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Installation and Wiring
This section describes how to install the NX Units, the types of power supplies used in
the CPU Rack or Slave Terminal, their wiring methods, and how to wire the NX Units.
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Installing NX Units.......................................................................................... 4-2
4-1-1 Installing NX Units ........................................................................................... 4-2
4-1-2 Attaching Markers ........................................................................................... 4-5
4-1-3 Removing NX Units ......................................................................................... 4-6
4-1-4 Installation Orientation..................................................................................... 4-7
4-2 Wiring the Power Supply to the CPU Unit.................................................... 4-9
4-2-1 Power Supply Types........................................................................................ 4-9
4-2-2 Supplying Each Power Supply and Wiring ...................................................... 4-9
4-2-3 Power Supply-related Units and Wiring Methods.......................................... 4-12
4-3 Wiring the Power Supply to the Slave Terminal ........................................ 4-15
4-3-1 Power Supply Types...................................................................................... 4-15
4-3-2 Supplying Each Power Supply and Wiring .................................................... 4-15
4-3-3 Power Supply-related Units and Wiring Methods.......................................... 4-17
4-4 Wiring the Power Supply to the Communication Control Unit ................ 4-20
4-4-1 Power Supply Types...................................................................................... 4-20
4-4-2 Supplying Each Power Supply and Wiring .................................................... 4-20
4-4-3 Power Supply-related Units and Wiring Methods.......................................... 4-22
4-5 Wiring of Grounding .................................................................................... 4-25
4-6 Wiring the Additional Power Supply Units ................................................ 4-27
4-6-1 Wiring the Additional NX Unit Power Supply Unit ......................................... 4-28
4-6-2 Wiring the Additional I/O Power Supply Unit ................................................. 4-32
4-6-3 Protective Devices......................................................................................... 4-38
4-7 Wiring the I/O Power Supply Connection Unit .......................................... 4-40
4-8 Wiring the Shield Connection Unit ............................................................. 4-44
4-9 Wiring the Terminals .................................................................................... 4-45
4-9-1 Wiring to the Screwless Clamping Terminal Blocks ...................................... 4-45
4-9-2 Preventing Incorrect Attachment of Terminal Blocks..................................... 4-55
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NX-series System Units User's Manual (W523)
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