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4   Installation and Wiring
NX-series Analog I/O Units User’s Manual for Analog Input Units and Analog Output Units (W522)
4-3  Wiring the Terminals
4
4-3-1  Wiring to the Screwless Clamping Terminal Block
To make the maximum of 20 patterns, purchase two sets of NX-AUX02 Pins. (One set for 10 Units.)
Precautions for Correct Use
• OMRON uses the holes other than No. 1 to 6 in the figure on the previous page. If you insert 
a Coding Pin into one of the holes used by OMRON on the terminal block side, this makes it 
impossible to mount the terminal block on a Unit.
• Do not use Coding Pins that have been attached and removed.
z Inserting the Coding Pins
1 Hold the pins by the runner and insert a pin into one of the incorrect attachment prevention 
holes on the terminal block or on the Unit.
2 Rotate the runner to break off the Coding Pins.