Siemens LMV52 series User Manual Download Page 1

Page: 1 / 17

Based on the following
software versions:
LMV50... :

V10.20

LMV51... :

V05.10

LMV51.3… :

V05.10

LMV52.2.. :

V05.10

LMV52.4... :

V10.20

Int. LR module:

V02.10

Int. VSD module: V01.50
AZL52...: V05.00
PLL52...: V01.50
CC1A7550.5en
07.07.2015

Building

Technologies

Division

LMV52…

Burner management system for forced draft
burners

LMV52.4…:
- COx supervision and control

User Manual

The LMV5 and this User Manual are intended for OEMs which integrate the LMV5
in their products!



Note!
This documentation is only valid together with the LMV5... Basic
Documentation P7550.

Summary of Contents for LMV52 series

Page 1: ... V05 00 PLL52 V01 50 CC1A7550 5en 07 07 2015 Building Technologies Division LMV52 Burner management system for forced draft burners LMV52 4 COx supervision and control User Manual The LMV5 and this User Manual are intended for OEMs which integrate the LMV5 in their products Note This documentation is only valid together with the LMV5 Basic Documentation P7550 ...

Page 2: ...equisite Connection diagram 6 4 5 Operating modes of COx supervision 6 4 5 1 COx Alarm operating mode 7 4 5 2 COx Control operating mode 8 4 6 Increasing the manipulated variable in case of COx signal O2ModOffset formerly O2Offset 9 4 7 Setting notes 10 4 7 1 Parameterizations 10 4 7 2 Setting fuel air ratio control 10 4 7 3 Setting the O2 trim controller 11 4 7 4 Setting the COx supervision 11 4 ...

Page 3: ...uid fuel A7550 3 LMV5 User Documentation Assembly of VKF41 C gas damper with ASK33 4 mounting kit to the SQM45 295A9 actuator A7550 4 LMV5 Setting Lists parameter and error list I7550 ACS450 Operating Instructions J7550 LMV5 Installation Guide J7550 1 LMV5 Data Sheet N7550 LMV5 Basic Documentation P7550 LMV5 Product Range Overview This document contains a complete overview Q7550 AZL52 LMV51 User M...

Page 4: ... follows depending on the hazard level Warning means that death severe personal injury or substantial damage to property can occur if adequate precautionary measures are not taken Note draws your attention to other information about the product and its handling contained in other pieces of documentation Only qualified personnel are allowed to commission and operate the unit Qualified personnel in ...

Page 5: ...sion V10 10 4 3 Functioning principle of COx supervision For the purpose of supervising the COx quantities during combustion the LMV52 4 offers the option of connecting a COx measurement transducer to the PLL52 The states of the COx measurement transducer switching output have the following meanings Contact open COx present Contact closed No COx present These are evaluated by the LMV52 4 when COx ...

Page 6: ...e set to standard or IgnPtWoutTC as all other start modes require a temperature sensor at input X87 of the PLL52 In terms of the CO functions we recommend using the standard start mode only Parameter Startmode standard Ign Load TC IgnPtWithTC IgnPtWoutTC If input X87 on the PLL52 is used to connect the COx sensor the PLL52 parameter SupAirTempSens must be set to Pt1000 COx control is only possible...

Page 7: ... takes place Parameters The waiting time referred to above for the COx Alarm is dependent on the Tau Low Fire time constant determined by O2 trim control and can be set using the NumberTauSuspend parameter as a multiple of Tau Low Fire Parameter NumberTauSuspend 0 140 Tau Low Fire Permissible time for a COx signal to reach in the operating phases 60 and 62 before the fault response takes place Par...

Page 8: ...y is then increased by means of the O2 trim control function if a COx signal is present during operation This is not a conventional COx control with a COx setpoint actual value and control difference but instead is an O2 trim control effect in relation to the COx value COx supervision takes place in the same way as in the COx Alarm operating mode Phases of COx control The COx controller is active ...

Page 9: ...value when O2 trim control is deactivated The parameter defines the increase of the O2 value in Example O2ModOffset 0 8 O2 actual value 1 4 In the event of COx signal the O2 value reached will be 2 2 Actual O2 value O 2ModOffset 1 4 2 2 O2 setpoint 7550d49e 1114 Figure 1 Increasing the manipulated variable in the case of a COx signal Parameter Gas O2ModOffset 0 5 Oil O2ModOffset 0 5 Fault response...

Page 10: ...el pressure temperature and pressure of the combustion air the set residual O2 content will lie above the O2 setpoints required by O2 trim control Example Figure 2 Setting fuel air ratio control Parameterized load proportional to the fuel rate The burner load parameterized at the curvepoints must be proportional to the actual burner load To make the correct setting determine the burner load with t...

Page 11: ...pter Setting notes Setting fuel air ratio control All O2 setpoints must be adjusted under the same environmental conditions It is important to adjust the O2 setpoints at the same ambient temperatures If later individual setpoints are changed all setpoints of the curvepoints must be readjusted since environmental conditions will probably be different from those at the time the initial settings were...

Page 12: ...2 trim controller is held at the last value LockTStart Locking time following startup until the O2 trim controller is initialized or released The locking time is necessary in order to ensure that the actual O2 value is measured The O2 trim controller is still deactivated or locked InitContr The O2 trim controller is initialized The O2 trim controller is locked LockTLoad The O2 trim controller is l...

Page 13: ...e EMC If fault occurs constantly Replace the defective O2 module B7 02 O2M No valid COx signal from PLL52 CRC fault during RAM test If fault occurs sporadically Improve EMC If fault occurs constantly Replace the defective O2 module B7 04 O2M No valid COx signal from PLL52 Fault during key value check If fault occurs sporadically Improve EMC If fault occurs constantly Replace the defective O2 modul...

Page 14: ...parison of O2 signal If fault occurs sporadically Improve EMC If fault occurs constantly Replace the defective O2 module B7 1B O2M No valid COx signal from PLL52 Fault ADC test voltages If fault occurs sporadically Improve EMC If fault occurs constantly Replace the defective O2 module B7 20 O2M No valid COx signal from PLL52 Temperature of QGO measuring cell too low Check mains power supply on O2 ...

Page 15: ... Reset the unit Attention If fault occurred during parameterization Check the parameters changed last If fault cannot be rectified by the reset Restore parameters from AZL5 Otherwise replace the O2 module B7 33 O2M No valid COx signal from PLL52 Page disrupted Reset the unit Attention If fault occurred during parameterization Check the parameters changed last If fault cannot be rectified by the re...

Page 16: ...eck the parameters changed last If fault cannot be rectified by the reset Restore parameters from AZL5 Otherwise replace the O2 module B7 3F O2M No valid COx signal from PLL52 Internal plausibility fault This type of fault covers possible errors that cannot practically occur If fault occurs sporadically Improve EMC If fault occurs constantly Replace the defective O2 module B7 41 LMV5 No valid COx ...

Page 17: ... LMV52 4 software version V10 20 COx control is available in conjunction with the PLL52 software version V01 40 and above as the PLL52 requires a temperature range for the supply air temperature sensor of 400 C Siemens AG Building Technologies Division Berliner Ring 23 D 76437 Rastatt Tel 49 7222 598 279 Fax 49 7222 598 269 www siemens com 2015 Siemens AG Building Technologies Division Subject to ...

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