Chapter 6 Communication Protocol SVF-MN Series Frequency Inverter Operation Manual
148
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3
）
For example 1: To change the frequency inverter’s main
frequency source to 9 through upper machine, and store that setting
value after power-off.
The upper machine sends the data to frequency inverter as follows;
Slave
addre
ss
Functi
on
code
Paramet
er
address
high
byte
Paramet
er
address
low byte
Dat
a
hig
h
byt
e
Dat
a
low
byt
e
CRC
Parit
y bit
high
byte
CRC
Parity
bit
high
byte
01 06 F0 00 00
09
49 CC
But the max allowed setting value of main frequency source P00 sets
8, and when sets9 is illegal data, and the frequency inverter return to
abnormal code 03. And the frequency inverter returns to the data to
upper machine as follows;
Slave
address
Function
code +80H
Abnormal
code
CRC Parity
bit high byte
CRC Parity
bit high byte
01 86
03
02
61
