Omron NX-EC0112, User Manual

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4 Installation and Wiring
NX-series Position Interface Units User’s Manual (W524)
4-
3 W
irin
g
t
h
e T
ermin
als
4
4-
3-2 Pr
even
ting In
cor
rect Att
achment of T
erminal Blocks
You can limit the possible Position Interface Unit and terminal block combinations to prevent uninten-
tionally connecting the wrong terminal block.
Insert three Coding Pins (NX-AUX02) into three of the six incorrect attachment prevention holes on the
terminal block and the Position Interface Unit. Insert the pins so that they do not conflict with each other
when the Position Interface Unit and terminal block are connected to each other.
You can use these pins to create combinations in which the wrong terminal block cannot be attached
because the pin patterns do not match.
 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.
Use the following Coding Pins.
4-3-2 Preventing Incorrect Attachment of Terminal Blocks
Name Model Specifications
Coding Pins NX-AUX02 For 10 Units (Terminal Block: 30 pins, Unit:
30 pins)
Terminal Block Unit
Terminal
block
cannot be
attached.
For Terminal Block For Unit
Runners
Coding Pins (Use this part.)