Mitsubishi Electric FR - F700 Programming Manual page 40

(4) Faults history batch clear (D9146)
Writing H9696 to D9146 batch-clears the faults history.
At completion of clear, the write completion signal (X26) turns on, and at the
same time, 0 is set to D9150. If any value outside the setting range is written or
write is performed during inverter operation, HFFFF is set to D9150 as soon as
the write completion signal (X26) turns on, resulting in abnormal completion.
If abnormal completion occurs, the faults history are not cleared.
<Faults history batch clear program example>
The following program batch-clears the alarm history.
Faults history batch clear request
Inverter status monitoring, special registers
Turns on faults history
batch clear request pulse.
Check whether faults history
batch clear signal turned on to
Normal write
judge whether write was
performed normally or not.
Abnormal write
Stores H9696 (batch clear code)
to D9146 and turns on faults
history batch clear command.
(Until completion signal turns on)
for control
1
33