Siemens LMV 5 Series User manual

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
A
ZL52: V05.10
PLL52: V01.50
CC1N7550en
22.05.2017
Building Technologies Division
7550
Burner Management
System LMV5...
Burner management system with integrated fuel / air ratio control and load
control for use with forced draft burners. With specific functions for industrial
applications.
Burner management system with integrated fuel / air ratio control and load
control for use with forced draft burners.
Burner management system with integrated fuel / air ratio control and load
control for use with forced draft burners including oxygen trim control.
The LMV5 and this Data Sheet are intended for use by OEMs which integrate the
burner management systems in their products!
Use
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.
Notes
Warning!
The safety, warning and technical notes given in the Basic Documentation on
the LMV5 (P7550) apply fully to the present document also!
LMV50
LMV51
LMV52

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Standards and certificates
Applied directives:
Low-voltage directive 2014/35/EC
Directive for gas-fired appliances 2009/142/EC
Directive for pressure devices 2014/68/EC
Electromagnetic compatibility EMC
(immunity) *)
2014/30/EC
*) The compliance with EMC emission requirements must be checked after the burner management
system is installed in equipment
Compliance with the regulations of the applied directives is verified by the adherence to
the following standards / regulations:
Automatic burner control systems for burners and
appliances burning gaseous or liquid fuels
DIN EN 298
Safety and control devices for gas burners and gas
burning appliances - Valve proving systems for
automatic shut-off valves
DIN EN 1643
Gas/air ratio controls for gas burners and gas burning
appliances
Part 2: Electronic types
DIN EN 12067-2
Safety and control devices for gas burners and gas burning
appliances - General requirements
DIN EN 13611
Safety and control devices for gas and/or oil burners and
gas and/or oil appliances -- Particular requirements
Part 1: Fuel-air ratio controls, electronic type
ISO 23552-1
Automatic electrical controls for household and similar use
Part 2-5:
Particular requirements for automatic electrical burner
control systems
DIN EN 60730-2-5
The relevant valid edition of the standards can be found in the declaration of
conformity!
Note on DIN EN 60335-2-102
Household and similar electrical appliances - Safety - Part 2-102:
Particular requirements for gas, oil and solid-fuel burning appliances having electrical
connections.
The electrical connections of the LMV5 and the PLL5 comply with the requirements of
EN 60335-2-102.
EAC Conformity mark (Eurasian Conformity mark)
ISO 9001:2008
ISO 14001:2004
OHSAS 18001:2007
China RoHS
Hazardous substances table:
http://www.siemens.com/download?A6V10883536

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Standards and certificates (cont’d)
Europe Eurasian USA Australia Ships
Type
LMV50.320B2   --- --- --- --- 
LMV51.000C2   --- --- 
LMV51.040C1 ---       ---
LMV51.100C1   --- ---   
LMV51.100C2   --- --- 
LMV51.140C1 --- --- ---     ---
LMV51.300B1 --- ---   
LMV51.300B2 --- --- 
LMV51.340B1 --- --- ---     ---
LMV52.200B1 --- ---   
LMV52.200B2 --- --- 
LMV52.240B1 ---     ---
LMV52.240B2 --- --- --- ---
LMV52.400B2 --- ---   
LMV52.440B1 --- --- ---     ---
LMV5 system components:
AZL52      --- 
SQM45/SQM48       
SQM9      --- --- ---
QRI2       
QRA7      --- 
PLL52       --- ---
QGO20      --- --- ---
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.
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.

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Supplementary documentation
Type of product Type of documentation No. of documentation
AZL5 User Documentation A7550
LMV5 User Manual
Basic diagram of LMV5 for 2 types of gas
A7550.1
LMV5 User Manual
Basic diagram of LMV5 for 2 types of liquid fuel
A7550.3
LMV5 User Manual
Assembly of VKF41.xxxC gas damper with ASK33.4
mounting kit to the SQM45.295A9 actuator
A7550.4
LMV52 User Manual
COx supervision and control
A7550.5
LMV5 Setting Lists (parameter and error list) I7550
ACS450 Installation Guide J7550
LMV5 Installation Guide J7550.1
LMV5 Basic Documentation P7550
LMV5 Product Range Overview
This document contains a complete overview
Q7550
AZL52 / LMV51 User Manual U7550
AZL52 / LMV51 User Manual U7550.1
AZL52 / LMV52 User Manual U7550.2
AZL52 / LMV52 User Manual U7550.3
AZL52 / LMV50 User Manual U7550.4
AZL52 / LMV50 User Manual U7550.5
SQM45 / SQM48 Data Sheet N7814
SQM9 Data Sheet N7818
QGO20 Data Sheet N7842
QGO20 Basic Documentation P7842
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. 10
years of usage (starting from the production date given on the type field).
This is based on the continuous tests specified in standards EN 298.
A summary of the conditions has been published by the European Control
Manufacturers Association (Afecor - www.afecor.org).
The designed lifetime is based on use of the LMV5 according to the manufacturer’s
Data Sheet and Basic Documentation. After reaching the designed lifetime in terms of
the number of burner startup cycles, or the respective time of usage, the LMV5 is to be
replaced by authorized personnel.
* The designed lifetime is not the warranty time specified in the Terms of Delivery

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Mechanical design
The following components are integrated in the LMV5:
Burner control with gas valve proving system
Electronic fuel-air ratio control for:
- A maximum of 4 actuators for LMV50 / LMV51
- A maximum of 6 actuators for LMV52
Optional PID temperature or pressure controller (boiler controller / load controller)
Optional VSD module
Example:
Dual-fuel burner
- Gas: Modulating
- Oil: 2-stage
The system components (AZL5, actuators, O2 module, etc.) are interconnected via a
bus system. Communication between the bus users takes place via a safety-related,
system-bound data bus (for safety reasons, integration of the bus into external CAN
bus systems is not possible). All safety-related digital outputs of the system are
permanently monitored via a contact feedback network. For flame supervision in
connection with the LMV5 and continuous operation, the infrared flame detector type
QRI / flame detector QRA7 or an ionization probe can be used, for intermittent
operation, optical flame detectors QRB / QRA2 / QRA4 / QRA10 with AGQ1 (AC 230
V).
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. 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 require a password. Also,
the AZL5 is used as an interface for superposed systems such as a building automation
and control system (BACS), 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, all
parameters can be saved in a backup memory of the AZL5 to be loaded back into the
LMV5.
This means that reprogramming is not required.

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Mechanical design (cont'd)
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 / SQM9 actuators are driven by stepper motors and can be
positioned with high resolution. The characteristics and settings of the actuators are
defined by the LMV5.
Type summary
Type reference Mains voltage Parameter set Max. number of actuators Automatic adaptation of controller’s characteristics Limit thermostat Fuel meter input Integrated gas valve proving Integrated PID load controller Control of VSD Analog output O2 trim control
**)
Safety time TSAmax.
Ga
s
Oil
LMV50.320B2
A
C 230 V LMV50 5 *)    --- 10
s
15 s
LMV51.000C2
A
C 230 V Europe 4 --- --- --- --- --- --- --- 10
s
15 s
LMV51.040C1
A
C 120 V US / Canada 4 --- --- --- --- --- --- --- 10
s
15 s
LMV51.100C1
A
C 120 V Europe 4   ---   --- --- 10
s
15 s
LMV51.100C2
A
C 230 V Europe 4   ---   --- --- 10
s
15 s
LMV51.140C1
A
C 120 V US / Canada 4   ---   --- --- 10
s
15 s
LMV51.300B1
A
C 120 V Europe 5 *)      --- 10
s
15 s
LMV51.300B2
A
C 230 V Europe 5 *)      --- 10
s
15 s
LMV51.340B1
A
C 120 V US / Canada 5 *)      --- 10
s
15 s
LMV52.200B1
A
C 120 V Europe 6      10
s
15 s
LMV52.200B2
A
C 230 V Europe 6      10
s
15 s
LMV52.240B1
A
C 120 V US / Canada 6      10
s
15 s
LMV52.240B2
A
C 230 V US / Canada 6      10
s
15 s
LMV52.400B2
A
C 230 V Europe 6     10
s
15 s
LMV52.440B1
A
C 120 V US / Canada 6     10
s
15 s
*) When the VSD module is activated, only 4 SQM4/SQM9 actuators can be controlled!
**)
Attention!
The maximum safety time in the parameter set is set as follows ex works:
Parameter set Gas Oil
LMV50 10 s 10 s
Europe 3 s 5 s
US / Canada 10 s 15 s
On the OEM access level, it is possible to make parameter settings that differ
from application standards. For this reason, check whether the parameter
settings made are in compliance with the application standards (e.g. EN 676, EN
267, etc.), or whether the respective plant requires special approval!

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Technical data
Mains voltage AC 120 V
-15% / +10%
AC 230 V
-15% / +10%

Note!
Only for use in earthed networks!
Transformer
- Primary side
- Secondary side 1
- Secondary side 2
AGG5.210
AC 120 V
12 V~
2 x 12 V~
AGG5.220
AC 230 V
12 V~
2 x 12 V~
Mains frequency 50 / 60 Hz ±6% 50 / 60 Hz ±6%
Power consumption <30 W (typically) <30 W (typically)
Safety class I, with parts according to II and III to
DIN EN 60730-1
Terminal loading «Inputs»
Perm. mains primary fuse
(externally)
Max. 16 AT Max. 16 AT
Unit fuse F1 (internally) 6.3 AT to
DIN EN 60127 2/5
6.3 AT to
DIN EN 60127 2/5
Mains supply: Input current depending on operating state of the unit
Undervoltage
Safety shutdown from operating
position at mains voltage
<96 V~ <186 V~
Restart on rise in mains voltage >100 V~ >188 V~
Oil pump / magnetic clutch
(nominal voltage)
Nominal current 1,6 A 2 A
Power factor Cos>0.4 Cos>0.4
Air pressure switch test valve (nominal
voltage)
Nominal current 0.5 A 0.5 A
Power factor Cos>0.4 Cos>0.4
Status inputs (KRN): Status inputs (with the exception of the safety loop) of the
contact feedback network (CFN) are used for system supervision and require mains-
related input voltage
Input safety loop Refer to «Terminal loading outputs»
Input currents and input voltages
- UeMax
- UeMin
- IeMax
- IeMin
UN +10%
UN -15%
1.5 mA peak
0.7 mA peak
UN +10%
UN -15%
1.5 mA peak
0.7 mA peak
Contact material recommendation
for external signal sources (LP,
DWmin, DWmax, etc.)
Gold-plated silver contacts
Transition / settling behavior /
bounce
- Perm. bounce time of contacts
when switching on / off
Max. 50 ms
(after the bounce time, the contact must
stay closed or open)
UN AC 120 V AC 230 V
Voltage detection
- On
- Off
90...132 V~
<40 V~
180...253 V~
<80 V~
Terminal loading «Outputs»
Total contact loading:
(nominal voltage) AC 120 V
-15 % / +10 %
AC 230 V
-15 % / +10 %
Unit input current (safety loop) total
contact current from:
- Fan motor contactor
- Ignition transformer
- Valves
- Oil pump / magnetic clutch
Max. 5 A Max. 5 A
LMV5

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Technical data (cont’d)
Individual contact loading:
Fan motor contactor
Nominal voltage AC 120 V AC 230 V
Nominal current 1 A 1 A
Power factor Cos>0.4 Cos>0.4
Alarm output (nominal voltage)
Nominal current 1 A 1 A
Power factor Cos>0.4 Cos>0.4
Ignition transformer (nominal voltage)
Nominal current 1.6 A 2 A
Power factor Cos>0.2 Cos>0.2
Gas valves-gas (nominal voltage)
Nominal current 1.6 A 2 A
Power factor Cos>0.4 Cos>0.4
Oil valves-oil (nominal voltage)
Nominal current 1.6 A 1 A
Power factor Cos>0.4 Cos>0.4
Cable lengths
Mains line Max. 100 m
(100 pF/m)
Max. 100 m
(100 pF/m)
HCFN line Max. 100 m
(100 pF/m) ¹)
Max. 100 m
(100 pF/m) ¹)
Analog line Max. 100 m
(100 pF/m)
Max. 100 m
(100 pF/m)
Flame detector Refer to chapter «Technical Data / Flame
supervision»
CAN bus Total lengths max. 100 m
Note!
¹) If the cable length exceeds 50 m, additional loads must not be connected to the
status inputs (refer to «Power supply for the LMV5»)!
Above a certain cable length, the actuators must be powered by a separate transformer
installed near the actuators.
The cross-sectional areas of the mains power lines (L, N, PE) and, if required, the
safety loop (safety limit thermostat, water shortage, etc.) must be sized for nominal
currents according to the selected external primary fuse. The cross-sectional areas of
the other cables must be sized in accordance with the internal unit fuse (max. 6.3 AT).
Min. cross-sectional area 0.75 mm²
(single- or multi-core to VDE 0100)
Cable insulation must meet the relevant temperature requirements and conform to the
environmental conditions. The CAN (bus) cables have been specified by Siemens and
can be ordered as accessory items. Other cables must not be used. If this is not
observed, the EMC characteristics of the LMV5 will be unpredictable!
Nominal voltage AC 120 V
-15 % / +10 %
AC 230 V
-15 % / +10 %
Fuses used in the LMV5
- F1 6.3 AT
DIN EN 60127 2/5
6.3 AT
DIN EN 60127 2/5
- F2 4 AT
GMD-4A
4 AT
DIN EN 60127 2/5
- F3 4 AT
GMD-4A
4 AT
DIN EN 60127 2/5
Cross-sectional areas

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Technical data (cont’d)
Operating voltage 24 V~ -15 % / +10 %
Power consumption <5 W (typically)
Degree of protection of housing
- Rear
- Front
IP00 to IEC 529
IP54 to IEC 529 when installed
Safety class I, with parts according to II and III to
DIN EN 60730-1
Battery:
Supplier Type reference
VARTA CR 2430 (LF-1/2 W)
DURACELL DL 2430
SANYO ELECTRIC, Osaka / Japan CR 2430 (LF-1/2 W)
RENATA AG, Itingen / CH CR 2430
Pollution degree 2
Mains voltage «X89-01»
A
C 120 V
–15 % / +10 %
A
C 230 V
-15 % / +10 %
Safety class I, with parts according to II
to DIN EN 60730-1
Mains frequency 50 / 60 Hz ±6% 50 / 60 Hz ±6%
Power consumption Approx. 4 VA Approx. 4 VA
Degree of protection IP54, housing closed
Cable lengths / cross-sectional areas:
Electrical connection «X89» Screw terminals up to 2.5 mm²
Cable lengths 10 m to QGO20
Cross-sectional areas Refer to QGO description, twisted pairs
Analog inputs:
Supply air temperature sensor Pt1000 / LG-Ni1000
Flue gas temperature sensor Pt1000 / LG-Ni1000
QGO20 Refer to Data Sheet N7842
Interface Communication bus for LMV52
Transformer AGG5.220
- Primary side
- Secondary side
AC 230 V
12 V~ (3x)
Transformer AGG5.210
- Primary side
- Secondary side
AC 120 V
12 V~ (3x)
Cable types:
AGG5.641 8 mm dia. +0,5 / -0,2 mm
Bending radius ≥120 mm
Ambient temperature -30...+70 °C
(no movements of cable)
Cable is 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
(no movements of cable)
Cable is resistant to almost all types of
mineral oil
AZL5
PLL52
AGG5.2
CAN bus cable

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Technical data (cont’d)

Note:
All measured voltages refer to connection terminal N (X10–02, pin 4).
Supply voltage operation / test at
terminal POWER QRI (X10–02, pin 2)
Approx. DC 14 / 21 V
Minimum signal voltage required at
terminal FSV / QRI (X10–02, pin 6)
Min. DC 3,5 V
Display flame approx. 50 %
br
0...10 V
Ri 10 M>
X10-02 / 6 Signal
X10-02 / 4 N
X10-02 / 2 Power supply
and test
LMV...
+
sw
For detailed information, refer to Data Sheet N7719.
No-load voltage at terminal ION (X10–
03, pin 1) Approx. UMains
Caution!
The ionization probe must be installed such that protection against electrical
shock hazard is ensured!
Short-circuit current Max. 0,5 mA~
Required detector current Min. DC 6 µA
Display flame approx. 50 %
(at factory setting of StandardFactor)
parameter)
Possible detector current Max. DC 85 µA
Display flame approx. 100 %
(at factory setting of StandardFactor)
parameter)
Permissible length of detector cable
(lay separately)
100 m
(wire-earth 100 pF/m)
Note!
The greater the detector cable capacitance (cable length), the lower the voltage at the
ionizations probe and, therefore, the lower the detector current. In the case of
extensive cable lengths and high-resistance flames, it may be necessary to use low-
capacitance cables (e.g. ignition cable). The electronic circuit is designed such that
impacts of the ignition spark on the ionization current will be largely eliminated.
Nevertheless, it must be ensured that the minimum detector current required will
already be reached during the ignition phase. If that is not the case, the connections of
the ignition transformer on the primary side must be changed and / or the location of
the electrodes also.
Flame supervision
QRI (suited for
continuous operation)
Connection diagram
IONIZATION (suited for
continuous operation)

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Technical data (cont’d)
For intermittent operation only.
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
5 seconds.
For more detailed information about QRA2 / QRA10, refer to Data Sheet N7712.
For more detailed information about QRA4, refer to Data Sheet N7711.
Caution!
QRA2 (QRA4 / QRA10 must not be used when extraneous light suppression is
activated since detector tests will not be made in that case!
Possible ionization current Max. 10 µA
Ionization current required Min. 6 µA
In connection with the LMV5, ancillary unit AGQ1.xA27 must be used.
Power supply AC 230 V
Possible current Max. 500 µA
Current required Min. 200 µA
Assignment of LMV5 terminals:
X10-02 pin 3 L
X10-02 pin 4 N
X10-03 pin 1 Ionization
X3-01 pin 1 Fan
Code of color
br = brown
bl = blue
sw = black
gr = grey (old: rt = red)
When laid together with other cables (e.g. in a cable duct), the length of the 2-core
cable between QRA and AGQ must not exceed 20 m. A maximum cable length of 100
m is permitted if the 2-core cable is run at a distance of at least 5 cm from other live
cables. The length of the 4-core cable between AGQ and LMV5 is limited to
20 m. A maximum cable length of 100 m is permitted if the signal line (ionization /
black) is not run in the same cable but separately at a distance of at least 5 cm from
other live cables.
Flame supervision
QRA2 / QRA4 / QRA10
with AGQ1.xA27
QRA
LMV5
A
GQ1.xA27
Connection diagram

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Technical data (cont’d)
Power supply
- QRA73A17 / QRA75A17
- QRA73A27 / QRA75A27
AC 120 V
AC 230 V
Power supply for test via increasing the
power supply for QRI
(X10-02 pin 2)
From DC 14 V up to DC 21 V
Required signal voltage
(X10-02 pin 6)
Min. DC 3.5 V
Perm. length of detector cable
- 6 wire cable
- Signal cable no. 3, 4 and 5
Max. 10
Max. 100 m (lay separately from L, N and
PE in shielded cable)
QRA7...
For more detailed information about QRA7, refer to Data Sheet N7712.
7550a22/0108
LMV5...
X10-02.6
X10-02.2
X10-02.5
X10-02.4
X10-02.3
QRA7...
0...10 V
+
Ri > 10 M 
4
3
PE
2
1
5
Assignment of LMV5 terminals:
X10-02 pin 2 QRI supply
X10-02 pin 3 L
X10-02 pin 4 N
X10-02 pin 5 PE
X10-02 pin 6 QRI signal
Flame supervision
QRA7
(suited for continuous
operation)
Connection diagram

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Technical data (cont’d)
No-load voltage at the QRB terminal
(X10–02, pin 1)
Approx. DC 8 V
Detector current required (with flame) Min. DC 30 µA
Display flame 35 %
(at factory setting of StandardFactor)
parameter)
Permissible detector current (dark current
with no flame)
Max. DC 5 µA
Permissible detector current Max. DC 70 µA
Display flame approx. 100 %
(at factory setting of StandardFactor)
parameter)
Permissible length of QRB detector cable
(lay separately)
100 m (wire-wire 100 pF/m)
Note!
A detector resistance value of RF <5 kis identified as a short-circuit and, in
operation, will lead to safety shutdown as if loss of flame had occurred. Measurement
of the voltage at terminal QRB during burner operation gives a clear indication: If
voltage drops below 1 V, safety shutdown will probably occur. For that reason, before
using a highly sensitive photoresistive flame detector (QRB1B, QRB3S), it should be
checked whether such a detector is really required! Increasing line capacitance
between the QRB terminal and mains live «L» adversely affects the sensitivity and
increases the risk of damaged flame detectors due to mains overvoltages. Separate
routing of detector cables as specified in Data Sheet 7714 must be observed.
For more detailed information, refer to Data Sheet N7714.
Caution!
Flame detectors QRB must not be used when extraneous light suppression is
activated since detector tests are not made in that case (parameter
ExtranLightTest = deactivated)!
Caution!
Observe the relevant standards and regulations (e.g. extra supervision of the
combustion chamber temperature)!
The following applies in general to the flame signal display (AZL5 display and
operating unit):
The percentages values listed above result from the factory setting of the parameter
Standardize (standardization of flame signal display).
The display is subject to various component tolerances, with the result that deviations
of 10 % are perfectly possible.
It should furthermore be noted that for physical reasons, there is no linear connection
between the display and detector signal values.
This is especially apparent in supervision of ionization.
Flame supervision
QRB (for intermittent
operation only)
Flame signal display
A
ZL5

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Technical data (cont’d)
Storage DIN EN 60721-3-1
Climatic conditions Class 1K3
Mechanical conditions Class 1M2
Temperature range -20...+60 °C
Humidity <95% r.h.
Transport DIN EN 60721-3-2
Climatic conditions Class 2K2
Mechanical conditions Class 2M2
Temperature range -20...+60 °C
Humidity <95% r.h.
Operation DIN EN 60721-3-3
Climatic conditions Class 3K3
Mechanical conditions Class 3M3
Temperature range -20...+60 °C
Humidity <95% r.h.
Installation altitude Max. 2,000 m above sea level
Caution!
Condensation, formation of ice and ingress of water are not permitted!
Environmental
conditions
(all LMV5 components)

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Block diagram inputs / outputs
X3-04.3
X3-04.5 Power supply live conductor (L)
X3-04.4 Power supply neutral conductor (N)
Protective earth (PE)
X3-04.2 Power signal for safety loop
X3-04.1 Safety loop
X3-03.2 Power signal for end switch burner flange
X3-03.1 End switch burner flange
(part of safety loop)
X3-01.2 Alarm
X3-01.1 Fan motor contactor
IgnitionX4-02.3
Start signal or PS relief (APS test valve)X4-03.3
Oil pump / magnetic clutchX6-02.3
Fuel valve SV (OIL)X6-03.3
Fuel valve V2 (OIL)X7-01.3
Fuel valve V3 (OIL)X7-02.3
Fuel valve V1 (OIL)
X8-02.1
Auxiliary terminal for valves connected in seriesX8-02.2
Fuel valve V1 (OIL)X8-03.1
Auxiliary terminal for valves connected in seriesX8-03.2
Signal lamp oil
X8-01.2
Signal lamp gasX8-01.1
X4-02.2
X4-03.2
X6-02.2
X6-03.2
X7-01.2
X7-02.2
X8-02.3
X8-03.3
M
P
SLT AUX WATER-
SHORTAGE
L1-L3
FAN
PE
N
L1
F 6.3 AT
L1'
OIL
OIL + GAS
OIL + GAS
LMV5... LMV5...
3
7550a10e/0903

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Block diagram inputs / outputs (cont'd)
PRI
LINE
1
T1
AGG5.2
P
ON/OFF
Power signal for
air pressure switch (LP)
P
Pmax
START
HO-START
P
max
LT
L1'
QRB
INT
P
P
7550a26e/0216
black
START
QRA
PE
Fuel valve V1 (GAS)
Fuel valve PV (GAS)
Fuel valve SV (GAS)
Air pressure switch (LP)
Fuel selection GAS
Fuel selection OIL
Fan condactor contact (GSK) or ARF-DW
Lockout / manual locking
Controller (ON/OFF)
Controller closed / stage 3
Controller open / stage 2
Start release oil (START)
Heavy oil - direct start
Oil pressure switch-min
Oil pressure switch-max
Start release for gas (START) or
CPI (oil and/or gas)
Gas pressure switch-min
Gas pressure switch-max
Gas pressure switch - valve proving /
valve proving or valve closure contact (CPI)
Flame alternative 1
QRI (IR detector) signal voltage
QRI ( IR detector) supply voltage
Protective earth (PE)
Neutral conductor (N)
Fan
Ionization
Flame alternative 2
Flame alternative 3
QRA7 signal voltage
QRA7 supply voltage
Protective earth (PE)
Neutral conductor (N)
Power signal (L)
Fuel valve V2 (GAS)
Neutral conductor (N)
Power signal (L)
Ionization probe (ION)
QRB signal voltage
Power signal (L)
OIL
OIL+GAS
Power signal for
controller contro
Power signal for
start release oil
Power signal for
heavy oi - direct start
Power signal for
oil pressure switch-min
Power signal for
oil pressure switch-max
Power signal for
start release gas
Power signal for
pressure switch
Neutral conductor
Power signal
transformer
AC power signal G0
AC power signal G
OIL
blue
brown
gr

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Block diagram inputs / outputs (cont'd)
Pt 100 Pt/Ni 1000
+
+
+
+
BUS
CANH
CANL
BUS
12VAC1
12VAC2
12VAC1
12VAC2
12VAC1
12VAC2
12VAC1
12VAC2
FE
FEFEFE
Brown
CANH
CANL
Brown
SEK II
12VAC
FE
T1
AGG5.2
12V 0 0 12V
DEFL
12 43
2
1
CDO
(02-D)
DFO
(02-I)
LINE
12V/1,2A
1 2
SEK II SEK III SEK I
PRI

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Connection terminals
FE 0 V
Shielding:
a) Optional shield connection for rough environmental conditions
b) Alternative connection of VSD, refer to documentation of used VSD

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Terminal marking of LMV52 with PLL52 O2 module (cont’d)
Pt/LG-Ni 1000
CANH
CANL
BUS
CANH
CANL
BUS
12VAC1
12VAC2
12VAC1
12VAC2
12VAC1
12VAC2
FE
FE
Brown
braun
FE
U3
PE
F 6.3 AT
Pt/LG-Ni 1000
Temporary connection for AZL5...
X86X87
X81
X89-01
X89-02
X85
X84

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Fuel train (examples)
V1 V2
Direct ignitionProgram
PS
max
PS
VP
SV V1
ACT
V2
Program Gp1 Gas pilot
7550s02E/0202
PV
PS
min
PS
VP
PS
max
SV
PS
max ACT
V2
Program Gp2 Gas-Pilot
7550s17E/0202
PS
min
PV
V1
PS
VP
Gas (always modulating)
PILOT ignition 1
Gp2
V1
V2
7550f01a/0511
Legend (fuel trains):
*) Not used
1) Preheating device
HO Heavy oil
LO Light oil
No Normally Open
DK Gas valve proving
DW Pressure switch
HE Heating element
SA Actuator
SV Shutoff valve (outside the building)
PV Pilot valve
V Fuel valve
Direct gas ignition
Gas pilot ignition 1
Gas pilot ignition 2
Fuel valve control