Wiring The Power Supply To The Cpu Unit; Power Supply Types; Supplying Each Power Supply And Wiring - Omron Sysmac NX-PD1000 User Manual

4-2 Wiring the Power Supply to the CPU
Unit
This section describes the methods of power supplying and wiring with NX Unit in a CPU Rack when
connecting NX Unit with NX-series NX1P2 CPU Unit.
4-2-1

Power Supply Types

There are the following two types of power supplies that supply power to the CPU Rack of the NX1P2
CPU Units.
I/O power supply is also required to drive the built-in I/O output circuit. However, only the supply to the
NX Unit is described in this section.
For the I/O power supply to the built-in I/O, refer to the hardware user's manual for the CPU Unit to
which NX Units are connected.
Power supply
name
Unit power sup-
ply
I/O power sup-
ply
4-2-2

Supplying Each Power Supply and Wiring

The supply method for each power supply to the NX Units is as follows.
Power supply
name
NX Unit power
supply
NX-series System Units User's Manual (W523)
This is the power supply for generating the internal power supply required for the CPU Rack to
operate.
This power supply is connected to the Unit power supply terminals on the CPU Unit.
From the Unit power supply, the internal power supply circuit in the CPU Unit generates the
internal circuit power supply, Option Board power supply and NX Unit power supply.
The internal circuits of the NX Unit operates on the NX Unit power supply.
The NX Unit power supply is supplied to the NX Units in the CPU Rack through the NX bus
connectors.
This power supply is used for driving the I/O circuits of the NX Units and for the connected
external devices.
There are the following two I/O power supply methods. Either supply method used depends on
each model of NX Unit.
• Supply from the NX bus
• Supply from external source
Refer to 4-2-2 Supplying Each Power Supply and Wiring on page 4-9 for the details on the
power supply methods.
This power is supplied to the NX Units through the NX bus connectors by connecting a Unit
power supply to the Unit power supply terminals on the CPU Unit or Additional NX Unit Power
Supply Units.
4 Installation and Wiring
Description
Description
4
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