GE DS200TCQCG1AJD – TCQC Discrete I/O/Trip Interface Board for GE Mark V (DS200) Cabinets

The GE DS200TCQCG1AJD is a Group 1 TCQC board used in Mark V/DS200 control panels. From my experience, TCQC acts as the discrete I/O and permissive/trip interface between the control core and the cabinet’s terminal hardware—sequencing start/stop chains, handling contact outputs, and returning status feedbacks deterministically. When these cards age, you might notice start‑permit chatter, delayed interlocks, or nuisance trip indications under heat or vibration. One thing I appreciate is the service‑friendly harness layout; it seems designed for a clean, like‑for‑like swap so you can keep the outage window tight and avoid rewiring.

Company’s Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in-stock; no more than one month at the latest
• Payment method: 50% advance payment; full payment for delivery
• Express delivery methods: FedEx / UPS / DHL
• Compatibility check: Share the cabinet nameplate and a clear photo of the TCQC label (DS200TCQCG1AJD). It typically locks the correct group/revision on the first pass.

Key Features

• Discrete I/O and trip interface – Routes contact outputs and reads permissive/status returns so interlocks behave consistently.
• Deterministic sequencing – Supports start/stop chains and trip paths with predictable timing across the control stack.
• Group G1, revision AJD – Hardware group and revision matching matter; we’ll verify fit against your panel build.
• Drop‑in replacement – Like‑for‑like spare that usually preserves harness routing and parameterization.
• Service‑friendly design – Keyed headers, labeled connectors, and accessible standoffs keep swap time short.
• Lifecycle extension – Practical way to stabilize legacy Mark V systems without moving to a full retrofit project.

Technical Specifications

Application Fields

Typically installed in GE Mark V turbine control panels and DS200‑based exciter/drive cabinets across power generation, oil & gas compressor stations, paper & converting, metals processing, and marine applications. A common scenario is intermittent start‑permit drops or sticky interlocks after heat soak—swapping DS200TCQCG1AJD often restores stable discrete I/O behavior without touching PLC logic or field wiring.

Advantages & Value for Procurement

• Reliability – Brings back clean interlock timing and consistent trip/permissive handling, reducing nuisance alarms.
• Compatibility – Purpose‑built for DS200/Mark V; we confirm group (G1) and revision (AJD) to match your panel.
• Cost control – Board‑level maintenance is typically far cheaper than a cabinet retrofit and shortens re‑commissioning.
• Predictable downtime – Drop‑in mechanics and labeled connectors keep the changeout inside a tight outage window.
• Technical backup – Support on harness mapping, revision matching, and post‑swap checks to keep risk low.

Installation & Maintenance

• Cabinet environment – Clean, dry, ventilated enclosure; ambient 0…55 °C; avoid condensation and conductive dust.
• Safety & isolation – Lockout/tagout, wait for DC bus discharge, and verify zero energy before handling.
• ESD precautions – Use an antistatic wrist strap; handle by PCB edges; avoid touching component pins.
• Harness seating – Mark positions, fully seat keyed connectors, and confirm PE/ground continuity and strain relief.
• Post‑swap checks – Validate permissives, interlock timing, and run a controlled start while monitoring alarms and logs.
• Routine care – Annual dust removal, connector inspection/re‑seating, and periodic log review; firmware tasks apply to companion control boards, not TCQC itself.

Quality & Certifications

• Used within CE‑conformant control systems; the board forms part of the certified assembly.
• UL recognition typically applies at the complete cabinet level.
• RoHS‑aligned materials/processes in many cases for GE electronic spares.
• Manufactured under ISO 9001 quality systems at the OEM level.
• Warranty: 12 months (365 days) against functional defects under normal operation.