Control Units CU240S
Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD
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Troubleshooting
8
8.1
Faults and Alarms
Description
The inverter indicates unfavourable states as faults and alarms.
● Alarms
Alarms are not displayed via the LEDs on the Control Unit. Alarms require no
acknowledgement and cause no systems reaction. The alarm number is displayed on
STARTER or a higher-level control system.
● Faults
Faults indicate a severe unfavourable state. If a fault occurs, the inverter powers off and
the LED "SF" on the Control Unit is active.
The fault number is displayed on BOP, STARTER or a higher-level control system. You
cannot restart the inverter not until the fault is remedied. After remedy the fault requires
an acknowledgement.
Note
For detailed descriptions of the faults and alarms, refer to the Parameter Manual
Parameterizing faults and alarms
Faults
For fault handling, regard the following parameters:
● Stored in parameter r0947 under their code number, e. g. F0003 = 3
● Associated error value stored in parameter r0949 (0 = no error value)
● Time stamp of the fault stored in r0948 and can be read out
● Number of fault messages (P0952) is stored in r0947 and can be read out