentage Example 954 0 0 To the next parameter or reset 1 s Back to the previous parameter Note Also refer to chapter Intensity of flame during curve settings 25 2 4 End of service level P V h min s Bild 38 0707 When this display appears yo...

Page 140: ...o ensure that safe burner operation is warranted The OEM which made the settings is always responsible for the parameters their settings and compliance of the respective application with the relevant national and international standards and safety regulations such as EN 267 EN 676 EN 746 2 EN 1643 etc Siemens its suppliers and other Group Companies of Siemens AG do not assume responsibility for sp...

Page 141: ...on VSD A F to display CodE When releasing the buttons 7 bars appear the first of which flashes or Press or to select a number or letter reset or Press reset to confirm the value The value entered changes to a minus sign The next bar starts flashing reset or Press or to select a number or letter reset After entry of the last character the password must be confirmed by pressing reset Press reset aga...

Page 142: ...6 Parameter level 17 12 2018 P V h min s Bild 48 0707 As a confirmation of correct entry PArA appears for maximum 2 seconds Note For entry of passwords or burner IDs the following numbers and letters can be used 1 A L 2 b n 3 C o 4 d P 5 E r 6 F S 7 G t 8 H u 9 I Y 0 J ...

Page 143: ... go to editing mode reset P V h min s Bild 50 0707 You are on the display for undefined burner identification 8 bars appear or P V h min s Bild 51 0707 Press or to select a number Example Number 3 flashes reset P V h min s Bild 52 0707 Press reset to confirm the value Make the entry number by number or P V h min s Bild 53 0707 Press or to select the next number Example Number 9 flashes reset reset...

Page 144: ...n LMV27 CC1P7541en 26 Parameter level 17 12 2018 P V h min s Bild 55 0707 The display no longer flashes Example Burner identification 9993 ESC P V h min s Bild 49 0707 Press ESC to return to the parameter level PArAmeter 113 for burner identification ...

Page 145: ...ter n for new appears flashing Proceed as described in chapter Entry of password and enter the new password 4 characters After entry of the last character the password must be confirmed by pressing reset reset Letter r for repeat appears flashing Proceed as described in chapter Entry of password and repeat entry of the new password After entry of the last character the password must be confirmed b...

Page 146: ...ed in chapter Entry of password and enter the new password 5 characters After entry of the last character the password must be confirmed by pressing reset reset Letter r for repeat appears flashing Proceed as described in chapter Entry of password and repeat entry of the new password After entry of the last character the password must be confirmed by pressing reset 7782z98 0416 SEt confirms that t...

Page 147: ...turer with the exception of those for the fuel train and for air fuel ratio control A description of parameter level 400 which is used for setting the fuel train and the fuel air ratio curve is given in chapter Fuel air ratio curves settings and commissioning VSD A F 1 s Press button combination to display 000 Int With select the parameter group 100 PArA With select the parameter group 200 PArA Pr...

Page 148: ...ntering the password Basic Unit Internal parameter password level Air fuel ratio control Actuator Error histery Process data Bild 388e 1109 reset reset reset reset reset reset reset reset Figure 81 Parameter level structure Note The following sections explain the operating philosophy behind the parameter levels using a number of examples Caution Pay special attention to chapter Safety notes on set...

Page 149: ... h min s Bild 64 0707 Press to select Program stop Display Parameter 208 flashes value 0 does not reset P V h min s Bild 65 0707 Press reset to go to editing mode Display Program stop time set Here Value 0 corresponding to program stop deactivated or P V h min s Bild 66 0707 Press or to select the required program stop time 0 deactivated 1 prepurge position phase 24 2 ignition position phase 36 3 ...

Page 150: ... 0707 Press ESC to return to the parameter level Display Parameter 208 flashes value 0 does not Note To detect potential display errors the value is displayed 1 place shifted to the right Display Value 2 ESC P V h min s Bild 69 0707 Press ESC to return to the parameter level PArAmeter 208 flashes value 2 does not ESC Press ESC to return to the parameter level PArAmeter 200 for LMV27 To the next pa...

Page 151: ...rating hours resettable P V h min s Bild 70 0707 PArAmeter level 100 for general reset Press reset to go to menu level 100 P V h min s Bild 71 0707 Press to select Operating hours resettable Display Parameter 162 flashes characters _ _ do not reset P V h min s Bild 72 0707 Press reset to go to editing mode Display 123457 or P V h min s Biod 73 0707 You can press or to set the number of operating h...

Page 152: ...to return to editing mode The value set will be adopted P V h min s Bild 74 0707 Press ESC to return to the parameter level Display Parameter 162 flashes characters _ _ do not Note To detect potential display errors the value is displayed 1 place shifted to the right Display Value 0 ESC P V h min s Bild 70 0707 Press ESC to return to the parameter level PArAmeter 100 for general ...

Page 153: ...Display Parameter 501 flashes index 00 and value 0 0 do not reset P V h min s Bild 77 0707 Press reset to go to the index Display Parameter 501 does not flash index 00 flashes value 0 0 does not or P V h min s Bild 78 0707 Press or to select the required index 00 home position 01 prepurge position 02 postpurge position Display Index 01 for prepurge position flashes value 0 0 does not reset P V h m...

Page 154: ...01 flashes value 0 0 has not changed and does not flash Note To detect potential display errors the value is displayed 1 place shifted to the right Display Value 1 0 ESC P V h min s Bild 82 0707 Press ESC to return to the index PArAmeter 501 does not flash index 01 flashes value 1 0 does not ESC P V h min s Bild 83 0707 Press ESC to return to the parameter level Display Parameter 501 flashes index...

Page 155: ...eset Press reset to go to the parameter level P V h min s Bild 85 0707 Press to select parameter 701 Display Parameter 701 flashes index 01 and value 201 do not reset P V h min s Bild 86 0707 Press reset to go to index 01 Display Parameter 701 does not flash index 01 flashes value 201 does not To the next index Back to the previous index P V h min s Bild 87 0707 Press to select the index 01 error ...

Page 156: ...P V h min s Bild 89 0707 Press ESC to return to the parameter level Display Parameter 701 flashes index 05 does not characters _ _ do not To the next older error P V h min s Bild 90 0707 Parameters cover the period of time back to the last error since history was deleted max to parameter 725 Example Parameter 725 index 01 error code 111 To the next parameter Back to the previous parameter P V h mi...

Page 157: ... reached the end of the error history Display End appears flashing ESC P V h min s Bild 93 0707 Press ESC to return to the parameter level HISt 700 for error history To the next parameter or reset 1 s Back to the previous parameter Note If you wish you can delete the error history via parameter 130 To delete the display set the parameter to 1 and then to 2 The error history is deleted when the par...

Page 158: ...ed LMV27 or a LMV27 whose operating mode has been reset or changed displays OFF UPr For initial commissioning change to the parameter level refer to chapter Operation The settings can then be made on parameter level 400 reset P V h min s Bild 94 0707 Press reset to select parameter 400 for initial commissioning and for setting air fuel ratio control reset P V h min s Bild 96 0707 Press reset to go...

Page 159: ...ulating pneumatic with pilot valve 2 without actuator Gp2 mod pneu without actuator 0 active 17 oil 2 stage without actuator Lo 2 stage without actuator 0 active 18 oil 3 stage without actuator Lo 3 stage without actuator 0 active 19 gas modulating only gas actuator G mod only gas actuator fuel active 20 gas modulating with pilot valve 1 only gas actuator Gp1 mod only gas actuator fuel active 21 g...

Page 160: ...with pilot valve Gp2 mod reset P V h min s Bild 161 0807 Press reset to save the selected setting ESC P V h min s Bild 99 0707 Press ESC to return to the parameter level To the next parameter For operating modes 1 4 7 10 12 16 and 19 22 refer to chapter Setting curvepoints P0 and P9 for modulating mode G mod Gp1 mod Gp2 mod and Lo mod For operating modes 5 6 11 17 und 18 refer to chapter Setting t...

Page 161: ...g F for ignition position P0 F and or P V h min s Bild 104 0707 Press simultaneously F and or to set ignition position P0 of the fuel damper Example 30 0 P V h min s Bild 105 0707 Release F The selected value will be adopted Example 30 0 A P V h min s Bild 106 0707 Keep A depressed You are now in setting P0 of air actuator A for ignition position P0 A and or P V h min s Bild 107 0707 Press simulta...

Page 162: ...90 To the next curvepoint Back to the previous curvepoint P V h min s Bild 113 0707 Press The display shows run identification of start for setting the curve parameters Note You now have the option of pressing reset to proceed with the warm settings see section Warm settings for modulating operation G mod Gp1 mod Gp2 mod and Lo mod or pressing ESC to proceed with the cold settings see section Cold...

Page 163: ...art prevention OFF UPr continues to be active until all points are set If required the gas pressure can be set at the high fire point In case the gas pressure is changed all points must be checked by traveling along the curve downward and if required must be readjusted P V h min s Bild 113 0707 Identification of start for setting the curve parameters reset When there is a request for heat Note If ...

Page 164: ...Ignition position P0 can only be set after symbol or is no longer highlighted For fuel keep F depressed for air A Press or to adjust the value When symbol or is no longer highlighted the next curvepoint P1 can be selected with P V h min s Bild 117 0707 Phase Traveling to ignition position P V h min s Bild 119 0707 Phase Preignition P V h min s Bild 120 0707 Phase 1st safety time ignition transform...

Page 165: ...curvepoint P1 can be selected with F or A and or P V h min s Bild 123 0707 Low flame position P1 can only be set when symbol or is no longer highlighted The value will be adopted from P0 For fuel keep F depressed for air A Press or to adjust the value When symbol or is no longer highlighted the next curvepoint P2 can be selected with To the next curvepoint Back to the previous curvepoint P V h min...

Page 166: ...ints P2 to P8 are automatically calculated as a straight line between P1 and P9 Example 1 gas modulating P0 P1 and P9 are set as described Curvepoint Value 1 fuel Value 2 air P0 30 0 22 0 P1 32 0 24 0 P9 80 0 90 0 P2 through P8 have automatically been calculated Curvepoint Value 1 fuel Value 2 air P2 38 0 32 3 P3 44 0 40 5 P4 50 0 48 8 P5 56 0 57 P6 62 0 65 3 P7 68 0 73 5 P8 74 0 81 8 ...

Page 167: ... ESC or all curvepoints can be run through in the reverse order If the gas pressure is changed all curvepoints must be checked and if required readjusted ESC P V h min s Bild 126 0707 The maximum capacity is displayed If the display shows the maximum capacity has not yet been specified The LMV27 can be run up to 100 You can press reset to go to editing mode enabling you to change the maximum capac...

Page 168: ... chapter Warm settings for modulating mode G mod Gp1 mod Gp2 mod and Lo mod Here only the air requires adjustment with A 26 11 6 Cold settings for G mod Gp1 mod Gp2 mod and Lo mod Note Refer to chapter Warm settings for modulating mode G mod Gp1 mod Gp2 mod and Lo mod With no flame however no actuator travel and no automatic operation after the settings have been made If run is shown in the displa...

Page 169: ...ng mode G mod Gp1 mod Gp2 mod and Lo mod With no flame however no actuator travel and no automatic operation after the settings have been made Here only the air requires adjustment with A If run is shown in the display the following must be observed P V h min s Bild 113 0707 Identification of start for setting the curve Note You now have the option of pressing ESC to continue with the cold setting...

Page 170: ...ctuator has been selected for editing F and or P V h min s Bild 131 0707 Keep F depressed and press or to adjust the fuel actuator In the case of warm settings the actuator follows directly the adjustments made The changes are saved P V h min s Bild 132 0707 After releasing F the curvepoint is selected again A P V h min s Bild 133 0707 Keep A depressed The air actuator has been selected for editin...

Page 171: ...described Curvepoint Value 1 fuel Value 2 air P0 30 0 22 0 P1 32 0 24 0 P9 80 0 90 0 P2 through P8 have automatically been calculated Curvepoint Value 1 fuel Value 2 air P2 38 0 32 3 P3 44 0 40 5 P4 50 0 48 8 P5 56 0 57 P6 62 0 65 3 P7 68 0 73 5 P8 74 0 81 8 P5 shall now be changed reset P V h min s Bild 136 0707 F or A P V h min s Bild 137 0707 Keep F or A depressed Example F F or A and or P V h ...

Page 172: ...ears P V h min s 7 Bild 141 0707 The display jumps to P6 All curvepoints from P5 to P9 have now been automatically recalculated linear interpolation Curvepoint Value 1 fuel Value 2 air P5 50 0 46 0 P6 57 5 57 0 P7 65 0 68 0 P8 72 0 79 0 P9 80 0 90 0 3 s P V h min s Bild 124 0707 Keep depressed for 3 s CALC appears P V h min s Bild 142 0707 The display jumps to P4 All curvepoints from P1 to P5 have...

Page 173: ...t to P9 press or P1 press can be calculated by a long push on or Display CALC Example of presentation P5 down to P1 Keep depressed for 3 s P5 up to P9 Keep depressed for 3 s CALC CALC Figure 83 Changing several curvepoints Note Due to interpolation a number of curvepoints change To be able to make a check on the burner itself the changed curvepoints must be approached in the warm settings If these...

Page 174: ... s Bild 145 0707 Press simultaneously A and or to adjust ignition position P0 of the air actuator Example 20 0 P V h min s Bild 148 0707 Now release A The selected value will be adopted Example 20 0 P V h min s Bild 113 0707 Identification of start for setting the curve parameters Note You now have the option of pressing reset to proceed with the warm settings see section Warm settings for modulat...

Page 175: ... min s Bild 115 0707 Phase Traveling to prepurge position P V h min s Bild 116 0707 Phase Prepurging P V h min s Bild 117 0707 Phase Traveling to ignition position Wait until the burner is operation and symbol or is no longer highlighted The startup sequence stops in Phase 36 Traveling to ignition position The ignition position can be adjusted under cold conditions A and or P V h min s Bild 149 07...

Page 176: ...9 0707 Phase Preignition P V h min s Bild 120 0707 Phase 1st safety time ignition transformer ON P V h min s Bild 122 0707 Phase Interval 1 A and or P V h min s Bild 149 0707 Ignition position P0 can be set only when symbol or is no longer highlighted Keep A depressed Press or to adjust the value When symbol or is no longer highlighted the next curvepoint P1 can be selected with ...

Page 177: ...l or is no longer highlighted Set switch on point stage 2 P2 Fuel valve V2 is still off Keep A depressed Adjust the value with or When symbol or is no longer highlighted the next curvepoint P2_d can be selected with To the next curvepoint Back to the previous curvepoint A and or P V h min s Bild 152 0707 Curvepoint P2_d can be set only when symbol or is no longer highlighted Fuel valve V2 is still...

Page 178: ... 154 0707 Curvepoint P2of is now adjusted The LMV27 remains at P2 Adjust the switch off point with no travel Now the curvepoint is approached dynamically when traveling from P2 to P1 When symbol or is no longer highlighted the next curvepoint P1 can be selected with To the next curvepoint Back to the previous curvepoint P V h min s Bild 155 0707 Automatic mode will be released when after reaching ...

Page 179: ...or multistage mode Lo 2 stage and Lo 3 stage Note Refer to chapters Warm settings for Lo 2 stage and Lo 3 stage But with no flame no actuator travel and no automatic operation after the settings have been made If run is shown in the display the following must be observed P V h min s Bild 113 0707 Identification of start for setting the curve Note You now have the option of pressing ESC to continue...

Page 180: ...show the intensity of flame When pressing the button for 1 s a change to parameter 954 is made when releasing the button you return to the curvepoint P V h min s Bild 123 0707 Example Curvepoint Low flame position P1 reset 1 s Change to parameter 954 Parameter 954 flashes The intensity of flame in is shown on the right Example 954 0 0 reset P V h min s Bild 123 0707 Release reset to return to curv...

Page 181: ...on of AZL2 backup data set 1 Std_s32 Read only 0 99999999 1 0 HF 056 ASN extraction of AZL2 backup data set 8 Std_u8 Read only 0 127 1 0 HF 057 Software version when creating the AZL2 backup data set 1 Hex_16 Read only 0x100 0xFFF9 1 0 HF 100 General 102 Identification date 1 Date Read only 0 255 1 IS 103 Identification number 1 Std_u16 Read only 0 65535 1 IS 104 Preselected parameter set Customer...

Page 182: ...lses volume unit 1 Std_u16 Edit 0 400 0 01 0 HF HF 130 Delete display of error history To delete the display Set the parameter to 1 then to 2 Response 0 Job successful Response 1 Timeout of 1_2 Sequence 1 Std_s8 Edit 5 2 1 0 HF HF 133 Default output at TÜV test Invalid TÜV test at active output 20 100 low fire high fire or stage 1 stage 2 stage 3 P1 P3 stage 1 stage 3 1 Power Edit clear 20 100 0 1...

Page 183: ...1 undefined HF GA HF GA 161 Number of faults 1 Std_u16 Read only 0 65535 1 0 IS 162 Operating hours resettable 1 Std_s32 Reset 0 h 999999 h 1 h 0 h IS IS 163 Operating hours LMV27 on supply 1 Std_s32 Read only 0 h 999999 h 1 h 0 h IS 164 Number of startups resettable 1 Std_s32 Reset 0 9999999 1 0 IS IS 166 Total number of startups 1 Std_s32 Read only 0 9999999 1 0 IS IS 167 Fuel volume resettable ...

Page 184: ... OEM 199 Repetition limit value actuators 1 no repetition 2 1 repetition 3 2 repetitions 1 Std_u8 Edit 1 3 1 3 OEM OEM 200 Basic unit LMV27 201 Burner operating mode fuel train modulating multistage actuators etc undefined delete curves 1 G mod 2 Gp1 mod 3 Gp2 mod 4 Lo mod 5 Lo 2 stage 6 Lo 3 stage 7 G mod pneu 8 Gp1 mod pneu 9 Gp2 mod pneu 10 LoGp mod 11 LoGp 2 stage 12 Lo mod 2 fuel valves 13 Lo...

Page 185: ...ad controller contacts staged 0 standard 1 stages interchanged 1 Std_u8 Edit 0 1 1 0 OEM OEM 208 Program stop 0 deactivated 1 prepurge position phase 24 2 ignition position phase 36 3 interval 1 phase 44 4 interval 2 phase 52 1 Selection Edit 0 4 1 0 HF GA HF GA 210 Alarm in the event of start prevention 0 deactivated 1 activated 1 Selection Edit 0 1 1 0 HF HF 211 Fan ramp up time 1 Time Edit 2 s ...

Page 186: ... 0 2 s 3 s OEM OEM 229 Gas Time to respond to pressure faults within first and second safety time 1 Time Edit 0 4 s 9 6 s 0 2 s 1 8 s OEM OEM 230 Gas Interval 1 1 Time Edit 0 4 s 60 s 0 2 s 2 s HF HF 231 Gas Second safety time 1 Time Edit 1 s 10 s 0 2 s 3 s OEM OEM 232 Gas Interval 2 1 Time Edit 0 4 s 60 s 0 2 s 2 s HF HF 233 Gas Afterburn time 1 Time Edit 0 2 s 60 s 0 2 s 8 s HF HF 234 Gas Postpu...

Page 187: ...0 2 s 10 s OEM OEM 244 Gas Valve proving test space filling 1 Time Edit 0 2 s 10 s 0 2 s 3 s OEM OEM 245 Gas Valve proving test time gas pressure 1 Time Edit 0 2 s 60 s 0 2 s 10 s OEM OEM 246 Gas Waiting time gas shortage 1 Time Edit 0 2 s 60 s 0 2 s 10 s OEM OEM 248 Gas Postpurge time abortion with load controller ON 1 Time Edit 1 s 108 min 0 2 s 1 s HF HF 249 Gas Prepurge time OEM 1 Time Edit 5 ...

Page 188: ...epetition 2 1 repetition Recharging time After the Operation phase 1 1 Std_u8 Edit 1 2 1 2 OEM OEM Note Parameters 280 and 240 refer to the same value This means that no separate setting is possible for oil gas or fuel 0 fuel 1 281 Oil Point in time oil is ignited 0 short preignition phase 38 1 long preignition with fan phase 22 1 Selection Edit 0 1 1 1 HF HF 284 Oil Postpurge time abortion with l...

Page 189: ...fined HF HF GA 546 Upper output limit undefined 100 1 Output Edit clear 20 100 0 1 undefined HF HF GA 600 Actuators 601 Selection of reference point Index 0 fuel Index 1 air Setting values 0 CLOSED 0 1 OPEN 90 2 Selection Edit 0 1 1 Index 0 1 Value 1 0 OEM HF 602 Actuator s direction of rotation Index 0 fuel Index 1 air Setting values 0 counterclockwise 1 clockwise exclusively for SQM3 2 Selection...

Page 190: ...DC 0 10 V 1 DC 2 10 V 2 DC 0 2 10 V 1 Std_u8 Edit 0 2 1 0 OEM HF 700 Error history 701 Current error state 701 01 Error code 25 Std_u8 Read only 0 255 1 0 IS 701 02 Diagnostic code 25 Std_u8 Read only 0 255 1 0 IS 701 03 Error class 25 Std_u8 Read only 0 6 1 0 IS 701 04 Error phase 25 Std_u8 Read only 0 255 1 0 IS 701 05 Startup counter 25 Std_s32 Read only 0 99999999 1 0 IS 701 06 Output 25 Outpu...

Page 191: ...oad controller CLOSE Bit 0 7 128 Safety loop Bit 1 0 1 Safety valve Bit 1 1 2 Ignition Bit 1 2 4 Fuel valve V1 Bit 1 3 8 Fuel valve V2 Bit 1 4 16 Fuel valve V3 pilot valve Bit 1 5 32 Reset 2 Std_u8 Read only 0 255 1 0 IS For query via ACS410 948 Contact feedback network counter register 14 Std_u8 Read only 0 255 1 0 HF 950 Required relay state bit coded Bit 0 1 Alarm Bit 1 2 Safety valve Bit 2 4 I...

Page 192: ...0 255 1 0 IS For query via ACS410 992 Error flags 10 Hex_32 Reset 0 0xFFFFFFFF 1 0 HF Legend Std_u8 8 Bit integer not signed Std_u16 16 Bit integer not signed Std_u32 32 Bit integer not signed Std_s8 8 Bit integer signed Note This data type is also used to mark an invalid or signed values by using the value 1 Std_s16 16 Bit integer signed Note This data type is also used to mark an invalid or sign...

Page 193: ...d in pneumatic operation 4 Air pressure on start prevention 20 Air pressure combustion pressure start prevention 68 Air pressure POC start prevention 84 Air pressure combustion pressure POC start prevention 4 Extraneous light 0 Extraneous light during startup 1 Extraneous light during shutdown 2 Extraneous light during startup start prevention 6 Extraneous light during startup air pressure start p...

Page 194: ...2 inputs assigned check parameters 236 and 237 81 V1 leaking Check to see if the valve on the gas side is leaking Check wiring to see if there is an open circuit 83 V2 leaking Check to see if the valve on the burner side is leaking Check to see if the pressure switch for the leakage test is closed when gas pressure is present Check wiring for short circuit Check whether the gas pressure is present...

Page 195: ...pressure start prevention 19 Safety loop burner flange extraneous light combustion pressure start prevention 21 Safety loop burner flange air pressure combustion pressure start prevention 23 Safety loop burner flange extraneous light air pressure combustion pressure start prevention 65 Safety loop burner flange POC start prevention 67 Safety loop burner flange extraneous light POC start prevention...

Page 196: ...When the trim function is activated parameter 530 the default output must not be on invalid if the Modbus communication parameter 148 149 is interrupted 2 Analog output preset valid default output low fire 1 Check wiring of analog predefined output to see if there is an open circuit loose contact 2 When the trim function is activated parameter 530 the default output must not be on invalid if the M...

Page 197: ...l ratio control Data clocking check 1 Current output different Check the external load controller including the connection Parameters 123 1 and 123 2 must be identical example set to 1 2 Target output different Check the external load controller including the connection Parameters 123 1 and 123 2 must be identical example set to 1 4 Target positions different Check the external load controller inc...

Page 198: ...ed variation VSD ramp up time too long speed below minimum limit for standardization Motor has not reached a stable speed after ramp up 1 Ramp time settings of the VSD are not shorter than those of the LMV27 parameters 522 523 2 Characteristic of the VSD is not linear Configuration of the voltage input at the VSD must accord with that of the LMV27 parameter 645 3 VSD does not follow quickly enough...

Page 199: ... standardization 25 Pneumatic air fuel ratio control Standardization was started with pneumatic air fuel ratio control standardization with pneumatic air fuel ratio control not possible Attention If speed supervision is required in the pneumatic ratio control the relevant parameters must be set parameters 667 668 669 before standardization 128 Running command with no preceding standardization VSD ...

Page 200: ... s 10 outside the anticipated range 1 Check ramp times of the LMV27 and VSD 2 Check wiring of the VSD Bit 6 Valency 64 Minimum speed fall below phase dependent 1 Standby phase 12 Check the setting for the minimum speed and maximum speed during operation parameter 669 0 669 1 MAX MIN 2 Check the speed recording absolute speed parameter 935 standardized speed parameter 936 3 Prepurge phase phase 30 ...

Page 201: ...ramp setting parameter 544 1 Modulating operating ramp 32 seconds The slope of the curve may be a maximum position change of 31 15 for SQM33 6 and 9 for SQM33 7 between 2 curve points in modulating mode 2 Modulating operating ramp 64 seconds The slope of the curve may be a maximum position change of 62 30 for SQM33 6 and 18 for SQM33 7 between 2 curve points in modulating mode Bit 2 Valency 4 7 Ai...

Page 202: ...between 2 curve points in modulating mode Bit 4 Valency 16 Step deviation in comparison with last referencing Actuator was overloaded or mechanically twisted 1 Check the setting of the actuator type parameter 613 0 or 614 2 Check to see if the actuator is blocked somewhere along its working range 3 Check to see if the torque is sufficient for the application 87 Error air actuator 0 Position error ...

Page 203: ...l power supply fed to safety relay Test the contacts 1 LMV27 connected to power Fan output must be dead 2 Disconnect power Disconnect fan No resistive connection between fan output and neutral conductor allowed If one of the 2 tests fails release the LMV27 since contacts have definitively welded and safety can no longer be ensured 98 Error relay supervision 2 Safety valve 3 Ignition transformer 4 ...

Page 204: ...re the problem occurred 106 Internal error contact request Make a reset if error occurs repeatedly replace the LMV27 0 Pressure switch min 1 Pressure switch max POC 2 Pressure switch valve proving 3 Air pressure 4 Load controller open 5 Load controller on off 6 Load controller close 7 Safety loop Burner flange 8 Safety valve 9 Ignition transformer 10 Fuel valve V1 11 Fuel valve V2 12 Fuel valve V3...

Page 205: ...de voltage value 120 V 0 843 230 V 1 683 112 0 Mains voltage recovery Error code for triggering a reset on power restoration no error 113 Internal error mains voltage supervision Make a reset if error occurs repeatedly replace the LMV27 115 Internal error system counter 116 0 Designed lifecycle exceeded 250 000 startups Warning threshold has been reached The LMV27 should be replaced 117 0 Life tim...

Page 206: ... LMV27 134 Internal error EEPROM access Request synchronization Make a reset repeat last parameterization check If error occurs repeatedly replace the LMV27 135 Internal error EEPROM access Request synchronization Make a reset repeat last parameterization check If error occurs repeatedly replace the LMV27 136 Restore 1 Restore started Restore of a backup has been started no error New LMV27 require...

Page 207: ...f the valves is leaking 154 Trim function Invalid analog value 1 Check wiring of analog trim specification to see if there is an open circuit loose contact 2 Check the process date of the read in trim specification parameter 916 4 mA 15 12 mA 0 20 mA 15 1 Start prevention 2 Warning message trim function temporarily deactivated 155 Trim function Invalid curve setting VSD PWM fan The curve setting o...

Page 208: ...own During a curve setting via the AZL2 the timeout for menu operation has elapsed setting via parameter 127 or communication between the LMV27 and the AZL2 has broken down 9 Manual locking by the ACS410 PC software Communication breakdown During a curve setting via the ACS410 communication between the LMV27 and the ACS410 was interrupted for more than 30 seconds 33 Manual locking after ACS410 PC ...

Page 209: ...am stop Program stop is active no error 205 Internal error Make a reset if error occurs repeatedly replace the LMV27 206 0 Inadmissible combination of LMV27 LMV27 AZL2 207 Version compatibility LMV27 AZL2 0 LMV27 version too old 1 AZL2 version too old 208 Internal error Make a reset if error occurs repeatedly replace the LMV27 209 Internal error Make a reset if error occurs repeatedly replace the ...

Page 210: ...40 Optimization Modbus mode and operating mode are maintained when a reset is made Extension Additional Modbus addresses refer to Modbus Documentation A7541 Extension Actuator tolerance can be parameterized by OEM and read by the heating engineer Change The heating engineer can set the time when valve proving takes place Extension Calculation of fuel throughput Optimization Separate diagnostic cod...

Page 211: ...th cold setting no startup on completion of the password time Communication breakdown with the ACS410 30 seconds leads to lockout during the time the curves are set error code 167 diagnostics 9 Software version V02 90 Optimization Indication of errors on the parameter and info service menu Optimization Rectification of eBus error telegrams correction of manufacturer s code for safety temperature l...

Page 212: ...rview through text changes of groups 200 PAr0 300 PAr1 and 600 ACtr on the parameter menu initially PArA and hiding of unused parameters after selection of fuel train operating mode Optimization To shorten the startup time there is no referencing when postpurging is aborted via load controller ON direct start Automatic return travel of the SQN1 at the lower internal stop Software version V03 30 Ex...

Page 213: ...e fan to ignition speed postpurge speed or standby speed as well as increased speed tolerance outside operation Extension Speed dependent air pressure switch Extension Increase in the flame sensitivity Extension Gas pressure switch min positioned after the fuel valves CSA 149 3 Extension Immediate lockout in the event of inadequate air supply UL 795 EN 676 Optimization No repetition during success...

Page 214: ...Levels 132 List phase displays 128 Lo 2 stage Lo 3 stage 175 179 Lo 2 stage Lo 3 stage 174 Manual control 121 Manual lockout 120 Menu driven operation 132 Normal display 127 Operating 118 Operating position 129 Operation 127 Parameter level 140 Parameter level structure 148 Parameter level use 147 Parameter with index with direct display 153 Parameter with index without direct display 155 Paramete...

Page 215: ...Modulation range 93 Modulation range limitation 97 Multistage operation 95 Operating position 92 96 Operating position end 97 Operating positions 89 Outputs 96 Postpurging 90 Prepurging 89 Running position 92 Settings parameter settings 97 Traveling speed 89 95 Traveling speed curve slope 92 I Inputs outputs X10 05 X10 06 33 Ionization probe Technical data 26 L Lifecycle function 117 LMV27 33 Comm...

Page 216: ...nce diagrams G G mod G mod pneu 71 Gp1 Gp1 mod Gp1 mod pneu72 Gp2 Gp2 mod Gp2 mod pneu73 Lo Lo mod Lo 2 stage Lo 3 stage 74 Special features 112 Special functions Alarm start prevention 54 Continuous fan 60 Forced intermittent operation 59 Gas shortage program 58 Low fire shutdown 59 Program stop function 59 Repetition counter 55 Reset manual lockout 53 Start preventions 54 Start without prepurgin...

Page 217: ...ternal load controller Open Close X5 03 37 Figure 17 Air pressure switch X3 02 38 Figure 18 Gas pressure switch valve proving X9 04 39 Figure 19 Gas pressure switch min oil pressure min X5 01 40 Figure 20 Gas pressure max oil pressure switch max or POC X5 02 43 Figure 21 Reset X8 04 44 Figure 22 Output alarm X3 05 45 Figure 23 Fan motor contactor X3 05 45 Figure 24 Continuous fan operation X3 05 4...

Page 218: ... with gas pilot ignition 69 Figure 51 Light oil with gas pilot ignition fuel valve control 69 Figure 52 Light oil with gas pilot ignition 70 Figure 53 Light oil with gas pilot ignition fuel valve control 70 Figure 54 Program for gas direct ignition G G mod G mod pneu 71 Figure 55 Program for gas pilot ignition Gp1 Gp1 mod Gp1 mod pneu 72 Figure 56 Program for gas pilot ignition Gp2 Gp2 mod Gp2 mod...

Page 219: ...14 Figure 76 Description of unit display and buttons 118 Figure 77 Meaning of display 119 Figure 78 Assignment of levels 132 Figure 79 Info level 133 Figure 80 Service level 138 Figure 81 Parameter level structure 148 Figure 82 Setting the curvepoints 166 Figure 83 Changing several curvepoints 173 Siemens AG Building Technologies Berliner Ring 23 D 76437 Rastatt Tel 0049 7222 598 279 Fax 0049 7222...

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