Terminal block
Unit
Cannot be
attached.
Types of Coding Pins
There are two types of Coding Pins, both with their own unique shape: one for terminal blocks and one
for Units.
Three pins come with each runner
.
For terminal block For Unit
Coding Pins (Use this part.)
Runners
Use the following Coding Pins.
Name Model Specification
Coding Pin NX-AUX02 For 10 Units (Terminal block: 30 pins, Unit: 30 pins)
Insertion Locations and Patterns of Coding Pins
Insert three Coding Pins each on the terminal block and on the Unit at the positions designated by the
numbers 1 through 6 in the figure below.
As shown in the following table, there are 20 unique pin patterns that you can use.
4 Installation and Wiring
4-56
NX-series System Units User's Manual (W523)