Omron NX-ID User Manual page 65

Let-
ter
(A) Terminal number indi-
cations
(B) Release holes
(C) Terminal holes
The NX-TB2 and NX-TB1 Terminal Blocks have different terminal current capacities.
The NX-TB2 has 10 A and NX-TB1 has 4 A.
To differentiate between the two models of terminal blocks, use the terminal number column indica-
tions. The terminal block with white letters on a dark background is the NX-TB2.
You can mount either NX-TB1 or NX-TB2 Terminal Blocks to the Units that the current
capacity specification of the terminals is 4 A or less.
You can only mount the NX-TB2 Terminal Block to the Units that the current capacity specifi-
cation of the terminals is greater than 4 A.
Additional Information
• Each Digital I/O Unit is compatible with only one of three types of terminal blocks. You can-
not use a terminal block with a number of terminals that differs from the specifications for a
particular Unit.
• The 8-terminal type and 12-terminal type do not have terminal holes and release holes for
following terminal numbers.
8-terminal type: A2, A4, A6, A8, B2, B4, B6, and B8
12-terminal type: A7, A8, B7, and B8
NX-series Digital I/O Unit User's Manual (W521)
Name
Terminal numbers for which A and B indicate the column, and 1 to 8 indicate
the line are displayed.
The terminal number is a combination of column and line, i.e. A1 to A8 and
B1 to B8.
For models of 24 mm width, A1 to A8 and B1 to B8 are terminal number of
the left terminal block, C1 to C8 and D1 to D8 are terminal numbers of the
right terminal block.
The terminal number indications are the same regardless of the number of
terminals 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.
3 Part Names and Functions
Function
3
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