Data Writing Method By Controlling Write Command (From Off To On) - Mitsubishi Electric A800 Programming Manual

Special registers to monitor and control inverter status
1.9.3
Data writing method by controlling write
command (from OFF to ON)
Writing of an operation mode and setting frequency to the inverter, a batch clear of fault records, and all parameter clear can
be executed.
Device
number
SD1143 Writing the operation mode setting
SD1144 Writing the setting frequency (RAM)
Writing the setting frequency
SD1145
(EEPROM)
SD1146 Batch clearing of fault records
SD1147 All parameter clear
The data above is written at the point when write completion turns ON after the write command turns from OFF to ON.
(Written at clear completion of SD1146 executed for fault record batch clear and SD1147 for all parameter clear.)
To write again, the write command must be turned OFF and then ON again.
Time charts of a data write
1) In user sequence, user
data is stored into write
data area (SD114n).
Y2n(n=3 to 7)
Write command
X2n(n=3 to 7)
Write completion
SD114n(n=3 to 7)
Write data
User data
38
PLC Function
Name
Y23
Y24
Y25
Y26
Y27
2) In user sequence, write
command is turned ON.
3) Turns ON when inverter CPU completes data
write to inverter.
Faults history clear and parameter
clear turn ON at completion of clear.
"0" written to SD1150 indicates normal completion.
Any value other than 0 indicates abnormal completion.
Write Write
instruction completion
X23
X24
X25
X26
X27
4) After confirmation of write
completion, write command
is turned OFF.
5) Inverter CPU confirms that
write command is OFF and
turns OFF write completion.
Data access condition
Pr.79=0, 2
PU operation mode or NET operation
mode
Always accessible
According to the setting of Pr.77