I/O Connectors - Omron NXR Series User Manual

3 Part Names and Functions
 Power Supply Connector (Input)
The connector for supplying the following power. Connect the power supply cable to an external
power supply.
• Unit/input power supply
• Output power supply
 Power Supply Connector (Output)
The connector for supplying Unit/input power and output power from the local node to another node
of the IO-Link Master Unit. Use this connector to supply power with through-wiring. Connect the
power supply cable between IO-Link Master Units.
 Specifications
The specifications are as follows:
a. Connector structure
Power supply connector (input): 7/8 inch connector (male)
Power supply connector (output): 7/8 inch connector (female)
b. Pin arrangement
Both the power supply connector (input) and power supply connector (output) have the follow-
ing pin arrangement.
Pin No. Signal name
1
2
3
4
*1. These signals are internally connected inside the Unit.
Precautions for Safe Use
The maximum power supply current is 9 A, which is the sum of the Unit/input power supply cur-
rent and the output power supply current. Do not use the Unit beyond the maximum power sup-
ply current. Otherwise, an excess current flows through the power supply cable, and it may
cause fire.
Precautions for Correct Use
Always use separate power supplies for the Unit/input power supply and the output power sup-
ply. If you supply power from the same power supply, load variations in output devices may
cause malfunctions.
3-4-3

I/O Connectors

The I/O connectors are used for connecting IO-Link devices or non-IO-Link external devices.
They are called "ports".
1 2
5
4 3
3-12
Description
OUT P+ Output power supply +
U/IN P+ Unit/input power supply +
U/IN P-
Unit/input power supply -
OUT P-
Output power supply -
*1
*1
NXR-series IO-Link Master Unit for EtherCAT User's Manual (W640)