Omron V640 User Manual page 45

■ Multi-connection port
The method for connecting to an Amplifier Unit is explained here.
Link Unit
To multi-connection port
• Connector
Pin No. Name
5 -
4 +
3 GR
2 -
1 +
To the RS-485 port
Function
No wiring is required. (Short with terminal 2 within the circuit)
No wiring is required. (Short with terminal 1 within the circuit)
Ground to 100 Ω or less.
Connect to the minus line of the Amplifier Unit.
Connect to the plus line of the Amplifier Unit.
Installation and Connections/Wiring
Amplifier Unit
SECTION 2
CIDRW System
41
User's Manual