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3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Function | VME bus processor for control logic |
| Series Compatibility | Mark V turbine control systems |
| Architecture | VME-based processing |
| Operating Temperature | -30 to 65°C |
| Power Requirements | Backplane powered |
| Application | Real-time turbine control and sequencing |
| Board Type | DS200VPBL series |
| Redundancy Support | TMR configurations |
| Memory/Processing | Onboard processing for control algorithms |
| Connectivity | VME bus interface to other Mark V cards |
4. Product Introduction
The GE DS200VPBLG2A is a VME Processor Board used in GE Speedtronic Mark V turbine control systems. It executes core control logic, sequencing, and real-time processing for gas and steam turbine operations.
This board integrates into the VME rack architecture of the Mark V system to handle data processing from I/O boards and issue commands to actuators and auxiliary systems. It provides the computational backbone that supports reliable turbine startup, load control, and protective functions across redundant setups.
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Controller not booting | Power or board failure | ✅ High | Check rack power LEDs and VME bus status | Replace DS200VPBLG2A if other boards power up normally |
| Communication loss with I/O | Bus or processor fault | ✅ High | Use diagnostic software to ping VME nodes | Verify cabling; replace processor board |
| Intermittent control faults | Overheating or memory issue | ✅ Medium | Monitor cabinet temperature and board status | Improve cooling; replace if faults follow board |
| No response to operator commands | Software load or hardware failure | ✅ High | Check diagnostic buffer for processor errors | Reload configuration or replace board |
| TMR voting mismatch | Processor sync issue | ✅ Medium | Compare data across redundant processors | Isolate and replace faulty processor board |
Contact technical support with system diagnostic logs, VME status, and error codes for further assistance.
- DS200VPBLG2A
- DS200VPBLG2A
6. Frequently Asked Questions (FAQ)
Is the DS200VPBLG2A hot-swappable? No, especially in non-redundant setups. In TMR configurations, individual processors may allow replacement with proper procedures, but always follow GE lockout/tagout and system manual guidelines to avoid process disruption.
What is the condition of this unit? New Original / New Surplus. Boards are inspected, powered on, and functionally tested in a Mark V VME rack environment prior to packaging. Test records available.
Will this board drop in as a replacement? Yes in most Mark V systems. Confirm your rack configuration and software version. Document all existing settings and software loads before removal. Firmware or configuration restoration may be required after swap.
How do you test the board? We install the board in a test Mark V rack, verify VME bus communication, run processor diagnostics, simulate I/O signals, and confirm control logic execution. Burn-in testing ensures stability under load.
Does it require specific software or firmware? Yes. The board works with Mark V control software. You may need to load the correct application code and configuration files after installation. We recommend using GE-approved tools for this process.
What warranty applies? Full 1-year warranty on parts and functionality. Warranty excludes damage from ESD, incorrect installation, or operation outside environmental specifications.
How do I handle firmware version differences? Match the firmware to your existing system to prevent compatibility problems. Take note of the current version before swapping. We can provide details on the firmware present on the supplied board upon request.
