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Building Technologies Division

User Manual RWF55...

CC1U7867en

Infrastructure & Cities Sector

5 Operating modes

05.11.2013

5.2.4 2-stage burner, analog output

In this case, a digital standard signal switches the second stage on via the analog
output (terminals

A+

and

A-

) when reaching switch-on threshold

HYS1

and off at the

lower switch-off threshold

HYS2

.

A

7866d08/0911

Figure 11: Control sequence of 2-stage burner, analog output

If the controller is set to cooling mode, the respective values of

HYS4

,

HYS5

and

HYS6

apply.

Starting from a high actual value, the controller now controls the connected cooling
equipment in low-fire operation. In high-fire operation, the second stage and thus the
cooling output are controlled via relays K2 and K3 or the analog output. The response
threshold (q) calculates automatically (now in the reverse sense) the point from which
the cooling output is to be increased.

Cooling controller

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Содержание RWF55.5

Страница 1: ...e and pressure control in connection with modulating or multistage burners and air conditioning systems User Manual The RWF55 5 RWF55 6 and this User Manual are intended for use by OEMs which integrate the controllers in their products Caution All safety warning and technical notes contained in the Data Sheet on the RWF55 N7867 also apply to this document ...

Страница 2: ...2 93 Building Technologies Division User Manual RWF55 CC1U7867en Infrastructure Cities Sector 05 11 2013 ...

Страница 3: ...93 Building Technologies Division User Manual RWF55 CC1U7867en Infrastructure Cities Sector Introduction 05 11 2013 Supplementary documentation Data Sheet RWF55 N7867 Environmental Declaration RWF55 E7867 ...

Страница 4: ...4 93 Building Technologies Division User Manual RWF55 CC1U7867en Infrastructure Cities Sector 05 11 2013 ...

Страница 5: ... Removing the controller from the panel cutout 16 3 6 Cleaning the front 16 4 Electrical connections 17 4 1 Installation notes 17 4 2 Galvanic separation 18 4 3 Assignment of terminals 19 5 Operating modes 22 5 1 Low fire operation 22 5 2 High fire operation 23 5 2 1 Modulating burner 3 position output 23 5 2 2 Modulating burner analog output 24 5 2 3 2 stage burner 3 position output 25 5 2 4 2 st...

Страница 6: ... Analog input InP3 53 8 4 Controller Cntr 54 8 5 Thermal shock protection TSS rAFC 55 8 6 Alarm function AF 56 8 7 Control outputs OutP 58 8 8 Binary input binF 59 8 9 Display diSP 60 8 10 Interface IntF 61 9 Self setting function 62 9 1 Self setting function in high fire operation 62 9 2 Checking the controller parameters 64 10 PC software ACS411 65 10 1 Safety notes 65 10 2 Setting the correct s...

Страница 7: ... 485 Technology transfer 72 12 2 Wiring 77 12 3 Parameter list 77 13 What to do if 78 13 1 Alarm messages 78 13 2 Others 78 14 Technical data 79 14 1 Inputs 79 14 1 1 Analog input InP1 actual value 79 14 1 2 Analog input InP2 external setpoint setpoint shifting 81 14 1 3 Analog input InP3 outside temperature 81 14 1 4 Binary input D1 81 14 1 5 Binary input D2 82 14 2 Monitoring the measuring circu...

Страница 8: ...on 1 1 General notes Please read this User Manual before switching on the controller Keep the User Manual in a safe place which can be accessed by all users at all times Version This User Manual describes all necessary settings applicable to controller software version XXX 01 01 Reference See chapter 6 7 Display of software version ...

Страница 9: ...ished safety practices and standards Note the following The controller may only be used on the applications described in the technical documentation and only in connection with devices or components from other suppliers that have been approved or recommended by Siemens The product can only function correctly and safely if shipped stored set up and installed correctly and operated and maintained as...

Страница 10: ...xt is placed at the bottom of the page and starts with a number and a period Action An asterisk indicates that a required action is described The individual steps are indicated by asterisks for example Press 1 2 4 Presentation Buttons Buttons are shown in a circle Either symbols or text are possible If a button has multiple assignments the text shown is always the text corresponding to the functio...

Страница 11: ...d a multifunctional relay K6 which can be used to set 12 different switching functions The controllers feature an RS 485 interface Modbus slave as standard Additionally the RWF55 6 features a Profibus DP interface In modulating mode the RWF55 operates as a PID controller In 2 stage mode the RWF55 provides control based on the set switching threshold You have the option of specifying the setpoint o...

Страница 12: ...12 93 Building Technologies Division User Manual RWF55 CC1U7867en Infrastructure Cities Sector 1 Introduction 05 11 2013 1 4 Block structure Figure 1 Block structure ...

Страница 13: ...oltage given on the type field Product no Description RWF55 50A9 Full version with 3 position output analog output RS 485 single pack RWF55 51A9 Full version with 3 position output analog output RS 485 multipack 20 pieces RWF55 60A9 Full version with 3 position output analog output RS 485 Profibus DP single pack RWF55 61A9 Full version with 3 position output analog output RS 485 Profibus DP multip...

Страница 14: ...vibrations dust and corrosive media The controller should be installed away from sources of electromagnetic fields such as variable speed drives or high voltage ignition transformers Relative humidity 95 noncondensing Ambient temperature 20 50 C Storage temperature 40 70 C 3 2 Dimensions 51 99 91 5 44 5 48 57 1 110 11 8 96 45 0 6 92 0 8 2 1 7867m01 0612 Figure 2 Dimensions of RWF55 Key 1 USB inter...

Страница 15: ...a panel cutout Remove the mounting clips Fit the seal supplied with the controller Attention The controller must be installed with the seal preventing water or dirt from entering the housing 2 3 1 3 2 7867z02 0612 Figure 3 Mounting in a panel cutout Insert the controller from the front into the panel cutout 1 and make certain the seal is correctly fitted Working from the rear side of the panel pus...

Страница 16: ...he controller make certain that all cables are disconnected and that they do not get squeezed between control panel and housing 3 6 Cleaning the front The front of the controller can be cleaned with normal washing rinsing agents or detergents Attention The front of the controller is not resistant to corrosive acids caustic solutions and abrasive cleaners Do not clean with high pressure cleaners ...

Страница 17: ...lectric shock Caution All screw terminals at the rear of the unit must always be properly tightened This applies to unused terminals as well Caution Fusing on site must not exceed 20 A The fuse on the controller side AC 250 V 1 6 A slow conforms to IEC 60127 4 To prevent the relay contacts from welding in the event of short circuit in the load circuit fusing of the output relays must give consider...

Страница 18: ...closed DC 50 V AC 2210 V AC 3510 V Analog input Analog input Analog input InP1 InP2 InP3 For resistance thermometer thermo elements or standard signals D1 D2 DG For potentialfree contacts USB setup For PC software ACS411 Binary input interface LED Buttons Power supply measuring transducer G G DC 24 V 10 max 30 mA short circuit proof Burner release 1P 1N Relay NO contact Power consumption max 20 VA...

Страница 19: ... K3 KQ K2 1P 1N N L1 7867z01 0712 Figure 5 Assignment of terminals Outputs Display LED Terminal no Connection diagram Relay Burner release Relay K1 1P 1N 1P pole 1N NO contact 1P P S 1N 7866a01 0911 3 position output Relay K3 Controlling element CLOSE Relay K2 Controlling element OPEN K3 NO contact KQ common pole K2 NO contact P S K3 KQ K2 S P 7866a02 0911 Multifunctional relay K6 6N 6P K6 6N NO c...

Страница 20: ...nt input DC 0 20 mA 4 20 mA 12 14 14 12 7867a06 0612 Ix Voltage input DC 0 5 V DC 1 5 V DC 0 10 V 13 14 14 13 7867a07 0612 Ux Analog input InP2 external setpoint or setpoint shifting Terminal no Connection diagram Resistance thermometer in 2 wire circuit 0 1000 21 23 21 7867a14 0612 23 Current input DC 0 20 mA 4 20 mA 21 23 23 21 7867a23 0612 Ix Voltage input DC 0 5 V 1 5 V 0 10 V 22 23 23 22 7867...

Страница 21: ... DG Binary input D2 D2 Common ground DG DG Power supply Terminal no Connection diagram Power supply AC 110 240 V 10 15 48 63 Hz L1 Live conductor N Neutral conductor L1 N 7866a09 0911 Power supply measuring transducer short circuit proof G G G G 7867a10 0612 DC 24 V 10 max 30 mA Interface Terminal no Connection diagram RS 485 R R RxD TxD RXD TxD Only RWF55 6 Profibus DP C1 C2 C3 C4 VP 5 V RxD TxD ...

Страница 22: ...rence ensures that the burner s switching frequency can be selected aimed at reducing wear ON OFF 7866d03e 1011 Figure 6 Control sequence of heating controller Modulating and 2 stage operation Actual value lies between switch on threshold HYS1 and switch off threshold HYS3 If the controller is set to cooling mode temperature limits HYS4 and HYS6 apply In that case relay K1 Burner release is used f...

Страница 23: ...pter 8 8 Binary functions binF 5 2 1 Modulating burner 3 position output In area 1 the thermostat function is active The lowest burner stage is switched on below switch on threshold HYS1 and switched off above switch off threshold HYS3 7866d05 0911 Figure 8 Control sequence of modulating burner 3 position output Here operating mode Modulating burner is shown In high fire operation the 3 position c...

Страница 24: ...ulating burner 3 position output If the controller is set to cooling mode the respective values HYS4 and HYS6 apply Starting from a high actual value the controller now controls the connected cooling equipment in low fire operation In high fire operation the cooling output is controlled via relays K2 and K3 or the analog output The response threshold q calculates automatically now in the reverse s...

Страница 25: ...itching on at switch on threshold HYS1 and switching off at switch off threshold HYS2 7866d07 0911 Figure 10 Control sequence of 2 stage burner 3 position output In area 3 the actual value exceeds the upper switch off threshold HYS3 and the controller shuts down the burner B The controller only starts low fire operation when the actual value falls again below switch on threshold HYS1 If the respon...

Страница 26: ...7866d08 0911 Figure 11 Control sequence of 2 stage burner analog output If the controller is set to cooling mode the respective values of HYS4 HYS5 and HYS6 apply Starting from a high actual value the controller now controls the connected cooling equipment in low fire operation In high fire operation the second stage and thus the cooling output are controlled via relays K2 and K3 or the analog out...

Страница 27: ...re the controller cannot monitor the actual value of the boiler temperature analog input InP1 Burner shutdown will automatically be triggered to guard against overheating The same applies to acquiring the external setpoint using analog input InP2 Burner off 3 position output for closing the controlling element Self setting function is ended Manual control is ended Functions ...

Страница 28: ...ver Shifting Binary input D1 Information SP1 Analog via InP2 Open Reference See chapter 5 4 1 Setpoint changeover SP1 SP2 or shifting analog via InP2 SP2 Analog via InP2 Closed SP1 Open Reference See chapter 5 4 2 Setpoint changeover SP1 external setpoint via InP2 External setpoint via InP2 Closed Setpoint SP1 analog via InP2 no binary shifting Open Reference See chapter 5 4 3 Setpoint shifting SP...

Страница 29: ... 3 Function 2 InP2 FnC2 SPL oLLo Active setpoint SPH oLHi Heating curve Factory setting 10 60 20 50 At1 Ht1 At2 Ht2 Function InP3 InP3 See chapter 8 3 Analog input Function of binary input D1 Setpoint changeover 0 1 2 0 1 Binary input circuit D1 See chapter 4 3 Assignment of terminals See chapter 7 Parameterization PArA See chapter 5 5 Weather compensated setpoint shifting See chapter 8 3 Analog i...

Страница 30: ...Lo Active setpoint SPH oLHi Heating curve Factory setting 10 60 20 50 At1 Ht1 At2 Ht2 Function InP3 InP3 See chapter 8 3 Analog input Function of binary input D1 Setpoint changeover 0 1 2 0 1 Beschaltung binary input D1 See chapter 4 3 Assignment of terminals See chapter 7 Parameterization PArA See chapter 5 5 Weather compensated setpoint shifting See chapter 8 3 Analog input InP3 Function 1 InP2 ...

Страница 31: ...oLLo Active setpoint SPH oLHi Heating curve Factory setting 10 60 20 50 At1 Ht1 At2 Ht2 Function InP3 InP3 See chapter 8 3 Analog input Function of binary input D1 Setpoint changeover 0 1 2 0 1 Beschaltung binary input D1 See chapter 4 3 Assignment of terminals See chapter 7 Parameterization PArA See chapter 5 5 Weather compensated setpoint shifting See chapter 8 3 Analog input InP3 Function 2 InP...

Страница 32: ...setpoint setpoint shifting binary via dSP binI 2 binI 1 binI 0 3 SPL oLLo Active setpoint SPH oLHi Function of binary input D1 Setpoint changeover 2 0 1 Binary input circuit D1 See chapter 4 3 Assignment of terminals See chapter 8 2 Analog input InP2 Function 1 InP2 FnC2 dSP 0 0 Figure 15 External setpoint setpoint shifting binary via dSP ...

Страница 33: ...er setpoint limit SPL and the upper setpoint limit SPH The system also prevents the lower working range limit oLLo and upper working range limit oLHi from exceeding dropping below the system temperature limits Note Each RWF55 must have its own separate outside sensor no parallel connection This function has been optimized for heating systems with DHW The heating curve describes the relationship be...

Страница 34: ...xceeds the preset response threshold q can be adjusted at the parameter level this causes the second burner stage to switch on or in the case of the 3 position controller modulating controller the controlling element to open If the current boiler temperature reaches the required setpoint qeff is reset to 0 7866d09e 0412 q q q q Temperature C Figure 17 Control sequence response threshold q In contr...

Страница 35: ...ntroller immediately starts in high fire operation as soon as the control deviation x w drops below a certain limit value This limit is calculated as follows Limit value 2 x HYS1 HYS3 In that case the response threshold q is inactive independent of operating mode and controlled variable temperature or pressure Operating mode Modulating 3 position output HYS1 5 K HYS3 5 K w 60 C Limit value 2 x 5 5...

Страница 36: ...the RWF55 is used as a cooling controller In that case the limit value is calculated as follows Limit value 2 x HYS4 HYS6 Operating mode Modulating 3 position output HYS4 5 K HYS6 5 K w 30 C Limit value 2 x 5 5 2 x 10 20 K When the actual value lies above 10 C cooling is immediately started in high fire mode in place of low fire mode Cooling controller Example ...

Страница 37: ...value rAL exceeds the adjustable limit value with the cooling controller In that case the setpoint is approached via a ramp function Gradient and slope of the ramp rASL are adjustable The setpoint ramp has a symmetrical tolerance band toLP If during the startup phase the actual value leaves the tolerance band the setpoint ramp is stopped until the actual value returns to a level within the toleran...

Страница 38: ...shock protection Alarm function Communication via interface Figure 20 Meaning of display and buttons The two 7 segment displays red and green show hyphens and all LEDs light up for about 5 seconds The upper display red shows the actual value The lower display green shows the setpoint Reference See chapter 8 9 Display diSP When entering parameters the parameter symbol green and the set value red ap...

Страница 39: ... Sector 6 Operation 05 11 2013 The actual value display red shows 9999 flashing Alarm message Reference See chapter 13 What to do if The setpoint display green shows HAnd flashing Reference See chapter 6 4 Manual control of a modulating burner Flashing actual value display Manual control ...

Страница 40: ...values can be displayed via configuration level or via PC software ACS411 Reference See chapter 8 9 Display diSP Manual control self setting the user level parameter level and configuration levels can be activated from here Basic display Enter 7867d11e 1212 Enter Setpoint increase factory set SP1 Setpoint reduce factory set SP1 ESC 2 s or timeout Enter OPr Enter User level OPr SP1 SP2 dSP Y E or O...

Страница 41: ...nly appears if setpoint changeover is set binary input bin1 1 From the basic display press so that OPr appears Press so that SP1 appears Press to change over to SP2 Press and SP2 flashes Press or to adjust the required setpoint and press to confirm dSP only appears if setpoint shifting is set binary input bin1 2 From the basic display press so that OPr appears Press so that SP1 appears Press to ch...

Страница 42: ...roller Open and close fuel air ratio control by pressing and Relay K2 opens the controlling element as long as is kept depressed Relay K3 closes the controlling element as long as is kept depressed The 2 yellow arrows indicate when relay K2 opens or relay K3 closes the controlling element Change angular positioning by pressing or Adopt flashing new angular positioning by pressing Per default the a...

Страница 43: ...ontrol manual control is ended Press for 5 seconds Press briefly Relay K2 K3 Analog output A A Relay K2 is active Relay K3 is inactive The analog output delivers the highest value depending on setting DC 10 V or 20 mA Controlling element opens Or press briefly Relay K2 K3 Analog output A A Relay K2 is inactive Relay K3 is active The analog output delivers the lowest value depending on setting DC 0...

Страница 44: ...self setting function Press for 5 seconds Cancel with 7867z04 0612 Figure 23 Display of self setting function When tUnE stops flashing the self setting function has been ended The parameters calculated by the controller are automatically adopted Note It is not possible to start tUnE in manual control or low fire operation Start Cancel ...

Страница 45: ...es Sector 6 Operation 05 11 2013 6 7 Display of software version Press 7867z05 0612 Figure 24 Display of software version Press again 7867z25 0612 Figure 25 Display segment test All display segments and LEDs light up the actual value display red flashes for about 10 seconds Segment test ...

Страница 46: ...r Navigation principle Enter ESC One level back One level down Next previous parameter PArA Enter Parameter level PArA HYS3 HYS6 At1 Ht1 At2 Ht2 Heating controller Cooling controller HYS1 HYS2 HYS4 HYS5 Pb1 dt rt db tt Enter Configuration level ConF InP Cntr rAFC AF OutP binF diSP IntF Analog inputs Controller Thermal shock protection Alarm function Controlling outputs Binary inputs Display Interf...

Страница 47: ...0911 Controlling element running time tt 10 3000 s 15 Running time of the positioning valve for use with modulating controllers Switch on threshold Heating controller HYS1 1999 0 0 digit 5 Reference See chapter 5 2 High fire operation Switch off threshold stage II Heating controller HYS2 0 0 HYS3 digit 3 Reference See chapter 5 2 High fire operation Switch off threshold Heating controller HYS3 0 0...

Страница 48: ...Curve point 2 At2 40 120 20 Reference See chapter 5 5 Weather compensated setpoint shifting Boiler temperature Curve point 2 Ht2 SPL SPH 50 Reference See chapter 5 5 Weather compensated setpoint shifting Setting of decimal place has an impact on this parameter Note When using the RWF55 as a modulating controller only or as a modulating controller without the burner release function 1P 1N parameter...

Страница 49: ...l OPr Navigation principle Enter ESC One level back One level down Next previous parameter PArA Enter Parameter level PArA HYS3 HYS6 At1 Ht1 At2 Ht2 Heating controller Cooling controller HYS1 HYS2 HYS4 HYS5 Pb1 dt rt db tt Enter Configuration level ConF InP Cntr rAFC AF OutP binF diSP IntF Analog inputs Controller Thermal shock protection Alarm function Controlling outputs Binary inputs Display In...

Страница 50: ...999 Using the measured value correction offset a measured value can be corrected to a certain degree either up or down Example Measured Offset Displayed values value 294 7 0 3 295 0 295 3 0 3 295 0 Caution Measured value correction To make the calculation the controller uses the corrected value displayed value This value does not represent the value acquired at the point of measurement If the meas...

Страница 51: ...ime in s 0 s filter off If the input signal changes abruptly about 26 of the change are captured after a time corresponding to the filter time constant dF 2 x dF approx 59 5 x dF approx 96 When the filter time constant is great Great attenuation of interference signals Slow response of actual value display to changes of the actual value Low limit frequency low pass filter Temperature unit Unit Tem...

Страница 52: ...e does not represent the value acquired at the point of measurement If the measured value correction function is used incorrectly e g overcompensation of measured values measurement error only present temporarily this may lead to undesirable plant states Start of display SCL2 Scale low level 1999 0 9999 In the case of a measuring transducer with standard signal the physical signal is assigned a di...

Страница 53: ...94 7 0 3 295 0 295 3 0 3 295 0 Caution Measured value correction To make the calculation the controller uses the corrected value displayed value This value does not represent the value acquired at the point of measurement If the measured value correction function is used incorrectly e g overcompensation of measured values measurement error only present temporarily this may lead to undesirable plan...

Страница 54: ...ed range The setpoint limits are not active in the case of predefining setpoints via the interface In the case of an external setpoint with correction the correction value is limited to SPL SPH Setpoint limitation end SPH Setpoint limitation high 1999 100 9999 Self optimization 0 Free 1 Locked Self optimization can only be disabled or enabled via the ACS411 setup program If disabled via ACS411 PC ...

Страница 55: ...ng controller Smallest possible factory setting 2 x HYS1 10 K To monitor the actual value in connection with thermal shock protection TSS a tolerance band can be laid about the setpoint curve If the limit values are crossed the ramp is stopped Reference See chapter 5 8 Thermal shock protection TSS Cooling controller Smallest possible factory setting 2 x HYS4 10 K Note In the event of a faulty sens...

Страница 56: ...arm functions lk1 to lk6 the actual value InP1 is monitored in relation to a limit value AL that has to be set with the absolute value dependent on the setpoint w lk1 lk2 1 0 HYSt AL w x 7867z12 0612 1 0 w x AL HYSt 7867z13 0612 lk3 lk4 1 0 HYSt AL w x 7867z14 0612 1 0 HYSt AL w x 7867z15 0612 lk5 lk6 1 0 HYSt AL w x 7867z16 0612 1 0 HYSt AL w x 7867z17 0712 Figure 28 Alarm function lk1 lk6 In the...

Страница 57: ...tored input InP1 9 lk7 monitored input InP2 10 lk8 monitored input InP2 11 lk7 monitored input InP3 12 lk8 monitored input InP3 Limit value AL Alarm value 1999 0 9999 Limit value or deviation from setpoint to be monitored see alarm functions lk1 to lk8 limit value AL Limit value range for lk1 and lk2 0 9999 Switching difference HYSt Hysteresis 0 1 9999 Switching difference in relation to limit val...

Страница 58: ...hoices The RWF55 has an analog output The analog output offers the following setting choices ConF OutP Parameter Value selection Description Function FnCt Function 0 No function 1 Input InP1 is delivered 2 Input InP2 is delivered 3 Input InP3 is delivered 4 Controller s angular positioning is delivered modulating controller Signal type SiGn Type of signal 0 0 20 mA 1 4 20 mA 2 DC 0 10 V Physical o...

Страница 59: ...ides on the use of the binary inputs Reference See chapter 5 4 Preselected setpoint ConF binF Parameter Value selection Description Binary inputs bin1 Binary input 1 0 No function 1 Setpoint changeover 2 Setpoint shift 3 Alarm input bin2 Binary input 2 4 Changeover of operating mode Burner modulating Contacts D2 and DG open Burner 2 stage Contacts D2 and DG closed ...

Страница 60: ...k protection Lower display diSL Lower display Display value for lower display 0 Switched off 1 Analog input InP1 2 Analog input InP2 3 Analog input InP3 4 Controller s angular positioning 6 Setpoint 7 End value with thermal shock protection Timeout tout 0 180 255 Time s on completion of which the controller returns automatically to the basic display if no button is pressed Decimal point dECP Decim...

Страница 61: ...ofibus DP interface ConF IntF Parameter Value selection Description Baud rate bdrt Baud rate 0 4800 Baud 1 9600 Baud 2 19200 Baud 3 38400 Baud Device address Modbus Adr Device address 0 1 254 Address in the data network Device address Profibus dP Device address 0 125 Only RWF55 6 Remote Detection Timer dtt Remote detection timer 0 0 Switched off 30 7200 s Note If communication is taking place via ...

Страница 62: ...ller In modulating mode tUnE tests in high fire operation the response of the controlled system to angular positioning steps according to a special procedure A complex control algorithm uses the response of the controlled system actual value to calculate and automatically store the control parameters for a PID or PI controller set dt 0 The tUnE procedure can be repeated any number of times Self se...

Страница 63: ...he controlled system has settled for instance forced oscillation about the setpoint is performed X 7866d19 0911 Figure 32 Small control deviation The data of the controlled system recorded for the forced oscillations are used to calculate the controller parameters rt dt Pb1 and a filter time constant dF1 for actual value filtering that is optimized for this controlled system High fire operation in...

Страница 64: ...nd their correction The response to a setpoint change is shown here for a 3rd order controlled system for a PID controller The method used for adjusting the controller parameters can however also be applied to other controlled systems A suitable value for dt is rt 4 Pb too small Pb too large t x w 7865d17 1099 Figure 33 Pb too small t x w 7865d15 1099 Figure 34 Pb too large rt dt too small rt dt t...

Страница 65: ...sures have been taken to prevent incorrect entry of data and wrong parameter values the user must check the correct function of the plant in a conventional way both during and after commissioning and if required ensure manual shutdown 10 2 Setting the correct system parameters Caution It should be noted that the characteristics of the universal controller are determined primarily by the parameter ...

Страница 66: ...oftware ACS411 refer to program menu item Info Software documentation IMPORTANT PLEASE READ CAREFULLY 10 6 Procurement of PC software ACS411 For ordering the ACS411 software and updates please contact your supplier or heating engineer 10 7 Languages PC software ACS411 is available in English and German To select the language you require go to program menu item File Default settings Program languag...

Страница 67: ...for temporary use to make the parameter settings the configuration and for work in connection with commissioning When using the USB port the controller can be securely operated tested and set with no need for using the mains cable 10 11 2 Powering the controller via the USB port Powering the controller via the port If the controller shall be powered via the USB port a HUB with power supply is requ...

Страница 68: ...ead Write value can be read and written The number of characters specified under Data type in the case of character strings includes the final 0 Char10 means that the text is up to 9 characters long The final 0 character is then added to this 11 1 User level Address Access Data type Signal reference Parameter 0x0000 R O Float X1 Analog input InP1 0x0002 R O Float X2 Analog input InP2 0x0004 R O Fl...

Страница 69: ... 0x3012 R W Word tt Controlling element running time 0x3016 R W Float HYS1 Switch on threshold 0x3018 R W Float HYS2 Switch off threshold down 0x301A R W Float HYS3 Switch off threshold up 0x301C R W Float HYS4 Switch on threshold cooling 0x301E R W Float HYS5 Switch off threshold down cooling 0x3020 R W Float HYS6 Switch off threshold up cooling 0x3022 R W Float q Reaction threshold 0x3080 R W Fl...

Страница 70: ...at oLLo Lower working range limit 0x107F R O Float oLHi Upper working range limit 0x106D R W Word FnCt Alarm relay function 0x106F R W Float AL Alarm relay limit value limit value alarm 0x1071 R W Float HYSt Alarm relay hysteresis 11 4 Remote operation Address Access Data type Signal reference Parameter 0x0500 R W Word REM Activation remote operation 0x0501 R W Word rOFF Controller OFF in remote s...

Страница 71: ... 1 Output 3 Bit 2 Output 2 Bit 3 Output 4 Bit 8 Hysteresis limitation Bit 9 Control system Bit 10 Self optimization Bit 11 Second setpoint Bit 12 Measuring range overshoot InP1 Bit 13 Measuring range overshoot InP2 Bit 14 Measuring range overshoot InP3 Bit 15 Calibration mode 0x0201 R O Word Binary signals and hardware detection Bit 0 Operation mode 2 stage Bit 1 Manual mode Bit 2 Binary input D1 ...

Страница 72: ...during system commissioning Network topology Linear bus active bus terminator at both ends branching only permitted with baud rates of 1 5 Mbit s Medium Shielded twisted cable Number of stations 32 stations in each segment without repeaters With repeaters can be extended to 126 maximum of 9 repeaters permitted Connectors Preferably 9 pin D Sub connectors All devices must be connected in a line str...

Страница 73: ...d end of each segment the bus is terminated by terminators To enable fault free operation you must ensure that the two bus terminators are constantly supplied with power The terminators are located in the Profibus connectors and can be activated by moving the slide switch to ON Maximum 30 devices 7867z09e 0712 Figure 38 Bus terminator Bus terminator ...

Страница 74: ...x up the data lines You must use shielded data lines The braided shield and the foil shield underneath it where applicable should be connected at both sides and with a good conductive connection to protective ground Additionally where possible you must ensure that data lines are laid separately from all power cables As an example of an appropriate cable we recommend the following from Siemens Sima...

Страница 75: ...aves cyclically The bus cycle time must be shorter than the program cycle time of the central PLC As well as cyclical user data transfer Profibus DP is able to carry out high performance diagnostics and commissioning functions Technology transfer RS 485 twisted 2 wire line Baud rate of 9 6 kbit s upto 12 Mbit s Bus access Master and slave devices maximum 126 nodes on a bus with repeater Communicat...

Страница 76: ... are also defined The data traffic between the DP master and DP slaves is divided into parameter setting configuration and data transfer phases Before a DP slave is included in the data transfer phase the DP master checks in the parameter setting and configuration phase whether the desired configuration that has been configured matches the actual device configuration As part of this check the devi...

Страница 77: ...nd 12 3 Parameter list Signal reference Access Data type Parameter X1 RO Float Analog input InP1 X2 RO Float Analog input InP2 SP1 R W Float Setpoint 1 SP2 dSP R W Float Setpoint 2 RO Word Outputs and states RO Word Binary signal and Hardware character Pb1 R W Float Proportional range 1 dt R W Float Derivative action time rt R W Float Integral action time REM RO Word Status remote operation X3 RO ...

Страница 78: ...e sensor has a short circuit 1999 flashing Check to see if sensor and connecting line are damaged or have a short circuit Reference See chapter 4 3 Assignment of pins Check to see if the correct sensor is selected or connected Reference See chapter 14 1 1 Analog input InP1 actual value The yellow communication symbol top left flashes 7867z24 0612 Interface communication via Profibus Modbus or PC s...

Страница 79: ... range Line resistance Max 30 per line with 3 wire circuit Line balancing Not required with 3 wire circuits With 2 wire circuits line balancing can be performed by making an actual value correction Type Measuring range Measuring accuracy a Impact of ambient temperature Fe CuNi J DIN EN 60584 200 1200 C 328 2192 F 0 25 100 ppm K NiCr Ni K DIN EN 60584 200 1372 C 328 2502 F 0 25 100 ppm K Cu CuNi T ...

Страница 80: ... a Impact of ambient temperature Voltage DC 0 5 V 0 2 200 ppm K Input resistance RE 2 M Voltage DC 0 10 V 0 1 100 ppm K Input resistance RE 2 M Voltage DC 1 5 V 0 2 200 ppm K Input resistance RE 2 M Current 0 20 mA 0 1 100 ppm K Voltage drop 2 V Current 4 20 mA 0 1 100 ppm K Voltage drop 2 V a Accuracies relate to the maximum measuring range Standard signals ...

Страница 81: ...istance RE 2 M Current 0 20 mA 0 1 100 ppm K Voltage drop 2 V Current 4 20 mA 0 1 100 ppm K Voltage drop 2 V a Accuracies relate to the maximum measuring range 14 1 3 Analog input InP3 outside temperature For resistance thermometers in 2 wire circuit with fixed filter time constant Sampling time 6 s Type Measuring range Measuring accuracy a Impact of ambient temperature Pt1000 DIN EN 60751 200 850...

Страница 82: ...hnical data 05 11 2013 14 1 5 Binary input D2 Potentialfree contact for operating mode changeover Burner modulating if contacts D2 and DG are open LED operating mode 2 stage does not light up on the front Burner 2 stage if contacts D2 and DG are closed LED operating mode 2 stage lights up on the front ...

Страница 83: ... of error the outputs assume defined states configurable Measuring transducer Measured value crossed limit Sensor line has short circuit Sensor line interrupted Resistance thermometer Thermal elements Voltage DC 1 5 V DC 0 5 V DC 0 10 V Current DC 4 20 mA DC 0 20 mA detected detected only if measuring range is exceeded not detected Reference See chapter 13 1 Alarm messages ...

Страница 84: ...ct rating Max 2 A at AC 450 V and cosφ 0 6 Contact life 200 000 switching cycles at high fire Contact protection RC combination Relay K3 KQ controlling element CLOSE Contact rating Max 2 A at AC 240 V at cosφ 0 6 Contact life 200 000 switching cycles at high fire Contact protection RC unit Relay K6 NO contact 6P 6N multifunctional relay Contact rating Max 2 A at AC 240 V at cosφ 0 6 Contact life 2...

Страница 85: ...At the rear via screw terminals Cross sectional area 0 25 1 5 mm fine wired Stranded wire with Ferrules to DIN 46228 Pin type cable socket to DIN 46231 Crimp type cable socket in fork form for M3 thread dimensions to DIN 46237 With UL applications Use of the cable lug or ferrules to UL486A B UL listed or recognized Tightening torque 0 5 Nm Electromagnetic compatibility DIN EN 61326 1 Emitted inter...

Страница 86: ...tic conditions Class 3K3 Mechanical conditions Class 3M3 Temperature range 20 50 C Humidity 95 r h Installation altitude Max 2000 m above sea level Attention Condensation formation of ice and ingress of water are not permitted 14 8 Segment display Height of numerals Upper display 10 mm Lower display 7 mm Color Upper display Red Lower display Green Digits 4 including 0 1 or 2 decimal places configu...

Страница 87: ... diSP Display diSU Upper display dSP Setpoint dt Derivative action time dtt Remote Detection Timer End End value FnC2 Function FnC3 Function FnCt Function Ht1 Boiler temperature 1 Ht2 Boiler temperature 2 HYS1 Switch on threshold heating controller HYS2 Switch off threshold heating controller HYS3 Switch off threshold heating controller HYS4 Switch on threshold cooling controller HYS5 Switch off t...

Страница 88: ...CH2 End of display SCL1 Start of display SCL2 Start of display SEn1 Sensor type SEn2 Sensor type SEn3 Sensor type SiGn Signal type SP1 Setpoint 1 SP2 Setpoint 2 SPH Setpoint limitation end SPL Setpoint limitation start t Time t1 Power ON startup at actual value t2 Actual value of ramp stop outside tolerance band t3 Actual value returned to tolerance band t4 Setpoint reached thermal shock protectio...

Страница 89: ...re 13 Setpoint changeover SP1 external setpoint 30 Figure 14 Setpoint shifting analog binary 31 Figure 15 External setpoint setpoint shifting binary via dSP 32 Figure 16 Heating curve slope 33 Figure 17 Control sequence response threshold q 34 Figure 18 Control sequence Cold start of plant 35 Figure 19 Thermal shock protection TSS 37 Figure 20 Meaning of display and buttons 38 Figure 21 Display st...

Страница 90: ... Infrastructure Cities Sector 16 List of figures 05 11 2013 Figure 36 rt dt too large 64 Figure 37 Optimum adjustment 64 Figure 38 Bus terminator 73 Figure 39 Wiring and bus termination 75 Figure 40 User data transfer with Profibus DP 76 Figure 41 COM2 D SUB jack 77 ...

Страница 91: ...17 Installation notes 17 Safety regulations 17 Screw terminals 17 Suppression of interference 17 I Identification of product no 13 Location 13 Product nos 13 Scope of delivery 13 Type field 13 Installation 14 Cleaning the front 16 Dimensions 14 Installation site and climatic conditions 14 Mounting the controller in a panel cutout 15 Removing the controller from the panel cutout 16 Side by side mou...

Страница 92: ...r parameters 47 Parameterization PArA 46 PC software ACS411 Measuring accuracy 67 Operating systems 66 Powering the controller via the USB port 67 Use of USB port 67 Using the HUB 67 PC Software ACS411 Switching off 67 Profibus DP interface 72 Parameter list 77 RS 485 Technology transfer 72 Wiring 77 R RS 485 Technology transfer Basic features 72 Basic functions 75 Bus terminator 73 Cable data 74 ...

Страница 93: ...e Cities Sector 05 11 2013 Siemens AG Infrastructure Cities Sector Building Technologies Division Berliner Ring 23 D 76437 Rastatt Tel 49 7222 598 279 Fax 49 7222 598 269 www siemens com 2013 Siemens AG Infrastructure Cities Sector Building Technologies Division Subject to change ...

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