NX-CSG/SL5/SI/SO
18
Safety Input Units NX-SIH400/SID800
Safety Output Units NX-SOH200/SOD400
Terminal Blocks
Applicable Terminal Blocks for Each Unit Model
Letter Item Specification
(A) Marker attachment locations
The locations where markers are attached. The markers made by OMRON are installed for the factory setting.
Commercially available markers can also be installed.
(B) NX bus connector
This is the NX-series bus connector. Connect this connector to another Unit, such as the NX-series Safety CPU Unit or
a Safety I/O Unit.
(C) Unit hookup guides These guides are used to connect two Units.
(D) DIN Track mounting hooks These hooks are used to mount the NX Unit to a DIN Track.
(E) Protrusions for removing the Unit The protrusions to hold when removing the Unit.
(F) Indicators
The indicators show the current operating status of the NX Unit or signal I/O status.
The number of indicators varies depending on the NX Unit.
(G) Terminal block
The terminal block is used to connect to external devices. It connects the safety outputs. The number of terminals
depends on the NX Unit.
(H) Unit specifications The specifications of the NX Unit are given here.
Letter Item Specification
(A) Terminal number indications
The terminal numbers are given by column letters A and B, and row numbers 1 to 8. The combination of the column and
row gives the terminal numbers from A1 to A8 and B1 to B8. The terminal number indicators are the same regardless
of the number of terminals on the terminal block, as shown above.
(B) Release holes Insert a flat-blade screwdriver into these holes to connect and remove the wires.
(C) Terminal holes The wires are inserted into these holes.
Unit model
number
Terminal Blocks
Model
No. of
terminals
Terminal number
indications
Ground terminal
mark
Terminal current
capacity
NX-SIH400 NX-TBA082 8 A/B None 10 A
NX-SID800 NX-TBA162 16 A/B None 10 A
NX-SOH200 NX-TBA082 8 A/B None 10 A
NX-SOD400 NX-TBA082 8 A/B None 10 A
(C)(D)
(H)
(G)
(F)
(C)
(A)
(E)
(C)(E)
(C)
(B)
(B)
8-terminal type
(B)
16-terminal type
(C)
(A)
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6
B7
B8
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6
B7
B8