Part of the Omron CJ-Series PLCs series — see the full model table, lifecycle status and replacement parts.
Omron CJ1W-OD231 — 32-Pt NPN Output, FCN40
SKU: CJ1W-OD231USD 50.00
Omron CJ1W-OD231 32-point NPN sinking transistor output, 12-24 VDC 0.5 A, Fujitsu FCN40. In stock.
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Product Overview
The Omron CJ1W-OD231 is a 32-point NPN sinking transistor output unit for the CJ-series PLC rack, 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.
The unit provides 32 NPN open-collector transistor outputs at 0.5 A per point with 2 A per common and 4 A per unit total, switching 12 to 24 VDC loads. The 0.1 ms ON and 0.8 ms OFF response suits valve and relay coil control, though not high-speed pulse trains. Leakage is below 0.1 mA and residual voltage under 1.5 V.
The slim 31 mm form factor matches the CJ1W Basic I/O slot. Field wiring uses a Fujitsu FCN-361J040-AU 40-pin connector, so pre-wired Omron G79-O@@@ cables plug straight in. For PNP sourcing, use the CJ1W-OD232. Internal current draw is 150 mA at 5 VDC from the CJ bus, and the unit weighs 65 g.
Key Features
- 32-point NPN sinking transistor output for the CJ1W Basic I/O rack
- 0.5 A per point, 2 A per common, 4 A per unit, 0.1 ms ON / 0.8 ms OFF
- Fujitsu FCN-361J040-AU 40-pin connector, pre-wired G79-O@@@ cables plug straight in
- 31 mm slim form factor, 150 mA from 5 VDC CJ bus, 65 g
- SKU: CJ1W-OD231
- Series: CJ-series Basic I/O Unit, transistor output
- Voltage: 12 TO 24 VDC
Best-Fit Applications
- 32-output valve bank on a CJ2M packaging machine where the FCN40 connector keeps the panel wiring out of the rack
- Spare replacement for an end-of-life CJ1W-OD231 on a CS1H line that already uses Fujitsu connector pre-wired cables
- Distributed output block on a CJ1W-IC101 I/O control unit where 0.5 A per point covers 24 VDC pilot relays
Buying Checklist
- Choose the CJ1W-OD231 when the CJ-series rack needs 32 NPN sinking outputs in a single slim slot with the Fujitsu FCN40 connector.
- Choose the CJ1W-OD232 instead when the field wiring expects PNP sourcing outputs with a MIL connector and short-circuit protection.
- Choose the CJ1W-OC211 instead when 16 mechanical-relay outputs fit the cabinet better than 32 transistors for mixed-voltage loads.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | CJ-series Basic I/O Unit, transistor output |
| Model / SKU | CJ1W-OD231 |
| Output Type | 32 x NPN open-collector transistor outputs, sinking |
| Rated Voltage | 12 to 24 VDC (10.2 to 26.4 VDC permitted) |
| Load Current | 0.5 A per point, 2.0 A per common, 4.0 A per unit |
| Response Time | 0.1 ms ON / 0.8 ms OFF max |
| Leakage / Residual | 0.1 mA max leakage, 1.5 V max residual |
| Common Grouping | 16 points per common, 2 commons per unit |
| I/O Connection | Fujitsu / OTAX FCN-361J040-AU 40-pin connector (plug not included) |
| Internal Current | 150 mA max at 5 VDC from the CJ bus; 55 mA min at 24 VDC external |
| Dimensions / Weight | 20 x 90 x 66.5 mm, 65 g |
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 CJ1W-OD231
What is the difference between CJ1W-OD231 and CJ1W-OD232?
The CJ1W-OD231 is a 32-point NPN sinking transistor output with a Fujitsu FCN40 connector, no short-circuit protection. The CJ1W-OD232 is a 32-point PNP sourcing output with a MIL connector and per-point short-circuit detection. Use OD231 for Asian-style NPN wiring, OD232 for European-style PNP wiring.
Does the CJ1W-OD231 include the field connector?
No. The unit ships with the FCN-361J040-AU socket only; the FCN-360 series plug, the housing, and the crimp contacts are ordered separately. Pre-wired cables such as the Omron G79-O@@@ series or third-party FCN40 looms plug directly into the socket and save panel wiring time.
What is the maximum switching current for CJ1W-OD231?
0.5 A per output, 2.0 A per common (16 points share one common), 4.0 A per unit total. Outputs are open-collector transistors with no internal short-circuit protection, so fit an external fuse on each output when driving an inductive DC load like a solenoid or a brake coil.
Which CJ-series CPUs accept the CJ1W-OD231?
All CJ1M, CJ2M, CJ2H, and CS1H CPUs running a CJ-series rack. The OD231 also works on an NJ-series NJ501 or NJ301 controller via the CJ1W-IC101 I/O control unit, and on an NX102 via an NX-EIC202 EtherNet/IP coupler connected to a CJ1W-IC101.
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