GE IS200VCRCH1B Discrete I/O Board for Mark VI Turbine Control

GE IS200VCRCH1B Contact Input/Relay Output Board 

Product Details:

The GE IS200VCRCH1B is a Discrete Input/Output board in the Mark VI Speedtronic system, functioning as a single-slot alternative to the VCCC board. It handles contact inputs and relay outputs, integrating with TBCI for 48 dry contacts and TRLYH1B relay boards with 12 magnetic relays.

Wired to the VME rack via molded plugs, it supports high-speed scanning for critical turbine variables and a 1 ms-resolution SOE recorder to track contact events. Compatible with both simplex and TMR systems, it uses optical isolators and 4 ms filters to suppress noise, ensuring reliable signal processing. It communicates via the VME backplane with the VCMI, enabling voting in TMR setups for fault tolerance.

Key Features:
Input/Output Capacity: Manages up to 48 dry contact inputs and 12 relay outputs, with configurable first 6 relays for dry contacts or solenoid control.

High-Speed Monitoring: Offers 1 ms scanning for critical variables and SOE recording to capture contact chatter and pulses ≥6 ms.

TMR Compatibility: Supports triple redundancy with JR1/JS1/JT1 connectors, enabling input voting via VCMI boards for fault tolerance.

Flexible Power: Relay outputs use 125V DC, 115V AC, or optional 24V DC with jumper-selectable fuses and on-board suppression.

Compact Design: Single-slot form factor with front-panel J33/J44 connectors and diagnostic LEDs (run/fail/status).

Reliability Features: Optical isolation, noise filters, and failsafe relay de-energization on cable disconnection or communication loss.