Configured for high-current discrete switching and field load control in SYSMAC CJ Series systems, the Omron CJ1W-OD202 (CJ1W-OD202 Transistor Output Unit) provides direct physical/electrical execution across 8 sourcing transistor output points.

Technical Identifier Matrix

• Base Hardware Model: CJ1W-OD202
• Full Part Number: CJ1W-OD202
• Product Type: Transistor Output Module (Sourcing)
• Series Family: Omron SYSMAC CJ Series
• Module Classification: Basic I/O Unit
• Output Configuration: 8 sourcing outputs (4 points/common, 2 circuits)
• Terminal Type: Terminal block

Hardware Specifications

Omron Backplane Bus Velocity & Real-Time Logic Execution

The CJ1W-OD202 interfaced with the CJ Series CPU backplane maps output bit states directly across the high-speed internal bus, updating physical transistor outputs with maximum execution speeds of 0.5 ms ON and 1.0 ms OFF. Hardware-level short-circuit protection trips at 6 A minimum, automatically restarting output execution following error recovery to maintain high I/O density scaling and scan determinism. The internal logic circuit draws a low backplane current of 110 mA at 5 VDC, while firmware compatibility allows hardware register assignment across the backplane upon power-up without adding scan delay.

Package Contents & Ordering Information

• 1x Omron CJ1W-OD202 Transistor Output Module
• 1x Terminal block connector kit
• 1x Hardware specification instruction sheet

Field Installation Guidelines

• Rack Mounting: Slide the CJ1W-OD202 unit into the CPU or expansion rack slot until the backplane bus connectors align and latch into position.
• Terminal Wiring: Wire field loads to the sourcing terminals using solid or stranded conductors, ensuring correct 24 VDC external power connection to terminals.
• Cable Shielding: Enclose field wiring in grounded metallic conduits or continuous 360-deg braid shields to isolate 24 VDC load switching from high-frequency noise.
• Chassis Grounding: Connect the rack Ground (GR) terminal directly to panel earth using copper conductor lines with ground loop resistance under 100 Ohms.

Frequently Asked Questions

• Is hot-swapping supported for the CJ1W-OD202 on a live SYSMAC CJ backplane?

  No. Main power to the CPU rack assembly must be turned off before inserting or removing the module to avoid hardware damage.

• What internal backplane current is required by the CJ1W-OD202?

  The module consumes a maximum of 110 mA at 5 VDC directly from the internal backplane logic power supply.

• What external power source must be connected to drive the output circuitry?

  An external 24 VDC power supply capable of supplying at least 50 mA at 20.4 to 26.4 VDC is required for output execution.

• How does the load short-circuit protection function operate?

  When load current exceeds 6 A minimum, short-circuit protection trips the circuit and automatically restarts operation after the error clears.

• What is the threshold for the line disconnection detection feature?

  The module detects field circuit disconnections when the output load current drops below the 200 mA detection limit.

• What dielectric strength rating is established for the terminal connections?

  Insulation withstands 1,000 VAC for 1 minute between external field terminals and the GR terminal at 10 mA maximum leakage.

• What is the maximum allowable load current per individual point and unit?

  Each output channel handles up to 2 A maximum, with a total maximum current capacity of 8 A for the entire module unit.

• What grounding resistance standard applies to the GR terminal ground path?

  The GR terminal must be bonded to the central panel earth ground bar maintaining an electrical resistance under 100 Ohms.