Siemens LMV51 Series - Page 231

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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
A1 19 SA Internal Fault Air Actuator Invalid parameter access 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
A1 1B SA Internal Fault Air Actuator Fault during copying of 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
A1 1E SA Internal Fault Air Actuator 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 to see if value range is valid (0-
90°)
A1 1F SA Internal Fault Air Actuator Internal plausibility fault. This type of fault
covers possible faults that can occur due
to strong EMC impact
A2 # SA Gas actuator has detected own fault and
reported it to the basic unit.
Type of fault: See diagnostic code
Check CAN cabling and terminators as specified
If fault occurs sporadically: Improve EMC
If fault occurs constantly: Replace defective actuator
A2 See A1 See A1 See A1 See A1 See A1