Omron NX-EC0122

7 SSI Input Units
7 - 10
NX-series Position Interface Units User’s Manual (W524)
7-5 Terminal Block Arrangement
SSI Input Units use screwless clamping terminal blocks.
This section describes the terminal block arrangements of the Units.
This section provides diagrams of the terminal block arrangement and internal power supply wiring of
the One-input Unit. It also provides a wiring example.
A 12-terminal terminal block is used.
Note The SSI power supply output (24 V and 0 V) is provided power from the I/O power supply connected to the
Communications Coupler Unit or an Additional I/O Power Supply Unit.
7-5-1 NX-ECS112
Terminal Block Arrangement
Terminal No. Symbol I/O Name
A1 C+ O Synchronous clock output + side
A2 C− O Synchronous clock output − side
A3 IOV O SSI power supply output, 24 VDC
A4 IOG O SSI power supply output, 0 VDC
A5 NC --- Not used.
A6 NC --- Not used.
A7 --- --- ---
A8 --- --- ---
Terminal No. Symbol I/O Name
B1 D+ I SSI data input + side
B2 D− I SSI data input − side
B3 IOV O SSI power supply output, 24 VDC
B4 IOG O SSI power supply output, 0 VDC
B5 NC --- Not used.
B6 NC --- Not used.
B7 --- --- ---
B8 --- --- ---
C+ D+
D-
IOV
IOG
NC
NC
C-
IOV
IOG
NC
NC
A B
A B
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8