Product Description

Overview

The GE IS200VAICH1DAA is a high-density Analog Input/Output (I/O) board designed for the Mark VI Speedtronic system. This VAIC board provides a reliable interface between field sensors and the VME-based control rack, delivering precise and high-speed analog signal acquisition for gas and steam turbine monitoring and control. It supports both current and voltage signals, making it adaptable to a wide range of industrial transmitters.

Technical Specifications

Performance Features

Flexible Signal Handling: Each channel can be individually configured via software for voltage or current input, allowing integration with a variety of sensors measuring pressure, flow, temperature, or level.

High-Resolution Conversion: 14- to 16-bit A/D converters ensure precise measurement of small signal variations for accurate turbine control.

Real-Time Processing: Capable of sampling all channels at high speed to meet the demands of critical turbine monitoring applications.

Fault-Tolerant Design: Fully supports TMR architectures, ensuring the highest level of reliability in safety-critical applications.

Diagnostic Capability: Continuous monitoring detects open circuits, out-of-range signals, and internal faults, with status reported to the control system.

Electrical Protection: Robust isolation protects the VME bus from electrical surges and electromagnetic interference from turbine hall environments.

Applications

• Pressure Monitoring: Fuel, lube oil, and compressor discharge pressures.

• Flow Measurement: Fuel and cooling water flows.

• Valve Position Tracking: Interfaces with LVDTs/RVDTs for servo-valve position feedback.

• Level Sensing: Monitors tanks for water-wash and oil-sump systems.

FAQ

Q: Can this board operate in both simplex and TMR configurations?
A: Yes, the IS200VAICH1DAA supports simplex, dual, and triple modular redundant configurations.

Q: How do I ensure compatibility when replacing the board?
A: Verify firmware version compatibility and configure jumpers/DIP switches to match the previous setup.

Q: What types of signals can the board accept?
A: The board supports 4-20 mA current loops, 0-1 mA, ±5 V, and ±10 V voltage inputs.

Q: Can this board drive high-load analog outputs?
A: Yes, it supports higher load resistances with up to 18 V at the terminal board.