Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE Fanuc / GE Industrial Systems |
| Model | IS215UCVGH1A C |
| Alternate Models | VMIVME-7666-111000 / 350-017666-111000 C |
| Product Type | VME Embedded Controller Board |
| System Platform | GE Mark VI Speedtronic |
| Processor | Intel Ultra Low Voltage Celeron 650MHz |
| Memory | 128MB SDRAM |
| Flash Memory | 128MB |
| Operating System | QNX Real-Time Operating System |
| VME Interface | Single-slot VMEbus |
| Ethernet Ports | Dual Ethernet interfaces |
| Serial Interface | Dual COM ports |
| Display Interface | SVGA output |
| USB Interface | Dual USB ports |
| Front Panel | Reset switch, status LEDs, communication connectors |
| Mounting | VME rack chassis |
| Application | Turbine controller, industrial embedded control |
Product Introduction
GE IS215UCVGH1A C VMIVME-7666-111000 Overview
The GE IS215UCVGH1A C VMIVME-7666-111000 is a VME embedded controller board used in GE Mark VI Speedtronic turbine control systems. It provides the processing platform for turbine application software, system communication services, and interaction with VME-based control hardware.
The GE IS215UCVGH1A C is designed for installed Mark VI control cabinets where controller continuity is critical. Its single-slot VME architecture, onboard memory, Ethernet interfaces, and real-time operating environment make it suitable for turbine and rotating equipment control applications. Replacement requires verification of software image, firmware revision, and cabinet configuration.

IS215UCVGH1A
Application Scenarios & Field Pitfalls (The Engineer’s Perspective)
Engineering Pain Point
A gas turbine trips during operation, but field sensors and I/O modules show normal status. The investigation eventually points toward the controller layer.
This is common with legacy turbine control systems. A controller board failure does not always look like a hardware failure. Communication loss, application loading problems, or memory-related faults can appear as random system alarms.
The IS215UCVGH1A C is the execution platform for the Mark VI control application. Hardware replacement is only one part of the recovery process.
Typical Applications
- Gas Turbine Power Plants – Turbine sequencing, startup control, fuel management, and protection logic execution.
- Steam Turbine Systems – Speed regulation, valve control, and auxiliary equipment coordination.
- Industrial Compressor Stations – Turbine-driven compressor control and monitoring applications.
- Power Generation Service Facilities – Maintenance and replacement support for installed Mark VI control cabinets.
Technical Pitfalls to Avoid
- Confirm Application Software Compatibility
The replacement controller must match the installed Mark VI software environment. A board that boots correctly may still fail to run the original turbine application.
- Verify Memory and Firmware Revision
UCV controller variants may look similar but contain hardware and firmware differences. Confirm the exact suffix, including the revision letter.
- Inspect VME Rack and Power Conditions
Controller faults are sometimes caused by backplane contact issues, unstable rack power, or grounding problems. Check the complete controller environment before replacing the board.
Related Products
- GE IS215UCVEM09A / VMIVME-7698
Earlier UCV controller family module used in Mark VI systems. Similar function but different processor and hardware generation. - GE IS215UCVEM09B
Updated UCV controller variant. Verify software compatibility before using as a replacement. - GE IS215UCVEH2AE
Mark VI UCV controller module with similar embedded processor functionality for turbine control applications. - GE IS215VCMIH2CA
VME communication interface board used in Mark VI systems for controller-to-I/O network communication. - GE IS215VCMIH2BB
Related VCMI communication module variant used in Mark VI control cabinets. - GE IS200VCMIH2CAA
Earlier Mark VI communication interface board used in VME-based turbine control architectures. - GE IS215UCVGM06A
Another UCV controller family board used in GE Speedtronic applications with different hardware configuration. - GE VMIVME-7666 Series
Embedded VME controller family used as the hardware foundation for several industrial control applications.
