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6 TROUBLESHOOTING
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 46.
If the fault does not correspond to any of the following errors or if you have any other problem, please contact your sales repre-
sentative.
Retention of alarm output signal .............When the magnetic contactor (MC) provided on the input side of the inverter is opened
O
Alarm display ...................................................When the protective function is activated, the operation panel display automatically
O
Resetting method ..........................................When a protective function of the inverter is activated, the inverter output is kept
O
O When any fault occurs, 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:
O Error message
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.
O Warning
The inverter does not shut off output even when a warning is displayed. However, failure to take appropriate measures will lead
to a fault.
O Alarm
The inverter does not shut off output.You can also output an alarm signal (LF) by making parameter setting.
O Fault
When the protective function is activated, the inverter output is shut off and a fault signal (ALM) is output.
O Other message
A message regarding the operational status of the inverter is displayed. The inverter does not trip.
NOTES
O For the details of fault displays and other malfunctions, also refer to the "FR-A800 Instruction Manual (Detailed)" and "FR-
A802-R2R Instruction Manual (Hardware)".
O Past eight faults can be displayed on the operation panel. (Faults history). (Refer to page 28.)
O Upon delivery the FR-A800-E-R2R inverter models are not equipped with the RS-485 terminal block.
at the activation of the protective function, the inverter's control power will be lost and
the alarm output will not be held.
switches to the fault or alarm indication.
stopped. Unless reset, the inverter cannot restart. (Refer to page 46.)
45
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