Siemens LMV51 Series Basic Documentation page 211

Error Diagnostic Device
code code
16 22 BU
16 23 BU
16 40 BU
17 --- BU
17 3F BU
17 01 BU
17 02 BU
17 03 BU
18 --- BU
19 # 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 With a switch instruction, none of the de-
fined cases was satisfied
Internal Fault Basic Unit With the switch instruction, no defined ratio
control phase has been identified
Internal Fault Basic Unit Unplausible target positions
Internal Fault Basic Unit (Internal) communication error of ELV
Internal Fault Basic Unit Detection of different data when making
the data comparison
Internal Fault Basic Unit Timeout with program synchronization
prior to data transmission
Internal Fault Basic Unit Timeout with data transmission
Internal Fault Basic Unit CRC fault during data transmission
Invalid Curve Data Invalid curve data
Internal Fault Actuator Basic unit (ratio control system) has de-
tected a fault when comparing potentiome-
ter channels A and B. Diagnostic code
shows on which actuator the fault oc-
curred. See diagnostic code
Meaning for the LMV5x system Troubleshooting
*1)
*1)
*1)
*1)
Checking the curve data for invalid entries:
Valid load range: 0.0 % - 100.0 %
Valid positioning range: 0.0° - 90.0°
Valid speed range: 0.0 % - 100 %
In the case of a deviation from the valid range when com-
missioning the unit: Readjustment to the valid value range.
If fault occurs after the unit has previously worked correctly:
Replace defective basic unit
Check CAN cabling.
If fault occurs sporadically: Improve EMC.
If fault occurs constantly: Replace actuator (see diagnostic
code)
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CC1P7550en
13.08.2004