Siemens LMV51 Series - Configuring the VSD

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Siemens Building Technologies Basic Documentation LMV5... CC1P7550en
HVAC Products 16 Addendum 1: List of fault status messages of LMV5... system 13.08.2004
Error
code
Diagnostic
code
Device Display Meaning for the LMV5x system Troubleshooting
A9 1B VSD module Internal Fault VSD Module Fault when copying a parameter page Reset the unit.
! Caution ! If fault occurred during parameterization: Check
the parameters changed last.
If fault cannot be rectified by the reset: Restore AZL… pa-
rameters.
Otherwise, replace defective basic unit
A9 1E VSD module Internal Fault VSD Module External plausibility fault. This type of fault
covers possible faults occurring due to in-
valid presettings in the drive commands.
In response, the presettings will be ig-
nored
Check the special positions for valid value range (0-100 %)
A9 1F VSD module Internal Fault VSD Module Internal plausibility fault. This type of fault
detects faults that cannot practically oc-
cur...
*1)
AB # O2M Fault O2 Module The O2 module has detected own fault
and reported it to the basic unit
AB 01 O2M Internal Fault O2 Module CRC fault during ROM test *2)
AB 02 O2M Internal Fault O2 Module CRC fault during RAM test *2)
AB 04 O2M Internal Fault O2 Module Fault during key value check *2)
AB 05 O2M Internal Fault O2 Module Error code for time block overflow *2)
AB 07 O2M Internal Fault O2 Module Sync fault or CRC fault *2)
AB 08 O2M Internal Fault O2 Module Error code for main loop counter *2)
AB 09 O2M Internal Fault O2 Module Fault during stack test *2)
AB 0A O2M Internal Fault O2 Module Feedback values invalid *2)
AB 10 O2M Unplaus Value Nernst Voltage
O2 Module
Nernst voltage outside the valid range Check the connection (correct polarity, short-circuit)
AB 12 O2M Unplaus Value Thermocouple
O2 Module
Thermocouple voltage outside the valid
range
Check connections (polarity, short-circuit, open-circuit).
Check power supply to the O2 module.
Check fuse F2 on the O2 module.
Check heating control on the QGO.