Omron NX1P2 series, Hardware User Manual

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*1. Wire colors have been changed according to revisions in the JIS standards for photoelictric
and proximity 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 Unit
Additional
I/O Power
Supply
Unit I/O Power
Supply
Connec-
tion Unit I/O Power
Supply
Connec-
tion Unit
NX-series NX1P2
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
(24 VDC, etc.)
I/O power supply
terminals
A1
A8
B1
B8
A1
A8
B1
B8
A1
A8
B1
B8
Brown (White)
Blue (Black)
Black (White)
Brown (Red)
Blue (Black)
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
DC Input Unit
(NPN type)
NX-ID5342
I/O Power Supply
Connection Unit
(IOV terminals: 16)
NX-PC0020
I/O Power Supply
Connection Unit
(IOG terminals: 16)
NX-PC0010
Two-wire sensor *1
(limit switches, etc.)
Three-wire sensor with
NPN output
Three-wire sensor *1
(photoelectric sensor,
proximity sensor, etc.)
Example of NPN type
○
○ ○ ○ ○ ○
I/O power supply
4 Designing the Power Supply System
4-9
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
4-1 Power Supply System
4
4-1-2
NX-series Power Supply-related Units