Part of the Omron NX-Series Safety & I/O series — see the full model table, lifecycle status and replacement parts.
Omron NX-OD6256-5 — 32-Pt PNP Output, MIL40
SKU: NX-OD6256-5USD 128.00
Omron NX-OD6256-5 NX-series 32-point PNP output, MIL40 connector, 30 mm wide, Free-Run or Sync refresh. In stock, China shipping.
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Product Overview
The Omron NX-OD6256-5 is the NX-series 32-point PNP transistor output unit, manufactured by Omron Corporation. Hengyixin Automation stocks this controller option board in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports. Specifications on this page were checked against Omron's NX-series I/O System brochure (R183).
It delivers 32 PNP sourcing outputs at 0.5 A per point, 2 A per common, and 4 A per unit from a 24 VDC load supply (20.4 to 28.8 VDC). Maximum inrush is 4.0 A per point for 10 ms. Residual voltage is 1.5 V max and leakage is 0.1 mA max. ON response is 0.5 ms max and OFF is 1.0 ms max.
I/O refresh can switch between Free-Run and Synchronous. The unit includes load short-circuit protection, four IOV (V+) and four IOG (V-) terminals, and photocoupler isolation to the NX bus. The 30 x 100 x 71 mm housing weighs 95 g. The MIL40 connector is sold separately; pair with an XW2Z MIL-to-Phoenix cable. The NPN sibling is the NX-OD6121-6. For 16 PNP outputs pick the NX-OD5256.
Key Features
- NX-series 32-point PNP transistor output unit with MIL40 connector (sold separately), 30 mm wide
- 0.5 A per point, 2 A per common, 4 A per unit, 24 VDC nominal (20.4 to 28.8 VDC operating range), load short-circuit protection
- ON 0.5 ms max, OFF 1.0 ms max, switchable Free-Run or Synchronous I/O refresh, photocoupler isolation
- NX Unit power 1.30 W max on CPU or Communication Control Unit, 1.00 W max on Communications Coupler Unit, IP20
- SKU: NX-OD6256-5
- Series: NX-series machine automation I/O, digital output family (NX-OD)
- Voltage: 24 VDC
- I/O: 16 points
Best-Fit Applications
- Valve manifold on a multi-station rotary indexer where the NX-OD6256-5 drives 32 pneumatic solenoid outputs from one NX drop instead of running 32 home-run wires
- Indicator and stack-light cluster on a packaging line where the NX-OD6256-5 feeds 24 VDC LED drivers to a Sysmac NJ501 over EtherCAT with synchronous refresh
- Spare replacement on an automotive welding line where a CJ1W-OD232 32-point output migrates onto the NX-OD6256-5 with the XW2Z-100K MIL40 cable kept
Buying Checklist
- Pick the NX-OD6256-5 for 32 PNP sourcing outputs on a MIL40 connector with load short-circuit protection and switchable Free-Run or Synchronous refresh.
- Pick the NX-OD6121-6 instead when the cabinet needs 32 NPN sinking outputs on a Fujitsu/OTAX connector at the same 30 mm width.
- Pick the NX-OD5256 instead when 16 PNP outputs on screwless push-in terminals (no MIL cable needed) are enough and the 32-point density is not required.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | NX-series machine automation I/O, digital output family (NX-OD) |
| Model / SKU | NX-OD6256-5 |
| I/O Configuration | 32 outputs, PNP transistor (sourcing), 2 commons (16 points per common) |
| Rated Voltage | 24 VDC nominal; operating load voltage range 20.4 to 28.8 VDC |
| Output Rating | 0.5 A per point, 2 A per common, 4 A per unit; max inrush 4.0 A/point for 10 ms; residual voltage 1.5 V max; leakage 0.1 mA max |
| Response Time | ON 0.5 ms max, OFF 1.0 ms max |
| I/O Refresh | Switchable between Synchronous I/O refreshing and Free-Run refreshing |
| Connector | MIL connector, 40 terminals (plug not included); 4 IOV (V+) terminals and 4 IOG (V-) terminals |
| Protection | With load short-circuit protection; no disconnection detection; photocoupler isolation between output and NX bus |
| Power | NX Unit power 1.30 W max on CPU or Communication Control Unit, 1.00 W max on Communications Coupler Unit; I/O supply current 80 mA max |
| Environment / Wiring | 0 to 55 C operating, 10 to 95 percent humidity (no condensation); 30 (W) x 100 (H) x 71 (D) mm; 95 g; 35 mm DIN rail mount; IP20; cULus, CE, RCM, KC, NK, LR approvals |
Manufacturer documentation
Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.
FAQ for NX-OD6256-5
What is the Omron NX-OD6256-5 used for?
It is the NX-series 32-point PNP transistor output unit that delivers 0.5 A per point from a 24 VDC load supply on a 30 mm wide housing. The MIL40 connector is on the front face and accepts an XW2Z series MIL-to-Phoenix cable. Typical uses are valve manifolds on rotary indexers, stack-light clusters on packaging lines, and any Sysmac NJ or NX panel where 32 sourcing outputs need to land on one node.
Does the NX-OD6256-5 have short-circuit protection?
Yes. Each output on the NX-OD6256-5 is protected against load short-circuit per Omron's spec. Disconnection detection is not supported on this model. The protection trips and latches the output off until the fault is cleared and the I/O is reset from the controller.
What cable connects to the NX-OD6256-5 MIL connector?
Any MIL40-to-Phoenix breakout cable from the Omron XW2Z family. The XW2Z-100K is the 1 m MIL40 to MIL40 jumper; the XW2Z-100FN-L is the 1 m MIL40 to open-end stripped leads. The MIL40 plug itself is not included with the NX-OD6256-5 and must be ordered separately.
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