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Inverter Parameter Read/Write Method
4.8.1
Reading the inverter parameters
When the inverter parameter read command is turned from off to on, the data of all the
target parameters (refer to pages 110, 111) are stored into the data registers and the
read completion is turned on.
As soon as the parameter read completion turns from off to on, the corresponding data
can be read.
Command
Parameter read command (RAM)
Parameter read completion (RAM)
Parameter read command (E
Parameter read completion (E
Inverter parameter data read timing chart
1) Read command is turned
on in user sequence.
Y28(Y2A)
Parameter read
command
X28(X2A)
Parameter read
completion
Inverter
parameter
D50 to D93
Parameter
read data
User sequence
processing
2) Inverter CPU stores inverter parameter
data into data registers D50-D93, and
turns on read completion.
CAUTION
Since the inverter parameters given on page 110 are all read (batch-read), start read
processing after setting all data to D50-D93. Read cannot be performed for one
parameter.
Device No.
Y28
X28
2
Y2A
PROM)
2
X2A
PROM)
3) In user sequence, ON of read completion
is confirmed and data are read from data
registers D50-D93 and processed.
130
4) After completion of read,
read command is turned off.
5) Inverter CPU confirms that read
command is off and turns off
read completion.
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