Omron NE1A-EDR01, Operation Manual

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11
Wiring Section 2-2
Note Ground correctly to avoid malfunctioning due to noise.
2-2-3 DeviceNet Wiring
Wiring Cables
Wire the DeviceNet communications cable as shown in the following diagram.
Stickers are placed on the communication connectors based on the color of
each communications wire. By matching the communications wire colors with
the connector sticker colors, you can check to see if wires are in the correct
locations. The colors of the wires are as follows:
IMPORTANT
• Turn OFF the power supply to the NE1A-series Controller, to all nodes on
the network, and to communications lines before starting any wiring oper-
ations.
• Tighten the DeviceNet connector to the appropriate torque (0.25 to
0.3 N·m).
• Separate the DeviceNet communications cables from high-voltage/current
lines.
ED Router
Independent ground: Correct
Ground with max.
resistance of
100-
Ω
Other devices
Shared ground: Incorrect
Other devices Other devices
ED Router ED Router
Color Description
Red V+
White Signal (CAN H)
- Drain
Blue Signal (CAN L)
Black V
−