211/301
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
16 22 BU Internal Fault Basic Unit With a switch instruction, none of the de-
fined cases was satisfied
*1)
16 23 BU Internal Fault Basic Unit With the switch instruction, no defined ratio
control phase has been identified
*1)
16 40 BU Internal Fault Basic Unit Unplausible target positions *1)
17 --- BU Internal Fault Basic Unit (Internal) communication error of ELV *1)
17 3F BU Internal Fault Basic Unit Detection of different data when making
the data comparison
17 01 BU Internal Fault Basic Unit Timeout with program synchronization
prior to data transmission
17
02 BU Internal Fault Basic Unit Timeout with data transmission
17
03 BU Internal Fault Basic Unit CRC fault during data transmission
18 --- BU Invalid Curve Data Invalid curve data 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
19 # SA 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
Check CAN cabling.
If fault occurs sporadically: Improve EMC.
If fault occurs constantly: Replace actuator (see diagnostic
code)
To Next Page
Loading...
