GE IS200TRLYH1BGF Relay Terminal Board for Mark VI Turbine Control

The GE IS200TRLYH1BGF is a relay output board in the Mark VI Turbine Control System, controlled by VCCC, VCRC, or VGEN boards, supporting both simplex and TMR configurations. It connects to the VME rack via molded plug cables—using JA1 for simplex setups and JR1/JS1/JT1 for TMR systems. Housing 12 plug-in magnetic relays, it offers flexible outputs: the first 6 are jumper-configurable for dry Form-C contacts or external solenoid control, relays 7–11 provide unpowered isolated Form-C contacts, and relay 12 is specialized for applications like ignition transformers.

Physically, the rectangular board features two long black terminal blocks, vertical relays with transparent covers, transistors, red MOVs, blue capacitors, and integrated circuits. As part of the legacy Mark VI series, it ensures reliable performance in industrial turbine control, despite being discontinued.

Features:
Relay Flexibility: 12 relays with configurable outputs ,6 for dry contacts/solenoids, 5 dedicated dry contacts, 1 specialized for ignition transformers.

Power Versatility: Supports 125V DC, 115/230V AC, and optional 24V DC, with jumper-selectable fuses and on-board suppression for safety.

Redundancy Support: Integrates with TMR systems via multiple connectors, ensuring fault tolerance in critical applications.

Fault Detection: Monitors relay excitation loss, coil current discrepancies, and communication failures, triggering alerts or de-energizing relays for safety.

Durable Design: Robust components (MOVs, transistors) and industrial-grade construction ensure longevity in harsh turbine environments.

System Compatibility: Seamlessly works with Mark VI controllers, enhancing control flexibility in gas/steam turbine automation.