Omron DEVICENET -, Operation Manual

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66
Wiring Methods Section 2-4
• XW4B-05C4-TF-D Straight Multi-drop Connector with Attachment Screws
• XW4G-05C4-TF-D Straight Multi-drop Clamp Connector with Attachment
Screws
In some cases, the Multi-drop Connector cannot be used because there is not
enough space and other Units or connectors get in the way. Refer to
Multi-
drop Connectors on page 51 for a list of compatible Units.
Note 1. Before connecting the communications cables, turn OFF the power sup-
plies to the PLC and all Slaves, as well as the communications power sup-
plies.
2. Use crimp terminals for wiring. Connecting bare twisted wires can cause
the cables to come OFF, break, or short circuit and result in incorrect op-
eration and possibly damage to the Units.
3. Use the proper crimping tool and crimping methods when attaching crimp
terminals. Consult the manufacturer of the tools and terminals you are us-
ing. Inappropriate tools or methods can result in broken wires.
4. Be extremely careful to wire all signal lines, power lines, and shielding wire
correctly.
5. Tighten all set screws firmly. Tighten signal lines, power lines, and shield-
ing wire to a torque of 0.5 to 0.6 N
⋅
m. Tighten connector screws to a torque
of 0.4 to 0.5 N
⋅
m.
6. Wire the signal lines, power lines, and shielding wire so that they do not
become disconnected during communications.
7. Do not pull on the communications cables. They may become disconnect-
ed or wires may break.
8. Allow a sufficient bending radius in cable turns so that communications ca-
bles are not bent too sharply. The Cables may become disconnected or
wires may break if the cables are bent too far.
9. Never place objects on top of the communications cables. They may break.
10. Double-check all wiring before turning ON the power supply.
2-4-2 Attaching Flat Cable Connectors
Flat Connector Plug Component Names
Cable identification label
(Flat cable: Black, blue, white, red)
Black