Omron Sysmac NX-TBX01, User Manual

Page: 71 / 172

4 - 11
4 Installation and Wiring
NX-series System Units User’s Manual (W523)
4-
2 W
irin
g
t
h
e Po
wer Su
pply
to t
h
e C
P
U
Unit
4
4-
2-3 Pow
er Supply-
related U
nit
s and Wiring Methods
Precautions for Correct Use
Always use separate power supplies for the Unit power supply and the I/O power supply. If
you supply power from the same power supply, noise may cause malfunctions.
Additional Information
Refer to the hardware user’s manual for the CPU Unit to which Units are connected for infor-
mation on the designing of the power supply for the CPU Rack.
The CPU Unit supplies the NX Unit power to the NX Units in the CPU Rack.
There are the following types of NX-series power supply-related Units other than CPU Unit.
Refer to NX-series catalogs or OMRON websites, or ask your OMRON representative for information
on the most recent lineup of NX Units.
4-2-3 Power Supply-related Units and Wiring Methods
Unit name Function
Additional NX Unit
Power Supply Unit This NX Unit provides NX Unit power supply.
This NX Unit is used when the total power consumption of the NX Units in the CPU
Rack exceeds the NX Unit power supply capacity of the CPU Unit.
The I/O power supply for the Additional NX Unit Power Supply Unit is connected to the
NX Unit on the left through the NX bus connector.
Unit power
supply
Internal power
supply circuit
Unit power
supply
terminals
I/O power
supply
Internal power
supply circuit
The total power consumption
from the NX Unit power supply
is within the NX Unit power
supply capacity.
The total power consumption
from the NX Unit power supply
is within the NX Unit power
supply capacity.
NX Unit
NX Unit
power
supply
Additional NX Unit Power Supply Unit
NX Unit power supply
Separated by Additional NX Unit
Power Supply Unit Additional I/O
Power Supply Unit
NX-series
NX1P2 CPU Unit