Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE (General Electric) |
| Model | IS215UCVEH2A |
| Product Type | VME Controller Card |
| Series | Mark VI Speedtronic |
| Processor | Intel Celeron 300 MHz |
| DRAM | 32 MB |
| Flash Memory | 16 MB or 128 MB (revision dependent) |
| Operating System | QNX Real-Time Operating System |
| Primary Ethernet | 10BaseT/100BaseTX RJ-45 |
| Serial Interface | COM1 RS-232C (COM2 on some variants) |
| Power Requirement | +5 V DC, 6 A typical, 8 A maximum |
| Installation | Single-slot VME Rack |
| Operating Temperature | -30 °C to +65 °C |
| Typical Applications | Gas Turbine, Steam Turbine, Generator Control |
The IS215UCVEH2A is the standard UCVE controller used in GE Mark VI turbine control systems. Certain UCVEM variants provide additional Ethernet ports, Profibus, or other communication interfaces. Always verify the exact hardware revision before replacement.
Product Introduction
The GE IS215UCVEH2A is a VME Controller Card designed for the GE Mark VI Speedtronic control platform. It performs real-time control processing, system communications, and network management for gas turbines, steam turbines, and industrial power generation systems.
Powered by a 300 MHz Intel Celeron processor running the QNX real-time operating system, the controller delivers deterministic control performance while supporting Ethernet communications, serial interfaces, and integration with the GE Toolbox engineering environment. It serves as the primary processing unit for many Mark VI control cabinets.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| STATUS LED remains off | Missing +5 V rack power | ✅ High | Measure +5 V DC at the VME backplane | Verify rack power before replacing the controller |
| Controller not detected | Loose VME connection | ✅ High | Reseat the board and inspect edge connectors | Clean connectors and retest |
| Ethernet communication lost | Network configuration or cable failure | ✅ High | Verify Link/Activity LEDs and RJ-45 connection | Check network configuration and replace cable if necessary |
| Continuous controller reboot | Corrupted Flash memory or unstable power | ✅ High | Review diagnostic logs and monitor supply voltage | Confirm stable power before replacing hardware |
| Toolbox cannot connect | IP address or subnet mismatch | ⚠️ Medium | Verify Ethernet configuration using Toolbox | Correct network settings before replacing the module |
| Random controller alarms | Firmware revision mismatch | ⚠️ Medium | Compare firmware revision with the original controller | Install the correct firmware-compatible replacement |
Field Tip: The UCVE controller is often suspected when communication stops, but many faults originate from unstable rack power, Ethernet configuration errors, or VME connector contamination. Before replacing the IS215UCVEH2A, save the controller configuration, record the firmware revision, and inspect the rack power rails. These steps can eliminate unnecessary controller replacement.
- IS215UCVEH2A
- IS215UCVEH2A
Frequently Asked Questions (FAQ)
Q1. What is the primary function of the ?
The is the primary VME controller for GE Mark VI systems. It executes turbine control logic, manages communications, and interfaces with field I/O and engineering software.
Q2. Which processor does this controller use?
The standard UCVEH2 controller uses an Intel Celeron 300 MHz processor with 32 MB DRAM and Flash memory for firmware storage.
Q3. Does the controller support Ethernet communication?
Yes. The standard controller includes a 10/100 Mbps Ethernet interface for communication with the Unit Data Highway (UDH) and GE Toolbox. Some UCVEM variants add secondary Ethernet ports and Profibus support.
Q4. Can the be replaced while the system is powered?
No. The controller is not hot-swappable. Shut down the control cabinet, follow lockout/tagout procedures, and use an ESD wrist strap before removing or installing the module.
Q5. Is this product supplied as new or refurbished?
This listing refers to New Original (New Surplus) inventory unless otherwise specified. Every controller should undergo identification verification, power-on testing, communication checks, and ESD-safe packaging before shipment.
Q6. What inspections should be completed before shipment?
A recommended quality inspection includes:
- OEM part number and serial number verification
- Anti-counterfeit and traceability inspection
- Visual inspection for corrosion, repairs, or damaged components
- Power-on verification in a compatible Mark VI VME rack
- Ethernet and serial communication testing
- STATUS LED and diagnostic verification
- Final anti-static packaging with QC documentation
Test reports and inspection photographs should be available upon request.
Q7. What is the most common installation mistake?
The most common issue is replacing the controller without backing up the existing configuration or verifying the firmware revision. Before removing the original UCVE controller, save the Toolbox configuration, document the IP settings, and photograph all cable connections. These simple precautions significantly reduce commissioning time and prevent communication issues after startup.






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