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Inverter Status Monitoring, Special Registers for
Control
4
PLC FUNCTION
(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.
(5) Parameter clear (D9147)
Writing H9696 or H9966 to D9147 clears all parameters. Writing H5A5A or
H55AA to D9147 clears the parameters other than the communication
parameters (pages 50 to 54).
At completion of clear, the write completion signal (X27) 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 (X27) turns on, resulting in abnormal completion. If
abnormal completion occurs, the parameters are not cleared.
Device No. Setting Description Details
D9147
H9696
All parameter clear
Terminal functions are not
cleared.
H9966
Terminal functions are
cleared.
H5A5A Parameters other than
communication parameters
are cleared.
Terminal functions are not
cleared.
H55AA
Terminal functions are
cleared.
REMARKS
Check the terminal function parameters and communication-related parameters in the
parameter list (page 50).
POINT
Setting is enabled in the PU operation mode and CC-Link operation mode.
(Refer to page 75.)
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)