When a fault occurs in the inverter, the protective function activates, and the PU display automatically changes to one of
the fault or alarm indications listed on page 45.
If the fault does not correspond to any of the following errors or if you have any other problem, please contact your sales
Retention of alarm output signal........When the magnetic contactor (MC) provided on the input side of the inverter is
Alarm display.....................................When the protective function is activated, the operation panel display
Resetting method ..............................When a protective function of the inverter is activated, the inverter output is kept
When the protective functions were activated, take an appropriate corrective action, then reset the inverter, and resume
the operation. Not doing so may lead to an inverter fault and damage.
Inverter fault or alarm indications are roughly divided as below:
A message regarding operational fault and setting fault by the operation panel (FR-DU08, FR-LU08) and parameter unit
(FR-PU07) is displayed. The inverter does not shut off output.
The inverter does not shut off output even when a warning is displayed. However, failure to take appropriate measures
will lead to a fault.
The inverter does not shut off output.You can also output an alarm signal (LF) by making parameter setting.
When the protective function is activated, the inverter output is shut off and a fault signal (ALM) is output.
A message regarding the operational status of the inverter is displayed. The inverter does not trip.
For the details of fault displays and other malfunctions, also refer to the FR-F800 Instruction Manual.
Past eight faults can be displayed using the setting dial. (Refer to page 28.)
Upon delivery the FR-F800-E inverter models are not equipped with the RS-485 terminal block.
opened at the activation of the protective function, the inverter's control power will
be lost and the alarm output will not be held.
automatically switches to the fault or alarm indication.
stopped. Unless reset, the inverter cannot restart. (Refer to page 45.)