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NX-ID / IA / OD / OC / MD
NX-series Digital I/O Unit
A wide range of digital I/O units from general purpose use to high-speed synchronous control
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last update: December 1, 2023
Model Number Structure
Ordering Information
Applicable standards
Digital Input Units
| Product Name | Specification | Model | ||||
|---|---|---|---|---|---|---|
| Number
of points |
Internal
I/O common |
Rated
input voltage |
I/O refreshing method | ON/OFF
response time |
||
DC Input Unit
(Screwless Clamping Terminal Block, 12 mm Width/ 24 mm Width) |
4 points | NPN | 12 to
24 VDC |
Switching Synchronous I/O
refreshing and Free-Run refreshing |
20 μs max./
400 μs max. |
NX-ID3317 |
| 24 VDC | 100 ns max./
100 ns max. |
NX-ID3343 | ||||
| Input refreshing with input
changed time only *1 |
NX-ID3344 | |||||
| PNP | 12 to
24 VDC |
Switching Synchronous I/O
refreshing and Free-Run refreshing |
20 μs max./
400 μs max. |
NX-ID3417 | ||
| 24 VDC | Input refreshing with input
changed time only *1 |
100 ns max./
100 ns max. |
NX-ID3443 | |||
| NX-ID3444 | ||||||
| 8 points | NPN | Switching Synchronous I/O
refreshing and Free-Run refreshing |
20 μs max./
400 μs max. |
NX-ID4342 | ||
| PNP | NX-ID4442 | |||||
| 16 points | NPN | NX-ID5342 | ||||
| PNP | NX-ID5442 | |||||
| 32 points | NPN | NX-ID6342 | ||||
| PNP | NX-ID6442 | |||||
DC Input Unit
(M3 Screw Terminal Block, 30 mm Width) |
16 points | For both
NPN/PNP |
24 VDC | Switching Synchronous I/O
refreshing and Free-Run refreshing |
20 μs max./
400 μs max. |
NX-ID5142-1 |
DC Input Unit
(MIL Connector, 30 mm Width) |
16 points | For both
NPN/PNP |
24 VDC | Switching Synchronous I/O
refreshing and Free-Run refreshing |
20 μs max./
400 μs max. |
NX-ID5142-5 |
| 32 points | NX-ID6142-5 | |||||
DC Input Unit
(Fujitsu/OTAX Connector, 30 mm Width) |
32 points | For both
NPN/PNP |
24 VDC | Switching Synchronous I/O
refreshing and Free-Run refreshing |
20 μs max./
400 μs max. |
NX-ID6142-6 |
AC Input Unit
(Screwless Clamping Terminal Block, 12 mm Width) |
4 points | 200 to 240 VAC,
50/60 Hz (170 to 264 VAC, ±3 Hz) |
Free-Run refreshing | 10 ms max./
40 ms max. |
NX-IA3117 | |
*1. To use input refreshing with input changed time, the EtherCAT Coupler Unit with unit version 1.1 or later and the
Sysmac Studio version 1.07 or higher are required.
Sysmac Studio version 1.07 or higher are required.
Digital Output Units
| Product
Name |
Specification | Model | |||||
|---|---|---|---|---|---|---|---|
| Number
of points |
Internal
I/O common |
Maximum
value of load current |
Rated
voltage |
I/O
refreshing method |
ON/OFF
response time |
||
| Transistor
Output Unit 
(Screwless Clamping Terminal Block, 12 mm Width/ 24 mm Width) |
2 points | NPN | 0.5 A/point,
1 A/Unit |
24 VDC | Output
refreshing with specified time stamp only *1 |
300 ns max./
300 ns max. |
NX-OD2154 |
| PNP | NX-OD2258 | ||||||
| 4 points | NPN | 0.5 A/point,
2 A/Unit |
12 to
24 VDC |
Switching
Synchronous I/O refreshing and Free-Run refreshing |
0.1 ms max./
0.8 ms max. |
NX-OD3121 | |
| 24 VDC | 300 ns max./
300 ns max. |
NX-OD3153 | |||||
| PNP | 0.5 ms max./
1.0 ms max. |
NX-OD3256 | |||||
| 300 ns max./
300 ns max. |
NX-OD3257 | ||||||
| 2 A/point,
8 A/Unit |
0.5 ms max./
1.0 ms max. |
NX-OD3268 | |||||
| 8 points | NPN | 0.5 A/point,
4 A/Unit |
12 to
24 VDC |
0.1 ms max./
0.8 ms max. |
NX-OD4121 | ||
| PNP | 24 VDC | 0.5 ms max./
1.0 ms max. |
NX-OD4256 | ||||
| 16 points | NPN | 12 to
24 VDC |
0.1 ms max./
0.8 ms max. |
NX-OD5121 | |||
| PNP | 24 VDC | 0.5 ms max./
1.0 ms max. |
NX-OD5256 | ||||
| 32 points | NPN | 0.5 A/point, 4 A/
terminal block, 8 A/Unit |
12 to 24 VDC | 0.1 ms max./
0.8 ms max. |
NX-OD6121 | ||
| PNP | 24 VDC | 0.5 ms max./
1.0 ms max. |
NX-OD6256 | ||||
| Transistor
Output Unit 
(M3 Screw Terminal Block, 30 mm Width) |
16 points | NPN | 0.5 A/point,
5 A/Unit |
12 to
24 VDC |
Switching
Synchronous I/O refreshing and Free-Run refreshing |
0.1 ms max./
0.8 ms max. |
NX-OD5121-1 |
| PNP | 24 VDC | 0.5 ms max./
1.0 ms max. |
NX-OD5256-1 | ||||
| Transistor
Output Unit 
(MIL Connector, 30 mm Width) |
16 points | NPN | 0.5 A/point,
2 A/Unit |
12 to
24 VDC |
Switching
Synchronous I/O refreshing and Free-Run refreshing |
0.1 ms max./
0.8 ms max. |
NX-OD5121-5 |
| PNP | 24 VDC | 0.5 ms max./
1.0 ms max. |
NX-OD5256-5 | ||||
| 32 points | NPN | 0.5 A/point,
2 A/common, 4 A/Unit |
12 to
24 VDC |
0.1 ms max./
0.8 ms max. |
NX-OD6121-5 | ||
| PNP | 24 VDC | 0.5 ms max./
1.0 ms max. |
NX-OD6256-5 | ||||
| Transistor
Output Unit 
(Fujitsu/OTAX Connector, 30 mm Width) |
32 points | NPN | 0.5 A/point,
2 A/common, 4 A/Unit |
12 to
24 VDC |
Switching
Synchronous I/O refreshing and Free-Run refreshing |
0.1 ms max./
0.8 ms max. |
NX-OD6121-6 |
| Relay Output
Unit 
(Screwless Clamping Terminal Block, 12 mm Width/ 24 mm Width) |
2 points | Relay type:
N.O. |
250 VAC/2 A (cosφ=1),
250 VAC/2 A (cosφ=0.4), 24 VDC/2 A, 4 A/Unit |
Free-Run
refreshing |
15 ms max./
15 ms max. |
NX-OC2633 | |
| Relay type:
N.O.+N.C. |
NX-OC2733 | ||||||
| 8 points | Relay type:
N.O. |
250 VAC/2 A (cosφ=1),
250 VAC/2 A (cosφ=0.4), 24 VDC/2 A, 8 A/Unit |
Free-Run
refreshing |
15ms max./
15ms max. |
NX-OC4633 | ||
*1. To use input refreshing with input changed time, the EtherCAT Coupler Unit with unit version 1.1 or later and the
Sysmac Studio version 1.07 or higher are required.
Sysmac Studio version 1.07 or higher are required.
Digital Mixed I/O Units
| Product
Name |
Specification | Model | ||||
|---|---|---|---|---|---|---|
| Number
of points |
Internal I/O
common |
Maximum
value of load current |
I/O
refreshing method |
ON/OFF
response time |
||
| DC Input/
Transistor Output Unit 
(MIL Connector, 30 mm Width) |
Outputs:
16 points Inputs: 16 points |
Outputs: NPN
Inputs: For both NPN/PNP |
Outputs:
12 to 24 VDC Inputs: 24 VDCV |
Switching
Synchronous I/O refreshing and Free-Run refreshing |
Outputs: 0.1 ms max./
0.8 ms max. Inputs: 20 μs max./ 400 μs max. |
NX-MD6121-5 |
| Outputs: PNP
Inputs: For both NPN/PNP |
Outputs:
24 VDC Inputs: 24 VDC |
Outputs: 0.5 ms max./
1.0 ms max. Inputs: 20 μs max./ 400 μs max. |
NX-MD6256-5 | |||
| Transistor
Output Unit 
(Fujitsu/OTAX Connector, 30 mm Width) |
Outputs:
16 points Inputs: 16 points |
Outputs: NPN
Inputs: For both NPN/PNP |
Outputs:
12 to 24 VDC Inputs: 24 VDC |
Switching
Synchronous I/O refreshing and Free-Run refreshing |
Outputs: 0.1 ms max./
0.8 ms max. Inputs: 20 μs max./ 400 μs max. |
NX-MD6121-6 |
Optional Products
| Product name | Specification | Model | Standards |
|---|---|---|---|
| Unit/Terminal Block Coding Pins | For 10 Units (Terminal Block: 30 pins, Unit: 30 pins) | NX-AUX02 | - |
| Product name | Specification | Model | Standards | |||
|---|---|---|---|---|---|---|
| No. of
terminals |
Terminal number
indications |
Ground
terminal mark |
Terminal current
capacity |
|||
| Terminal Block | 8 | A/B | None | 10 A | NX-TBA082 | --- |
| 12 | NX-TBA122 | |||||
| 16 | NX-TBA162 | |||||
| 16 | C/D | NX-TBB162 | ||||
Accessories
Not included.
last update: December 1, 2023
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