Siemens LMV51 Series Operator's manual

Based on the following
software versions:
LMV51... : V02.30
LMV52...: V01.10
Int. LC: V01.60
Int. VSD module: V01.30
AZL51...: V02.50
AZL52...: V03.80
PLL52...: V01.20
CC1P7550en
13.08.2004
Siemens Building Technologies
HVAC Products
LMV51...
Burner Control with integrated Fuel / Air Ratio
Control and Load Control for Forced Draft Burners
LMV52...
Burner Control with integrated Fuel / Air Ratio
Control and Load Control including O2 Trim Control
for Forced Draft Burners
Basic Documentation
The LMV5... and this Basic Documentation are intended for OEMs which integrate
the system in their products!

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Contents
1Safety notes.................................................................................................15
1.1 Warnings .......................................................................................................15
1.2 Mounting notes..............................................................................................16
1.3 Installation notes............................................................................................ 16
−Only for US: Interference caused by high-frequency energy ............16
1.4 Electrical connection of ionization probe and flame detector ........................17
1.5 Commissioning notes ....................................................................................17
1.6 Setting and parameter setting notes.............................................................. 17
1.7 Norms and standards ....................................................................................18
1.8 Service notes.................................................................................................18
1.9 Disposal notes ...............................................................................................18
2General.........................................................................................................19
2.1 Brief description.............................................................................................19
−Basic diagram .......................................................................................19
2.2 Product range overview.................................................................................21
−ACS450 ................................................................................................21
−AGG5.110.............................................................................................21
−AGG5.220.............................................................................................21
−AGG5.310.............................................................................................21
−AGG5.630.............................................................................................21
−AGG5.631.............................................................................................21
−AGG5.635.............................................................................................21
−AGG5.640.............................................................................................21
−AGG5.641.............................................................................................21
−AGG5.720.............................................................................................21
−AGG5.721.............................................................................................21
−AGO20..................................................................................................21
−AZL51... ................................................................................................21
−AZL52... ................................................................................................21
−KF8893 .................................................................................................21
−PLL52.110A100 .................................................................................... 21
−PLL52.110A200 .................................................................................... 21
−QGO20... ..............................................................................................21
−QRI2A2... ..............................................................................................22
−QRI2B2... ..............................................................................................22
−FGT-PT1000.........................................................................................22
−SQM45.291A9 ......................................................................................22
−SQM45.295A9 ......................................................................................22
−SQM48.497A9 ......................................................................................22
−SQM48.697A9 ......................................................................................22
2.3 Type summary LMV5... .................................................................................23
−LMV51.000B1 .......................................................................................23
−LMV51.000B2 .......................................................................................23
−LMV51.040B1 .......................................................................................23
−LMV51.100B1 .......................................................................................23
−LMV51.100B2 .......................................................................................23

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−LMV51.140B1 .......................................................................................23
−LMV51.200A1 .......................................................................................23
−LMV51.200A2 .......................................................................................23
−LMV52.200A1 .......................................................................................23
−LMV52.200A2 .......................................................................................23
−LMV52.240A1 .......................................................................................23
−LMV52.240A2 .......................................................................................23
2.4 Block diagram inputs / outputs.......................................................................24
−Block diagram (cont‘d).......................................................................25
−Block diagram (cont‘d).......................................................................26
3Fuel train applications (examples).............................................................27
−Direct gas ignition..................................................................................27
−Gas pilot ignition 1.................................................................................27
−Gas pilot ignition 2.................................................................................27
−Fuel valve control program....................................................................27
−Fuel train applications (cont‘d) ..............................................................28
−Direct ignition with light oil, multistage ..................................................28
−Direct ignition with light oil, modulating .................................................29
−Fuel valve control program....................................................................29
−Direct ignition with heavy oil, multistage ...............................................30
−Direct ignition with heavy oil, modulating ..............................................30
−Fuel valve control program....................................................................31
−Dual-fuel burner gas / light oil with gas pilot ignition .............................32
−Fuel valve control program....................................................................32
−Dual-fuel burner gas / heavy oil with gas pilot ignition ..........................33
−Fuel valve control program....................................................................33
4Burner control..............................................................................................34
4.1 Description of inputs and outputs...................................................................34
−Flame signal input and flame detector X10–01 and X10–03 ................34
−Self-test function LMV5... / QRI... ......................................................34
−Separate flame supervision, only with LMV52... ...................................34
−Application example ..........................................................................35
−Implementation ..................................................................................35
−Technical data, flame supervision........................................................35
−QRI (suited for continuous operation) ...................................................35
−Connection diagram ..........................................................................35
−IONIZATION (suited for continuous operation) .....................................36
−QRB... (for intermittent operation only) .................................................36
4.1.1 Digital inputs ..................................................................................................37
−SAFETY LOOP X3–04..........................................................................37
−FLANGE X3–03 ....................................................................................37
−Inputs for external controller (ON/OFF) X5–03 .....................................37
−2 inputs (ON / OFF or STAGE2 / STAGE3) ..........................................38
−X5–03....................................................................................................38
−Air pressure switch (APS) X3–02..........................................................38
−Pressure switch-VP-gas / LT or closed position indicator (CPI) X9–03 39
−Pressure switch-min-gas, start release gas (PSmin-gas) X9–03..........39
−Start release gas X7–03 (only with LMV52...).......................................40
−Pressure switch-max-gas, (PSmax-gas) X9–03 ...................................40
−Pressure switch-min-oil (PSmin-oil) X5–01...........................................40

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−Pressure switch-max-Oil (PSmax-Oil) X5–02.......................................41
−Start release-oil (START) X6–01 ..........................................................41
−Direct heavy oil start (HO-START) X6–01 ............................................ 41
−Fan contactor contact (FCC) or FGR-PS X4–01...................................41
4.1.2 Digital outputs................................................................................................42
−Alarm output, type No-SI X3–01 ..........................................................42
−Output fan, type No-SI X3–01...............................................................42
−Output ignition, type SI (IGNITION) X4–02........................................... 42
−Outputs valves-oil , type SI (V...) X8–02, X8–03, X7-01, X7-02 ...........42
−Outputs valves -gas, type SI (V..., SV, PV) X9–01 ............................... 42
−Output oil pump / magnetic clutch, type No-SI X6–02 ..........................43
−Output «Start signal» or «PS valve» (APS test valve) type No-SI
(START) X4–03 ....................................................................................43
4.2 Program sequence ........................................................................................44
4.2.1 Parameters....................................................................................................44
−Time parameters...................................................................................44
4.2.2 Gas valve proving..........................................................................................45
−Recommendation .............................................................................. 45
−Determination of VP leakage rate ..................................................... 46
4.2.3 Special functions during the program sequence ........................................... 47
−Lockout phase (Phase 00)....................................................................47
−Safety phase (Phase 01) ......................................................................47
−Reset / manual lockout .........................................................................47
−Characteristics ..................................................................................47
−Characteristics ..................................................................................47
−Signaling star preventions .................................................................... 48
−Forced intermittent operation................................................................48
−Program stop function...........................................................................48
−Gas shortage program..........................................................................49
−Sequence diagram ............................................................................ 49
−Part load shutdown ...............................................................................49
−Normal / direct start ..............................................................................50
−Continuous fan operation......................................................................50
−Continuous pilot control (only LMV52)..................................................50
−Response to extraneous light in standby..............................................50
4.2.4 Selection of fuel .............................................................................................51
−Selection of fuel with the fuel selector on the LMV5... ..........................51
−Selection of fuel on the AZL5................................................................51
−Selection of fuel via BACS (modbus /ebus ...........................................51
−Fuel changeover ...................................................................................51
4.2.5 Sequence diagrams....................................................................................... 52
−Direct gas ignition .................................................................................52
−Gas pilot ignition 1 ................................................................................53
−Gas pilot ignition 2 ................................................................................54
−Light oil direct ignition ...........................................................................55
−Heavy oil direct ignition......................................................................... 56
−Light oil with gas pilot ignition ...............................................................57
−Heavy oil with gas pilot ignition............................................................. 58
−Legend to the sequence diagrams .......................................................59
5Fuel / air ratio control (FARC) ....................................................................60
5.1 General.......................................................................................................... 60

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5.1.1 Program sequence.........................................................................................60
−Standby .................................................................................................60
−Preventilation ........................................................................................60
−Ignition...................................................................................................61
−Traveling to the operating position ........................................................61
−Operation ..............................................................................................61
−End of operating position ......................................................................61
−Postpurging ...........................................................................................62
−Actuator speed outside normal operation .............................................62
−Operating position .................................................................................62
−Modulating .........................................................................................62
−Multistage operation ..........................................................................63
5.1.2 Position check................................................................................................64
−Dynamic safety time ratio control ..........................................................64
−Outside the operating position ..............................................................66
−Operating position modulating ..............................................................66
−Operating position multistage................................................................66
5.1.3 Special features .............................................................................................66
−Program stop.........................................................................................66
−Direction of rotation of actuators ...........................................................66
−Limitation of the load range...................................................................67
−Activation of actuators / VSD ................................................................68
−LMV51... ............................................................................................68
−LMV52... ............................................................................................68
−Number of fuel actuators.......................................................................68
−Traveling times......................................................................................68
−Shutdown behavior ...............................................................................68
−Overload protection of actuators ...........................................................68
−Curve adjustment ..................................................................................68
6Temperature or pressure controller (internal load controller LC)...........69
6.1 General ..........................................................................................................69
6.2 Connection diagram.......................................................................................69
6.3 Operating modes with the load controller ......................................................69
−Operating mode 1 (ExtLC X5-03)..........................................................70
−Operating mode 2 (intLC)......................................................................71
−Operating mode 3 (int LC bus)..............................................................71
−Operating mode 4 (int LC X62) .............................................................72
−Operating mode 5 (Ext LC X62)............................................................72
−Operating mode 6 (Ext LC bus) ............................................................73
6.3.1 Operating mode changeover to internal load controller .................................73
6.4 Control (characteristics) .................................................................................74
−Operating mode ....................................................................................74
6.4.1 Integrated 2-position controller (C = ON / OFF).............................................74
−General .................................................................................................74
−Switching differentials........................................................................74
6.4.2 Modulating control..........................................................................................75
−General .................................................................................................75
−Function diagrams.................................................................................75
−Control parameters ...............................................................................75
−Manual setting of the control parameters ..........................................75

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−Self-setting of control parameters (adaption)........................................76
−Adaption sequence ...............................................................................76
−Checking the control parameters..........................................................77
−Example ............................................................................................77
−Settling of the manipulated variable......................................................78
−Principle ............................................................................................78
−Description (graph)............................................................................78
6.4.3 Multistage control ..........................................................................................79
−General .................................................................................................79
−Load-dependent activation of the higher burner stages .......................79
−Function diagrams ................................................................................80
6.5 Actual values (X) ........................................................................................... 81
−Input 1, TEMP, Pt100 sensor (DIN) X60...............................................81
−Input 2: TEMP. / PRESS INPUT, DC 0...10 V / DC 2...10 V / 4...20 mA
X61 .......................................................................................................81
−Measuring range temperature (can be parameterized).....................81
−Measuring range pressure (can be parameterized) .......................... 81
−Input 4: TEMP, Pt1000 / LG-Ni 1000 X60.............................................82
6.6 Setpoints (W).................................................................................................83
−Internal setpoint ....................................................................................83
−Input 3: SET POINT INPUT X62........................................................... 83
−External predefined setpoint .............................................................83
−External predefined load ...................................................................83
−External predefined load, modulating................................................83
−External predefined load, multistage.................................................84
−External setpoint changeover............................................................84
−External setpoints or predefined load via digital modbus / e-bus
interface ................................................................................................84
6.7 Integrated temperature limiter function..........................................................85
−TL within the scope of TRD ..................................................................85
−TL with external predefined load...........................................................85
−Requirements placed on sensor and protection pocket........................85
6.8 Cold start thermal shock protection (CSTP) ..................................................86
6.8.1 CSTP – modulating operation .......................................................................86
6.8.2 CSTP – multistage operation.........................................................................87
6.8.3 CSTP with temperature sensor in pressure plants ........................................87
6.9 Output............................................................................................................88
6.9.1 Output 4...20 mA ........................................................................................... 88
−Output, modulating ...............................................................................88
−Output, multistage.................................................................................88
6.10 Multiboiler plants............................................................................................ 88
6.10.1 Multiboiler plants by means of an analog input .............................................88
6.10.2 Multiboiler plants by means of a digital interface...........................................88
7Display and operating unit AZL5... ............................................................89
7.1 Assignment of AZL5… terminals ...................................................................90
−Connecting cable to the e-bus adapter.................................................91
−Connecting cable to the PC ..................................................................91
7.2 Ports of the AZL5….......................................................................................92
7.2.1 Port for the PC............................................................................................... 93
7.2.2 Connection to superposed systems ..............................................................94

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−General information and BACS functions .............................................94
−Reading eBus-specific.......................................................................94
−data....................................................................................................94
−Writing parameters ............................................................................95
−List of supported eBus commands........................................................95
7.3 Display and settings.......................................................................................96
7.3.1 Menu structure...............................................................................................96
−Displays.................................................................................................97
−Display (cont‘d)..................................................................................98
−Displays (cont‘d) ................................................................................99
−Lockout and error messages...............................................................100
−Lockout and error messages (cont‘d) ..............................................101
−Standard parameterizations (incl. entry of password).........................102
−Entry of password (PW)...................................................................103
−Start display.....................................................................................103
−First submenu level .........................................................................104
−Second submenu level ....................................................................104
−Third submenu level ........................................................................104
−Fourth submenu level ......................................................................104
−Addressing the actuators (function assignment) ..................................105
−Direction of rotation .........................................................................106
−Reset ...............................................................................................106
−Operational status indication by LED on the actuator .....................106
−Power is fed to unaddressed actuator .............................................106
−Button for addressing is pressed (display during addressing
procedure) .......................................................................................106
−Addressing completed, normal operation of actuator ......................106
−Special function curve settings FARC.................................................107
−Special function adaption LC ..............................................................117
−Burner identification (burner ID) ..........................................................119
−Makeup of burner ID........................................................................119
−Languages ..........................................................................................119
−Real time clock and calendar ..............................................................119
−S / W changeover ............................................................................119
−Backup.............................................................................................119
−Type of battery.................................................................................119
−Adjustment of contrast (display)..........................................................120
−Shutdown function...............................................................................120
−Quick access Normal operation ..........................................................120
7.4 Safety check function...................................................................................121
−Loss-of-flame test................................................................................121
−SLT test...............................................................................................121
7.5 Menu and parameter lists ............................................................................121
−AZL5… menu structure with parameter definitions .............................121
8Commissioning instructions for the LMV5... system.............................150
8.1 Practice-oriented setting instructions for the system configuration, the
burner control, and the electronic fuel / air ratio control system ..................................150
8.1.1 Basic configuration.......................................................................................150
−1. Parameterizing the burner identification (burner ID) .......................150
−2. Selecting the fuel trains...................................................................150

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−3. Checking the inputs / outputs while taking into account the burner
and plant conditions. For details, refer to subsection 4.1.1 Digital inputs150
−4. Setting gas valve proving................................................................151
−5. Addressing the actuators ................................................................151
−6. Selecting the actuator’s direction of rotation................................... 152
−7. Configuration of VSD (only LMV5x.2...) (subsection 18.1.2) ..........152
−LMV52... activating and deactivating the actuators ............................152
−8. Setting the load controller (option)..................................................153
−9. Selecting a temperature or pressure sensor...................................153
8.1.2 Settings for gas-fired operation ...................................................................154
−10. Activating program stops in different program phases .................154
−11. Checking and presetting the actuators positions for gas ignition.. 154
−12. Manual startup .............................................................................. 154
−13. Actuator positions during the prepurge time .................................155
−Note:................................................................................................155
−14. Ignition positions ...........................................................................155
−15. Setting the curve...........................................................................156
−First setting......................................................................................156
−Changing an existing curve.............................................................157
−Creating a new curvepoint ..............................................................157
−16. Load limits.....................................................................................157
−17. Shutdown......................................................................................157
8.1.3 Settings for multistage firing on oil...............................................................158
−18. Fuel changeover for firing on oil ...................................................158
−19. Changing the burner operating mode from modulating to multistage
(only when firing on oil).......................................................................158
−20. Activating the program stops in the different program phases .....158
−21. Checking and presetting the ignition positions for firing on oil...... 159
−22. Manual startup .............................................................................. 159
−23. Actuator positions during the prepurge time .................................159
−Note:................................................................................................159
−24. Ignition positions ...........................................................................160
−25. Setting the burner stages..............................................................161
−26. Shutdown......................................................................................162
8.1.4 Extra functions of the LMV5... ..................................................................... 163
−27. Valve proving (leakage test LT) ....................................................163
−Example 1 (calculation of test time)....................................................164
−Example 2 (determination of detectable leakage rate) ....................... 164
8.1.5 Configuration of the load controller..............................................................165
−Selection of operating mode ...............................................................165
8.1.6 Control parameters of the load controller ....................................................166
−1. Selection of the standard parameter set.........................................166
−2. Individual setting of the PID parameters......................................... 166
−3. Automatic adaption .........................................................................166
−Temperature limiter function ............................................................... 167
−Boiler setpoints W1 and W2 ...............................................................167
−2-position controller (C = ON / OFF)...................................................168
−Diagram...........................................................................................168
−Cold start thermal shock protection (CSTP) .......................................168
−Description ......................................................................................168
9Connection terminals / coding of connectors...........................................170

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9.1 Connection terminals of the LMV51.000x1 / LMV51.040x1.........................170
9.2 Connection terminals of the LMV51.000x2 ..................................................171
9.3 Connection terminals of the LMV51.100x1 / LMV51.140x1.........................172
9.4 Connection terminals of the LMV51.100x2 ..................................................173
9.5 Connection terminals of the LMV51.200x1 ..................................................174
9.6 Connection terminals of the LMV51.200x2 ..................................................175
9.7 Connection terminals of the LMV52.200A2 / LMV52.240A2........................176
9.8 Connection terminals of the LMV52.200A1 / LMV52.240A1........................177
9.9 Coding of connectors...................................................................................178
−AGG5.720 ...........................................................................................179
−AGG5.721 ...........................................................................................180
10 Description of the connection terminals (AC 120 V)..............................181
11 Description of the connection terminals (AC 230 V)..............................186
12 Mounting, electrical installation and service ..........................................191
−Installation ...........................................................................................191
−Electrical connections and wiring ........................................................191
−Connection of LMV5... CAN bus .........................................................191
12.1 Power supply to the LMV5... system............................................................192
−Determination of the maximum cable length.......................................195
−Types of cable.....................................................................................196
12.2 Suppliers of other accessory items ..............................................................197
−Mounting rail adapter type: USA 10 / 4,6 ............................................197
−e-bus / PC adapter part no. 230 437...................................................197
13 Duties of the authorized inspector...........................................................198
−LMV51... systems ............................................................................198
−In addition with LMV52... systems ...................................................198
−Correct parameterization of the system ..............................................198
−Fuel / air ratio control system ..............................................................199
−Burner control section .........................................................................199
−O2 trim control (only with LMV52... system) ......................................200
−General ...............................................................................................200
14 Technical data............................................................................................201
14.1 LMV5... and AZL5........................................................................................201
−Basic unit LMV5... ...............................................................................201
−Environmental conditions LMV5... ...................................................201
−AZL... ...............................................................................................201
−Environmental conditions AZL5.......................................................201
−LMV5... / AZL5….................................................................................202
−Types of cable.....................................................................................202
14.2 Loads on terminals, cable lengths and cross-sectional areas .....................203
−Loads on terminals..............................................................................203
−General data....................................................................................203
−Mains supply....................................................................................203
−Undervoltage ...................................................................................203
−Oil pump / magnetic clutch ..............................................................203
−APS test valve .................................................................................203

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−Status inputs (CFN).........................................................................203
−Load on terminals «outputs» ..............................................................203
−Total load on contacts ..................................................................... 203
−Load on individual contacts .................................................................204
−Fan motor contactor ........................................................................ 204
−Alarm output....................................................................................204
−Ignition transformer .........................................................................204
−Fuel valves (gas).............................................................................204
−Fuel valves (oil) ............................................................................... 204
−Cable lengths......................................................................................204
−Cross-sectional areas .........................................................................204
−Fuses used in the LMV5... basic unit.................................................. 204
15 Dimensions................................................................................................205
−LMV5... ...............................................................................................205
−AZL5... ................................................................................................205
16 Addendum 1: List of fault status messages of LMV5... system............206
17 Addendum 2: Connection diagram..........................................................251
18 Addendum 3: Variable speed drive (VSD) module.................................252
−General ...............................................................................................252
−Basic diagram .................................................................................252
−LMV51... Configuration of the basic unit (BU) ....................................252
−LMV52... configuration of the basic unit (BU) .....................................252
18.1 VSD module ................................................................................................253
−General ...............................................................................................253
18.1.1 Inputs / outputs............................................................................................253
−Connection diagram............................................................................253
−Release contact X73-1 / -2 .................................................................253
−Alarm input X73-3 ............................................................................... 253
−Analog output to the VSD X73-4.........................................................253
−Speed feedback signal .......................................................................254
−Speed input X70 .................................................................................254
−Safe segregation between mains voltage and protective extra low-
voltage ................................................................................................254
−Sensor disk ..................................................................................... 254
−Speed sensor ..................................................................................254
−Selection of fan motor ..................................................................... 254
−Fuel meter...........................................................................................255
−Fuel meter input X71 / X72 .................................................................255
18.1.2 Configuration of VSD...................................................................................255
18.1.3 Configuration of speed acquisition ..............................................................256
−Standardization ...............................................................................256
−Note.................................................................................................256
−Settling time ....................................................................................257
18.1.4 Configuration of current interface ................................................................258
18.1.5 Configuration of fuel meter ..........................................................................258
−Pulse value gas...............................................................................258
−Pulse value oil ................................................................................. 258
18.1.6 Fuel meter readings..................................................................................... 259
18.1.7 Process data................................................................................................ 259

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18.2 Differences to LMV51.200... and LMV51.000... / LMV51.100......................260
−Special functions Curve settings for electronic ratio control................260
18.3 EMC: LMV5... system – VSD.......................................................................261
18.4 Connection terminals ...................................................................................262
18.5 Description of the connection terminals for the variable speed drive
module 263
19 Addendum 4: LMV52... with O2 trim control and O2 module ................264
19.1 General ........................................................................................................264
19.2 Functioning principle of O2 trim control .......................................................265
19.2.1 Air rate reduction..........................................................................................265
19.2.2 Definition of O2 setpoint...............................................................................265
19.2.3 Lambda factor..............................................................................................266
19.3 Precontrol.....................................................................................................267
19.3.1 Calculation of precontrol ..............................................................................267
19.4 O2 trim control .............................................................................................268
19.4.1 Operating modes of O2 trim controller / O2 monitor ....................................268
19.4.2 Load limitation with O2 trim control..............................................................269
19.4.3 Startup .........................................................................................................269
19.4.4 Heating up the O2 sensor after «PowerOn»................................................269
19.4.5 Initialization of O2 trim controller..................................................................269
19.4.6 Behavior in the event of load changes.........................................................270
19.4.7 Increasing the manipulated variable in the case of a load change (offset) ..271
19.4.8 Control interventions by the O2 trim controller.............................................272
19.5 O2 monitor ...................................................................................................273
19.5.1 Delayed O2 min. value.................................................................................273
19.5.2 Switch-off criteria .........................................................................................273
19.6 Self-test........................................................................................................274
19.6.1 Sensor test...................................................................................................274
19.6.2 Checking the O2 content (20.9 %)...............................................................275
19.7 Auxiliary functions ........................................................................................276
19.7.1 Warning when flue gas temperature is too high...........................................276
19.7.2 Combustion efficiency..................................................................................276
19.8 O2 module ...................................................................................................277
19.8.1 Inputs and outputs .......................................................................................277
19.8.2 CAN bus X84, X85.......................................................................................280
19.9 Configuration of O2 module.........................................................................280
19.10 Configuration of the system .........................................................................281
19.10.1 Actuators / VSDs..........................................................................................281
19.10.2 Parameterization of the type of fuel .............................................................281
19.10.3 Setting the user-defined type of fuel ............................................................282
−Preset fuel parameters ....................................................................282
19.11 Commissioning the O2 trim control system .................................................283
19.11.1 Setting ratio control......................................................................................283
19.11.2 Setting the O2 monitor .................................................................................283
19.11.3 Direct entry of O2 min. values......................................................................284
19.11.4 Measuring the O2 min. values by lowering the air rate................................284

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19.11.5 Setting O2 trim control.................................................................................285
19.11.6 Checking and changing the controller parameters ......................................286
19.12 Setting notes................................................................................................ 287
19.12.1 Parameter settings ......................................................................................287
19.12.2 Setting O2 ratio control................................................................................287
19.12.3 Setting the O2 trim controller.......................................................................289
19.12.4 Other notes.................................................................................................. 289
19.13 Technical data .............................................................................................290
−Basic unit LMV52... .......................................................................290
−PLL52... ..............................................................................................290
−Environmental conditions ................................................................290
19.14 Terminal ratings, line lengths and cross-sectional areas.............................291
−Basic unit LMV52................................................................................ 291
−PLL52... ..............................................................................................291
−Analog inputs .................................................................................. 291
20 Dimensions................................................................................................291
−PLL52... ..............................................................................................291
21 Revision history.........................................................................................292
−Notes on compatibility .....................................................................292
21.1 Basic unit LMV51.........................................................................................292
−Software changes ........................................................................... 292
21.1.1 Program stop...............................................................................................292
21.1.2 Deactivating the alarm.................................................................................292
21.1.3 «GPmin» in the oil program.........................................................................292
21.1.4 «SV» oil, switch-off time ..............................................................................292
21.1.5 «DWminOil» in program «Heavy oil with gas pilot».....................................292
21.1.6 «DWminOil» is only valued during the safety time after a delay time has
elapsed 293
21.1.7 Air pressure switch test valve, inverted control ...........................................293
21.1.8 External controller contact with «Manually on» ...........................................293
21.1.9 Prepurge time after safety shutdown...........................................................293
21.1.10 Changes to the supplied parameter set.......................................................293
21.1.11 Driving to the low-fire positions....................................................................293
21.2 Basic unit LMV52.........................................................................................293
21.3 Load controller card.....................................................................................293
−Software changes of «LC»..............................................................293
21.3.1 Auxiliary sensor for cold start thermal shock protection ..............................293
21.3.2 Straightforward changeover of operation to internal load controller ............293
21.3.3 With software version V01.50 or higher, Pt100 sensors in operating mode
6 are permitted ............................................................................................................294
New load controller function for manipulated variable input and load output ..............294
−Modulating burners .........................................................................294
−Multistage burners...........................................................................294
21.3.4 Plausibility check at inputs X61 and X62.....................................................294
21.4 Display and operating unit AZL5... ..............................................................295
21.4.1 Software changes to the flash memory .......................................................295
21.4.2 New designations of load controller inputs ..................................................295
21.4.3 Fuel counter with reading in liters................................................................295

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21.4.4 Preventing the transfer of parameter copies from new basic units to the
backup memory of the AZL5........................................................................................295
21.4.5 Parameter changes......................................................................................295
21.4.6 Name changes of load controller operating modes .....................................295
21.4.7 New display text for actuator faults ..............................................................296

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1 Safety notes
1.1 Warnings
Observe the following warning notes to help prevent damage to persons, prop-
erty or the environment!
The LMV5... is a safety device! Do not interfere with or modify the unit. Siemens
BT will not assume responsibility for damage resulting from unauthorized inter-
ference!
The addendum to the LMV51.2... and LMV52... documentation contains additional
warning notes which should also be observed when using these system variants.
After commissioning and after each service visit, check the flue gas values
across the entire load range.
The present Basic Documentation describes a wide choice of applications and func-
tions and shall serve as a guideline. The correct functioning is to be checked and
proven with the help of functional tests on a test rig or on the plant itself!
•All activities (mounting, installation, service work, etc.) must be performed by quali-
fied staff
•Degree of protection IP40 as per DIN EN 60 529 for burner controls must be en-
sured through adequate mounting by the burner or boiler manufacturer
•Before performing any work in the connection area of the LMV5…, disconnect the
unit from the mains supply (all-polar disconnection)
•Protection against electrical shock hazard on the LMV5... and on all connected
electrical components must be ensured through appropriate mounting
•Check to ensure that wiring is in an orderly state
•Fall or shock can adversely affect the safety functions. Such units must not be put
into operation even if they do not exhibit any damage
•In programming mode, the position check of the actuators and the VSD (checking
electronic fuel / air ratio control) is different from the check during automatic opera-
tion. Like in automatic operation, the actuators are still jointly driven to their re-
quired positions. If an actuator does not reach the required position, corrections are
made until that position is reached. However, in contrast to automatic operation,
there are no time limits for these corrective actions. The other actuators maintain
their positions until all actuators have reached the positions currently required. This
is essential for setting fuel /air ratio control. This means that during the time the ra-
tio curves are programmed, the person making the plant settings must continuously
monitor the quality of the combustion process (e.g. by means of a flue gas ana-
lyzer). Also, if combustion levels are poor, or in the event of dangerous situations,
the commissioning engineer must take appropriate action (e.g. switching off the
system manually)
To ensure the safety and reliability of the LMV5... system, the following points must
also be observed:
-Condensation and ingress of humidity must be avoided. Should such conditions
occur, make sure that the unit will be completely dry before switching on again!
-Static charges must be avoided since they can damage the unit’s electronic com-
ponents when touched.
Recommendation: Use ESD equipment

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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
1.3 Installation notes
•Ensure that the electrical wiring inside the boiler is in compliance with national and
local safety regulations
•Mains power must always be supplied via L and N. This means that no potential
differential may exist between the neutral conductor N and protective earth PE
•Make certain that strain relief of the connected cables is in compliance with the
relevant standards (e.g. as per DIN EN 60730 and DIN EN 60 335)
•Ensure that spliced wires cannot get into contact with neighboring terminals. Use
adequate ferrules
•Lay the high-voltage ignition cable completely separate from all other cables
•The burner manufacturer must protect unused AC 230 V terminals with dummy
plug (refer to sections 2.2 Product range overview and 12.2 Suppliers of other ac-
cessory items)
•When wiring the unit, ensure that AC 230 V mains voltage cables are run strictly
separate from extra low-voltage cables to warrant protection against electrical
shock hazard
•This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
Instruction Manual, may cause harmful interference to radio communications. Op-
eration of this equipment in a residential area is likely to cause harmful interference
in which case the user will be required to correct the interference at his own ex-
pense
•This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installa-
tion. This equipment generates, uses and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions, may cause harmful in-
terference to radio communications. However, there is no guarantee that interfer-
ence will not occur in a particular installation
If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
•Reorient or relocate the receiving antenna
•Increase the separation between equipment and receiver
•Connect the equipment into an outlet on a circuit different from that to which the re-
ceiver is connected
•Consult the dealer or an experienced radio / TV technican for help
Only for US:
Interference caused by
high-frequency energy

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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
– Use a separate cable
•Observe the permissible cable lengths
•The ionization probe is not protected against electrical shock hazard. The mains-
powered ionization probe must be protected against accidental contact
1.5 Commissioning notes
•Prior to commissioning, check to ensure that wiring is in an orderly state and that
the parameter are correctly set
•When commissioning the unit, check all safety functions
•There is no absolute protection against incorrect use of the RAST5 connectors. For
this reason, prior to commissioning the plant, check the correct assignment of all
connectors
•Electromagnetic emissions must be checked on an application-specific basis
1.6 Setting and parameter setting notes
•When adjusting the electronic fuel / air ratio control system integrated in the
LMV5…, allow for sufficient amounts of excess air since – over a period of time –
the flue gas settings will be affected by a number of factors (e.g. density of air,
wear of actuating devices, etc.). For this reason, the flue gas values initially set
must be checked at regular intervals
•To provide protection against inadvertent or unauthorized parameter transmission
between the parameter backup memory of the AZL5... display and operating unit and
the LMV5... basic unit, the OEM (burner or boiler manufacturer) must enter an indi-
vidual burner identification (ID) for each burner. Compliance with this regulation is
mandatory to ensure that the LMV5… system will prevent parameter sets from other
plant (with unsuited and possibly dangerous parameter values) to be transmitted to
the LMV5… basic unit via the backup memory of the AZL5... (also refer to the de-
scription of burner identification in chapter 7 Display and operating unit AZL5...)
•With the LMV5..., it is to be noted that the unit’s characteristics are determined pri-
marily by the specific parameter settings rather than by the type of unit. This means
that, among other things, each time a plant is commissioned, the parameter set-
tings must be checked and the LMV5... must not be transferred from one plant to
another without adapting the parameter settings to the new plant
•In the case of dual-fuel burners and oil-firing, the short preignition (Phase 38) pa-
rameter OnTmeOilIgnition is to be selected and a magnetic clutch is to be used,
ensuring that there will be no oil pressure until this phase is reached. Then, the
long preignition (from Phase 22) must be parameterized
•When using the ACS450 PC software, the safety notes given in the relevant Oper-
ating Instructions (CC1J7550) must also be observed
•A password protects the parameter setting level against unauthorized access. The
OEM allocates individual passwords to the setting levels he can access. The stan-
dard passwords used by Siemens BT must be changed by the OEM. These pass-
words are confidential and may only be passed on to persons authorized to access
such setting levels
•The responsibility for setting the parameters lies with the person who – in accor-
dance with his access rights – has made changes to the respective setting level
In particular, the OEM will assume responsibility for the correct parameter set-
tings in compliance with the standards covering the specific applications (e.g.
EN 676, EN 267, EN 1643, etc.).

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1.7 Norms and standards
•Conformity with EEC directives
– Electromagnetic compatibility EMC (immunity) 89 / 336 EEC
– Directive for gas appliances 90 / 396 EEC
– Low-voltage directive 73 / 23 EEC
1.8 Service notes
•Each time a unit has been replaced, check to ensure that wiring is in an orderly
state
•If fuses are blown, return the complete unit to Siemens BT
1.9 Disposal notes
The unit contains electrical and electronic components and must not be disposed of to-
gether with household waste. Legal and currently valid legislation must be observed.

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2 General
2.1 Brief description
The LMV5... is a microprocessor-based burner management system with matching sys-
tem components for the control and supervision of forced draft burners of medium to
large capacity.
The following components are integrated in the basic unit of the LMV5...:
•Burner control with gas valve proving system
•Electronic fuel / air ratio control system for a maximum of 4 actuators
•Optional PID temperature / pressure controller (load controller)
•VSD module
The system components (AZL5... display and operating unit, actuators, O2 module,
etc.) are interconnected via a bus system. Communication between the individual CAN
bus users’ takes place via a reliable, system-based data bus.
The safety concept makes use of 2 microprocessors for 2-channel signal processing.
It offers a very high level of safety and reliability for monitoring the software and the pro-
gram and control sequences.
All safety-related digital outputs of the system are permanently monitored via a contact
feedback network.
For flame supervision in connection with the LMV5..., universal infrared flame detectors
type QRI... or ionization probes can be used for continuous operation, and photoresistive
flame detectors type QRB... for intermittent operation.
Example: Dual-fuel burner
- Gas: Modulating
- Oil: 2-stage
Basic diagram

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The burner management system is operated and programmed with the help of the
AZL5… display and operating unit or a PC tool.
The AZL5… with LCD cleartext and menu-driven operation affords straightforward op-
eration and targeted diagnoses.
For making diagnoses, the LCD shows the operating states, the type of fault and the
point in time the fault occurred.
The parameter setting levels for the burner / boiler manufacturer and heating engineer
are password-protected to prevent unauthorized access.
Basic settings that the plant operator can make on site do not demand a password.
Also, the AZL5... is used as an interface for superposed systems such as a building
automation and control system, or for a PC using the ACS450 software.
Among other features, the unit affords convenient readout of settings and operating
states, parameterization of the LMV5..., and trend recording.
When replacing the LMV5... basic unit (BU), all parameters can be saved in a backup
memory of the AZL5... to be loaded back into the basic unit.
This means that reprogramming is not required.
When designing the fuel trains, the burner / boiler manufacturer can choose from a total
of 7 valve families. The large number of individual parameterization choices (program
times, configuration of inputs / outputs, etc.) enable him to make optimum adaptions to
the specific application.
The universal SQM4... actuators are driven by stepper motors and can be positioned
with high resolution. The characteristics and settings of the actuators are defined by the
basic unit of the LMV5...