Configured for 200 VAC discretely switched field signal detection within CJ Series PLC backplane architectures, the Omron CJ1W-IA201 (CJ1W-IA201 AC Input Unit) provides direct physical/electrical execution.

Functional Configuration & Signal Mapping

• Input Configuration: Features 8 high-voltage AC input points operating on a single shared common line across 1 discrete circuit.
• Voltage Rating: Standard operational voltage ranges from 200 to 240 VAC at 50/60 Hz, accommodating operating variations between 170 and 264 VAC.
• Circuit Load: Draws a nominal input current of 9 mA typical at 200 VAC (50 Hz) and 11 mA typical at 200 VAC (60 Hz), with input impedance set to 21 kOhm at 50 Hz and 18 kOhm at 60 Hz.

Operational Parameters

Scalable I/O Density & Backplane Integration

The internal logic circuitry interface scales signal acquisition speed across the backplane bus communication velocity Licences without degrading system response times. High-density I/O density scaling allows full simultaneous 100% point activation (8 points ON simultaneously) without exceeding system thermal limits. Integrated isolation circuits protect internal CPU architecture, while hardware flash compatibility ensures predictable execution cycles across varying controller chassis configurations.

Shipping Package Contents

• 1 x Omron CJ1W-IA201 AC Input Module
• 1 x Removable Terminal Block Assembly
• 1 x Installation Instruction Leaflet

Wiring & Mounting Procedures

• Rack Installation: Insert the module firmly into the CJ Series CPU rack or Expansion rack slot until the upper and lower locking levers snap securely.
• Field Wiring Connection: Wire 200 to 240 VAC signal lines directly to the removable terminal block using proper crimp terminals. Ensure line voltage is verified prior to energizing.
• Grounding Terminal Setup: Ensure the GR ground terminal is linked to a heavy-gauge protective earth bus with ground resistance under 100 ohm to guarantee insulation isolation.
• Cable Routing: Keep 200 VAC input field cables isolated from low-voltage DC lines and communication cables in control panels to reduce crosstalk interference.

Technical Questions & Answers

• What is the response delay when an input signal transitions from OFF to ON?

  The hardware maximum ON response time is 18.0 ms, though internal filtering defaults to an 8 ms response configuration.

• Can all 8 AC input channels be energized simultaneously during operation?

  Yes, the module supports a 100% simultaneous ON factor, allowing all 8 points on the common line to operate at 240 VAC concurrently.

• What voltage threshold guarantees an ON state signal detection?

  An input signal requires a minimum threshold of 120 VAC and 4 mA current to reliably drive the channel into a recognized ON state.

• What level of electrical isolation is provided between terminals and ground?

  The module withstands 2,000 VAC at 50/60 Hz for 1 minute between external field terminals and the GR terminal with under 10 mA leakage.

• How much current does the unit draw from the internal 5 VDC backplane?

  Internal logic circuitry consumes a maximum current load of 80 mA from the 5 VDC system backplane power rail.

• Is hot-swapping allowed for this AC input terminal block during operation?

  No, field voltage must be powered down and backplane power disconnected before removing the unit or terminal block to avoid component damage.

• What happens if the applied voltage drops below 40 VAC?

  Any voltage level of 40 VAC or below with current under 2 mA guarantees the channel registers a clear OFF state.

• Does the module require an external power supply for internal logic?

  No, internal processing circuitry runs directly off the 5 VDC backplane bus, while inputs operate on the external 200 VAC signal source.