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Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
243
Alarms, faults and system messages
9
The inverter has the following diagnostic types:
● LED
You can obtain an overview of the inverter state locally at the Control Unit LED.
● Alarms and faults
Alarms and faults have a unique number. The inverter displays the numbers on the
Operator Panel and via STARTER - or signals them to a higher-level control.
If the inverter no longer responds
Due to faulty parameter settings, e.g. by loading a defective file from the memory card, the
inverter can adopt the following condition:
● The motor is switched off.
● You cannot communicate with the inverter, either via the Operator Panel or other
interfaces.
In this event proceed as follows:
● Switch-off and switch-on the Control Unit power supply three times.
● If the inverter signals the fault F01018, carry out the corrective actions for this fault shown
in section List of faults (Page 256).
F01018 can only be acknowledged by switching the CU on and off again.