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47
Backup Power Supply Wiring (Optical Ring Systems Only)
Section 2-4
e. Use a backup power supply with double or reinforced insulation.
3. Use the correct power supply voltage, as given above.
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-
voltage 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
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 sup-
ply.
• Check the wiring configuration carefully before turning ON the power.
• If the connectors on boards in adjacent slots come into contact with each
other, mount one of the boards in a different slot.
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 communica-
tions connector for Wired Controller Link Support Boards. Refer to
necting Cables to Communications Connectors
for details on preparing the
power supply wires and connecting them to the connector, and mounting the
cable connectors.
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.
24 VDC
Backup
power
supply
+
−
+
−
Summary of Contents for SYSMAC 3G8F7-CLK12-EV1
Page 2: ......
Page 4: ...iv ...
Page 20: ...xx Conformance to EC Directives 6 ...
Page 48: ...28 Applications Precautions Section 1 4 Example CX Programmer Response Timeout Setting ...
Page 68: ...48 Backup Power Supply Wiring Optical Ring Systems Only Section 2 4 ...
Page 74: ...54 Using the C Library Section 3 2 ...
Page 110: ...90 Changing the Data Link Tables with Active Data Links Section 5 5 ...
Page 187: ......