Siemens LMV51 Series Basic Documentation page 248

Error Diagnostic Device
code code
C5 04 ABE
C5 08 SA
C5 10 VSD module Version Conflict
C5 20 O2
D1 # VSD module Fault Feedback VSD Module
D1 01 VSD module Fault Feedback VSD Module
D1 02 VSD module Fault Feedback VSD Module
D1 03 VSD module Fault Feedback VSD Module
D3 # O2
01
D3 O2
02
D3 O2
03
D3 O2
E1 --- VSD module Fault Feedback VSD Module
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Siemens Building Technologies Basic Documentation LMV5...
HVAC Products 16 Addendum 1: List of fault status messages of LMV5... system
Display
Version Conflict Software of the AZL5... too old
Version Conflict Software of 1 or several actuators too old Replace actuator
Software of VSD module too old
Version Conflict Software of O2 module too old
Basic unit has detected a wrong state of
the VSD module. Corresponds to the "8x"-
faults with the other CAN users
CRC error
Key error main loop counter
No feedback for max. number
Fault Feedback O2 Module Basic unit has detected a wrong stage of
the O2 module
Fault Feedback O2 Module CRC error
Fault Feedback O2 Module Key error main loop counter
Fault Feedback O2 Module No feedback for max. number
Basic unit has detected a ROM-CRC fault
in the VSD module when checking its
feedback signal
Meaning for the LMV5x system Troubleshooting
Replace AZL5... or update its software
Replace basic unit
Replace O2 module
If fault occurs sporadically: Improve EMC.
If fault occurs constantly: Replace defective module
Check CAN cabling and terminators as specified
If fault occurs sporadically: Improve EMC
If fault occurs constantly: Replace defective module
If fault occurs sporadically: Improve EMC
If fault occurs constantly: Replace defective module
CC1P7550en
13.08.2004