Siemens LMV50 Series Manual
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Table of Contents
LMV50... / LMV51... / LMV52...
Burner management system for forced draft
burners with the main functions:
- Burner control
- Fuel-air ration control
- Boiler controller / load controller
LMV50...
with specific functions for industrial applications
LMV52...
with additional O2 trim control
Basic Documentation
Based on the following
software versions:
LMV50... :
V10.30
LMV51... :
V05.20
LMV51.3... :
V05.20
LMV52.2.. :
V05.20
LMV52.4... :
V10.30
Int. LR module:
V02.10
Int. VSD module: V01.50
AZL52...:
V05.10
PLL52...:
V01.50
CC1P7550en
22.05.2018
The LMV5 and this Basic Documentation are intended for OEMs which integrate
the burner controls in their products!
Building Technologies
Table of Contents
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Summary of Contents for Siemens LMV50 Series

  • Page 1 LMV50… / LMV51... / LMV52… Burner management system for forced draft burners with the main functions: - Burner control - Fuel-air ration control - Boiler controller / load controller LMV50… with specific functions for industrial applications LMV52... with additional O2 trim control Basic Documentation The LMV5 and this Basic Documentation are intended for OEMs which integrate the burner controls in their products!
  • Page 2 Supplementary documentation Type of documentation Type of product No. of documentation AZL5 User Documentation A7550 LMV5 User Manual A7550.1 Basic diagram of LMV5 for 2 types of gas LMV5 User Manual A7550.3 Basic diagram of LMV5 for 2 types of liquid fuel LMV5 User Manual A7550.4...
  • Page 3: Table Of Contents

    Contents Safety notes ....................10 Warnings ....................... 10 Mounting notes ....................12 Installation notes .................... 14 Electrical connection of ionization probe and flame detector ......15 Commissioning notes ..................15 Setting and parameterization notes ............... 16 Standards and certificates ................17 Service notes ....................
  • Page 4 4.1.6.6 Operation indication gas / oil, type SI (X8-01) ..........57 4.1.6.7 Oil pump / magnetic clutch, type No-SI (X6-02) ..........58 4.1.6.8 Start signal or pressure switch relief valve, type No-SI (X4-03) ..... 58 Control sequence ................... 59 4.2.1 Parameters ....................
  • Page 5 Boiler controller / load controller ............. 100 General ......................100 Connection diagram ..................100 Operating modes load controller ..............101 7.3.1 Manual / automatic burner startup ............... 106 7.3.2 Operating mode changeover to internal load controller ....... 107 Control (characteristics) ................108 7.4.1 Integrated 2-position controller (R = ON/OFF) ..........
  • Page 6 Configuring the load controller ..............183 Control parameters of the load controller ............. 185 Connection terminals / coding of connectors ........... 190 10.1 Connection terminals LMV51.040x1 ............190 10.2 Connection terminals LMV51.000x1 / LMV51.000x2 / LMV51.040x2..191 10.3 Connection terminals LMV51.140x1 ............192 10.4 Connection terminals LMV51.100x1 / LMV51.100x2 / LMV51.140x2..
  • Page 7 19.2 Functioning principle of O2 trim control ............252 19.2.1 Air rate change .................... 252 19.2.2 Definition of O2 setpoint ................253 19.2.3 Lambda factor ....................253 19.3 Precontrol ....................254 19.3.1 Calculation of precontrol ................254 19.4 O2 trim control ..................... 255 19.4.1 Operating modes of O2 trim controller / O2 alarm ........
  • Page 8 19.13 Technical data ....................288 19.14 Loads on terminals, cable lengths and cross-sectional areas ..... 288 Flue gas recirculation (FGR) function (LMV50/LMV51.3/LMV52) ... 289 20.1 Function principle of flue gas recirculation (FGR) ........289 20.2 Parameter for the flue gas recirculation (FGR) function ......291 20.3 Setting electronic fuel-air ratio control in connection with flue gas recirculation (FGR)
  • Page 9 List of figures ..................... 324 9/327 Building Technologies Basic Documentation LMV5... CC1P7550en 22.05.2018...
  • Page 10: Safety Notes

    The LMV5 is a safety device! Do not open, interfere with or modify the unit. Siemens will not assume responsibility for any damage resulting from unauthorized interference! The chapters to the LMV50, LMV51.3 and LMV52 documentation contain additional warning notes which should also be observed when using these system versions.
  • Page 11 To ensure the safety and reliability of the LMV5, the following points must also be observed: ∂ Condensation and ingress of humidity must be avoided. Should such conditions occur, make sure that the unit will be completely dry before switching on again! ∂...
  • Page 12: Mounting Notes

    1.2 Mounting notes ∂ Ensure that the relevant national safety regulations are complied with ∂ In the geographical areas where DIN regulations apply, the requirements of VDE must be satisfied, especially the standards DIN/VDE 0100, 0550, and DIN/VDE 0722 ∂ M5 fixing screws in the LMV5 housing with a maximum tightening torque of 2 Nm.
  • Page 13 Notes on mounting the AZL5 7550m02e/1208 Figure 2: Mounting the AZL5 13/327 Building Technologies Basic Documentation LMV5... CC1P7550en 1 Safety notes 22.05.2018...
  • Page 14: Installation Notes

    1.3 Installation notes ∂ Ensure that the electrical wiring inside the boiler is in compliance with national and local safety regulations ∂ Do not mix up live and neutral conductors ∂ Make certain that strain relief of the connected cables is in compliance with the relevant standards (e.g.
  • Page 15: Electrical Connection Of Ionization Probe And Flame Detector

    1.4 Electrical connection of ionization probe and flame detector It is important to achieve practically disturbance- and loss-free signal transmission: ∂ Never run the detector cables together with other cables – Line capacitance reduces the magnitude of the flame signal –...
  • Page 16: Setting And Parameterization Notes

    A password protects the parameter setting level against unauthorized access. The OEM allocates individual passwords to the setting levels it can access. The standard passwords used by Siemens must be changed by the OEM. These passwords are confidential and may only be passed on to persons authorized to access such setting levels ∂...
  • Page 17: Standards And Certificates

    The electrical connections of the LMV5 and the PLL52 comply with the requirements of EN 60335-2-102. EAC Conformity mark (Eurasian Conformity mark) ISO 9001:2015 ISO 14001:2015 OHSAS 18001:2007 China RoHS Hazardous substances table: http://www.siemens.com/download?A6V10883536 17/327 Building Technologies Basic Documentation LMV5... CC1P7550en 1 Safety notes 22.05.2018...
  • Page 18 Note! When using the LMV5 in Australia, we strongly recommend that you use a BASE PAR GAS.par file to adapt the parameter set to the specific requirements of the Australian market. Please direct any queries to Siemens Australia. Β Note! With regard to the use of the LMV5 in safety-related systems up to SIL3, a manufacturer's declaration from Siemens AG is available.
  • Page 19: Service Notes

    1.8 Service notes If fuses are blown, the complete unit must be returned to Siemens. Β Notes! Only authorized persons may replace the fuse (in accordance with EN 298-1, chapter 9.2.r). 1.9 Life cycle The LMV5 burner control has a designed lifetime* of 250,000 burner startup cycles which, under normal operating conditions in heating mode, correspond to approx.
  • Page 20: General

    2 General 2.1 Brief description The LMV5 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. The following components are integrated in the LMV5: ∂ Burner control with gas valve proving system ∂...
  • Page 21 The LMV5 is operated and programmed with the help of the AZL5 or a PC software. The AZL5 with LCD clear text and menu-driven operation affords straightforward operation and targeted diagnostics. For making diagnostics, the LCD shows the operating states, the type of fault and the point in time the fault occurred.
  • Page 22: Block Diagram Of Inputs / Outputs

    2.2 Block diagram of inputs / outputs LMV5... LMV5... X8-01.1 Signal lamp gas X8-01.2 Signal lamp oil OIL + GAS X8-03.2 Auxiliary terminal for valves connected in series X8-03.3 X8-03.1 Fuel valve V1 (OIL) X8-02.2 Auxiliary terminal for valves connected in series X8-02.3 X8-02.1 Fuel valve V1 (OIL)
  • Page 23 Block diagram (cont‘d) Fuel valve V1 (GAS) Fuel valve V2 (GAS) Fuel valve PV (GAS) Fuel valve SV (GAS) OIL+GAS Power signal for Air pressure switch (LP) air pressure switch (LP) Fuel selection GAS Fuel selection OIL Fan condactor contact (GSK) or ARF-DW Lockout / manual locking ON/OFF Controller (ON/OFF)
  • Page 24 Block diagram (cont‘d) (02-D) Pt 100 Pt/Ni 1000 LINE SEK II SEK III SEK I 12V/1,2A 12V 0 0 12V DEFL (02-I) AGG5.2 SEK II 12VAC Brown CANH CANL 12VAC1 12VAC1 12VAC1 12VAC1 Brown 12VAC2 12VAC2 12VAC2 12VAC2 CANH CANL Figure 6: Block diagram –...
  • Page 25: Fuel Train (Examples)

    3 Fuel train (examples) Gas direct ignition Program Direct ignition Figure 7: Fuel train application – gas direct ignition Gas pilot ignition 1 Program Gas pilot 7550s02E/0202 Figure 8: Fuel train application – gas pilot ignition 1 Gas pilot ignition 2 Program Gas-Pilot 7550s17E/0202...
  • Page 26 Fuel train applications (cont‘d) Program Direct ignition with light oil, multistage 1-stage burner 7550s03E/0499 Figure 11: Fuel train application – light oil direct ignition, 1-stage Program 2-stage burner 7550s04E/0800 Figure 12: Fuel train application – light oil direct ignition, 2-stage Program 3-stage burner 7550s05E/0800...
  • Page 27 Direct ignition with Program light oil, modulating Modulating burner (without shutdown facility for adjustable head) 7550s06e/0308 Figure 14: Fuel train application – light oil direct ignition, modulating, without shutdown facility for adjustable head Program Modulating burner (with shutdown facility for adjustable head) 7550s07e/0308 Figure 15: Fuel train application –...
  • Page 28 Direct ignition with heavy oil, multistage 2-stage burner Figure 17: Fuel train application – heavy oil direct ignition, 2-stage Direct ignition with heavy oil, modulating Modulating burner Circulation from phase 38, max. 45 s, as soon as heavy oil direct start = ON in phase 38: ↑...
  • Page 29 Fuel valve control Heavy oil (direct transformer ignition) Legend (fuel trains) Heavy oil Air damper Safety time Fuel valve Ignition Figure 19: Fuel train application – fuel valve control Β Note on dual-fuel burner! Gas trains G, Gp1 and Gp2 can be randomly combined with oil trains LO and HO for operation with dual-fuel burners since these fuel trains operate independently.
  • Page 30 Dual-fuel burner gas / light oil with gas pilot ignition V1 gas V2 gas SV gas PV gas V2 oil V3 oil LOgp V1 oil SV oil 7550s15E/0202 Light oil Figure 20: Fuel train application – dual-fuel burner gas / light oil, with gas pilot ignition Fuel valve control Light oil (with gas pilot ignition) Legend (fuel trains)
  • Page 31 Dual-fuel burner gas / heavy oil with gas pilot ignition Figure 22: Fuel train application – dual-fuel burner gas / light oil, with gas pilot ignition Fuel valve control Heavy oil (with gas pilot ignition) Legend (fuel trains): Heavy oil Pilot valve TSA Safety time Fuel valve...
  • Page 32: Burner Control

    4 Burner control 4.1 Description of inputs and outputs This chapter describes the basic characteristics of the burner control’s inputs and outputs. For the valuation of inputs and the activation of outputs, refer to Sequence diagrams. 4.1.1 Flame signal input and flame detector Flame signal input The following connection facilities are provided: ∂...
  • Page 33: Separate Flame Supervision (Only Lmv50 / Lmv52)

    The self-test function of the QRI / QRA7 is triggered by increasing the supply voltage to the level of self-test voltage. During the following test time, the signal voltage at the output of the QRI / QRA7 changes to zero so that the LMV5 will receive the anticipated flame OFF signal as a response to the test.
  • Page 34: Qri (Suited For Continuous Operation)

    4.1.1.3 QRI (suited for continuous operation) Supply voltage operation / test at terminal Approx. DC 14 / 21 V POWER QRI (X10–02 pin 2) Required signal voltage at terminal FSV / Min. DC 3.5 V QRI (X10–02 pin 6) Display flame approx. 50% (with factory setting of the parameter StandardFactor) Permissible signal voltage during...
  • Page 35: Qra2 / Qra4 / Qra10 With Agq1 (For Intermittent Operation Only)

    4.1.1.5 QRA2 / QRA4 / QRA10 with AGQ1 (for intermittent operation only) Β Note! AGQ1 is only available for AC 230 V mains voltage. Power supply in operation DC 280…325 V Power supply in test mode DC 350…450 V Attention! In order to ensure that a higher voltage is supplied to the UV cell for the extraneous light test in phase 21 (via fan output X3-01 pin 1), parameter MinTmeStartRel (minimum time for phase 21) must be parameterized to at least...
  • Page 36 Assignment of LMV5terminals: Connection diagram LMV5... X10-02 pin 3 X10-02 pin 4 X10-03 pin 1 Ionization X3-01 pin 1 Color code: br = brown bl = blue sw = black gr = gray (old: rd = red) bl gr AGQ1...A27 Figure 26: Connection diagram QRA When laid together with other cables (e.g.
  • Page 37: Qra7 (Suited For Continuous Operation)

    4.1.1.6 QRA7 (suited for continuous operation) Supply voltage - QRA73A17 / QRA75A17 AC 120 V - QRA73A27 / QRA75A27 AC 230 V Power supply for test via increasing the From DC 14 V up to DC 21 V power supply for QRA7 (X10-02 pin 2) Required signal voltage Min.
  • Page 38: Qrb (For Intermittent Operation Only)

    4.1.1.7 QRB (for intermittent operation only) No-load voltage at the QRB terminal Approx. DC 8 V (X10-02 pin 1) Required detector current required Min. DC 30 µA, display flame 35% (with flame) (at factory setting of StandardFactor parameter) Permissible detector current during Max.
  • Page 39: Standardization Of Flame Signal Display Azl5

    4.1.2 Standardization of flame signal display AZL5 The flame signal display on the AZL5 can be standardized; this means that a display value of 100% can be assigned to any flame signal. This function is used for plants where the maximum flame signal has not reached a display of 100% in order to increase the display to 100% by means of standardization.
  • Page 40: External Flame Supervision (Lmv50 / Lmv52)

    4.1.3 External flame supervision (LMV50 / LMV52) Flame supervision can be performed by means of an external, approved (failsafe / self- checking) flame safeguard. The external flame safeguard must issue the flame signal (mains voltage ON/OFF) via a switching contact. The flame signal is evaluated at LMV5 input X6-01 pin 3 (HeavyOilDirStart ).
  • Page 41: High Temperature Supervision (Only Lmv50)

    4.1.4 High temperature supervision (only LMV50) Temperature supervision for high-temperature plants >750° to DIN EN 746-2. Replacement of flame supervision by supervising the combustion chamber wall temperature by means of an external safety limit thermostat to DIN EN 14597. The external safety limit thermostat must issue the high-temperature signal (mains voltage ON/OFF) via a switching contact.
  • Page 42: Digital Inputs

    4.1.5 Digital inputs 4.1.5.1 Safety loop / burner flange (X3-04 pin 1 / X3-03 pin 1) Β Note! All digital inputs are safety-related inputs. Using a contact feedback network (CFN), these contacts are read back by the microcomputers and checked for their correct positions.
  • Page 43: Manual Lockout / Reset

    4.1.5.2 Manual lockout / reset The system can be manually locked by simultaneously pressing the Esc and Enter Manual lockout buttons on the AZL5. This function allows the user to lock the system from the operating level. This means that the user can trigger an unchangeable lockout. Due to the system make-up, this is not an emergency stop function.
  • Page 44: Fuel Selector (X4-01 Pin 1 / X4-01 Pin 2)

    4.1.5.3 Fuel selector (X4-01 pin 1 / X4-01 pin 2) The fuel selector is given priority. It has the positions INT, GAS and OIL and is to be connected directly to the LMV5. It is possible to switch between oil-fired and gas-fired operation. When the fuel selector is set to INT, 1 of the other 2 sources can be selected (BACS or AZL5).
  • Page 45 Additional speed-dependent air pressure switch Not LMV51.0 / LMV51.1 In this setting, an additional speed-dependent air pressure switch can be connected at the input. The input is evaluated depending on the actual speed of the VSD. VSD air pressure switch ON VSD air pressure switch OFF Standard air pressure switch Speed (%)
  • Page 46: External Boiler Controller On/Off = Heat Request (X5-03 Pin 1)

    4.1.5.5 External boiler controller ON/OFF = heat request (X5-03 pin 1) When the external control loop is closed, the signal from the integrated controller (if Input for external controller present) is used to deliver the internal Heat request information to the input. (ON/OFF) There is heat request when this external controller signal is pending and –...
  • Page 47: External Boiler Controller Open/Closed Or Stage2 / Stage3

    4.1.5.6 External boiler controller OPEN/CLOSED or STAGE2 / STAGE3 (X5-03 pin 2 / X5-03 pin 3) 2 inputs (ON/OFF or STAGE2 / STAGE3) ( ▲ ▼ This input serves for the connection of an external controller with contact outputs. The input is only active when configured as External load controller.
  • Page 48: Air Pressure Switch (X3-02 Pin 1)

    4.1.5.7 Air pressure switch (X3-02 pin 1) An air pressure switch can be connected to these terminals. a) The input can be activated / deactivated. When the input is activated, air pressure is anticipated after the fan has been switched on. If there is no pressure signal, safety shutdown is initiated in any case.
  • Page 49 CPI Gas+Oil This input has been extended by the function of a CPI contact for oil valves. The valve closure contacts of the gas and oil valves must be connected in series and then to this input. Gas and oil-fired operation: In phases 12 to 38 and phases 72 to 78, a check is made to ensure that the input is set to On (valve closed) and in phases 54 and 60 to Off (valve open).
  • Page 50: Gas Pressure Switch-Min (X9-03 Pin 4)

    4.1.5.9 Gas pressure switch-min (X9-03 pin 4) The input is used for connecting the gas pressure switch-min. The input is only active when firing on gas and in the LOgp and HOgp programs until the end of second safety time. It can be deactivated for oil programs LOgp and HOgp. The signal is anticipated in phase 21.
  • Page 51: Start Release - Gas / Cpi (X7-03 Pin 2)

    4.1.5.10 Start release - gas / CPI (X7-03 pin 2) The input X7-03 pin 2 (StartReleaseGas) is used for connecting the start signal, e.g. from the release contact of an external outside air damper. The input is only active when firing on gas and in programs LOgp and HOgp until the end of second safety time.
  • Page 52 CPI Oil: This is used for checking the oil valves fully closed position. For that purpose, the valve closure contacts of the oil valves are to be connected in series and then to this input. The input is active both with gas-fired and oil-fired operation. Firing on oil: In the phases 12 to 38 and in the phases 72 to 78, the input is checked for ON (valve closed) and in phases 54 and 60, the input is checked for OFF (valve open).
  • Page 53: Gas Pressure Switch-Max (X9-03 Pin 3)

    4.1.5.11 Gas pressure switch-max (X9-03 pin 3) The input is used for connecting the gas pressure switch-max. It is only active when firing on gas. The signal is anticipated when first safety time starts. If the gas pressure is exceeded, safety shutdown is initiated in any case. The input can be deactivated.
  • Page 54: Oil Pressure Switch-Max (X5- 02 Pin 2)

    4.1.5.13 Oil pressure switch-max (X5- 02 pin 2) The input is used for connecting an oil pressure switch-max. It is active only when firing on oil. The maximum oil pressure must not be exceeded. If exceeded, at least 1 safety shutdown is initiated.
  • Page 55: Heavy Oil - Direct Start (X6-01 Pin 3)

    4.1.5.15 Heavy oil - direct start (X6-01 pin 3) The input is used for connecting a heavy oil direct start signal with which circulation phase 38 with HO, or phase 44 with HOgp, can be shortened. In the circulation phase, the waiting time for the signal is a maximum of 45 seconds. If the signal is not delivered, home run is triggered, followed by ↑...
  • Page 56: Digital Outputs

    4.1.6 Digital outputs Safety-related outputs, type SI These contacts are read back by the microcomputers via a contact feedback network (CFN) and then monitored for correct positions. Non-safety-related outputs, type No-SI These outputs are not monitored by contact feedback network and, for this reason, can only be used for non-safety-related actuating devices are actuating devices that are secured in some other form (e.g.
  • Page 57: Oil Valves, Type Si (X8-02, X8-03, X7-01, X7-02, X6-03)

    4.1.6.4 Oil valves, type SI (X8-02, X8-03, X7-01, X7-02, X6-03) These outputs are used for connecting the oil valves in accordance with the selected fuel train. ↑ Fuel trains, ↑ Sequence diagrams. Parameter FuelTrainOil (LightOilLO / HeavyOilHO / LO w Gasp / HO w Gasp) (Light oil with gas pilot and heavy oil with gas pilot may only be used in connection with Gp2)
  • Page 58: Oil Pump / Magnetic Clutch, Type No-Si (X6-02)

    4.1.6.7 Oil pump / magnetic clutch, type No-SI (X6-02) Applications with a separate oil pump or magnetic clutch This output can be used for connecting an oil pump or a magnetic clutch for an oil pump. The switch-on time can be parameterized together with preignition. In the case of dual-fuel burners, short preignition must be used (phase 38).
  • Page 59: Control Sequence

    4.2 Control sequence The sequence diagrams show the control sequence in detail (refer to chapter Sequence diagrams). 4.2.1 Parameters 4.2.1.1 Time parameter The most important time parameters for the control sequence are the following (for values, refer to Setting Lists, I7550): ∂...
  • Page 60 Examples of external flame supervision with a reaction time of the external flame safeguard of 1.4 second: ∂ At the basic setting for ReacTmeLossFlame of 0.2 second, safety time during operation is less than 2.6 seconds (0.2 second + 1 second + 1.4 second) ∂...
  • Page 61: Gas Valve Proving

    4.2.2 Gas valve proving Gas valve proving is only active when firing on gas. When a leak is detected, the gas valve proving function ensures that the gas valves are not opened and that ignition is not switched on. Safety shutdown is initiated. Example Step 1: t80 Evacuate the test space...
  • Page 62 Perform gas valve proving during shutdown. Recommendation Caution! The evacuation and filling times as well as the test times at atmospheric pressure or mains pressure must be set by the OEM, for each individual plant and in accordance with the requirements of EN 1643. In particular, it must be ensured that the 2 test times are set correctly.
  • Page 63: Special Functions During The Control Sequence

    4.2.3 Special functions during the control sequence 4.2.3.1 Lockout phase (phase 00) / safety phase (phase 01) The safety loop relays are deenergized, the alarm relay is activated, and lockout is initiated, which means that phase 00 can only be quit via manual reset. In terms of time, phase 00 is unlimited.
  • Page 64: Repetition Counter

    4.2.3.2 Repetition counter With heavy oil Repetition counter value: Heavy oil direct start Β Note: Changes only become active after a reset (power on / reset) With start release Repetition limit value: Start prevention Β Note: Changes only become active after a reset (power on / reset) With safety loop Repetition limit value: Safety loop Β...
  • Page 65: Signaling Of Start Preventions

    4.2.3.3 Signaling of start preventions If startup is prevented, it is always displayed on the AZL5. Startup is prevented only when there is a heat request and if 1 of the start criteria is not satisfied. The time from the moment start prevention occurs to the display on the AZL5 can be set via parameter DelayStartPrev.
  • Page 66: Prepurging

    4.2.3.6 Prepurging The prepurge position is approached in phase Traveling to prepurging (24). The prepurge time is determined via the following parameters: Parameter PrepurgeTmeGas PrepurgeTmeOil These 2 parameters determine the minimum prepurge time, provided the following parameters do not become effective. This means that the prepurge time is allocated to phases 30 through 34: In phase 30, the time defined in PrepurgePt1...
  • Page 67: Program Stop Function

    4.2.3.7 Program stop function To simplify burner adjustments during commissioning or in connection with maintenance work, the control sequence of the LMV5 can be stopped at the following points: Phase a) Air damper in the prepurge position b) Traveling to the flue gas recirculation (FGR) position 32 c) Ignition position d) Interval 1 e) Interval 2...
  • Page 68: Low-Fire Shutdown

    4.2.3.9 Low-fire shutdown To prevent the boiler from shutting down when operating at high-fire, the fuel-air ratio control system first changes to low-fire when there is no more request for heat from the controller. Only then do the valves close. The maximum time MaxTmeLowFire for changing to low-fire operation can be parameterized.
  • Page 69: Continuous Fan Operation

    4.2.3.11 Continuous fan operation In the case of burners that could be damaged by return heat (e.g. several burners operating on 1 combustion chamber), continuous purging can be activated. In that case, the fan runs in all phases. A pressure switch relief valve must be connected on the output (X4-03) so that the air pressure switch can be tested.
  • Page 70: Startup Sequence Stop In Phase 36

    4.2.3.14 Startup sequence stop in phase 36 The burner's startup sequence can be stopped in phase 36 via input X5-03 pin 3 if parameter Config X5-03 has been set to DeaO2/Stp36. The stop takes place if no mains voltage is present. Attention! This function may only be used for non-safety-related multiple burner applications.
  • Page 71: Selection Of Fuel

    4.2.4 Selection of fuel Selection of fuel on the The type of fuel is selected via the menu on the AZL5. AZL5 The selection is only possible when the fuel selector is set to INT (or when no selector is connected). Fuel selection is continuously stored via voltage-OFF, so that a valid fuel selection is present when power returns.
  • Page 72: Auxiliary Functions

    4.2.5 Auxiliary functions 4.2.5.1 Hours run counter The LMV5 has an hour’s run counter for gas-fired and oil-fired operation. The counters start from safety time 1 (phase 40) and are stopped at the end of operation (when leaving the 6X phases). The following counters are available and can be displayed using the AZL52 in the Operation / HoursRun menu;...
  • Page 73: Sequence Diagrams

    5 Sequence diagrams Gas direct ignition (G) Shutdown Valve proving TSA1 Timer - Result - Relationship Timer 1 Timer 2 Timer 3 = Phase max. time RAST plug Function inputs pin number X4-01 Pin 1 Operating mode gas X3-04 Pin 1 X60 Pin 1 / 3 X5-03 Pin 1 Controller ON / OFF...
  • Page 74 Gas pilot ignition 1 (Gp1) Shutdown Valve proving TSA2 TSA1 Timer - Result - Relationship Timer 1 Timer 2 Timer 3 = Phase max. time RAST plug Function inputs pin number X4-01 Pin 1 Operating mode gas X3-04 Pin 1 X60 Pin 1 / 3 X5-03 Pin 1 Controller ON / OFF...
  • Page 75 Gas pilot ignition 2 (Gp2) Shutdown Valve proving TSA2 TSA1 Timer - Result - Relationship Timer 1 Timer 2 Timer 3 = Phase max. time RAST plug Function inputs pin number X4-01 Pin 1 Operating mode gas X3-04 Pin 1 X60 Pin 1 / 3 X5-03 Pin 1 Controller ON / OFF...
  • Page 76 Light oil direct ignition (LO) Shutdown TSA1 Timer - Result - Relationship Timer 1 Timer 2 Timer 3 = Phase max. time RAST plug Function inputs pin number X4-01 Pin 2 Operating mode oil X3-04 Pin 1 X60 Pin 1 / 3 Controller ON / OFF X5-03 Pin 1 Flame signal...
  • Page 77 Heavy oil direct ignition (HO) Shutdown TSA1 Timer - Result - Relationship Timer 1 Timer 2 Timer 3 = Phase max. time RAST plug Function inputs pin number X4-01 Pin 2 Operating mode oil X3-04 Pin 1 X60 Pin 1 / 3 X5-03 Pin 1 Controller ON / OFF Flame signal...
  • Page 78 Light oil with gas pilot ignition (LOgp) Shutdown TSA2 TSA1 Timer - Result - Relationship Timer 1 Timer 2 Timer 3 = Phase max. time RAST plug Function inputs pin number X4-01 Pin 2 Operating mode oil X3-04 Pin 1 X60 Pin 1 / 3 X5-03 Pin 1 Controller ON / OFF...
  • Page 79 Heavy oil with gas pilot ignition (HOgp) Shutdown TSA2 TSA1 Timer - Result - Relationship Timer 1 Timer 2 Timer 3 = Phase max. time RAST plug Function inputs pin number X4-01 Pin 2 Operating mode oil X3-04 Pin 1 X60 Pin 1 / 3 X5-03 Pin 1 Controller ON / OFF...
  • Page 80 Legend to the sequence diagrams Phases Lockout phase Safety phase Homerun Standby (stationary) Shutoff valve ON (start release) Fan motor ON Prepurge position Prepurge time (tv1) Prepurge time (tv) Prepurge time (tv2) (flue gas recirculation FGR) Ignition position Preignition (Z) ON Burner valve ON Ignition OFF Interval 1 (ti1)
  • Page 81 Legend to the sequence diagrams (cont’d) Assignment of times: Postpurge lockout position Max. time safety phase Min. time home run Min. time start release Fan runup time Prepurge time part 1 Prepurge time part 3 Min. ON time oil pump Preignition time gas/oil Preignition time OFF Interval 1 gas/oil...
  • Page 82 Legend to the sequence diagrams (cont’d) Signal ON Signal OFF Next phase 00, repetition = 0 12, repetition > 0 Parameter NormalDirectstart Checking with controller ON Deviation ↑ 10 No repetition decrement Without valve proving ↑ 70 With valve proving ↑ 80 Stop, upto phase maximum time ↑...
  • Page 83 Legend to the sequence diagrams (cont'd) Indices: ValveProvingType ↑ Valve proving takes place between phases 30 / 32 and/or Parameter: phases 60 / 70 Parameter: Short / long preignition time for oil only Short / long oil pump – ON – time Delayed shutdown within safety time Parameter: Normal / direct startup...
  • Page 84: Fuel-Air Ratio Control (Farc)

    6 Fuel-air ratio control (FARC) 6.1 Actuator addresses The functions of the dampers are ready assigned to the addresses and are defined as follows: Addresses LMV51.0 / LMV51.1 Parameter AirActuator Air damper GasActuator Fuel 1 (gas) OilActuator Fuel 2 (oil) Auxiliary actuator 1 (e.g.
  • Page 85: Activating / Deactivating The Actuators

    6.2 Activating / deactivating the actuators If the auxiliary actuator is not needed, it must be deactivated. This can be carried out separately for both fuels. For LMV50 and LMV51.3, the variable speed drive / auxiliary actuator 3 (for flue gas recirculation) can be activated.
  • Page 86: Direction Of Rotation Of The Actuators

    6.3 Direction of rotation of the actuators The actuators' direction of rotation can be set in the Params & Display ⇓ Actuators ⇓ DirectionRot menu. This enables the direction of rotation to be matched to the mounting method. The direction of rotation must be selected before defining the ignition position and curvepoints.
  • Page 87: Control Sequence

    6.4 Control sequence The program phases are controlled by the burner control. They advance in tune with the fuel-air ratio control system. 6.4.1 Idle position In standby, the actuators are driven to their home positions. A deviation from the required position does not lead to lockout, but only to start prevention. The home position is defined for all actuators and can be adjusted differently for oil and gas.
  • Page 88: Startpoint Operation

    6.4.4 Startpoint operation When ignition has taken place and the flame has stabilized, the actuators must be brought to their ratio control positions. To do this, the LMV5 approaches the positions of the curvepoint, which was set using the StartPoint Op parameter. This enables a burner with a high modulation range during operation, which would not burn when started cold from the lowest modulation output, to be started with a higher initial output (determined by the StartPoint Op) parameter.
  • Page 89: Approaching Low Fire In Phase 50 / 54

    6.4.5 Approaching low fire in phase 50 / 54 For fuel trains with pilot ignition (Gp1, Gp2, LOgp, HOgp), the following parameter can be used to specify whether the actuators approach their ratio control positions in phase 54 or beforehand in phase 50. Parameter DriveLowfire Gas (LowfireP50 / LowfireP54) DriveLowfire Oil (LowfireP50 / LowfireP54)
  • Page 90: Postpurge Positions

    6.4.6 Postpurge positions When the burner is shut down, the actuators are driven to their postpurge positions in phase 72. For that purpose, a maximum time is available ↑ position check. The postpurge position is defined for all actuators and can be adjusted depending on the type of fuel.
  • Page 91: Actuator Speed In Normal Operation = Operatrampmod

    6.4.8 Actuator speed in normal operation = OperatRampMod Modulating Modulating operation is possible for both types of fuel, gas and oil. In the operating position, the dampers are driven to the defined ratio control curves in accordance with the required output. Up to 15 curvepoints can be defined. The spacing of the points (difference in output) can be freely selected.
  • Page 92: Multistage Operation

    6.4.9 Multistage operation Multistage Multistage operation is only possible when firing on oil. It is possible to parameterize if multistage or modulating operation is used. Electronic fuel-air ratio control can be configured for both 2-stage and 3-stage burners. In this operating mode, the oil actuator is not controlled. Multistage fuel-air ratio control is defined via different load points.
  • Page 93: Position Check, Dynamic Safety Time

    6.5 Position check, dynamic safety time Definition of Safety time fuel-air ratio control: ∂ Safety time fuel-air ratio control is the period of time during which deviations from the required position of 1 or several actuating devices are tolerated before the valves are shut down ∂...
  • Page 94 Pos. [°] Pos. [°] Alarm + Value Pos. tolerance + Value Pos. tolerance Required position Required position - Value Pos. tolerance - Value Pos. tolerance < 5 s < 5 s Figure 41: Successful correction <2° Fault < 2° (Stall point at constant output) The required position is considered to be reached when it is within °...
  • Page 95 Tolerance Actuator / variable speed drive 0.3°/0.5% 0.4°/0.5% 0.5°/0.5% Display on the 0.6°/0.6% AZL52 ● ● ● 1.2°/1.2% Figure 43: Display on AZL52 Β Note! The parameter influences the tolerance of the position assessment for all actuators (actuators and variable speed drive) at the same time. Attention! This parameter may only be set in a way that does not affect the combustion.
  • Page 96: Special Features

    Outside the In the phases where the actuators are driven to 1 of the special positions (home, operating position prepurge, ignition or postpurge position), there is no continuous position check. To make possible the change to the next phase, the required position must be reached. To travel to the required position, the maximum time available is 35 seconds or 20% longer than the time parameterized for TmeNoFlame.
  • Page 97: Limitation Of Load Range

    6.6.2 Limitation of load range The curves are defined by the 2 limits: Low-fire and nominal load (maximum load). In certain cases, it has proven practical to limit the burner’s output, either temporarily or permanently. This limitation of the burner’s working range can make sense in both directions. The burner’s working range then looks as follows: Pos.
  • Page 98: Masking Out A Load Range

    6.6.3 Masking out a load range Here, it is possible to set a load range that is not constantly approached. Example: LoadMaskLowLImit LoadMaskHighLimit 53% The system travels to a load of 45% from below and waits there until the preset load of 53% is reached or exceeded.
  • Page 99: Overload Protection

    6.6.6 Overload protection If the actuators block, lockout is enforced. However, if the actuators cannot reach the positions required by lockout, they would be damaged due to overtemperatures. To prevent this, the actuators are deactivated after a maximum time of 35 seconds, or at 20% above the value parameterized for TmeNoFlame.
  • Page 100: Boiler Controller / Load Controller

    7 Boiler controller / load controller 7.1 General The boiler controller integrated in the LMV5 is a digital PID boiler temperature controller / a boiler pressure controller, which depends on the connected boiler sensor. The controller can be operated using self-setting = adaption or by manually setting the controller parameters (P, I, and D parts).
  • Page 101: Operating Modes Load Controller

    7.3 Operating modes load controller For the connection of a load controller, the LMV5 can be operated in different configurations. In that case, the internal load controller, different external load controllers, or a load controller via BACS can be used. To ensure all involved bus users (LMV5, load controller, AZL5) are correctly configured, global parameter LC_OptgMode is defined.
  • Page 102 Internal load controller Operating mode 2 (intLC) In this operating mode, the load controller inside the LMV5 is used (standard application). The manipulated variable and the request for heat are internally generated and handled. Terminals X62 pin 1 and X62 pin 2 can be used to make an external changeover between the internal setpoints W1 and W2.
  • Page 103 BACS for control via bus with the internal load controller. Operating mode 3 The internal load controller is connected via the AZL5 and an external bus interface (int LC bus) (Modbus) with a BACS. The BACS transmits «only» predefined setpoints to the internal controller.
  • Page 104 BACS for control via analog input with the internal load controller. In principle, identical Operating mode 4 to operating mode 3, except that the BACS delivers the predefined setpoint via analog (int LC X62) input 3 (SETPOINT INPUT). Terminals X62 pin 1 and X62 pin 2 can be used to make a changeover from externally (e.g.
  • Page 105 The internal load controller is used for translating the analog load signal to the CAN bus Operating mode 5 protocol. The internal control algorithm is not active. BACS for control (or external (Ext LC X62) controller) with analog predefined manipulated variable (load signal) to the controller inside the LMV5.
  • Page 106: Manual / Automatic Burner Startup

    BACS for control with digital predefined load via bus. Operating mode 6 The LMV5 is connected to a BACS via the AZL5 and an external bus interface (e.g. (Ext LC bus) Modbus). The BACS contains the controller and transmits the load (manipulated variable) and the heat request to the LMV5.
  • Page 107: Operating Mode Changeover To Internal Load Controller

    7.3.2 Operating mode changeover to internal load controller To improve availability, a potential-free contact at inputs X62 pin 1 / X62 pin 2 can be used to switch from any of the other operating modes to the internal load controller. In that case, setpoint W1 applies.
  • Page 108: Control (Characteristics)

    7.4 Control (characteristics) Operating mode The load controller can operate in 2 different operating modes: ∂ Modulating, or ∂ Multistage With electronic fuel-air ratio control, modulating or multistage mode must be selected, depending on the type of burner. Parameter Operation Mode (Two-stage / Three-stage / Modulating) 7.4.1 Integrated 2-position controller (R = ON/OFF) General The integrated 2-position controller transmits to the burner control section the internal...
  • Page 109: Modulating Control

    7.4.2 Modulating control General When selecting Gas, the LMV5 will automatically operate in modulating mode. For this reason, parameterization is not required when firing on gas. When selecting Oil, the operating mode is to be set to modulating, if required, using parameter Operation Mode of the electronic fuel-air ratio control system.
  • Page 110: Manual Setting Of The Pid Control Parameters

    7.4.2.1 Manual setting of the PID control parameters It is possible to manually set the PID parameters to any value in the setting range shown below, to activate a triple value from the predefined standard values described below (and edit it further if required), or to use the adaption function (self-setting function) instead of making the settings manually.
  • Page 111: Adaption / Self-Setting Of Pid Controller Parameters

    7.4.2.2 Adaption / self-setting of PID controller parameters The load controller integrated in the LMV5 is capable of identifying the controlled system, of calculating its PID parameters based on the acquired characteristic data, and of resetting the parameters. In modulating mode, the adaption function is available for both temperature and pressure control.
  • Page 112 Adaption sequence Manual operation, Manual operation, Automatic operation, Automatic operation, shutdown or standby startup or operation shutdown or standby startup or operation Change to automatic operation Burner OFF Burner ON, low-fire Burner OFF Burner ON, low-fire Waiting until actual value < setpoint minus 5 % Setting phase of controlled system, fixed at 5 min Evaluation of development of actual value.
  • Page 113 Optimum adaption of the controllers to the controlled system can be checked by Checking the control recording the actual value during startup while the controlled system is working. The parameters diagrams below reveal incorrect settings and give hints on remedy. Here, the behavior of a controlled system of 3rd order for a PID controller is shown.
  • Page 114 Settling of the manipulated variable is used in modulating mode to avoid unnecessary Settling of the drive pulses, thus extending the life of the controlling elements. manipulated variable Settling of the manipulated variable is active across the entire working range so that a neutral zone is no longer required.
  • Page 115: Multistage Control

    7.4.3 Multistage control General When selecting Oil, the LMV5 must be set to 2-stage or 3-stage, depending on the type of burner, using parameter Operation Mode (refer to chapter Control characteristics). In these 2 operation modes, the PID algorithm is not required and is not calculated. Maximum 3 fuel stages are activated and deactivated depending on the actual values, efer to chapter Integrated 2- the parameterized switching differentials_Stage1...3 (r...
  • Page 116 Example 1: Reaction thresholds Q2 and Q3 for switching stages 2 and 3 on are not Function diagrams reached. In this case, stage 1 is already switched off when threshold W+SD_Stage3Off is reached (low-fire operation). Setpoint Actual value SD_Stage1Off SD_Stage2Off SD_Stage3Off SD_Stage1On R=ON...
  • Page 117: Actual Values (X)

    7.5 Actual values (X) Measuring accuracy: Min. °1% of the measuring range (excluding the sensor error). Definition of sensors (incl. activation / deactivation of the temperature limiter function): Pt100 Temperature sensor Pt100 at the input X60, internal temperature limiter activated function = Pt1000 Temperature sensor Pt1000 at the input X60, internal temperature limiter...
  • Page 118 3-wire circuit (copper wires); line balancing is not required when the resistances of the Input 1, TEMP, measuring leads are identical. Pt100 sensor (DIN) The temperature limiter function is active. The end of the measuring range of 150 °C, 400 °C or 850 °C depends on the parameterization.
  • Page 119 Start of measuring range: 0 bar (0 psi) Measuring range pressure (can be parameterized) End of measuring range: Continuously up to 100 bar (1,450 psi) Detection of sensor short-circuit and line interruption is provided (distance from ends of the measuring range about 10% of the measuring range). In the case of DC 0...10 V / 0…20 mA signals, the detection of short-circuits and line interruptions is not possible.
  • Page 120: Setpoints (W)

    7.6 Setpoints (W) Internal setpoint Using the AZL5, 2 setpoints (W1 and W2) can be adjusted. It is not possible to adjust a temperature controller setpoint to a level above the actual limit value of the integrated function. The setting range automatically corresponds to the temperature limiter parameterized measuring range of the actual value.
  • Page 121 If parameterized for Int LC X62, the input signal is converted to pressure or temperature External predefined according to the parameterization of the measuring range and interpreted as the boiler’s setpoint setpoint. The setting range automatically corresponds to the parameterized measuring range of the actual value and can also be limited.
  • Page 122 External predefined load, Stage 1 Stage 2 Stage 3 multistage I (mA) U (V) The detection of short-circuits and line interruptions is ensured – similar to the sensor inputs. External setpoint In operating mode 2 (intLC), changeover between the 2 internally defined setpoints W1 changeover and W2 can be implemented by means of an external (potential-free) contact.
  • Page 123: Integrated Temperature Limiter Function

    7.7 Integrated temperature limiter function The temperature limiter function is implemented as a «safety-related» function. This means that the function is single-error-proof, which means that a single error cannot negate the protective function of the controller and the temperature limiter. The temperature limiter works similar to the 2-position controller but with a separate limit value that can only be changed after entry of a password.
  • Page 124 If the internal function is used, the time constant «T» of the Requirements placed on temperature limiter temperature sensor with protection pocket must not exceed 45 seconds. sensor and protection pocket Ι 0.63 7550d19E/0502 Time t Figure 60: Instant temperature change of test medium to determine the time constant Legend Ι...
  • Page 125: Cold Start Thermal Shock Protection (Cstp)

    7.8 Cold start thermal shock protection (CSTP) Thermal shock protection can be activated and deactivated. A differentiation is made between modulating and multistage control. The cold start sequence is activated when, upon startup, the actual value lies below the ON threshold). If thermal shock protection is activated, the manipulated variable on cold start is increased in a stepwise fashion using the set load step (or the next stage is activated).
  • Page 126: Cold Start Thermal Shock Protection - Multistage Operation

    7.8.2 Cold start thermal shock protection – multistage operation The difference between multistage and modulating control is that with multistage control, the output steps are defined by the number of burner stages. With modulating control, any output value in % can be entered. With multistage control, a maximum of 3 output stages are available: 1.
  • Page 127: Cold Start Thermal Shock Protection With Temperature Sensor In Pressure Plants

    7.8.3 Cold start thermal shock protection with temperature sensor in pressure plants In pressure plants, thermal shock protection can also be implemented with a temperature sensor (additional sensor), as an alternative to the pressure sensor. If an additional temperature sensor is installed and activated (Additional Sensor set to Pt100 or Pt1000 or Ni1000), for the CSTP function the temperature signal from this additional sensor is used instead of the pressure signal from the boiler controller and also the temperature setpoint for the additional sensor (Setpoint AddSens) is used.
  • Page 128: Analog Output X63 (0(4)

    7.9 Analog output X63 (0(4)...20 mA) The active analog output X63 (0(4)...20 mA) is used to deliver the current output or another system value. The output value can be determined using the OutValuSelection parameter. If a voltage signal is required, it can be made available by connecting a resistor (max. 500 ς).
  • Page 129: Multiboiler Plants

    7.10 Multiboiler plants Boiler sequence control is accomplished with the help of external devices or control systems (e.g. BACS or PCs). In principle, 2 choices are available: 7.10.1 Multiboiler plants by means of analog input For that purpose, the load controller of the LMV5 has an analog input (X62). This means that the individual boilers can be…...
  • Page 130: Display And Operating Unit Azl5

    8 Display and operating unit AZL5 Figure 63: Display and operating unit AZL5 130/327 Building Technologies Basic Documentation LMV5... CC1P7550en 8 Display and operating unit AZL5 22.05.2018...
  • Page 131: Assignment Of Azl5 Terminals

    8.1 Assignment of AZL5 terminals COM2 CAN L COM 2 VAC 2 4, 6 GND CAN H VAC 1 Jack RJ45 Operating field COM1 Jack Figure 64: Assignment of AZL5 terminals The AZL5 has three different interfaces (connections): COM1 X71 Port for PC (RS-232); for parameterization and visualization with the help of the PC software, SUB-D 9 pins COM2 X72 Port for BACS (RJ45-jack) via external bus interface (RS-232 or RS-485) CAN X70...
  • Page 132 PC COM to the PC 9-pin connector 9-pin socket (null modem cable) 7550t01E/0502 Figure 65: Connecting cable to the PC Pin assignment cable connection Siemens AZL5 - Trebing & Himstedt SPI3 Trebing & Himstedt AZL5 Trebing & Himstedt Converter AZL5 SUB-D...
  • Page 133: Ports Of The Azl5

    8.2 Ports of the AZL5 The AZL5 has 3 ports (connections): ∂ Port for the LMV5: CAN bus including power supply for the AZL5 (Sub-D connector on the underside of the AZL5) ∂ Port for the PC / laptop: RS-232 (Sub-D jack under the cover of the AZL5 front) ∂...
  • Page 134: Port For The Pc

    8.2.1 Port for the PC Communication with the PC takes place via the COM1 port of the AZL5 (RS-232). The PC software ACS450 offers the following operating functions: ∂ Readout of settings, operating states, types of error, and points in time the errors occur (LMV5) ∂...
  • Page 135: Interface To Bacs

    Remote Terminal Unit. For detailed information, refer to the document Modbus AZL5 A7550. Standardized interfacing software is available on request. Example: Interconnection of Siemens Simatic S7 and LMV5 Figure 67: Connection to superposed systems ∂ Boiler sequence control (max. 8 boilers)
  • Page 136 Examples: Connection Siemens Simatic S7-1200 and LMV5 SIMATIC Panel 7550z33e/0113 KP/KTP/TP ACS450 PC tool MODBUS (RS-232, P2P) CAN bus Figure 68: Connection for LMV5 to SIMATIC S7-1200 via Modbus 7550z34e/0113 Figure 69: Connection for several LMV5s to SIMATIC S7-1200 via common Modbus...
  • Page 137 Examples: Connection Siemens ET 200S and LMV5 SIMATIC Panel 7550z38e/0113 ACS450 PS-Tool MODBUS (RS-232, P2P) CAN bus Figure 71: Connection for LMV5 to ET 200S via Modbus • Field installation Modbus RTU MODBUS RTU (RS-485) (P2 multi P) 7550z39e/0113 RS-232/RS-485 Figure 72: Connection for several LMV5s to ET 200S via common Modbus •...
  • Page 138: Interface For The Output Of Trending Data

    8.2.3 Interface for the output of trending data The COM2 X72 interface (RJ45-jack on the underside of the AZL5) can also be used as an output for delivering trending data by setting the Type of Gateway parameter to Data output. The interface configuration for Modbus is also active for this.
  • Page 139: Displays And Settings

    8.3 Displays and settings 8.3.1 Menu structure Main menu level Display of operation Normal operation Presetting without pressing the buttons Resetting Fault history Lockout history Boiler setpoint Operation Type of fuel Date, time of day Hours run Start counter Number of lockouts Burner ID Selection of operating mode Manual operation...
  • Page 140: Display Of Normal Operation

    8.3.2 Display of normal operation Below, the most important displays of normal operation and examples of Lockout and start prevention messages and Parameterization are defined. In normal operation, the display shown is the default display which automatically appears and which is maintained as long as no settings are made and no unusual events like faults or start preventions occur.
  • Page 141 Display normal operation STARTUP VI (Phase 38) (cont‘d) STARTUP VII (Phases 40, 42, 44) STARTUP VIII (Phases 50, 52) STARTUP IX (Phase 54) OPERATION I (Phase 60) ° ° OPERATION II (Phase 62) S H U T D O W N (Phase 70) S H U T D O W N (Phase 72)
  • Page 142 Display normal operation S H U T D O W N (Phases 74...78) (cont‘d) S H U T D O W N ( P h a s e 7 9 ) V A L V E P R O V I N G ( P h a s e s 8 0 .
  • Page 143: Lockout And Error Messages

    8.3.3 Lockout and error messages S A F E T Y P H A S E ( P h a s e 0 1 ) L O C K O U T ( P h a s e 0 0 ) 8.3.3.1 Example: Display of lockouts in the lockout history In the event lockout occurs, the display alternates at 5-second intervals.
  • Page 144 Lockout and error messages Example: Immediate display of lockouts (cont‘d) In the event lockout occurs, the display alternates at 5-second intervals. Example: Immediate display of safety shutdowns In the event of safety shutdown, the display alternates at 5-second intervals. Example: Immediate display of warnings In the event of warnings, the display alternates at 5-second intervals.
  • Page 145: Standard Parameterizations (Inclusive Entry Of Password)

    8.3.4 Standard parameterizations (inclusive entry of password) For t he complet e param eter lis t, refer t o Set t ing L ist I7550 . Menu selection A main menu item is selected as follows: & Calling up and selection To indicate a selection, the first letter of the menu item is shown with a flashing pointer.
  • Page 146 ∂ The passwords are linked to the access levels (Service, OEM, SBT). This means that OEM = burner manufacturer the parameters available for editing are only those associated with the access level SBT = Siemens ∂ When leaving the parameter setting level, a backup is offered Start display...
  • Page 147 First submenu level Example: Calling up and selecting submenu BurnerControl Second submenu level Example: Calling up and selecting submenu Times Third submenu level Example: Calling up and selecting submenu TimesStartupx 147/327 Building Technologies Basic Documentation LMV5... CC1P7550en 8 Display and operating unit AZL5 22.05.2018...
  • Page 148 Fourth submenu level Example: Calling up and selecting parameter PrepurgeTmeGas Setting the parameter: After the required parameter has been called up and selected, the display shown below appears. Lines Curr and New show identical values at first, namely the actual parameter value The pointer automatically points to the colon on line New.
  • Page 149: Addressing / Function Assignment Of Actuators

    8.3.5 Addressing / function assignment of actuators To make the addressing, the actuator must be opened. A button and an LED are located behind the actuator’s removable plastic cover. In connection with addressing with the help of the AZL5, the button is used to define the address of an actuator.
  • Page 150 Operational status indication by LED on the actuator: Unaddressed actuator Air actuator Gas actuator Oil actuator Auxiliary actuator 1 Auxiliary actuator 2 7550d50en/0118 Time Figure 76: LED function code The actuator gives the addressing address via the blinking signal of the LED. The blink interval is 200 ms.
  • Page 151: Setting The Fuel-Air Ratio Control Curves

    8.3.6 Setting the fuel-air ratio control curves The following chapter deals with the parameterization of the Fuel-air ratio control. S e l e c t i o n m e n u R a t i o c o n t r o l The selection menu looks as follows: The selection of 3) through 7) leads to standard parameterizations of the specified parameters.
  • Page 152: Adjusting The Curves By Introducing Or Editing An Individual Point

    This setting of the curve can be made in 2 different ways: 1. Individual points are specifically entered. 2. Ratio control is operated in manual operation until the value reached is to be stored as a new point. A more detailed description of both approaches is given below: 8.3.6.1 Adjusting the curves by introducing or editing an individual point In this setting mode, an individual curvepoint is edited by acknowledging the pointer on...
  • Page 153 - Continue by pressing Enter ⇒ § This selection can be used to determine whether the load and the positions of the selected curvepoint shall be approached. Hence, curvepoints can be changed without having to drive to them. The following description also applies to without driving, but the load and the positions will not be approached: Caution! Curvepoints that have been changed via the without driving function must be...
  • Page 154 After the selected curvepoint has been reached by the system: - Continue by pressing Enter ⇒ Now, the selected parameter can be changed online. This means that the system follows the changes at the rate of the selected ramp speed. Press Enter to save the changed values.
  • Page 155 C a n c e l i n g a c u r v e p o i n t When accessing this menu, the pointer is positioned on Point. To cancel a curvepoint, the pointer must be positioned on Point. - Pointer positioned on Point: - Continue by pressing Enter ⇒...
  • Page 156: Curve Setting Via Manual Operation

    8.3.6.2 Curve setting via manual operation In addition to curve settings by means of individual point entry, it is also possible to adjust the burner in manual operation with optional point storage. The procedure is the following: After leaving menu item CurveParams, position the pointer on Man when reaching the menu.
  • Page 157 4. Setting the ignition positions The system continues the startup sequence and stops in phase 36 IgnitPos. Now, the ignition positions can be set on menu SpecialPositions. Then, set ProgramStop to 72 PostPPos, if operation shall immediately follow. To readjust the ignition positions after the burner has ignited: Set ProgramStop to 44 Interv 1 or 52 Interv 2 for pilot ignition after the pilot flame has been shut down.
  • Page 158 90° Pos. FUEL 0° 100 % 7550d09e/0704 Load Figure 80: Adjustment of the actuator positions via the load with multiple points Using this method, up to 15 points can be defined. 6. Shutdown Params & Display ↑ Ratio Control ↑ Autom/Manual/Off Via menu: or via: Manual Operation ⇓...
  • Page 159: Setting Modulating Ratio Control

    8.3.6.3 Setting modulating ratio control Refer to selection menu Setti ngs G as 8.3.6.4 Setting multistage ratio control With multistage fuel-air ratio control, the position values can be changed in 2 different ways: 1. Presetting the positions with no response by the actuators to fine-adjust the points later using followed.
  • Page 160 Now, the value can be changed and the respective actuator follows at the rate of the set ramp speed. Enter saves the value, Esc discards it. This way, all stages can be set, one by one. The following table shows the response of the system when a point is selected. However, the relevant valve is switched on only when at least the switch-on point is definitely used (÷...
  • Page 161: Adaption Of The Load Controller's Pid Parameters

    8.3.7 Adaption of the load controller's PID parameters Sequence steps of adaption (self-setting): 1) Starting the adaption Using the AZL5 menu, the heating engineer manually activates the adaption function of the load controller. After selecting menu item Adaption (within the parameterization of the load controller), the following display appears: , The pointer is positioned on Start Adaption.
  • Page 162 2) End of a successful adaption After adaption, the relevant characteristics are displayed. By pressing the Selection buttons, the P-, I- and D-parts as well as the acquired loop delay time «Tu» are displayed: < > < > < > <...
  • Page 163: Burner Identification / Backup - Restore

    So, it is possible to have data transmission between the LMV5 and the AZL5 of 1 plant (burner IDs are identical) and between an AZL5 and a new LMV5 (burner ID as supplied by Siemens). Data transmission between the AZL5 and LMV5 of different plants (burner IDs not identical) is not possible (no «cloning»!).
  • Page 164: Real Time Clock / Calendar, Automatic Summer / Wintertime Changeover

    8.3.10 Real time clock / calendar, automatic summer / wintertime changeover The LMV5 is equipped with a real time clock including calendar and backup, which are accommodated in the AZL5. The clock features automatic summer- / wintertime changeover. S/W changeover The following parameter setting choices are available: Parameter Sum/WinterTime (Manual / Automatic)
  • Page 165: Tüv Test

    8.4 TÜV test Caution! The TÜV test function must be performed by authorized personnel. It is possible to activate… ∂ the loss-of-flame test, and ∂ the safety limit thermostat test Loss-of-flame test The loss-of-flame test is activated manually with the AZL5 via the SafetyCheckFunct ⇓ LossFlameTest menu and generates an electronic interruption of the flame signal.
  • Page 166: Commissioning Instructions For The Lmv5

    9 Commissioning instructions for the LMV5 Practice-oriented setting instructions for the system configuration, the burner control, and the electronic fuel-air ratio control system These setting instructions serve for commissioning the LMV5. To access the parameter setting levels, a password must be entered. After having entered the correct password, the data appear on the AZL5 (backup for emergencies).
  • Page 167 4. Setting gas valve proving Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params & Display BurnerControl ValveProving ValveProvingType Selection of gas valve proving: No VP, VP startup, VP shutdown or VP stup/shd (↑...
  • Page 168 6. Selecting the actuator’s direction of rotation Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params & Display Actuators DirectionRot DeleteCurves 1 AirActuator 2 GasActuat(Oil) 3 OilActuator 4 AuxActuator 5 AuxActuator2 6 AuxActuator3 Select the direction of rotation with standard or Reversed.
  • Page 169 7. LMV50/LMV51. In accordance with the application (with or without auxiliary actuator) and the type of activating and fuel, the auxiliary actuator can be activated, deactivated or – in connection with the deactivating the LMV50 / LMV51.3 – be used as a VSD and/or auxiliary actuator 3 for the flue gas recirculation function (refer to chapter Actuator addresses).
  • Page 170 8. Setting the load controller (option) Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params & Display LoadController Configuration LC_OptgMode Select a load controller operating mode in accordance with the examples given in chapter Operating modes with load controller ON.
  • Page 171: Settings For Gas-Fired Operation

    9.2 Settings for gas-fired operation The next steps explain how the fuel-air ratio control system is to be set. Specific curves are required for each type of fuel. 10. Activating program Activate a program stop when startup shall be stopped to set the special positions. stops in different program phases Prepurging...
  • Page 172 13. Actuator positions The burner control stops startup during the prepurge phase (phase 24). during the prepurge time The positions of the actuators for prepurging can thus be set very straightforwardly. Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6...
  • Page 173 15. Setting the curve First setting The burner travels to the ignition load. The burner’s output should now be increased manually and in steps of the curve settings until the rated capacity (100%) is reached. During the manual action, the actuators travel on the interpolated straight line to the maximum position of 90°...
  • Page 174 Example: Point Order of setting Output 100% 8.6° 28.0° 43.0° 62.5° 81.5° 10.5° 28.8° 46.0° 55.7° 70.8° 20.3° 30.0° 45.0° 52.0° 60.0° Fuel / air ratio control Gas actuator position Air actuator position Auxiliary actuator 100 % Load [%] Figure 81: Fuel-air ratio control Changing an existing curve The curvepoints can be changed either during burner off periods (phase 12) or during burner operation (phase 60).
  • Page 175 Creating a new curvepoint To create a new curvepoint, select Manual. Set the output of the new point and acknowledge by pressing Enter. During the manual action, the actuators travel on the interpolated straight lines between the curvepoints. After pressing Enter, each individual actuating device can be selected to optimize the position.
  • Page 176: Settings For Multistage Oil-Fired Operation

    9.3 Settings for multistage oil-fired operation 18. Fuel changeover Fuel changeover on the AZL5 is possible only if input FuelSelect is set to internal. for oil-fired operation Set fuel selection to Oil or set the external fuel selector to Oil. Menu level 1 Menu level 2 Menu level 3...
  • Page 177 21. Checking and For the parameters HomePos, Prepurge position and Postpurge position, the parameter set supplied offers presettings. These should be checked and, if necessary, adapted, presetting the ignition positions for firing on oil either now or during the following program stops. There is no presetting for the ignition position.
  • Page 178 24. Ignition positions The burner control proceeds with the startup sequence until the ignition position (phase 36) is reached. There, the burner control stops again for setting the ignition positions of the actuators. Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6...
  • Page 179 25. Setting the burner The burner operates at ignition load or with the first burner stage. The positions of the stages actuators can now be changed. Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params &...
  • Page 180 Example: Stage S2 on S2 off S3 on S3 off 35.0° 43.0° 45.0° 53.0° 61.0° 62.0° 69.0° 13.0° 28.0° 20.0° 43.0° 50.0° 50.0° 54.0° Fuel-air ratio (multistage operation) 100 % Load [%] S2 OFF S2 ON S3 OFF S3 ON Air actuator positions "up"...
  • Page 181: Extra Functions Of The Lmv5

    9.4 Extra functions of the LMV5 27. Valve leak test (valve proving) Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params & Display BurnerControl ValveProving ValveProvingType Config_PS-VP/CPI VP_EvacTme VP_TmeAtmPress VP_FillTme VP_Tme_GasPress The gas volume contained in the piping between the valves (including the valve volume) must be calculated in accordance with the type of gas train.
  • Page 182 = 30 mbar Example 1 (calculation = 15 mbar of test time) P atm = 1013 mbar = 3 l Q Leck = 50 l/h (30 - 15) mbar 3600 s / h • • t Test =  = 3,2 s 1013 mbar 50 l/h •...
  • Page 183: Configuring The Load Controller

    9.5 Configuring the load controller ↑ Operating modes with the load controller Selection of operating mode Example: Internal load controller with Pt1000 sensor. Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params &...
  • Page 184 Then, the temperature measuring range must be defined. Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params & Display LoadController Configuration MeasureRange PtNi 150°C/302°F 400°C/752°F 850°C/1562°F 184/327 Building Technologies Basic Documentation LMV5... CC1P7550en 9 Commissioning instructions for the LMV5 22.05.2018...
  • Page 185: Control Parameters Of The Load Controller

    9.6 Control parameters of the load controller The control parameters can be defined in 3 different ways. 1. Selection of The memory of the load controller contains 5 standard parameter sets. standard parameter set Depending on the characteristics of the controlled system, a PID triple value can be selected and activated.
  • Page 186 Temperature limiter The integrated temperature limiter observes a separate temperature limit. function (for details, refer to Integrated temperature limiter function). After the switch-off point in °C for the temperature limiter has been entered, the relative switch-on point in % is given. Example: TW_Threshold_Off: 80 °C...
  • Page 187 2-position controller Example: Modulating control (C = ON/OFF) After the boiler setpoint in °C has been entered, the switch-on and switch-off point of the 2-position controller in % is given. The switching points are calculated in relation to the current setpoint. Example: Setpoint: 70 °C...
  • Page 188 Cold start thermal shock When the cold start thermal protection function is activated, a boiler – after having protection (CSTP) dropped below a predefined switch-on threshold – is heated up in multistage operation. This approach ensures that when cold, the boiler does not have to satisfy the maximum request for heat within a very short period of time.
  • Page 189 Menu level 1 Menu level 2 Menu level 3 Menu level 4 Menu level 5 Menu level 6 Params & Display LoadController ColdStart ColdStartOn ThresholdOn StageLoad StageStep_Mod StageStep_Stage MaxTmeMod MaxTmeStage ThresholdOff 189/327 Building Technologies Basic Documentation LMV5... CC1P7550en 9 Commissioning instructions for the LMV5 22.05.2018...
  • Page 190: Connection Terminals / Coding Of Connectors

    10 Connection terminals / coding of connectors 10.1 Connection terminals LMV51.040x1 7550z43/1114 Figure 86: Connection terminals LMV51.040x1 190/327 Building Technologies Basic Documentation LMV5... CC1P7550en 10 Connection terminals / coding of connectors 22.05.2018...
  • Page 191: Connection Terminals Lmv51.000X1 / Lmv51.000X2 / Lmv51.040X2

    10.2 Connection terminals LMV51.000x1 / LMV51.000x2 / LMV51.040x2 7550z44/1114 Figure 87: Connection terminals LMV51.000x1 / LMV51.000x2 / LMV51.040x2 191/327 Building Technologies Basic Documentation LMV5... CC1P7550en 10 Connection terminals / coding of connectors 22.05.2018...
  • Page 192: Connection Terminals Lmv51.140X1

    10.3 Connection terminals LMV51.140x1 7550z45/1114 Figure 88: Connection terminals LMV51.140x1 192/327 Building Technologies Basic Documentation LMV5... CC1P7550en 10 Connection terminals / coding of connectors 22.05.2018...
  • Page 193: Connection Terminals Lmv51.100X1 / Lmv51.100X2 / Lmv51.140X2

    10.4 Connection terminals LMV51.100x1 / LMV51.100x2 / LMV51.140x2 7550z46/1114 Figure 89: Connection terminals LMV51.100x1 / LMV51.100x2 / LMV51.140x2 193/327 Building Technologies Basic Documentation LMV5... CC1P7550en 10 Connection terminals / coding of connectors 22.05.2018...
  • Page 194: Connection Terminals Lmv51.300X1 / Lmv51.300X2 / Lmv52.200X1 / Lmv52.200X2 / Lmv52.240X2 / Lmv52.400X1 / Lmv52.400X2

    10.5 Connection terminals LMV51.300x1 / LMV51.300x2 / LMV52.200x1 / LMV52.200x2 / LMV52.240x2 / LMV52.400x1 / LMV52.400x2 7550z47/0514 Figure 90: Connection terminals LMV51.300x1 / LMV51.300x2 / LMV52.200x1 / LMV52.200x2 / LMV52.240x2 / LMV52.400x1 / LMV52.400X2 194/327 Building Technologies Basic Documentation LMV5... CC1P7550en 10 Connection terminals / coding of connectors 22.05.2018...
  • Page 195: Connection Terminals Lmv51.340X1 / Lmv52.240X1 / Lmv52.440X1 / Lmv52.440X2

    10.6 Connection terminals LMV51.340x1 / LMV52.240x1 / LMV52.440x1 / LMV52.440x2 7550z48/0514 Figure 91: Connection terminals LMV51.340x1 / LMV52.240x1 / LMV52.440x1 / LMV52.440X2 195/327 Building Technologies Basic Documentation LMV5... CC1P7550en 10 Connection terminals / coding of connectors 22.05.2018...
  • Page 196: Coding Of Connectors

    10.7 Coding of connectors Figure 92: Coding of connectors 196/327 Building Technologies Basic Documentation LMV5... CC1P7550en 10 Connection terminals / coding of connectors 22.05.2018...
  • Page 197 AGG5.720 Standard connector set LMV50/LMV51 for gas / oil applications with up to 3 actuators. Standard connector set LMV52 for gas / oil applications with up to 3 actuators. LMV5 Terminal Description designation RAST5 X3-01 Alarm, fan X3-02 Air pressure switch (APS) X3-03 Burner flange X3-04...
  • Page 198 AGG5.721 Extension connector set LMV5 LMV5 Terminal Description marking RAST3.5 [ / ] Actuator (5 pins) [ / ] 4-pin connector 2 x [ / ] 5-pin connector 1 x [ / ] 6-pin connector 1 x RAST5 Transformer prim I Power supply sec II AC12 V 1 / AC 12 V 2...
  • Page 199: Description Of Connection Terminals (Ac 120 V)

    Description of connection terminals (AC 120 V) Connection symbol Description of connections Electrical rating AC 120 V +10 % / -15 %, 50...60 Hz, PIN 1 Fan motor contactor ˜ 1 A, (pilot duty), cosι 0.4 X3-01 AC 120 V +10 % / -15 %, 50...60 Hz, PIN 2 Alarm ˜...
  • Page 200 Description of connection terminals (cont’d) Connection symbol Description of connections Electrical rating PIN 1 Protective earth (PE) ˜ AC 120 V +10 % / -15 %, 50...60 Hz, X5-01 PIN 2 Pressure switch min-oil (Pmin-oil) ˜ Imax 1.5 mA Power signal for pressure switch- AC 120 V +10 % / -15 %, 50...60 Hz, PIN 3 ˜...
  • Page 201 Description of connection terminals (cont’d) Connection symbol Description of connections Electrical rating PIN 1 Protective earth (PE) ˜ PIN 2 X7-01 Neutral conductor (N) ˜ AC 120 V +10 % / -15 %, 50...60 Hz, PIN 3 Fuel valve 2 (oil) 1.6 A, (pilot duty), cosι...
  • Page 202 Description of connection terminals (cont’d) Connection symbol Description of connections Electrical rating AC 120 V +10 % / -15 %, 50...60 Hz, PIN 2 Firing on oil ˜ 1 A, cosι 0.4 X8-01 AC 120 V +10 % / -15 %, 50...60 Hz, PIN 1 Firing on gas ˜...
  • Page 203 Description of connection terminals (cont’d) Connection symbol Description of connections Electrical rating PIN 4 Neutral conductor (N) ˜ AC 120 V +10 % / -15 %, 50...60 Hz, Max. 1 mA PIN 3 Power signal transformer ˜ X10-01 PIN 2 AC power signal G0 ˜...
  • Page 204 Description of connection terminals (cont’d) Connection symbol Description of connections Electrical rating PIN 6 Reference ground (PELV) ˜ PIN 5 Communication signal (CANL) ˜ DC U ↔ 5 V, Rw = 120 ς, level to ISO-DIS 11898 PIN 4 Communication signal (CANH) ˜...
  • Page 205 Description of connection terminals (cont’d) Connection symbol Description of connections Electrical rating Temperature / pressure controller PIN 5 Functional earth for shield connection ˜ PIN 4 Reference ground ˜ PIN 3 Temperature sensor input Pt / LG-Ni 1000 ˜ (Input 4, TEMP.) PIN 2 Line compensation temperature sensor ˜...
  • Page 206: Description Of Connection Terminals (Ac 230 V)

    12 Description of connection terminals (AC 230 V) Connection symbol Description of connections Electrical rating AC 230 V +10 % / -15 %, 50...60 Hz, PIN 1 Fan motor contactor ˜ 1 A, cosι 0.4 X3-01 AC 230 V +10 % / -15 %, 50...60 Hz, PIN 2 Alarm ˜...
  • Page 207 Description of connection terminals (cont’d) Connection symbol Description of connections Electrical rating PIN 1 Protective earth (PE) ˜ AC 230 V +10 % / -15 %, 50...60 Hz, X5-01 PIN 2 ˜ Pressure switch min-oil (Pmin-oil) Imax 1.5 mA Power signal for pressure switch- AC 230 V +10 % / -15 %, 50...60 Hz, PIN 3 ˜...
  • Page 208 Description of connection terminals (cont’d) Connection symbol Description of connections Electrical rating PIN 1 ˜ Protective earth (PE) PIN 2 X7-01 ˜ Neutral conductor (N) AC 230 V +10 % / -15 %, 50...60 Hz, PIN 3 Fuel valve 2 (oil) 1 A, cosι...
  • Page 209 Description of connection terminals (cont’d) Connection symbol Description of connections Electrical rating AC 230 V +10 % / -15 %, 50...60 Hz, PIN 2 ˜ Firing on oil 1 A, cosι 0.4 X8-01 AC 230 V +10 % / -15 %, 50...60 Hz, PIN 1 ˜...
  • Page 210 Description of connection terminals (cont’d) Connection symbol Description of connections Electrical rating PIN 4 ˜ Neutral conductor (N) AC 230 V +10 % / -15 %, 50...60 Hz, Max. 1 mA PIN 3 ˜ Power signal transformer X10-01 PIN 2 AC power signal G0 ˜...
  • Page 211 Description of connection terminals (cont’d) Connection symbol Description of connections Electrical rating PIN 6 ˜ Reference ground (PELV) PIN 5 ˜ Communication signal (CANL) DC U ↔ 5 V, Rw = 120 ς, PIN 4 level to ISO-DIS 11898 ˜ Communication signal (CANH) PIN 3 ˜...
  • Page 212 Description of connection terminals (cont’d) Connection symbol Description of connections Electrical rating Temperature / pressure controller PIN 5 Functional earth for shield connection ˜ PIN 4 Reference ground ˜ PIN 3 Temperature sensor input ˜ Pt / LG-Ni 1000 (Input 4, TEMP) PIN 2 Line compensation temperature sensor Pt100 ˜...
  • Page 213: Mounting , Electrical Installation And Service

    ∂ To isolate the unit from mains supply, a multipolar switch must be used ∂ For wiring the bus users, only the cables specified by Siemens may be used! ∂ The electrical contacts used by the external signal sources (pressure switch- min, pressure switch-max, load controller, etc.) must be gold-plated silver...
  • Page 214: Power Supply To The Lmv5

    13.1 Power supply to the LMV5 General The LMV5 is powered via external transformer AGG5.2. This transformer supplies power to certain electronics sections via terminal X10-01, and to internal modules, actuators and AZL5 via terminal X52. Run the power lines to the bus users together with the communication lines in a common cable.
  • Page 215: Examples Of Various Installation Situations

    13.1.1 Examples of various installation situations Installation of all components in the burner; CAN bus cable LMV5 ♠ last Example 1 actuator <20 m SA 1 SA 2 SA 3 SA 4 Fixed internal bus connection SQM4... SQM4... SQM4... SQM4... AZL5...
  • Page 216 LMV5 in the control panel, actuator on the burner; CAN bus cable LMV5 ↑ last Example 2 actuator >20 m Control cabinet Burner SA 1 SA 2 SA 3 SA 4 SQM4... SQM4... SQM4... SQM4... AZL5... Sub-D Max. cable length connector from power supply of actuator 3 m...
  • Page 217 Installation of all components in the burner; CAN bus cable LMV52 ♠ last Example 3a actuator >20 m with 6 actuators and PLL52 SA 1 SA 2 SA 3 SA 4 SA 5 SA 6 SQM45... SQM45... SQM45... SQM45... PLL52... SQM4...
  • Page 218 Β Note on example 3a/3b! CAN bus cable with LMV52 and more than 4 actuators and PLL52. On LMV52 applications with more than 4 actuators (SQM45), a second transformer is required to power the extra actuators. In that case, transformer 1 powers the LMV52, the AZL5, and the first 4 actuators. Β...
  • Page 219: Determination Of The Maximum Cable Length Agg5.6

    Installation of all components in the burner; CAN bus cable LMV52 ♠ last Example 3c actuator <20 m with 4 actuators and PLL52 SA 1 SA 2 SA 3 SA 4 SQM45... SQM9... PLL52... SQM4... SQM4... AZL5... Sub-D Max. cable length connector from power supply Max.
  • Page 220 AGG5.641 (cable type 1) LMV5 ♠ actuator Types of cable Connection Color Cross-sectional area in mm² 12 VAC 1 White 1.25 12 VAC 2 Brown 1.25 CANH Yellow 0.25 CANL Green 0.25 Shield Black Figure 100: AGG5.641 AGG5.631 (cable type 2) LMV5 ♠ AZL5 Connection Color Cross-sectional area...
  • Page 221 Diagram 1 for cable length SQM45 / SQM48 Cross-section area in for AC1 and AC2 AGG5.631(cable type 2) AGG5.641(cable typep 1) 1 x SQM45... 2 x SQM45... 1 x SQM45... + 1 x SQM48... 3 x SQM45... 2 x SQM45... + 1 x SQM48... 4 x SQM45...
  • Page 222 Diagram 2 for cable length SQM45 / SQM48 and SQM9 Cable AGG5.641 (cable type 1) Cross-section area in for AC1 and AC2 AGG5.631(cable type 2) AGG5.641(cable type 1) 1 x SQM91... 2 x SQM91... 1 x SQM48... + 1 x SQM91... 1 x SQM45...
  • Page 223: When Is A Second Agg5.2 Power Transformer Required

    13.1.3 When is a second AGG5.2 power transformer required? The table shows examples of components groups that can be operated with just one power transformer (including LMV5, AZL52, and PLL52): Group SQM45 SQM48 SQM9 Diagram 1 Diagram 1 Diagram 1 Diagram 2 Diagram 2 Example:...
  • Page 224: Suppliers Of Other Accessory Items

    13.2 Suppliers of other accessory items 13.2.1 Mounting clip for mounting rail Mounting clip for mounting rail order no. 2309.000 Rittal GmbH & Co. KG Auf dem Stützelberg 35745 Herborn Germany Tel: 0049 / 2772 / 505-0 Fax: 0049 / 2772 / 505-2319 www.rittal.de Figure 105: Mounting clip 13.2.2 eBus PC adapter...
  • Page 225: Duties Of The Authorized Inspector

    14 Duties of the authorized inspector Prior to approval, the manufacturer must state the assigned DIN registration number and product ID number, confirming that the LMV5 complies with the type-tested system. Also, only the components specified for use with the LMV5 (AZL5, actuating devices, flame detectors, transformer, and CAN bus cable) may be used and, in addition with the LMV52, the PLL52 and the QGO20 In the case of VSD operation, we recommend to use the AGG5.310 accessory set for acquiring the fan speed.
  • Page 226 Correct parameterization The parameterized values and setting values (e.g. curve characteristics) that define the of the system fuel-air ratio control system and – if used – the O2 trim control must be documented by the individual responsible for plant / the heating engineer after the plant is installed and commissioned.
  • Page 227 Burner control section Fuel train parameterization (G, Gp1, Gp2, LO, HO, LOgp, HOgp, refer to chapter 3 Fuel train (examples) must be checked prior to commissioning to ensure it agrees with the fuel trains implemented on the burner and to make certain the valves are correctly assigned to the valve outputs on the LMV5.
  • Page 228 O2 trim control The O2 trim control system of the LMV52 offers a number of operating modes. In (only with LMV52 operating mode conAutoDeac, O2 trim control is automatically deactivated by the system) LMV52 if the O2 alarm responds, or if a fault in connection with actual value acquisition of O2 occurs (QGO20, PLL52, O2 sensor test, etc.).
  • Page 229: Technical Data

    15 Technical data 15.1 LMV5 and AZL5 LMV5 Mains voltage AC 120 V AC 230 V -15% / +10% -15% / +10% Β Note! Only for use in earthed networks! Transformer AGG5.210 / AGG5.220 - Primary side AC 120 V AC 230 V - Secondary side 1 AC 12 V...
  • Page 230: Loads On Terminals, Cable Lengths And Cross-Sectional Areas

    15.2 Loads on terminals, cable lengths and cross- sectional areas Loads on input terminals General data Mains voltage AC 120 V AC 230 V -15% / +10% -15% / +10% ∂ Perm. mains primary fuse (external) Max. 16 AT Max. 16 AT ∂...
  • Page 231 Total load on contacts Loads on output terminals Mains voltage AC 120 V AC 230 V -15% / +10% -15% / +10% ∂ Input current of unit (safety loop) Max. 5 A Max. 5 A total load on contacts resulting from: - Fan motor conductor - Ignition transformer - Valve...
  • Page 232: Cross-Sectional Areas

    (single- or multi-core to VDE 0100) Cable insulation must satisfy the requirements of the relevant temperature and environmental conditions. The CAN (bus) cables have been specified by Siemens and can be ordered as accessory items. Other types of cables must not be used.
  • Page 233: Can Bus Cable

    15.5 CAN bus cable Types of cable AGG5.641 8 mm dia. +0,5 / -0,2 mm Bending radius: ≥120 mm Ambient temperature: -30...+70 °C (cable not moving) Cable jacket resistant to almost all types of mineral oil AGG5.631 7.5 mm dia. ±0.2 mm Bending radius: ≥113 mm Ambient temperature: -30...+70 °C (cable not moving)
  • Page 234: Dimensions

    16 Dimensions Dimensions in mm LMV5 17,4 15,7 44,4 30,3 46,6 78,5 82,3 23,2 49,25 26,8 34,9 44,4 34,55 Figure 106: Dimensions of LMV5 234/327 Building Technologies Basic Documentation LMV5... CC1P7550en 16 Dimensions 22.05.2018...
  • Page 235 Dimensions in mm AZL5 Battery compartment 39,5 20,5 26,7 (25,5) 90,2 42,5 1) Clamping range min. 1 mm, max. 5 mm Figure 107: Dimensions of AZL5 235/327 Building Technologies Basic Documentation LMV51... CC1P7550en 16 Dimensions 22.05.2018...
  • Page 236 Dimensions in mm AGG5.210 / AGG5.220 93.6 77.8 66.3 AGG5.210: 120 V coil AGG5.220: 230 V coil 12 V coil 7550m04e/0906 12 V coil 102.5 + 0.5 Figure 108: Dimensions of AGG5.210 / AGG5.220 AGQ1.xA27 Type Measure AGQ1.2A27 AGQ1.3A27 1200 90,5 7435m01/0301 Figure 109: Dimension AGQ1.xA27...
  • Page 237: Block Diagram Of Contact Links

    17 Block diagram of contact links Figure 110: Block diagram of contact links for LMV5 237/327 Building Technologies Basic Documentation LMV5... CC1P7550en 17 Block diagram of contact links 22.05.2018...
  • Page 238: Vsd Module

    18 VSD module Only LMV50 / LMV51.3 / LMV52 General The VSD module is an internal extension to the LMV5 (PBC) and is used for the control of VSD that ensure safety-related supervision of the fan speed. 2 fuel meters (oil and gas) can be connected as an option. Basic diagram Release Speed setpoint 0/4...20 mA...
  • Page 239: Vsd Module

    18.1 VSD module General A VSD can be connected to the VSD module integrated in the LMV5. The VSD is controlled via an analog current output and a potential-free release contact. Evaluation of the alarm feedback signal from the VSD is accomplished with a 0...24 V output.
  • Page 240 Analog output to This output is used for delivering the preselected speed setpoint to the VSD. the VSD X73 pin 4 0/4...20 mA ≡ 0...105% (↑ Standardization of speed) Current: max. 750 ς (burden), short-circuit-proof Output load: Resolution: 0.1% ″0.1 mm Cross-sectional area of wire: Quick shutdown in the This function is used to trigger safety shutdown as quickly as possible (within about 1...
  • Page 241 Safe separation between mains voltage and protective extra low-voltage Caution! All inputs and outputs of the VSD module comply with the requirements for protective extra low-voltage. Hence, the mains voltage section must be strictly separated! Sensor disk Sensor disk and speed sensor can be ordered as accessory set AGG5.310. Number of tappets: Angular steps: 60°, 120°, 180°...
  • Page 242 Fuel meter To acquire the amount of fuel consumed, up to 2 fuel meters can be connected. Assignment to the type of fuel is fixed. To adapt to different types of fuel meters, assignment of the number of pulses and the resulting fuel throughput must be parameterized.
  • Page 243: Configuring The Vsd

    18.1.2 Configuring the VSD The VSD must be configured in accordance with the type of motor connected. The acceleration and deceleration ramps must be set about 30% shorter than the ramps parameterized in the electronic fuel-air ratio control system of the LMV5. Example: Drive ramp of 10 seconds ⇑...
  • Page 244: Speed Standardization

    18.1.4 Speed standardization Standardization Since the standardized speed is difficult to adjust – but the correct adjustment has a great impact on the control performance of the VSD module – an automatic measurement function has been implemented. Β Note! ∂ The speed should be standardized in standby mode ∂...
  • Page 245: Configuring The Current Interface

    18.1.5 Configuring the current interface The VSD is controlled via a current interface which can be switched from 0...20 mA to 4...20 mA, or vice versa. Β Note! If the VSD requires an input signal of DC 0...10 V, a resistor of 500 ς °1% must be connected parallel to its input.
  • Page 246: Fuel Meter Readings

    18.1.7 Fuel meter readings The VSD module ascertains the cumulated gas or oil throughout. For each type of fuel, there is 1 resettable and 1 nonresettable meter available. When resetting the fuel meters, the reset date is stored. The system continuously calculates the throughput of the selected type of fuel. The calculation time is dynamic and reaches from 1 to 10 seconds.
  • Page 247: Process Data

    18.1.8 Process data In its operating position, the VSD module records data that show how well the system components work together (LMV5, VSD module, VSD, motor, and LMV5). These data can only be read. The maximum static deviation indicates the greatest speed deviation that occurred during a drive command in modulating operation.
  • Page 248: Emc: Lmv5 - Vsd

    18.2 EMC: LMV5 – VSD The function and EMC tests of the LMV5 were conducted and successfully completed with the following types of VSD: Siemens: - Micromaster 440 Danfoss: - VT2807 In operation, VSDs produce electromagnetic interference. For this reason – to ensure EMC of the entire system –...
  • Page 249: Connection Terminals

    18.3 Connection terminals Also refer to chapter Connection terminals / coding of connectors. Figure 115: Connection terminals of LMV5 Shielding: Optional shield connection for arduous environmental conditions Alternative connection of VSD, refer to documentation of used VSD 249/327 Building Technologies Basic Documentation LMV5...
  • Page 250: Description Of Connection Terminals For The Vsd Module

    18.4 Description of connection terminals for the VSD module Connection symbol Description of connection Electrical rating VSD module PIN 1 Approx. 10 V ˜ Power supply for speed sensor Max. 45 mA Usensor 2 Wire Uin max = DC 10 V PIN 2 Pulse-IN Speed input...
  • Page 251: O2 Trim Control With Lmv52 And Pll52

    19 O2 trim control with LMV52 and PLL52 19.1 General The LMV52 is an extended LMV51. A special feature of the LMV52 is control of the residual O2 content to increase the boiler’s efficiency. In addition to the features of the LMV51, the LMV52 provides O2 trim control, control of a maximum of 6 actuators, control of a VSD, and acquisition of cumulated fuel consumption and current fuel throughput.
  • Page 252: Functioning Principle Of O2 Trim Control

    19.2 Functioning principle of O2 trim control The residual O2 control system reduces the amount of combustion air depending on the control deviation (O2 setpoint minus actual of O2). The amount of combustion air is normally influenced by several actuators and, if used, by a VSD. Reduction of the amount of air is reached by reducing the «air rate»...
  • Page 253: Definition Of O2 Setpoint

    19.2.2 Definition of O2 setpoint Using the ratio control curve as a basis, the O2 setpoint is adjusted by manually lowering the air rate. ⇑ The system stores the O2 ratio value, the O2 setpoint, and the relative air rate reduction (standardized value required to attain the O2 setpoint).
  • Page 254: Precontrol

    19.3 Precontrol As a result of the measurements made when setting the O2 setpoint, the properties and the behavior of the burner are learned. Based on the type of fuel, the O2 ratio value, the O2 setpoint, and the standardized value, precontrol calculates the air rate reduction such that changes in burner load do not require the O2 trim controller to interfere.
  • Page 255: O2 Trim Control

    19.4 O2 trim control 19.4.1 Operating modes of O2 trim controller / O2 alarm The O2 trim controller or O2 alarm can be deactivated or activated in various operating modes by setting a parameter. Caution! The ratio control curves must always be adjusted such that there are sufficient amounts of excess O2 available, irrespective of environmental conditions! man deact Both the O2 trim controller and O2 alarm are deactivated.
  • Page 256 O2 trim control in operation is activated only when the operating temperature is reached and the O2 sensor test has been successfully completed. If the O2 maximum value alarm responds, or if an error occurs in connection with O2 measurement, the O2 module, the O2 sensor, or the sensor test, OptgMode is automatically switched to auto deact.
  • Page 257: Load Limitation With O2 Trim Control

    19.4.2 Load limitation with O2 trim control O2 trim control becomes inactive below the low-fire adaption point LowfireAdaptPtNo. Parameter Gas: LowfireAdaptPtNo Oil: LowfireAdaptPtNo If O2 trim control and O2 alarm are to be inactive below a higher output, the O2 CtrlThreshold parameter is also available.
  • Page 258: Burner Start Mode For O2 Trim Control (Only Lmv52.4, Only In Operating Modes O2 Control And Conautodeac)

    19.4.5 Burner start mode for O2 trim control (only LMV52.4, only in operating modes O2 Control and conAutoDeac) This startup behavior startup behavior was implemented specially for use with super- low NOx burners (burner head with metal mesh), as these types of burners require the burner to be started at the O2 setpoint.
  • Page 259: Initializing And Release Of The O2 Trim Controller

    Load at which a system is ignited with O2 trim control and Startmode parameter set to Ign Load TC. Parameter Gas: Load of Ignition Oil: Load of Ignition 19.4.6 Initializing and release of the O2 trim controller Parameter setting standard With this setting, the LMV52 behaves as it did before this parameter was introduced.
  • Page 260 Parameter setting Ign Load TC The burner is ignited at the temperature-compensated ignition load and is put into operation with the O2 trim controller initialized. The trim controller is initialized when driving to ignition load. The system is therefore not started with excess O2 from the ratio control curves, but using the O2 setpoint instead.
  • Page 261: Modulation Release On Startup

    19.4.7 Modulation release on startup Parameter setting standard Modulation by the load controller is always enabled when the system is put into operation. Parameter settings Ign Load TC, IgnPtWithTC or IgnPtWoutTC With these options, the burner is put into operation straight away with the O2 trim controller initialized.
  • Page 262: Increasing The Manipulated Variable In Case Of Fast Load Changes (O2Modoffset, Formerly O2Offset)

    19.4.9 Increasing the manipulated variable in case of fast load changes (O2ModOffset, formerly O2Offset) When changing the load under unfavorable setting conditions, it could happen that the actual O2 value drops below the O2-min-limit. In order to prevent this, the user can use parameters to set an offset for the O2 value in the event that a fast load change occurs.
  • Page 263: Control Interventions (Switching Functions) By The O2 Trim Controller

    19.4.10 Control interventions (switching functions) by the O2 trim controller In order to prevent the burner from receiving insufficient amounts of air when the load changes, the O trim controller contains additional functions which can be used when the startmode parameter is set to standard. These become active if the O2 trim controller or precontrol is not optimally adjusted, or if the burner’s behavior cannot be adequately mapped by the measured values.
  • Page 264: Limiting The O2 Trim Controller Manipulated Variable With Shutdown

    19.4.12 Limiting the O2 trim controller manipulated variable with shutdown A minimum and a maximum value can be set for the O2 trim controller manipulated variable using the O2MinManVariable and O2MaxManVariable parameters. The behavior i f the value falls below or exceeds the related threshold of the O2 trim O2 parameter OptgMode: control manipulated variable limitation depends on the conAutoDeac...
  • Page 265 Example for calculating manipulated variables Minimum air pressure 60 mbar below set pressure. 30.0 Maximum temperature 30 °C above set temperature. Maximum anticipated manipulated value 14.7% 20.0 10.0 -10.0 Minimum air pressure 40 mbar above set pressure. -20.0 Maximum temperature 30 °C below set temperature. Minimum anticipated manipulated value -15.9% -30.0 -40.0...
  • Page 266: Deactivating O2 Trim Control Via A Contact

    19.4.13 Deactivating O2 trim control via a contact There are two different ways of deactivating the O2 trim control via a mains voltage signal at input X5-03 pin 2: 1. Parameterization to DeaO2/Stp36 O2 trim control can be deactivated via a mains signal at terminal X5-03 pin 2. The system then operates along the ratio control curves.
  • Page 267: Displaying The O2 Trim Controller Status

    19.4.14 Displaying the O2 trim controller status The status of the O2 trim controller can be read out with the AZL52 via data point State O2 Ctrl. deactivated The O2 trim controller is not active. The system operates along the ratio control curves.
  • Page 268: O2 Alarm

    19.5 O2 alarm The O2 alarm can be used with or without O2 trim control. When O2 trim control is activated, the O2 alarm becomes automatically active. There is one alarm for the O2 minimum value and one for the O2 maximum value. For the O2 minimum value alarm, the thresholds are defined by the O2 minimum value curve (refer to chapter Setting the O2 alarm, Direct entry of O2 min.
  • Page 269: Switch-Off Criteria Of The O2 Alarm

    19.5.2 Switch-off criteria of the O2 alarm 19.5.2.1 O2 minimum value alarm If … a) the O2 actual value falls below the O2 minimum value delayed via the PT1 element for the period Time O2 Alarm or b) the actual O2 value falls below the smallest parameterized O2 minimum value for the period Time O2 Alarm, one of the following reactions takes place, depending on the operating mode: ∂...
  • Page 270: O2 Maximum Value Alarm

    19.5.2.2 O2 maximum value alarm If the actual O value exceeds the O maximum value by > Time O2 Alarm, one of the following reactions takes place, depending on the operating mode: ∂ In all O2 trim controller operating modes except conAutoDeac Safety shutdown is initiated, followed by repetitions if possible, otherwise lockout.
  • Page 271: Self-Test

    19.6 Self-test During the startup phase and during operation, the system performs a number of self- tests to ensure that the QGO20 is working correctly. 19.6.1 O2 Sensor test To detect aging QGO20, an O2 sensor test is made. An aged measuring cell can be identified by its increased internal resistance.
  • Page 272: Checking The O2 Content (20.9%)

    19.6.2 Checking the O2 content (20.9%) Every time the burner is started up, the measured residual O2 content is compared with the O2 content of the ambient air at the end of prepurging. This test detects offset errors of the measuring cell. Normally, this value reads 20.9%, but it can be parameterized in the case of plants that operate with enriched air.
  • Page 273: Auxiliary Functions

    19.7 Auxiliary functions 19.7.1 Warning when flue gas temperature is too high If a flue gas temperature sensor is connected and activated, a warning is delivered in case the adjusted flue gas temperature is exceeded. Excessive flue gas temperatures are an indicator of increased boiler losses ⇑ boiler should be cleaned. The warning threshold for gas- and oil-firing can be set separately.
  • Page 274: Service Timer For Qgo20

    19.7.3 Service timer for QGO20 A service timer has been implemented for the QGO20. The time on the service timer is compared against the time that the system has been in operation (TotalHours hours run counter). The following occurs if the set time has elapsed: ∂...
  • Page 275: Pll52 O2 Module

    19.8 PLL52 O2 module The PLL52 and QGO20 must be connected to enable the residual oxygen control system to be activated on the LMV52. A combustion air and flue gas temperature sensor can also be connected as an option, enabling, for example, the combustion efficiency to also be calculated and displayed. The PLL52 is to be connected to the LMV5 via CAN bus.
  • Page 276 Terminal Connection Description of connection Electrical rating marking symbol O2 module Temperature compensation QGO20 (U3) DC [0...2 V], Ri > 100 kς PIN 6 ˜ Power supply temperature compensation DC [12...18 V], Ra = 20 ς PIN 5 ˜ (G2) GND (M) PIN 4 ˜...
  • Page 277 Pt/LG-Ni 1000 F 6.3 AT Pt/LG-Ni 1000 CANH CANL 12VAC1 12VAC1 12VAC1 Brown braun 12VAC2 12VAC2 12VAC2 CANH CANL Figure 122: Connection diagram PLL52 277/327 Building Technologies Basic Documentation LMV5... CC1P7550en 19 O2 trim control with LMV52 and PLL52 22.05.2018...
  • Page 278: Can Bus X84, X85

    19.8.2 CAN bus X84, X85 The PLL52 is to be connected to the LMV5 via CAN bus. There are 2 terminals for the CAN bus, X84 for the supply, and X85 for the connection of the AZL5. If the PLL52 is located at the end of the bus line, the CAN bus termination must be activated.
  • Page 279: Configuring The System

    19.10 Configuring the system (Description of the plant-dependent basic configuration) First, make all configurations as described in detail with the LMV51. 19.10.1 Actuators / VSDs When activating the actuators / VSDs via menu section RatioControl, parameterization comprises activated and deactivated and, in addition, air influen. Air-influencing (or air- regulating) actuators have an impact on the amount of air.
  • Page 280: Setting The User-Defined Type Of Fuel

    19.10.3 Setting the user-defined type of fuel If, when firing on gas or oil, the user-defined fuel type is selected, the relevant fuel parameters must be manually set. Parameter V_LNmin Amount of air required for stoichiometric combustion (κ = 1) [m³ air per m³ gas] or [m³ air per kg oil].
  • Page 281: Commissioning The O2 Trim Control System

    19.11 Commissioning the O2 trim control system 19.11.1 Setting fuel-air ratio control Caution! First, adjust the ratio control curves the same way as with the LMV51 The excess O2 rate must be selected high enough, ensuring that at all possible ambient conditions (combustion chamber and fuel pressure, temperature and pressure of the combustion air), the O2 level will not fall below the O2 setpoint of O2 trim control.
  • Page 282: Direct Entry Of O2 Min. Values

    19.11.3 Direct entry of O2 min. values If the limit values of a plant are known, and if the CO limit need not be remeasured, the O2 min. values can be entered directly. On the first line, Point, select the point number to be changed and confirm by pressing Enter (point 1 can be adjusted).
  • Page 283: Setting O2 Trim Control

    19.11.5 Setting O2 trim control Since with O2 trim control activated, the O2 alarm is always active too, the O alarm should already be set. For the initial setting, O2 trim control should remain deactivated, and the O2 alarm can be activated. Prior to setting the O2 trim controller, both fuel-air ratio control and the loads of the curvepoints should be correctly set.
  • Page 284: Checking And Changing The Controller Parameters

    Then, the measured O2 ratio value is displayed. The pointer now indicates the standardized value. By changing this value, the relative amount of air is reduced, whereby the standardized value corresponds to the relative air rate reduction. The standardized value is only changed until the actual O2 value reaches the required O2 setpoint, which is then displayed.
  • Page 285: Setting Notes

    19.12 Setting notes (Summary of the most important rules for setting O2 trim control) 19.12.1 Parameterizations Parameterize all truly air-regulating actuators as such If the parameter settings are changed, O trim control must be readjusted. 19.12.2 Setting fuel-air ratio control Caution! Set sufficient excess O2 Set the amount of excess air of the ratio control curve such that, whatever the...
  • Page 286 ∂ Linear progression of O2 value between the curvepoints The O2 value between the curvepoints should progress in a linear fashion. To make checks, approach load positions between the curvepoints and check the O2 value. If the progression is not linear, additional curvepoints should be set and the O2 progression should be appropriately corrected.
  • Page 287: Setting The O2 Trim Controller

    19.12.3 Setting the O2 trim controller ∂ Setting the O2 min. value The O2 min. value should be set as low as possible to ensure a high level of availability. Caution! Above or at the O2 min. value, hazardous conditions must not permanently occur.
  • Page 288: Technical Data

    19.13 Technical data LMV52 Refer to chapter Technical Data! Mains voltage X89-01 AC 120 V AC 230 V PLL52 -15% / +10% -15% / +10% I with parts according to II Safety class as per DIN EN 60730-1 Mains frequency 50/60 Hz ±6% Power consumption Approx.
  • Page 289: Flue Gas Recirculation (Fgr) Function (Lmv50/Lmv51.3/Lmv52)

    20 Flue gas recirculation (FGR) function (LMV50/LMV51.3/LMV52) 20.1 Function principle of flue gas recirculation (FGR) The flue gas recirculation (FGR) function is used to reduce the NOx content of flue gases. This is accomplished by feeding a certain proportion of the flue gas back to the combustion chamber, causing the flame’s temperature to drop.
  • Page 290 Attention! If at an dual-fuel burner the FGR function is used for only one fuel (e.g. gas operation with FGR and oil operation without FGR) pay attention to the following: When the fuel selection is switched over to the fuel without FGR it must be assured that the FGR actuator is closed and is supervised kept in the closed position.
  • Page 291: Parameter For The Flue Gas Recirculation (Fgr) Function

    20.2 Parameter for the flue gas recirculation (FGR) function Parameter Operating mode FGR defines the way and the point in time auxiliary actuator 3 is driven to the ratio control curve or to the positions calculated from the flue gas temperature and the ratio control curve. LMV50 FGR-Mode Description...
  • Page 292 Β Note! The full scope of setting TCautoDeact is possible only when the flue gas temperature is acquired via the load controller input (X60…). When the temperature is acquired via the PLL52 input (X86…) and the O2 trim controller / alarm is active (not CtrlAutoDeac), flue gas recirculation (FGR) mode temperature-compensated cannot be used (would lead to error C:F6 D:2).
  • Page 293 Active with flue gas recirculation (FGR) Parameter Description without with temperature temperature compensation compensation FRG On Time Gas Setting of delay time for auxiliary actuator 3 to be kept in the ● ● ignition position after entering phase OPERATION FRG On Time Oil FRG On Temp Gas The adjustment of the temperature to be achieved so that ●...
  • Page 294 Only LMV52.4: Examples of tables showing the damper positions with flue gas recirculation (FGR) Table with setting values: Output 37.5% 62.5% 100% Flue gas recirculation (FGR) curve 19.3° 25.0° 28.5° 37.0° Flue gas recirculation (FGR) 72 °C 105 °C 121 °C 150 °C temperature The LMV52.4 uses these setting values to calculate a zero curve:...
  • Page 295: Setting Electronic Fuel-Air Ratio Control In Connection With Flue Gas Recirculation (Fgr)

    20.3 Setting electronic fuel-air ratio control in connection with flue gas recirculation (FGR) 20.3.1 Settings in Time or Temperature mode (without temperature compensation) The curve of auxiliary actuator 3 can be set the same way as fuel-air ratio control. Recommendation: Commission the plant with no influence from flue gas recirculation (FGR).
  • Page 296 If auxiliary actuator 3 still maintains the ignition position (recirculation duct CLOSED), it is marked with #. The position value of auxiliary actuator 3 can be changed, but the actuator will not follow the readjustment for that period of time! The changed value can also be stored.
  • Page 297: Settings In Temperature-Compensated Mode (Only Lmv52.4)

    20.3.2 Settings in temperature-compensated mode (only LMV52.4) Β Note! Recommendation: First, make the initial settings with no influence from flue gas recirculation (FGR). This enables the fuel-air ratio control system to be set as if the plant operated without flue gas recirculation (FGR). For that purpose, set flue gas recirculation (FGR) mode temp.comp.
  • Page 298 - Continue by pressing Enter ⇒ If auxiliary actuator 3 is still in the ignition position (recirculation duct CLOSED), symbol # appears for a short moment. After entering the curve settings, auxiliary actuator 3 in flue gas recirculation (FGR) mode temp-compensated is immediately driven to the selected point. When selecting without DriveLowfire, the curve position can be readjusted without having the actuator follow the position value.
  • Page 299 Β Note! The valuation of the input Oil pressure switch-min in the program Heavy oil with gas pilot has been moved from phase 38 to phase 44. To subsequently change this assignment, 2 choices are available: 1. Without DriveLowfire in operation. When selecting without DriveLowfire in operation, the initial temperature value is not changed.
  • Page 300: Settings In Deactminpos Or Auto Deact Mode (Only Lmv52.4)

    20.3.3 Settings in deactMinpos or auto deact mode (only LMV52.4) In flue gas recirculation (FGR) mode deactMinpos or auto deact, the flue gas temperature sensor is not evaluated and the value used internally for the flue gas temperature is always maintained at 0 °C. As a result, the display that appears for auxiliary actuator 3 while the curve setting is made is XXXX.
  • Page 301: Reading The Flue Gas Recirculation (Fgr) Operating Temperature (Only Lmv52.4)

    20.4 Reading the flue gas recirculation (FGR) operating temperature (only LMV52.4) The temperature values of temperature-compensated flue gas recirculation (FGR) stored while the curve settings are made can be read out via menu item Params & Display, Flue Gas Recirc., OperationTempGas or OperationTempOil. °...
  • Page 302: Dimensions

    21 Dimensions Dimensions in mm PLL52 41,5 41,5 Figure 127: Dimension PLL52 302/327 Building Technologies Basic Documentation LMV5... CC1P7550en 21 Dimensions 22.05.2018...
  • Page 303: Revision History

    22 Revision history 22.1 Changes of LMV51 from series A to B The new release of the LMV5 is identified by the series letter B in the type (LMV51.XXXBXXX). Β Notes on compatibility! ∂ When changing from A-series to B-series units, the parameter sets can be copied ∂...
  • Page 304: Basic Unit Lmv52, Introduction V01.10

    Pressure switch relief valve, inverted control The signal can be inverted via the relevant parameter. The output is only active when the fan operates. External controller contact with Manually on If the burner is in operation with Manually on, the external controller on contact (X5-03 pin 1) acts as a shutoff device should overtemperatures occur.
  • Page 305: Basic Unit Lmv52, Software From V01.30 To V04.10

    22.2.1.4 Basic unit LMV52, Software from V01.30 to V04.10 The product nos. of the LMV5 will change as follows: LMV51.0x0Bx LMV51.0x0Cx LMV51.1x0Bx LMV51.1x0Cx LMV51.200Ax no modification LMV52.2x0Ax LMV52.2x0Bx To operate the LMV5, it is necessary to have AZL5 software version 04.10 or higher installed.
  • Page 306: Basic Unit Lmv52, Software From V04.20 To V04.50

    22.2.1.6 Basic unit LMV52, Software from V04.20 to V04.50 1. Abortion of speed test during operation by leaving the left operating position with controlled shutdown. 2. Implementation of functionality to reach the operating position after ignition via a curvepoint other than point 1 (StartPoint Op). 3.
  • Page 307: Basic Unit Lmv52.4, Software From V04.80 To V10.00

    If the VSD speed lies below the speed set via parameter RotSpeed PS off, the pressure switch for flue gas recirculation (FGR) must deliver an OFF signal. 22.2.1.9 Software versions of the 2012/2013 release upgrade The changeover is expected to take place in Siemens production facilities in autumn 2013: 2012/2013 version release LMV50: V10.20...
  • Page 308: Basic Unit Lmv51.0 And Lmv51.1, Software From V02.50 To V05.10

    22.2.1.10 Basic unit LMV51.0 and LMV51.1, Software from V02.50 to V05.10 With the 2012/2013 release upgrade for the LMV5, the microcomputer PCB in the variants named above will be converted to the same microcomputer PCB as in the LMV51.3 and LMV52 (known as platform conversion). This means that from the date of the switchover, these variants will also have the additional hardware input X7-03 pin 2 (start release gas or CPI), which was previously only available for the LMV51.3 and LMV52.
  • Page 309: Basic Unit Lmv51.3, Software From V04.80 To V05.10

    17. Quick shutdown in multistage operation with a variable speed drive is only still performed if speed deviations are actually present that are above the parameterized threshold TolQuickShutdown. 18. Gas with flue gas recirculation function (FGR), oil without flue gas recirculation: When switching over to oil, it must be ensured that the flue gas recirculation actuator has been/is closed.
  • Page 310: Basic Unit Lmv52.2, Software From V04.80 To V05.10

    22.2.1.13 Basic unit LMV52.2, Software from V04.80 to V05.10 With the 2012/2013 release upgrade for the LMV5, the LMV52.2 now includes all the same functions as the LMV51.0, LMV51.1, and LMV51.3 variants, refer to previous sections for description. Additionally, the LMV52.2 contains the following new functions: 1.
  • Page 311: Basic Unit Lmv52.4, Software From V10.00 To V10.20

    22.2.1.14 Basic unit LMV52.4, Software from V10.00 to V10.20 With the 2012/2013 release upgrade for the LMV5, the LMV52.4 now includes all the same functions as the LMV51.0, LMV51.1, LMV51.3, and LMV52.2 variants, refer to previous sections for description. Additionally, the LMV52.4 contains the following new functions: 1.
  • Page 312: Changes To The Load Controller

    22.2.2 Changes to the load controller 22.2.2.1 Load controller, Software from V01.40 to V01.50 The software of the load controller has been changed from V01.40 to V01.50. The following changes have been made: ∂ Auxiliary sensor for cold start thermal shock protection ∂...
  • Page 313: Load Controller, Software From V01.50 To V01.60

    Burner shutdown at <5 mA not used. <3 mA: Line interruption Load output, multistage: Burner off: 4 mA Stage 1: 5 mA Stage 2: 10 mA Stage 3: 15 mA 22.2.2.2 Load controller, Software from V01.50 to V01.60 The following changes have been introduced: Plausibility check at inputs X61 and X62 The plausibility check at inputs X61 and X62 is not made anymore.
  • Page 314: Changes To The Variable Speed Drive Module (Vsd Module)

    22.2.3 Changes to the variable speed drive module (VSD module) 22.2.3.1 VSD module, Software from V01.30 to V01.40 1. Opening of the release contact during shutdown can be parameterized. This enables the VSD module to use a DC break. 2. Quick shutdown of the burner when speed deviation exceeds a certain level. 22.2.3.2 VSD module, Software from V01.40 to V01.50 1.
  • Page 315: Changes To The Display And Operating Unit Azl52

    22.2.4 Changes to the display and operating unit AZL52 22.2.4.1 Display and operating unit AZL5, Software from V2.20 to V02.50 In connection with the new type of LMV5 (LMV51.XXXCXXX), the type of AZL52.XXAXXX has been changed as well. Hence, the types indicate the state of release and show the unit versions that work together.
  • Page 316: Display And Operating Unit Azl52, Software From V04.00 To V04.10

    1. Display of additional temperature for steam plants with thermal shock protection. 2. The system is now capable of handling imperial and metric units. 3. The Siemens AZL52 is supplied with English settings. 4. Modbus: The nonresettable fuel meters have been replaced by resettable ones.
  • Page 317: Display And Operating Unit Azl52, Software From V04.30 To V04.50

    22.2.4.5 Display and operating unit AZL52, Software from V04.30 to V04.50 1. Presentation of load controller’s switching thresholds in absolute values. But the setting values are still relative values. 2. ABmaxLoadMod is now limited by MinLoad and MaxLoad. 3. Correction of Italian translation. 4.
  • Page 318: Display And Operating Unit Azl52, Software From V04.80 To V05.00

    22.2.4.8 Display and operating unit AZL52, Software from V04.80 to V05.00 For the 2012/2013 release upgrade for the LMV5, the software of the AZL52 has been changed as follows: 1. 3 new languages for the AZL52.09 (Cyrillic): Bulgarian, Romanian, and Turkish 2.
  • Page 319 Parameter name Selection Comment Type of Gateway eBus / Modbus / Data output New setting Gateway Status Display the Gateway Status New process data Autom/Manual/Off Automatic / Manual / Burner off New marking (old: Hand or Burner ON) Local / Remote New German marking (old: Local) PostpurgeT3long New parameter...
  • Page 320: Index

    23 Index Burner control Flame signal display AZL5 2-position controller Flame supervision burner control section Actual values Actuators/VSDs Calculation of precontrol adaption sequence CAN bus cable adjustment of contrast CAN bus X84, X85 Air-fuel ratio control curve Checking and changing the controller Adjustment contrast/shut-off/quick parameters access...
  • Page 321 Digital inputs Limitation of load range X3-02 pin 1 Masking out load range X3-04 pin 1 / X3-03 pin 1 Multistage operation X4-01 pin 1 / pin 2 Position check, safety time X4-01 pin 3 Postpurge positions X4-01 pin 4 Prepurge position X4-03 Program stop...
  • Page 322 Parameterizing the type of fuel parameters measuring the O2 min values by pin assignment cable connection lowering the air rate Siemens AZL5 - SPI3 PLL52 menu structure modulating control port for the PC monitoring with extra air pressure...
  • Page 323 Setting fuel-air ratio control 281, 285 Setting notes QRA2/QRA4/QRA10 with AGQ1 setting O2 trim control Technical Data setting the O2 alarm QRA7 setting the O2 trim controller Technical Data Setting the user-defined type of fuel 280 settings for gas-fired operation settings in temperature-compensated Technical Data mode...
  • Page 324 24 List of figures Figure 1: Mounting the LMV5 ..................12 Figure 2: Mounting the AZL5 ..................13 Figure 3: Basic diagram ....................20 Figure 4: Block diagram – inputs / outputs ..............22 Figure 5: Block diagram –inputs / outputs ..............23 Figure 6: Block diagram –...
  • Page 325 Figure 34: Fuel train application – program light oil direct ignition (LO) ......76 Figure 35: Fuel train application – program heavy oil direct ignition (HO) ..... 77 Figure 36: Fuel train application – program light oil gas pilot ignition (LOgp) ....78 Figure 37: Fuel train application –...
  • Page 326 Figure 70: Connection for several LMV5s to SIMATIC S7-1200 via separate Modbus connections ......................136 Figure 71: Connection for LMV5 to ET 200S via Modbus ........... 137 Figure 72: Connection for several LMV5s to ET 200S via common Modbus ..... 137 Figure 73: Connection for several LMV5s to ET 200S via separate Modbus connections ..........................
  • Page 327 Figure 125: Checking the transfer range between damper and VSD ......286 Figure 126: Typical application example ..............290 Figure 127: Dimension PLL52 ..................302 Siemens AG Building Technologies © 2018 Siemens AG Building Technologies Berliner Ring 23 Subject to change! D-76437 Rastatt Tel.

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