General Electric IS200STCIH2A Simplex Contact Input Terminal Board

The GE IS200STCIH2A Simplex Contact Input Terminal Board is a digital input interface module designed for use in GE Mark VI turbine control systems. It provides an efficient connection point for field contact inputs, such as limit switches, pressure switches, and other discrete signals used in turbine and industrial control applications.

This board supports reliable signal acquisition with optical isolation, noise filtering, and diagnostic capabilities, ensuring accurate detection of on/off states from critical field devices. The simplex design offers a cost-effective and robust solution for applications where single-channel digital input processing is required.

Product Specifications

Product Applications

• Turbine Control Systems: Monitors discrete signals from limit switches, pressure switches, and interlocks.

• Generator Protection: Captures critical status inputs to trigger safety and shutdown mechanisms.

• Industrial Process Automation: Acquires digital inputs from sensors, actuators, and machine interfaces.

• Oil & Gas Facilities: Interfaces with contact closures in pipeline and process monitoring systems.

• Power Generation Plants: Integrates contact signals into Mark VI systems for plant-wide safety and control.

• Chemical and Petrochemical Plants: Monitors discrete process control signals in hazardous environments.

• Factory Automation: Provides reliable digital input acquisition for machine and system control.

Product Advantages

• High Channel Density: Supports 32 isolated digital input channels on a single board.

• Robust Isolation: Optical isolation ensures signal integrity and protects against noise and ground loops.

• Wide Voltage Range: Accepts a 24 VDC nominal input range suitable for industrial control systems.

• Programmable Filtering: Debounce filtering prevents false triggering from transient signals.

• Fast Response: <2 ms input response time ensures accurate real-time monitoring.

• Diagnostics: Integrated per-channel monitoring aids maintenance and troubleshooting.

• Compact Design: Space-efficient form factor for control panel installations.

• Seamless Integration: Designed specifically for GE Mark VI turbine control architecture.

FAQ

1. How many digital input channels are available on the IS200STCIH2A?

   The board provides 32 optically isolated digital input channels.

2. What input voltage range does the module support?

   It is designed for 24 VDC nominal inputs with an operating range of 18–32 VDC.

3. Are the inputs optically isolated?

   Yes, both channel-to-channel and channel-to-system optical isolation are provided.

4. Can the IS200STCIH2A handle both dry and wetted contacts?

   Yes, it is compatible with both dry contact closures and wetted contacts.

5. What is the typical input current per channel?

   The board draws approximately 6–8 mA per channel.

6. Does the board include debounce filtering?

   Yes, it has programmable hardware and software debounce filtering options.

7. What is the input response time for the IS200STCIH2A?

   The typical response time is less than 2 milliseconds.

8. How are the field wires connected?

   The module uses screw terminal blocks for secure and reliable wiring.

9. Is the IS200STCIH2A compatible with redundant Mark VI configurations?

   Yes, it integrates with both simplex and redundant Mark VI architectures.

10. Does the board provide diagnostics for each channel?

    Yes, it includes per-channel health and status monitoring to aid troubleshooting.