Description

Designed for high-accuracy thermal monitoring in industrial automation environments, the Delta Electronics AH08TC-5A is an 8-channel analog input module engineered for thermocouple temperature acquisition. This module integrates seamlessly into Delta AH-series PLC backplanes, enabling precise temperature measurements across a broad range of industrial applications. To maintain system reliability under changing process conditions, it features built-in PID loop control capabilities, allowing localized temperature regulation directly on the module.

The AH08TC-5A features high-density terminal blocks and is designed to handle multiple thermocouple types and low-voltage analog signals. It incorporates robust channel diagnostics, sensor disconnection detection, and a hot-swapping function that minimizes system downtime during maintenance or replacements. The fully isolated signal design protects the core control logic from electrical disturbances, ensuring stable performance in demanding industrial settings.

Features

• 8 independent input channels supporting multiple standard thermocouple types and low-voltage ranges.
• Effective 16-bit analog-to-digital resolution, delivering precise temperature increments of 0.1 degC or 0.1 degF.
• Built-in PID control algorithm to facilitate localized closed-loop temperature control.
• Hot-swap functionality allows module replacement without interrupting the master PLC program or system operation.
• Fast channel conversion speed of 200ms per channel for responsive temperature feedback.
• Disconnection detection alerts operators instantly to failed sensors or broken wiring.
• Signal isolated design minimizes common-mode noise and ground loop interference.
• Removable JIS terminal block design simplifies wiring, configuration, and field maintenance.

Applications

• Plastic injection molding and extrusion machinery thermal profiling.
• Industrial furnaces, ceramic kilns, and heat-treating ovens.
• Boiler and steam temperature monitoring in power generation facilities.
• Environmental chambers and commercial HVAC system control.
• Petrochemical, oil, and gas process vessel temperature monitoring.

Technical Specifications

Installation Guidelines

• Mounting: Mount the module securely onto the AH-series PLC backplane. Ensure the locking mechanisms are fully engaged.
• Wiring: Route thermocouple extension wires away from high-voltage cables, AC motor drives, and switching inductive loads to prevent electromagnetic interference.
• Shielding: Use shielded thermocouple cables and ground the shield at a single point, preferably at the control panel ground.
• Terminal Block: Ensure all connections on the removable JIS terminal block are tightened to the specified torque to prevent contact resistance errors.
• Hot-Swapping: While hot-swapping is supported, refer to the PLC system manual for specific safety procedures to avoid transient voltage surges.