Troubleshooting
8.1 Faults and Alarms
Control Units CU240S
196 Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD
Alarms
For alarm handling, regard the following parameter:
● Stored in parameter r2110 under their code number and can be read out, e. g. A0503 =
503. The value 0 indicates, that no warning is applied. Via the index, you have access to
the two actual alarms and the last two historical alarms.
Display
Faults and alarms are displayed on the following components:
● BOP
The status display of the BOP indicates the occurring faults and alarms. If several
messages arise, the display scrolls constantly through all active faults.
● STARTER
The detail view in the alarms tab displays information, faults and alarms in the table. In
th.e field "messages" the fault or information/alarm text is displayed in plain text.
● A higher-level control system. For detailed information, refer the respective manual of the
control system.
General acknowledgement of faults
To reset the fault code, one of the following methods can be used:
● Power cycle the inverter.
(Switch OFF/ON the main supply voltage and the external 24 V supply for the Control
Unit.)
● Press the key FN on the BOP.
● Activate the default setting of DI 2.
● Set bit 7 in control word 1 (r0054).
Special acknowledgement of faults
The following faults messages can only be acknowledged by a power cycle:
● F00051 Parameter EEPROM fault
● F00052 Power stack fault
● F00061 Automatic Download, MMC is not fitted
● F00062 Automatic Download, MMC contents invalid
● F00063 Automatic Download. MMC contents incompatible
● F00064 Drive attempted to do an Automatic Download during startup
● F01601 System startup error
Note
The drive cannot resume operation until all active faults have been acknowledged.
Clearing F00395 is described in the section "Message F00395" of this manual.
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