Omron PROFINET NX-PNC202 User Manual page 147

Attaching a Terminal Block
1
Mount the terminal block hook on the guide at the bottom of the PROFINET Coupler Unit, lift up
the terminal block, and press in on the top of the terminal block until you hear it engage.
The terminal block will click into place on the Unit.
After you mount the terminal block, make sure that it is locked to the Unit.
Mount a Terminal Block that is applicable to the model of the PROFINET Coupler Unit.
Refer to 4-5 Terminal Blocks on page 4-10 for the applicable Terminal Blocks.
Preventing Incorrect Attachment of Terminal Blocks
In order to prevent unintentionally installing the wrong terminal block, you can limit the combination of a
Unit and a terminal block.
Insert three Coding Pins (NX-AUX02) into three of the six incorrect attachment prevention holes on the
Unit and on the terminal block. Insert these pins into positions so that they do not interfere with each
other when the Unit and terminal block are connected to each other.
You can use these pins to create a combination in which the wrong terminal block cannot be attached
because the pin patterns do not match.
Terminal block
NX-series PROFINET Coupler Unit User's Manual (W623)
Terminal block hook
Unit
Cannot be
attached.
Guide at bottom of PROFINET Coupler Unit
7 Wiring
7
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