E65807
1
8
‑
‑
‑
‑
7 ‑
■
Cable connection
1.RXA
2.RXB
3.TXA
4.TXB
5.SG
6.SHIELD
Please fix a cable.
1.Transmit positive line (TXA)
2.Transmit negative line (TXB)
3.Receive positive line (RXA)
4.Receive negative line (RXB)
5.Signal line ground (S
G
)
6.Shield ground (FG)
Another
RS-485
Option Unit
Host Computer
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
SW
INVERTER 2
INVERTER 1
RS485
OPTION UNIT
More than 5cm
More than 5cm
Leave a space more than 5cm on left
and bottom side of option unit for
connecting the communication cable.
Example:VF-A7
Common serial option
connector
Example:VF-S7
VF-S7
Common serial option
connector
VF-A7