Configured for open-loop single-axis pulse train motion execution in CJ-series PLC systems, the Omron CJ1W-NC113 (CJ1W-NC113 Position Control Unit) provides direct physical/electrical execution.

Module Configuration and Variant Breakdown

The Omron CJ1W-NC113 occupies a single Special I/O Unit slot on the CJ-series CPU rack or expansion rack. Its part numbering hierarchy reflects system allocation parameters:

• CJ1W: Dedicated I/O module platform designed for CJ1G, CJ1M, CJ2M, and CJ2H PLC backplanes.
• NC: Motion control designation indicating direct pulse train generation for stepper or servo driver command inputs.
• 113: Structural designator representing a single-axis hardware channel ("1") utilizing open-collector output circuitry ("13").
• Unit Number Allocation: Consumes 1 Special I/O Unit slot address (set via the front-panel rotary switch from 0 to 95).

Core Physical and Electrical Specifications

Backplane Integration & Deterministic I/O Bus Execution

The module communicates directly across the CJ-series local backplane bus, transferring control words, target positioning addresses, and pulse frequency profiles between CPU memory and hardware registers. High-density I/O routing prevents firmware flash buffer underruns during fast acceleration curves. Internal field-effect isolation protects logic circuitry from electrical noise on the open-collector output lines.

Delivery Package Details

• 1 x Omron CJ1W-NC113 Single-Axis Position Control Unit
• 1 x High-density 18-pin terminal block connector assembly
• 1 x Hardware installation sheet and panel earth strap guide

Control Panel Installation Practices

• Backplane Slot Alignment: Power off the rack before inserting the module into the CJ-series backplane. Engage upper and lower mounting catches until locked.
• Open-Collector Shielding: Route output pulse and direction cables in shielded twisted-pair wire, segregated from 230 VAC/480 VAC motor power lines by at least 200 mm.
• Grounding Protocol: Connect the drain wire of shielded cables to a single-point panel ground with a ground impedance lower than 100 ohms.
• External Power Termination: Ensure external power supplies powering pulse collector loops do not exceed 24 VDC voltage parameters to avoid thermal damage to collector transistors.

Technical Support FAQs

• How is the unit address configured on the module hardware?

  Set the front-panel rotary switch to an unallocated number between 0 and 95 prior to powering on the system.

• Does the CJ1W-NC113 require an external 24 VDC power supply to operate internal logic?

  No. The internal logic draws 0.25 A directly from the 5 VDC PLC backplane supply.

• What output signal configuration is supported by this hardware?

  The unit features open-collector outputs suitable for driving line receivers or optocouplers on motor drives.

• Can this unit be removed while the CJ-series PLC CPU is running?

  No. Hot-swapping Special I/O modules on a live CJ1 backplane will cause a bus fault and stop system execution.

• What happens if the output pulse frequency command exceeds hardware limits?

  The module flags an instruction error register in PLC memory and inhibits pulse transmission to the drive interface.

• Is differential line driver wiring supported on the output terminal?

  No. The CJ1W-NC113 is limited to open-collector switching. Use differential units for long-distance signals.

• How many unit numbers does the CJ1W-NC113 consume in memory allocation?

  The module consumes exactly 1 Special I/O unit number within the PLC allocation table.

• What cable length restriction applies to the open-collector outputs?

  Keep pulse command cabling under 2 meters to limit signal degradation and electromagnetic noise coupling.