Omron NX Series Hardware User Manual

*1. Wire colors have been changed according to revisions in the JIS standards for photoelectric
and proxim
ity sensors. The colors in parentheses are the wire colors prior to the revisions.
End
Cover
Not enough I/O
power supply
terminals
I/O power supply is not
separated at the I/O
Power Supply Connection
Units.
NX Unit NX UnitAdditional
I/O Power
Supply
Unit
I/O
Power
Supply
Connec-
tion Unit
I/O
Power
Supply
Connec-
tion Unit
NX-series
NX502 CPU Unit
Unit power supply terminals
Internal
power
supply
circuit
Internal circuits
NX Unit power supply
NX bus connector
Unit power supply
(24 VDC)
I/O power supply terminals
A1
A8
B1
B8
A1
A8
B1
B8
A1
A8
B1
B8
IOV
IOV
IOV
IOV
IOV
IOV
IOV
IOV
IOV
IOV
IOV
IOV
IOV
IOV
IOV
IOV
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
IOG
1
9
7
5
3
13
11
15
0
8
6
4
2
12
10
14
Example of NPN type
I/O Power Supply
Connection Unit
(IOV terminals: 16)
NX-PC0020
I/O Power Supply
Connection Unit
(IOG terminals: 16)
NX-PC0010
DC Input Unit
(NPN type)
NX-ID5342
Two-wire sensor*1
(limit switches, etc.)
Brown (White)
Blue (Black)
Three-wire sensor
with NPN output*1
(photoelectric
sensor, proximity
sensor, etc.)
Black (White)
Brown (Red)
Blue (Black)
I/O power supply
(24 VDC, etc.)
I/O power supply
4-1-3
X Bus Unit Power Supply
The X Bus Unit power is supplied directly from the Unit power supplied to the CPU Unit. Therefore,
external power supply is not required.
A total of 50 W of DC power can be supplied.
4 Designing the Power Supply System
4-9
NX-series NX502 CPU Unit Hardware User's Manual (W629)
4-1 Power Supply System
4
4-1-3 X Bus Unit Power Supply

Omron NX Series Specifications

General

Brand	Omron
Model	NX Series
Category	Controller
Language	English