Omron CJ1W-OD204 Output Unit

USD 121.64

8-point sourcing transistor output unit, 24 VDC, 0.5 A/point, short-circuit protected, screw terminal block.

SKU Omron-CJ1W-OD204 Category
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Omron CJ1W-OD204 Output Unit

Model Identifier CJ1W-OD204
Official Part Number CJ1W-OD204
GTIN Standard NA

Technical Overview

CJ-series digital output unit with 8 sourcing transistor outputs for CJ I/O Bus PLC systems. Designed for 24 VDC load switching with 0.5 A per point, short-circuit protection, alarm indication, and screw-terminal wiring. Official Omron documentation identifies it as a basic I/O expansion unit for CJ-series controllers, with unpacked dimensions of 90 mm H × 31 mm W × 89 mm D and weight of 120 g.

Key Features

  • 8 digital transistor outputs
  • PNP sourcing output type
  • 24 VDC rated load with 20.4 to 26.4 VDC operating range
  • 0.5 A per output point
  • Short-circuit protected outputs
  • Alarm indication on output fault
  • Screw-terminal connection
  • Detachable I/O terminal block
  • CJ I/O Bus compatible
  • Compact 90 mm x 31 mm x 89 mm footprint

8 x PNP transistor outputs rated 24 VDC with 0.5 A per point and short-circuit protection.

Technical Specification Matrix

ParameterValue
I/O systemCJ I/O Bus
Expansion unit typeBasic I/O Unit
Type of moduleDigital I/O
Number of digital inputs0
Digital input typeNone
OFF/ON delay1-8 ms
Number of digital outputs8
Digital output typePNP
Rated voltage24 VDC
Permitted voltage at output20.4-26.4 VDC
Output current0.5 A
Maximum load current0.5 A/point, 4.0 A/unit
Short-circuit protected outputsYes
I/O connection typeScrew
Number of I/O connectors1
Detachable I/O terminal blockYes
Suitable for safety functionsNo
Number of IOV (V+) terminals1
Number of IOG (V-) terminals1
Number of COM terminals0
Leakage current0.1 mA max.
Residual voltage1.5 V max.
ON response time0.5 ms max.
OFF response time1.0 ms max.
Load short-circuit protection detection current0.7 to 2.5 A
Load short-circuit protection recoveryAutomatic restart after error clearance
Insulation resistance20 MΩ between external terminals and GR terminal at 100 VDC
Dielectric strength1,000 VAC between external terminals and GR terminal for 1 minute at 10 mA max. leakage current
Product height (unpacked)90 mm
Product width (unpacked)31 mm
Product depth (unpacked)89 mm
Product weight (unpacked)120 g

Industrial Applications

1. Valve and solenoid manifold control

Drives multiple 24 VDC solenoids from a CJ-series PLC where each channel needs sourcing outputs and compact DIN-rail mounting.

Problem Solved

Provides isolated, protected switching for clustered field actuators without external relay banks.

24 VDCPNP sourcing0.5 A per pointshort-circuit protectionsolenoid valves

2. Stack light and indicator panel switching

Controls industrial pilot lamps, beacons, and status indicators that accept 24 VDC output sourcing from a PLC expansion module.

Problem Solved

Eliminates relay chatter and simplifies wiring for low-current visual signaling loads.

indicator lampspilot lights24 VDC outputsCJ I/O Busscrew terminal

3. Machine interlock and auxiliary load actuation

Suitable for compact machine stations needing several fast, discrete outputs for contactors, small relays, or auxiliary devices within the 0.5 A channel rating.

Problem Solved

Enables dense output packing in a limited PLC rack while maintaining fault detection and response speed.

0.5 A outputON response timeOFF response timeindustrial automationauxiliary control
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