Reset Method For The Protective Functions - Mitsubishi Electric FR-A820-00046 Instruction Manual

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Reset method for the protective functions

6.2
Reset method for the protective functions
Reset the inverter by performing any of the following operations. Note that the accumulated heat val-
ue of the electronic thermal relay function and the number of retries are cleared (erased) by resetting
the inverter.
The inverter recovers about 1 s after the reset is released.
● On the operation panel, press STOP/RESET key to reset the inverter.
(This may only be performed when a fault occurs. Refer to page 6-18 of the Instruction Manual
for faults.)
● Switch the power OFF once, then switch it ON again.
● Turn ON the reset signal (RES) for 0.1 s or more. (If the RES signal is kept ON, "Err" appears (flickers)
to indicate that the inverter is in a reset status.)
NOTE
OFF status of the start signal must be confirmed before resetting the inverter fault. Resetting an
inverter fault with the start signal ON restarts the motor suddenly.
6 - 2
ON
OFF
Inverter
RES
SD
Fig. 6-1:
Resetting the inverter by using the operation panel
Fig. 6-2:
Resetting the inverter by switching the power
supply off and on
Fig. 6-3:
Resetting the inverter by turning on the RES signal
Protective functions
I002451E
I001297E
I002452E

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