Omron NX-EIC202 User Manual

5 Designing the Power Supply System
5 - 16
NX-series EtherNet/IP Coupler Unit User’s Manual (W536)
5-4 Selecting External Power Supplies
and Protective Devices
This section describes how to select the external power supplies and protective devices for the EtherNet/IP
Slave Terminal, i.e., the Unit power supply and the I/O power supplies.
This section describes how to select the Unit power supply for the EtherNet/IP Slave Terminal.
Use an SELV power supply that meets the following conditions for the Unit power supply.
• Has overcurrent protection.
• Has double or reinforced insulation between the input and output.
• Has an output voltage of 24 VDC (20.4 to 28.8 VDC).
Recommended Power Supplies: S8JX Series (manufactured by OMRON)
 Formula
This section describes how to calculate the required capacity of the Unit power supply for the Ether-
Net/IP Slave Terminal.
Use the following formula to calculate the required Unit power supply capacity for each block in the
EtherNet/IP Slave Terminal.
Required Unit power supply capacity of each block = (A + B)/C
5-4-1 Selecting the Unit Power Supply
Recommended Power Supplies
Calculating the Required Power Supply Capacity of the Unit Power
Supply
Required capacity of the Unit power supply
for the EtherNet/IP Slave Terminal
=
Total of required Unit power supply capacity
for each block
A NX Unit power consumption of the Unit that supplies the NX Unit power
B Total power consumption from the NX Unit power supply that is required by the NX Units that
are connected to the Unit that supplies NX Unit power
C NX Unit power supply efficiency of the Unit that supplies the NX Unit power

Omron NX-EIC202 Specifications

General

Brand	Omron
Model	NX-EIC202
Category	Controller
Language	English