Connecting The Backup Power Supply - Omron SYSMAC 3G8F7-CLK12-E Operation Manual

Backup Power Supply Wiring (Optical Ring Systems Only)

2-4-2 Connecting the Backup Power Supply

Observe the following precautions when connecting the backup power supply.
• Separate the backup power supply wires from other power lines and high-volt-
age lines to prevent noise.
• Attach the special crimp terminals to the power supply wires. (Use the same
crimp terminals as the wired system communications cables. Refer to 2-1-2
Communications Cable for details.)
• Do not reverse the power supply polarity.
• Tighten the power supply cable hold-down screws to 0.2 N
m.
• Do not pull on the power supply cable.
• Do not bend the power supply cable too sharply.
• Do not place any objects on top of the power supply cable.
• Verify that the connector is installed properly before using the power supply.
• Check the wiring configuration carefully before turning ON the power.
Connect the power supply cable to the cable connector and then secure it to the
Board, as shown in the following diagram. (The following diagram shows a
Board using H-PCF cables, but the diagram for GI cables is the same.) Be sure
that the power supply polarity is not reversed.
The connector for the backup power supply is the same as the communications
connector for Wired Controller Link Support Boards. Refer to 2-1-3 Connecting
Cables to Communications Connectors for details on preparing the power sup-
ply wires and connecting them to the connector, and mounting the cable connec-
tors.
Note It is difficult to connect or disconnect the backup power supply connector after
the Optical Fiber Cable's mounting bracket has been installed. Insert the con-
nector before installing the mounting bracket.
+ –
+
Backup
power
24 VDC
supply
–
Section 2-4
39