Siemens LMV52 series - Electrical Connection of Ionization Probe and Flame Detector; Commissioning Notes

15/17
Building Technologies Division User Manual LMV5... CC1A7550.5en
List of error messages of LMV5 system 07.07.2015
Error
code
Diagnostic
code
Device Display Meaning for the LMV5 system Troubleshooting
B7 31 O2M
No valid COx signal from PLL52
CRC fault of a parameter page 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 32 O2M
No valid COx signal from PLL52
Page too long open 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 reset:
Restore parameters from AZL5.
Otherwise, replace the O2 module
B7 34 O2M
No valid COx signal from PLL52
Invalid access to parameters 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