IS200TRLYH1D | General Electric Mark VI | Relay Output Terminal Board

GE IS200TRLYH1D Relay Output Terminal Board

The GE IS200TRLYH1D, also cataloged as the IS200TRLYH1D relay output terminal board, serves as the primary TRLY module used to execute Form‑C relay switching and solenoid‑drive output behavior across Mark VIe distributed control platforms.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks

As part of GE’s Mark VIe control architecture, the IS200TRLYH1D aligns with deterministic I/O behavior governed by the controller’s QNX‑based execution cycles. Relay actuation timing remains fixed relative to backplane scheduling, and solenoid‑drive outputs maintain predictable propagation delay. Firmware flash compatibility resides entirely in the associated I/O pack; the TRLY board itself contains no programmable logic. I/O density scaling is achieved through jumper‑selectable configurations for dry contacts, solenoid drive, and isolated Form‑C outputs, ensuring consistent mapping across simplex installations.

Frequently Asked Questions

Q: Can the IS200TRLYH1D be replaced while energized? A: No. Relay boards must be removed only with cabinet power isolated to prevent unintended contact transitions or solenoid activation.

Q: Does the board impose additional backplane load? A: The TRLY board is a passive termination assembly. It does not introduce backplane current draw beyond the relay coil supply routed through field wiring.

Q: How does configuration affect relay behavior? A: Jumper positions determine whether the first six relays operate as dry Form‑C contacts or solenoid‑drive outputs. ToolboxST defines logical mapping but does not alter physical jumper settings.

Field Installation Guidelines

• Maintain separation between relay wiring and high‑energy conductors to reduce induced noise on coil‑sensing circuits.
• Verify jumper settings for relays 1–6 before commissioning to ensure correct dry‑contact or solenoid‑drive configuration.
• Use chassis‑grounded shield termination for all solenoid wiring to minimize transient spikes.
• Ensure plug‑in magnetic relays are fully seated in their sockets and retainers.
• Confirm proper fuse selection when using 24 V dc solenoid power.
• Inspect all terminal screws for secure engagement to avoid intermittent Form‑C contact behavior.