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■ Cable connection
Host Computer
1.Transmit positive line (TXA)
2.Transmit negative line (TXB)
3.Receive positive line (RXA)
4.Receive negative line (RXB)
5.Signal line ground (SＧ)
6.Shield ground (FG)
Leave a space more than 5cm on left
and bottom side of option unit for
connecting the communication cable.
Common serial option
connector
SW
More than 5cm
INVERTER 1
ＲＳ４８５
ＯＰＴＩＯＮ ＵＮＩＴ
Example:VF-A7
VF-A7
１ ２ ３ ４ ５ ６
１ ２ ３ ４ ５ ６
R
R
T
T
S
S
X
X
X
X
G
H
A
B
A
B
I
E
L
D
INVERTER 2
More than 5cm
Example:VF-S7
- - - -
7 -
E6580718
Another
RS-485
Option Unit
1.RXA
2.RXB
3.TXA
4.TXB
5.SG
6.SHIELD
Please fix a cable.
VF-S7
Common serial option
connector
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