![background image](http://html1.mh-extra.com/html/omron/nx-ecc201/nx-ecc201_user-manual_742778084.webp)
5 Designing the Power Supply System
5 - 2
NX-series EtherCAT Coupler Unit User’s Manual (W519)
5-1
Power Supply System and Design
Concepts
This section describes the power supply system for an EtherCAT Slave Terminal and the design con-
cepts.
An example of a power supply system configuration diagram for an EtherCAT Slave Terminal is shown
below.
There are the following two types of power supplies that supply power to the EtherCAT Slave Terminal.
5-1-1
Power Supply System and Types of Power Supplies
Power Supply System Configuration Diagram
Power Supply Types
Power supply
type
Description
Unit power sup-
ply
This power supply is required to generate the NX Unit power, which is necessary for the
EtherCAT Slave Terminal to operate.
This power supply is connected to the Unit power supply terminals on the EtherCAT Coupler
Unit.
The internal power supply circuit in the EtherCAT Coupler Unit generates the NX Unit power
supply from the Unit power supply.
The internal circuits of the EtherCAT Coupler Unit and of the NX Units operate on the NX Unit
power supply.
The NX Unit power is supplied to the NX Units in the Slave Terminal through the NX bus con-
nectors.
NX bus
End Cover
NX Units
NX bus connector
NX Unit power supply
EtherCAT Coupler Unit
Unit power supply terminals
I/O power supply terminals
Terminal blocks
Input terminals or I/O power
supply terminals (example for
Digital Input Unit)
To external
devices
Internal
circuits
Internal
circuits
Internal
circuits
Internal
circuits
Internal
circuits
Internal
circuits
Unit power
supply
(24 VDC)
I/O power
supply
(e.g., 24 VDC)
Internal
power
supply
circuit
Summary of Contents for NX-ECC201
Page 38: ...Sections in this Manual 36 NX series EtherCAT Coupler Unit User s Manual W519...
Page 46: ...1 EtherCAT Networks 1 8 NX series EtherCAT Coupler Unit User s Manual W519...
Page 56: ...2 Features and System Configuration 2 10 NX series EtherCAT Coupler Unit User s Manual W519...
Page 82: ...4 Part Names and Functions 4 14 NX series EtherCAT Coupler Unit User s Manual W519...
Page 100: ...5 Designing the Power Supply System 5 18 NX series EtherCAT Coupler Unit User s Manual W519...
Page 214: ...9 Setting Up Slave Terminals 9 44 NX series EtherCAT Coupler Unit User s Manual W519...
Page 254: ...11 EtherCAT Coupler Unit Functions 11 30 NX series EtherCAT Coupler Unit User s Manual W519...
Page 278: ...12 Communications Performance 12 24 NX series EtherCAT Coupler Unit User s Manual W519...
Page 340: ...14 Maintenance and Inspection 14 8 NX series EtherCAT Coupler Unit User s Manual W519...
Page 400: ...Appendices A 60 NX series EtherCAT Coupler Unit User s Manual W519...
Page 401: ...Index 1 NX series EtherCAT Coupler Unit User s Manual W519 I Index...
Page 405: ......