GE IS230STCIH4A – Contact Input Module | Mark VI Turbine Control Platform
Engineering Background: The IS230STCIH4A is a high-density contact input board designed for GE’s Mark VI turbine control system — one of the most widely deployed distributed control architectures in power generation and industrial turbomachinery. It serves as the primary interface for acquiring discrete on/off signals from field devices such as limit switches, relay contacts, and protective interlocks.
Product Positioning: Engineered for mission-critical environments where signal integrity and deterministic scan times are non-negotiable. This module is a direct replacement or spare for Mark VI-based gas turbine, steam turbine, and compressor control panels operating in power plants, LNG facilities, and petrochemical complexes worldwide.
Complete Technical Specifications
- Part Number: IS230STCIH4A
- Manufacturer: GE (General Electric / GE Vernova)
- Platform: Mark VI Turbine Control System
- Module Type: Contact Input (CI) I/O Board
- Form Factor: VME-style plug-in board
- Input Type: Dry contact / wet contact discrete inputs
- Communication: IONet (GE proprietary high-speed I/O network)
- Operating Voltage: 24 VDC (nominal field supply)
- Operating Temperature: 0°C to +60°C
- Weight: 0.38 kg
- Country of Origin: United States
- Compliance: CE, UL listed (per GE Mark VI system certification)
Proven Application Environments
- Gas turbine generator sets (Frame 6B, 7E, 7FA, 9E, 9FA)
- Steam turbine control panels (combined cycle and cogeneration)
- Industrial compressor and pump protection systems
- LNG liquefaction and regasification plant control
- Offshore platform turbomachinery control
- Refinery and petrochemical process safety systems
Engineering Advantages
- High Channel Density: Maximizes I/O capacity within the Mark VI rack, reducing panel footprint.
- Deterministic Scan: Synchronized with the Mark VI controller scan cycle for precise event timestamping.
- Redundancy Support: Compatible with TMR (Triple Modular Redundant) and simplex Mark VI configurations.
- Noise Immunity: Optical isolation on all input channels eliminates ground loop interference from field wiring.
- Hot-Swap Capable: Supports live replacement in redundant configurations without process shutdown.
System Architecture & Signal Flow
Field contact signals enter the IS230STCIH4A through the terminal board connector. Each channel passes through optical isolation circuitry before being digitized and transmitted over the IONet backplane to the Mark VI controller (VCMI/VCRC). The controller processes the contact states within its protection and sequencing logic, enabling sub-millisecond response to critical interlock conditions. In TMR configurations, three IS230STCIH4A boards vote in real time to eliminate single-point failures.
Sourcing & Quality Verification
- Inventory Status: In stock — ships within 1–3 business days
- Condition: Genuine OEM, refurbished-to-spec, or new surplus (confirmed at order)
- Testing: Each unit undergoes functional bench testing prior to shipment
- Warranty: 12-month replacement warranty against manufacturing defects
- Traceability: Full documentation package available upon request (test report, photos, CoC)
- Anti-Counterfeit: All units sourced from verified industrial dismantlers and authorized distributors
Procurement Process
- Submit RFQ via [email protected] or add to cart directly
- Receive proforma invoice within 4 business hours
- Payment: T/T, PayPal, credit card, or LC accepted
- Export documentation (commercial invoice, packing list, COO) provided for all international orders
- DHL / FedEx / UPS express available; sea freight for bulk orders
Technical FAQ
Q: Is IS230STCIH4A compatible with Mark VIe?
A: The IS230 series is native to Mark VI. Mark VIe uses IS420/IS410 series boards. Cross-compatibility requires engineering review — contact us before ordering.
Q: Can this module be used in a simplex Mark VI panel?
A: Yes. The IS230STCIH4A operates in both simplex and TMR Mark VI configurations.
Q: What terminal board does IS230STCIH4A pair with?
A: It pairs with the STCI terminal board (e.g., IS200STCIH2A or equivalent). Confirm your existing terminal board revision before ordering.
Q: Do you provide a test report?
A: Yes. A functional test report is available upon request at no additional charge.
Q: What is the lead time for bulk orders (5+ units)?
A: Typically 5–10 business days depending on stock. Contact us for volume pricing.
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