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6 TROUBLESHOOTING
When an alarm occurs in the inverter, the protective function is activated bringing the inverter to an alarm stop and the PU display
automatically changes to any of the following error (alarm) indications.
If your fault does not correspond to any of the following errors or if you have any other problem, please contact your sales
representative.
Retention of alarm output signal...... When the magnetic contactor (MC) provided on the input side of the inverter is opened at the
Alarm display ................................... When the protective function is activated, the operation panel display automatically switches to the
Resetting method ............................ When a protective function of the inverter is activated, the power output of the inverter is blocked
If protective functions were activated (i. e. the inverter switched off with an error message) follow the instructions for error correction
provided in the manual for the inverter. Especially in the case of short circuits or earth contacts in the inverter output and mains
overvoltages the cause of the fault must be determined prior to switching on again as a recurrence of such faults at short intervals
can lead to premature aging of components or even the complete breakdown of the device. After the cause of the fault has been
found and corrected the inverter can be reset and operations continue.
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activation of the protective function, the inverter's control power will be lost and the alarm output
will not be held.
above indication.
(motor is coasting). The inverter cannot start up again unless an automatic restart has been
configured or the inverter is reset. Please observe carefully the warnings contained below in the
configuration of an automatic restart or the execution of a reset.
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