MITSUBISHI ELECTRIC 700 Series - Manual (Page 34)

29
Inverter Status Monitoring, Special Registers
for Control
1
P
L
C
FU
N
C
TI
O
N
(4) Alarm definition batch clear (D9146)
Writing H9696 to D9146 batch-clears the alarm definitions.
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 alarm definitions are not cleared.
<Alarm definition batch clear program example>
The following program batch-clears the alarm history.
Alarm definition batch clear request
Normal write
Abnormal write
Turns on alarm definition
batch clear request pulse.
Check whether alarm definition
batch clear signal turned on to
judge whether write was
performed normally or not.
Stores H9696 (batch clear code)
to D9146 and turns on alarm
definition batch clear command.
(Until completion signal turns on)