Power Generation & Turbine Control Solution — GE IS420YDOAS1B | Mark VI UCSB Controller
Where This Product Is Used
The GE IS420YDOAS1B is a UCSB (Universal Controller Signal Board) designed for GE’s Mark VI Turbine Control System. It is deployed across mission-critical industrial environments where precise turbine sequencing, protection, and control are non-negotiable:
- Gas Turbine Power Plants — Frame 5, Frame 6, Frame 7, Frame 9 turbine control panels
- Steam Turbine Generation — Combined-cycle and cogeneration facilities
- Oil & Gas Processing — Compressor trains, pipeline booster stations, and LNG terminals
- Petrochemical Plants — Rotating equipment protection and sequencing
- Industrial Utilities — Captive power plants and district energy systems
Engineers specify this board when upgrading aging Mark V panels to Mark VI architecture, or when replacing a failed UCSB in an existing Mark VI cabinet.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | IS420YDOAS1B |
| Series | Mark VI Turbine Control |
| Module Type | UCSB — Universal Controller Signal Board |
| Manufacturer | GE (General Electric) Energy |
| Form Factor | VME-based plug-in board |
| Communication | IONet Ethernet (Mark VI proprietary) |
| I/O Interface | Interfaces with VCMI, VTUR, VPRO, VSVO boards |
| Operating Voltage | 28 VDC (nominal, from Mark VI power supply) |
| Operating Temperature | 0°C to 60°C |
| Weight | Approx. 600 g |
| Firmware | Compatible with ToolboxST configuration software |
| Redundancy Support | TMR (Triple Modular Redundancy) and Simplex configurations |
Why Engineers Specify This Model
- Drop-in Mark VI compatibility — IS420YDOAS1B slots directly into existing Mark VI VME racks without backplane modification.
- TMR architecture support — Enables fault-tolerant triple-redundant control for high-availability turbine applications.
- ToolboxST integration — Fully configurable via GE’s ToolboxST software; no proprietary hardware programmer required.
- Proven field reliability — Widely deployed in GE Frame turbine fleets globally since Mark VI introduction.
- Reduced downtime — Board-level replacement restores turbine control without full panel changeout.
Complete System Bill of Materials
The IS420YDOAS1B operates within the Mark VI control cabinet ecosystem. Typical companion components include:
- IS420UCSBH1A / IS420UCSB1A — Alternate UCSB variants (verify revision compatibility)
- IS200VCMIH2B — VME Communication Module Interface
- IS200VPWRH1A — Mark VI Power Supply Board
- IS200VTURH1B — Turbine Protection Board
- IS200VSVO — Servo Control Board
- IS200TREGH1A — Terminal Board for regulation I/O
- DS200TCQAG1B — Analog I/O Terminal Board
Contact us with your full panel BOM for cross-reference and compatibility verification.
Compliance & Industry Standards
- Designed and manufactured to GE Energy internal quality standards for turbine control hardware
- Compatible with NERC CIP compliant control architectures (when integrated per site cybersecurity policy)
- Suitable for installations governed by IEC 61511 (Functional Safety — Safety Instrumented Systems) when applied within a validated SIS architecture
- RoHS-compliant board materials (verify revision-specific datasheet for exact compliance status)
Quality Assurance & Sourcing
At Konmask.com, every IS420YDOAS1B unit is processed through a structured quality workflow before shipment:
- ✅ Visual inspection — PCB, connectors, and component integrity check
- ✅ Functional power-on test — Board energized and communication verified where test fixtures permit
- ✅ Firmware revision documented — Revision level recorded and disclosed prior to shipment
- ✅ Anti-static packaging — ESD-safe bags, foam cushioning, and double-box carton
- ✅ Traceability — Serial number and inspection record retained on file
We source from decommissioned plant upgrades, authorized distributors, and verified industrial surplus channels. Counterfeit-risk screening is applied to all GE Mark VI boards.
How to Source This Part
- Add to cart and complete checkout — we ship globally via DHL Express, FedEx International, and UPS.
- Request a quote — For volume orders (>2 units) or urgent AOG (Aircraft/Asset on Ground) requirements, email support@konmask.com for priority pricing.
- Lead time — In-stock units ship within 1–2 business days. Out-of-stock units: 5–15 business days subject to sourcing.
- Export compliance — We handle EAR/ECCN classification and export documentation for international shipments.
Application-Specific FAQ
Q: Is IS420YDOAS1B compatible with both TMR and Simplex Mark VI configurations?
A: Yes. The UCSB board supports both TMR (three-board voting) and Simplex (single-board) Mark VI architectures. Confirm your panel configuration with your GE ToolboxST project file before ordering.
Q: Can this board be used as a direct replacement for IS420UCSBH1A?
A: The IS420YDOAS1B and IS420UCSBH1A are different revision/variant designations within the UCSB family. Functional compatibility depends on firmware revision and panel configuration. Contact us with your existing board’s label details for cross-reference confirmation.
Q: Do you provide a warranty?
A: Yes. We offer a 12-month warranty against manufacturing defects and functional failure under normal operating conditions. DOA (Dead on Arrival) units are replaced or refunded within 30 days of receipt.
Q: Can you supply the full Mark VI panel or just individual boards?
A: We supply individual boards, multi-board kits, and can assist with full panel BOM sourcing. Contact us with your complete requirements.
Q: What documentation is available?
A: We can provide GEH/GEI reference manual numbers upon request. Full GE technical manuals are available through GE’s authorized service network.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
