Connection examples are shown below.
With signal ground reference terminal
G R - +
1
B+
A-
AGND
Shield
J1
J2
4
B+
A-
AGND
Shield
J1
J2
3
B+
A-
AGND
Shield
J1
J2
2
Without signal ground reference terminal
G - +
1
100 ohm
B+
A-
AGND
Shield
J1
J2
4
B+
A-
AGND
Shield
J1
J2
3
B+
A-
AGND
Shield
J1
J2
2
Automation controller. Termination ON
1)
1
Drive. J1: Termination OFF; J2: Modbus mode
2)
2
Drive. J1: Termination OFF; J2: Modbus mode
2)
3
Drive at the end of the communication line. J1: Termination ON
1)
; J2: Modbus mode
2)
4
1)
The device at both ends on the fieldbus must have termination set to ON.
2)
Some types only, refer to Communication mode jumper J2 (page 78).
76 Electrical installation