The Omron NX-TC3408, also cataloged as the NX-TC3408 Temperature Control Unit, operates as a dedicated hardware component for multi-loop thermal processing and proportional analog loop drive execution within the NX I/O Bus system.

Model Nomenclature & Parameter Breakdown

• NX: Modular Sysmac I/O platform hardware classification
• TC: Dedicated temperature control module functional class
• 3: 24 mm module housing width profile
• 4: 4-loop temperature control capacity
• 08: Universal thermocouple/Pt100 inputs with 4 to 20 mA / 0 to 20 mA linear analog current outputs

Technical Specifications Summary

Deterministic Bus Updating & Flash Firmware Integration

The unit provides 50 ms/unit conversion speed to sustain precise PID temperature loops across processing channels. High-speed backplane synchronization maintains backplane bus communication velocity Licences during high-density I/O density scaling routines across the NX bus coupler. Internal firmware flash compatibility ensures zero-drift analog signal processing during dynamic controller operations.

Delivery Package Components

• 1 x NX-TC3408 Temperature Control Unit Base Module
• 2 x Removable Push-in Plus Terminal Blocks
• 1 x Terminal Wiring Map Label Sheet

Panel Installation & Field Wiring Directives

Mounting Configuration

• Hook the upper mounting claw onto a standard 35 mm DIN rail and push the module flush into the adjacent NX I/O bus unit until the side locks engage.
• Maintain a minimum vertical clearance of 30 mm above and below the housing to facilitate airflow and cable egress.

Wiring & Insulation Guidelines

• Strip solid or ferruled wires to 10 mm and insert directly into the Push-in Plus terminals without screw tools.
• Utilize shielded twisted-pair cables for thermocouple and RTD wiring, grounding the outer cable shields to a low-impedance functional earth ground bar.

Technical Inquiry Resolutions

• What temperature sensors are compatible with the input channels?

  Channels support thermocouples (B, C, E, J, K, L, N, P, R, S, T, U) and resistance thermometers (Pt100, JPt100).

• What output signal types are provided for temperature control drives?

  The unit provides 4 linear analog current outputs configurable for either 0 to 20 mA or 4 to 20 mA.

• What is the loop update rate for the 4-channel temperature control?

  The module features a high-speed conversion rate of 50 ms per unit across all 4 control loops.

• Are individual temperature input channels galvanically isolated?

  Yes, the input circuit architecture features channel-to-channel isolation to eliminate ground loop noise.

• Can terminal blocks be detached without disconnecting field wiring?

  Yes, the module includes two removable Push-in Plus terminal connectors for rapid maintenance swap-outs.

• What resolution scaling is provided on the analog output stage?

  The 14-bit D/A conversion stage provides a fine output resolution ratio of 1:10000.

• Does the unit require external power for internal logic?

  Internal circuit logic draws operation power directly from the NX bus power supply rail at 1.85 W max.

• Is hot-swapping permitted on the NX bus backplane?

  The NX bus power supply must be completely switched off prior to installing or removing the unit module.