Configured for high-density thermal control execution in CJ Series PLC systems, the Omron CJ1W-TC002, also cataloged as the CJ1W-TC002 Temperature Control Unit, provides direct physical/electrical execution for PID loop regulation and sensor input processing without CPU overhead.

Technical Identifier Matrix

Hardware Specifications

Backplane Bus Velocity and I/O Scaling Analysis

The Omron CJ1W-TC002 offloads processing cycles from the main CPU by executing dedicated 2-PID algorithms directly on the module hardware. Backplane bus velocity remains optimized as loop updates occur independently of the main PLC scan time. Inter-module noise suppression maintains signal integrity across the CJ I/O Bus structure, preventing control loop degradation during high-density I/O expansion. Firmware flash compatibility ensures uniform operational behavior when integrated alongside high-speed CJ Series processor units.

Package Contents & Ordering Information

• 1x Omron CJ1W-TC002 Temperature Control Unit
• 1x Terminal Block Connector Set (18-point screw terminal)
• 1x CJ1W-TC002 Datasheet and Hardware Manual

Field Installation Guidelines

• Mounting: Snap unit onto CJ1 Series CPU or expansion rack backplane bus connector until locking levers engage fully.
• Wiring Setup: Route thermocouple extension wires separately from high-voltage AC power lines to prevent inductive coupling.
• Shielding & Grounding: Connect cable shields to a dedicated functional earth ground terminal using short, low-impedance connections. Maintain 360-deg braid shielding across terminal entry points.
• Cold Junction Compensation: Ensure the cold junction sensor on the terminal block remains unshielded from ambient air currents and undisturbed during terminal wiring.

Frequently Asked Questions

• What is the backplane current consumption for the CJ1W-TC002?

  The module draws 0.25 A at 5 VDC directly from the CJ Series PLC internal backplane power supply.

• Can thermocouple types be mixed across different input channels?

  Yes, input sensor types can be individually configured per channel via module DIP switches or software settings.

• What is the digital output specification for heating/cooling control?

  The unit provides 4 PNP voltage pulse outputs rated for 24 VDC with a maximum load current of 100 mA per channel.

• Is hot-swapping supported for this module during active CPU operation?

  No, CJ Series backplanes require system power down prior to physical removal or insertion of Special I/O Units.

• How is channel-to-channel isolation handled within the hardware?

  Photocoupler galvanic isolation isolates input channels from the internal backplane logic and digital outputs.

• What control modes are supported by the integrated loop processor?

  The hardware supports standard 2-PID control with autotuning or basic ON/OFF control logic configuration.

• What cable type is required for thermocouple inputs?

  Use specified thermocouple compensation wires matching the selected sensor calibration type up to the terminal block.

• Where are PID parameters and setpoints stored within the PLC memory?

  Parameters map automatically into allocated Special I/O Unit memory areas (DM Area) assigned by unit number settings.