Terminal Block - Omron NX-ECC201 User Manual

4 Part Names and Functions
4-5

Terminal Block

The terminal block on the EtherCAT Coupler Unit is a removable screwless clamping terminal block that
allows you to easily connect and remove the wiring.
The Unit power supply, I/O power supply, and ground wire are connected to this screwless clamping

terminal block.

For details, refer to 7-2 Connecting the Power Supply and Ground Wires on page 7-8.
Terminal blocks come in three types depending on the number of terminals that can be used. There are
8-terminal type, 12-terminal type, and 16-terminal type.
Only an 8-terminal terminal block can be mounted to the EtherCAT Coupler Unit.
To prevent incorrect wire insertion, other terminal blocks cannot be mounted.
(A)
A1
A2
A3
A4
A5
A6
A7
A8
8-terminal type
Letter Name
(A) Terminal num-
ber indications
(B) Release holes
(C) Terminal holes
Additional Information
On 8-terminal type of terminal blocks, the following terminals do not have terminal holes and
release holes: A2, A4, A6, A8, B2, B4, B6, and B8.
4 - 12
(B)
B1
(C)
B2
B3
B4
B5
B6
B7
B8
The terminal numbers (A1 to A8 and B1 to B8) are displayed.
The terminal number indications are the same regardless of the number of termi-
nals on the terminal block.
Insert a flat-blade screwdriver into these holes to connect and remove the wires.
The wires are inserted into these holes.
Function
NX-series EtherCAT Coupler Unit User's Manual (W519)