Omron SYSMAC CS1D-PD Series Operation Manual page 655

CJ1W-CIF11 RS-422A Converter
Note Press the cover gently while removing it to prevent it from popping out suddenly.
2. Using a fine pair of tweezers or other tool with a fine point, change the settings of the DIP switch pins to
match the desired communications conditions.
3. Be sure to remount the cover after finishing the DIP switch settings.
All the pins are factory-set to OFF.
Wiring the RS-422A/485 Terminal Block
Recommended RS-422A/485 Cable
The following cable and wiring methods are recommended to help ensure transmission quality.
Note When using the CJ1W-CIF11, connect all the GR terminals on the PLCs together and ground them at
one point to 100 Ω or less.
• Use either two-wire or four-wire shielded cable.
Recommended cable: CO-HC-ESV-3P×7/0.2 (Hirakawa Hewtech)
• Connect the shield wire on the communications cable to the FG terminal on the RS-422A/485 terminal
block on the Converter, and ground the ground terminal on the Power Supply Unit of the CPU or Expansion
Rack to 100 Ω max.
Wiring Procedure
1. Taking care not to damage the shield, strip between 30 and 80 mm of sheath off the end of the cable.
30 to 80 mm
2. Carefully twist the shield mesh together to form a single wire, and carefully cut off the material surrounding
the signal wires and any unnecessary signal wires.
O
1
N
2
3
4
5
O
6
N
Appendix G
615