IS400TCASH1AGD – Core Analog I/O Terminal Board
The IS400TCASH1AGD is a terminal board for GE Mark VIe control systems. It connects directly to PCAA I/O packs and routes signals to BCAA/BCAB processing boards. This board accepts 28 V control power via the P5 connector and provides power through P4 to a JGPA board for cable shield termination. It supports simplex redundancy and works with TCAT boards via P1/P2 68‑pin connectors.
Oiltech Controls’s Insight
- This board is rare and designed specifically for Mark VIe turbine control retrofits.
- No DIN‑rail mount – uses direct chassis attachment for rugged stability.
- Field proven in harsh environments: -30°C to 65°C ambient without fans.
- Class 1 Division 2 hazardous location certified – safe for power plants and oil & gas.
- We recommend pairing with IS230PCAAH1A or IS230PCAAH1B for complete I/O solutions.
Technical Specifications at a Glance
- Part Number: IS400TCASH1AGD (GD variant)
- Product Type: Core Analog I/O Terminal Board
- Manufacturer: GE Energy
- Series: Mark VIe
- Power Input: 28 V control bulk (via P5 connector)
- Output to JGPA: P4 connector for cable shield termination
- Connectors: P1 & P2 (68‑pin) for TCAT cables
- Redundancy: Simplex configuration supported
- Certification: Class 1 Div 2, CE, RoHS
Environmental & Installation Details
- Temperature range: -30°C to +65°C (fanless operation).
- Mounting: Direct board attachment – no DIN rail.
- Use shielded twisted‑pair wiring for analog signals.
- Secure P5 power connection before energizing.
- Verify firmware compatibility with PCAA and BCAA boards.
Maintenance & Diagnostics
- On‑board LEDs indicate power and communication status.
- No routine calibration needed – solid‑state passive design.
- Visual inspection of P1/P2 pins recommended during installation.
- Fault isolation via connected I/O pack diagnostics.
Compatible Equipment & Systems
- Mark VIe turbine control systems (gas, steam, wind).
- Pairs with PCAA I/O packs and BCAA/BCAB processors.
- Works with TCAT terminal boards and JGPA shield boards.
- Suitable for power generation, oil & gas, and heavy industrial controls.
- Replaces legacy analog terminal boards in Mark VI upgrades.
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spares – deep inventory knowledge.
- Global logistics with FedEx, UPS, DHL – 24‑28 hour dispatch.
- Every unit tested and verified before shipping.
- 12‑month warranty covers material and workmanship.
- Expert support for obsolete GE, Modicon, and third‑party controls.
Professional FAQ – Expert Buying Guide
- Q: Can I use this board with a non‑Mark VIe system?
A: No. It is purpose‑built for Mark VIe architecture and uses proprietary pinouts. For other systems, consider terminal adapters (not included). - Q: How do I connect the 28 V power safely?
A: Use the P5 connector with a fused supply. Ensure the JGPA board is connected via P4 before power‑up to avoid floating shields. - Q: Is this board hot‑swappable?
A: Not recommended. Always de‑energize the rack before insertion or removal to prevent damage to the 68‑pin connectors. - Q: What is the difference between IS400TCASH1A and IS400TCASH1AGD?
A: The GD suffix indicates a specific functional revision and component lot. Both are electrically identical; GD variants are often found in later production batches. - Q: Which PCAA pack should I choose – A or B version?
A: Use IS230PCAAH1A for simplex applications. For enhanced diagnostics, choose IS230PCAAH1B. Both are fully compatible with this terminal board.
Shipping & Warranty Summary
- Dispatch: 24‑28 hours from order confirmation.
- Carriers: FedEx, UPS, DHL (global express).
- Warranty: 12 months against defects.
- Technical support via email or phone – we respond within 4 business hours.
Contact: info@oiltechcontrols.com | +86 158 8020 0923
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