Mitsubishi Electric A800 Programming Manual page 42

800 series, plc function
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Batch clear of fault records (SD1146)
When H9696 is written to SD1146, fault records are cleared in a batch.
When clearing is completed, the write completion signal (X26) turns ON at the same time as SD1150 is set to "0".
Executing writing with any value that is outside the specified range or writing while the inverter is running causes the write
completion signal (X26) to turn ON at the same time as setting HFFFF in SD1150, resulting in error completion. In the case of
error completion, the fault records are not cleared.
<Program example of batch clearing of fault records>
The following description is of the program that batch clears fault records.
Faults history batch clear request
SD1150
SD1150
Parameter clear (SD1147)
When H9696 or H9966 is written to SD1147, all parameters are cleared. When H5A5A or H55AA is written to SD1147,
parameters except the communication parameters are cleared. (Refer to the Instruction Manual of the inverter.)
Setting
Device No.
value
H9696
H9966
SD1147
H5A5A
H55AA
When clearing is complete, the write completion signal (X27) turns ON at the same time as SD1150 is set to "0".
Executing writing with any value that is outside the specified range or writing while the inverter is running causes the write
completion signal (X27) to turn ON at the same time as setting HFFFF in SD1150, resulting in error completion. In the case of
an error completion, the parameters are not cleared.
NOTE
• Identify the terminal function parameters and communication parameters in the parameter list. (Refer to the Instruction
Manual of the inverter.)
POINT
POINT
• This can be set in the PU operation mode and NET operation mode. Refer to the Instruction Manual of the inverter.
Special registers to monitor and control inverter status
Abnormal write
Communication
Other
parameters
parameters
Turns ON faults history
batch clear request pulse.
Check whether faults history
batch clear signal is turned ON to
Normal write
judge whether write was
performed normally or not.
Stores H9696 (batch clear code)
to SD1146 and turns ON faults
SD1146
history batch clear command.
(Until completion signal turns ON)
Details
Terminal functions are not cleared.
Terminal functions are cleared.
Terminal functions are not cleared.
Terminal functions are cleared.
: Clear, : Not clear
41
PLC Function
1

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