ICS Triplex T8442 Trusted TMR Speed Monitor Module

Description

The ICS Triplex T8442 is a high-precision speed monitoring module integrated into the Trusted Triple Modular Redundant (TMR) safety platform. It is specifically engineered to provide SIL 3 rated overspeed and underspeed protection for rotating machinery such as turbines, compressors, and large industrial motors. By utilizing three independent processing channels, the T8442 performs complex frequency measurements and hardware-level voting to ensure that critical trip signals are executed with maximum reliability and zero single points of failure.

Specifications

• Manufacturer: Rockwell Automation / ICS Triplex

• Model Designation: T8442

• Country of Origin: United Kingdom

• Module Type: Trusted TMR Speed Monitor

• Input Channels: 3 or 6 independent frequency inputs (dependent on configuration)

• Frequency Range: 0.05 Hz to 50 kHz

• Measurement Accuracy: Better than 0.01% of full scale

• Operating Voltage: 24 Vdc via Trusted Backplane

• Power Consumption: 10 Watts (Typical)

• Net Weight: 1.10 kg

• Isolation: Galvanic isolation up to 50V continuous

Features

• Triple Modular Redundancy: Employs a fully triplicated internal architecture to provide continuous safety monitoring even in the event of a component failure.

• On-Board Signal Processing: Performs real-time frequency-to-digital conversion and acceleration calculations directly on the module to minimize system latency.

• Proximity Probe Compatibility: Supports a wide range of speed sensors including passive magnetic pickups and active proximity probes.

• Configurable Trip Logic: Allows for sophisticated voting patterns and setpoint management through the Trusted Toolset software.

• Continuous Self-Testing: Features automatic diagnostic routines that verify the integrity of the input circuitry and internal logic without interrupting the process.

• Hot-Swap Functionality: Enables the safe removal and replacement of the module under power, maintaining system availability and machinery protection.