Description

Product Description

The IC693TCM302 is an 8-channel Temperature Control Module (TCM) designed for the GE Fanuc Series 90‑30 PLC. It combines precise thermocouple measurement with PWM relay output control, enabling both closed-loop PID and open-loop temperature regulation across eight independent zones in a single slot.

This module supports multiple thermocouple types, features automatic cold-junction compensation, and provides comprehensive diagnostics including open-thermocouple detection, reverse-polarity protection, and out-of-tolerance alarms. Its high-speed PWM outputs allow efficient control of heaters, ovens, and other temperature-dependent processes.

Key Features

• 8 independent thermocouple input channels with 12-bit resolution

• PWM relay outputs per channel for precise temperature control

• Closed-loop PID and open-loop manual control modes

• Automatic cold-junction compensation for accurate measurements

• Comprehensive diagnostics: open thermocouple, reverse polarity, out-of-tolerance alarms

• Front-panel LED indicators: PWR, RUN, FAULT, SHORT, plus 8 output status LEDs

• Single-slot installation in Series 90‑30 baseplates

Technical Specifications

Inputs

• Channels: 8 thermocouples

• Supported Types: J, K, L (some models R, S, B, T, E, N)

• Resolution: 12-bit (~0.2 °C)

• Accuracy: ±1 °C with auto-calibration

• Temperature Ranges:

• J: 0–450 °C

• K: 0–600 °C

• L: 0–450 °C

• Thermocouple Impedance: Max 30 Ω

• Cold Junction: 1 RTD channel or external reference

Outputs

• Channels: 8 PWM relay outputs

• Voltage: 18–30 VDC

• Load Current: 100 mA per channel

• Off-State Leakage: 0.1 mA max

• PWM Period: 0.1–60 s programmable

• Overload Threshold: 700 mA typical (≥2 ms)

Power Requirements

• Backplane Power: 150 mA @ +5 VDC

• External Power: 18–36 VDC for outputs (2.5 A inrush)

• Internal Fuse: 2 A, 125 V

Mechanical & Environmental

• Dimensions: 127 × 76.2 × 152.4 mm (5 × 3 × 6 in)

• Weight: 0.24 lbs

• Mounting: Single-slot Series 90‑30 baseplate

• Operating Temp: 0–55 °C

• Storage Temp: –40–85 °C

• Humidity: 5–95% non-condensing

• Protection Class: IP20

Applications

• Multi-zone industrial temperature control

• Plastics molding and extrusion

• Ovens, kilns, and furnaces

• Packaging and sealing machinery

• Food processing and precise thermal regulation

FAQ

Q: Can the IC693TCM302 handle all thermocouple types?
A: It supports J, K, L thermocouples natively; related models may support R, S, B, T, E, N types.

Q: How is temperature output controlled?
A: Each channel uses PWM relay outputs, configurable for 0.1–60 s periods, suitable for heaters or valves.

Q: Can this module operate in open-loop mode?
A: Yes, open-loop manual control is supported alongside PID closed-loop control.

Q: What diagnostics are included?
A: Detects open thermocouples, reverse connections, out-of-tolerance conditions, and output shorts.

Specifications

• Brand: General Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems