Siemens LMV51 Series Basic Documentation page 229

Error Diagnostic Device
code code
99 --- All
9A --- All
9B # All
9B 01 All
9B 02 All
A0 # SA
A0 See A1 See A1
A1 # SA
A1 01 SA
A1 02 SA
A1 04 SA
A1 05 SA
A1 07 SA
A1 08 SA
A1 09 SA
A1 0C SA
A1 0D SA
Siemens Building Technologies Basic Documentation LMV5...
HVAC Products 16 Addendum 1: List of fault status messages of LMV5... system
Display
Internal Fault Basic Unit CAN is in bus off
Internal Fault Basic Unit CAN warning level.
Fault probably occurred when connecting
or disconnecting a CAN bus user
Internal Fault Basic Unit CAN queue overrun
Internal Fault Basic Unit Overrun of RX queue
Internal Fault Basic Unit Overrun of TX queue
Auxiliary actuator 3 has detected a fault
and reported it to the basic unit.
Type of fault: See diagnostic code
See A1
Air actuator has detected own fault and
reported it to the basic unit.
Type of fault: See diagnostic code
Internal Fault Air Actuator CRC fault during ROM test
Internal Fault Air Actuator CRC fault during RAM test
Internal Fault Air Actuator Fault during key value check
Internal Fault Air Actuator Error code for time block overflow
Internal Fault Air Actuator Sync fault or CRC fault
Internal Fault Air Actuator Error code for main loop counter
Internal Fault Air Actuator Fault during stack test
Overtemperature Air Actuator Temperature warning and shutdown
Internal Fault Air Actuator Actuator turns in the wrong direction
Meaning for the LMV5x system
See A1
Troubleshooting
Check CAN cabling
*1)
Check CAN cabling
*1)
Check CAN cabling
*1)
Check CAN cabling and terminators as specified
If fault occurs sporadically: Improve EMC
If fault occurs constantly: Replace defective actuator
See A1
Check CAN cabling and terminators as specified
If fault occurs sporadically: Improve EMC
If fault occurs constantly: Replace defective actuator
Check housing temperature (max. 60 °C)
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CC1P7550en
13.08.2004