ABB TU818

Product Introduction:
The ABB TU818 is a specialized terminal unit designed for the S800 I/O system. It serves as the interface base for analog input modules, providing optimized signal routing for precision measurement applications.

Category: SKU: ABB TU818

Description

ABB TU818

Technical Specifications:

  • System: ABB S800 I/O
  • Function: Analog Signal Termination
  • Module Compatibility: S800 Analog Input Modules

Functional Features:

  • Signal Integrity: Designed to minimize noise pickup for sensitive analog signals.
  • Shield Termination: Dedicated grounding points for cable shield management.
  • Hot-Swappable Support: Allows module replacement without disrupting the field wiring or backplane power.

Application Scenarios:
Process control environments requiring accurate acquisition of 4-20 mA, 0-10 V, or thermocouple signals.

Performance Parameters:

  • Channel Capacity: Supports standard 8 or 16-channel analog input modules.
  • Dielectric Strength: High isolation between field side and backplane.

Material Composition:
Industrial-grade PCB with precision gold-plated contacts and robust screw terminal blocks.

Structural Features:
Compact design with color-coded terminals and integrated DIN-rail mounting clips.

Working Principle:
Routes low-level analog signals from field transmitters to the input module while providing a solid ground reference for shielding to reject electromagnetic interference.

Installation Requirements:
Use shielded twisted-pair cables for all analog connections. Keep analog wiring separate from high-voltage power cables.

Usage Precautions:
Verify the module alignment before insertion. Ensure all shield connections are tight to prevent ground loops.