4 Designing the Power Supply System
4 - 4
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
The NX-series NX1P2 CPU Unit supplies the NX Unit power to the NX Units on the CPU Rack. The
Units that are related to power supply for the NX-series CPU Units are listed in the following table.
For the specifications of NX-series power supply-related Units, refer to the NX-series System Units
User’s Manual (Cat. No. W523). For information on the most recent lineup of NX Series power sup-
ply-related Units, refer to NX-series catalogs or OMRON websites, or ask your OMRON representative.
The feature and purpose of each Unit in the NX Unit configuration with an NX-series NX1P2 CPU Unit
are given below.
4-1-2 NX-series Power Supply-related Units
Unit name Function
Additional
NX Unit
Power Sup-
ply Unit
This NX Unit provides NX Unit power supply.
This NX Unit is used when the total power consumption of the NX Units on 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 terminals
End
Cover
NX-series NX1P2
CPU Unit
Unit power supply terminals
Internal
circuits
Internal
circuits
Internal
circuits
Internal
circuits
Internal
circuits
Internal
power
supply
circuit
Internal
circuits
NX Unit power supply
NX Unit NX Unit NX Unit
I/O power supply
terminals
I/O power supply
(24 VDC, etc.)
I/O power
supply
Additional I/O
Power Supply
Unit
The total power consumption from
the NX Unit power supply is within
the NX Unit power supply capacity
of the CPU Unit.
The total power consump-
tion from the NX Unit power
supply is within the NX Unit
power supply capacity.
Additional NX Unit
Power Supply Unit
Unit power supply
(24 VDC)
NX Unit power supply
Internal
power
supply
circuit
Separated by the Additional
NX Unit Power Supply Unit
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