GE IS200VRTDH1DAB – VME RTD Input Card for Mark VI Systems

Overview

The IS200VRTDH1DAB is a VME Resistance Temperature Detector (RTD) input card developed by General Electric (GE) for the Mark VI Speedtronic Turbine Control System. It plays a critical role in monitoring turbine temperatures by converting analog RTD signals into digital values. These temperature readings are then used for real-time turbine diagnostics and control.

Key Functions

• RTD Excitation and Signal Capture
• Digital Conversion of Analog Signals
• Temperature Monitoring and Fault Detection
• Automatic Reinstatement of Out-of-Range RTDs
• Supports Triple Modular Redundancy (TMR)

Notable Features

• Detects open and short circuit conditions
• Automatically removes faulty RTDs from scanning to avoid impact on other channels
• Auto or manual reinstatement of RTDs once readings return to range
• Includes two VME backplane connectors for communication with the controller and VCMI
• Equipped with voltage-limiting components for circuit protection
• Faceplate has diagnostic indicators and is mounted with three screws
• Backed by conformal coating and reliable multi-layer PCB design

Hardware Specifications

Application

This board is used to interface RTD sensors in turbine environments. It captures precise temperature data for critical turbine components, helping operators prevent overheating, identify anomalies, and maintain turbine performance.

Compatibility

Works with Mark VI VCMI communication modules and is compliant with GEH-6421 (Vol II) system specifications. Typically used in GE’s gas and steam turbine automation systems.

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