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NX-series Analog I/O Units User’s Manual for Analog Input Units and Analog Output Units (W522)
This section describes how to install the NX Units, the types of power supplies provided
to the NX Units and wiring methods, and how to wire the NX Units.
4-1 Installing NX Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-1-1 Installing NX Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-1-2 Attaching Markers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4-1-3 Removing NX Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4-1-4 Installation Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4-2 Power Supply Types and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
4-2-1 Applications of I/O Power Supply and Supply Methods . . . . . . . . . . . . . . . . . . 4-9
4-2-2 Calculating the Total Current Consumption from I/O Power Supply . . . . . . . . .4-11
4-3 Wiring the Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
4-3-1 Wiring to the Screwless Clamping Terminal Block . . . . . . . . . . . . . . . . . . . . . 4-12
4-3-2 Checking the Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28
4-4 Wiring Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29
4-4-1 Wiring the Analog Input Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29
4-4-2 Wiring the Analog Output Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
4-4-3 Precautions when Using Common Power Supply for Input Devices
of Analog Input Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Installation and Wiring