Description
The GE General Electric IS215VPROH2B is an advanced VME Protection Assembly and Emergency Turbine Protection Board (VPRO) designed specifically for the Speedtronic Mark VI distributed control system architecture. Engineered for high-reliability gas and steam turbine management, this module provides an independent emergency overspeed protection system. Operating within a triple redundant configuration (R8, S8, and T8), it handles critical safety functions, controls trip solenoids, and manages emergency stops to ensure absolute operational safety.
📊 Technical Specifications
- 1. Part Number: IS215VPROH2B
- 2. Product Series: Speedtronic Mark VI Distributed Control System
- 3. Module Type: VME Protection Assembly / Emergency Turbine Protection Board (VPRO)
- 4. Application: Emergency Overspeed Protection and Turbine Safety Control
- 5. Redundancy Setup: Triple Modular Redundant (TMR) — R8, S8, and T8
- 6. Power Supply Input: 125 V dc (70–145 V dc range from cabinet PDM)
- 7. Generated Voltages: 5 V dc and 28 V dc
- 8. Communication Interfaces: IONet Ethernet connection, parallel port, and D-shell diagnostic ports
- 9. Operating Temperature: 0°C to 65°C
- 10. Country of Origin: United States
📖 Usage Instructions
Ensure strict compliance with electrostatic discharge (ESD) safety protocols by wearing a properly grounded wrist strap before handling the protection assembly board. Power down the respective protection module completely prior to installation or replacement. Carefully slide the IS215VPROH2B board into its designated slot within the TMR protection rack, verifying smooth alignment without applying excessive force. Secure the module using the retaining screws, connect the required terminal board cables (TPRO/TREG), and use GE’s ToolboxST software suite to verify communication links and system diagnostics before commissioning.
❓ Frequently Asked Questions
- Q: What is the primary function of the IS215VPROH2B assembly?
A: It serves as an independent emergency overspeed protection (EOS) and safety trip module for gas and steam turbines, operating separately from the primary control system.
- Q: Can individual boards be replaced while the turbine is running?
A: Yes. Because the protection module utilizes a triple-redundant architecture (R8, S8, and T8), any single VPRO board can be powered down and replaced during live operation without jeopardizing system safety.
💡 Recommended Alternative Models
- GE IS215VPROH1B
- GE IS215VRTCH1A
- GE IS215UCVEH1A
- GE IS220UCSAH1A
- GE IS420UCSCH1A
- GE IS215PPCH1A
- GE IS215DRCCH1A
- GE IS215STAMH1A
- GE IS215TBCIH1C
- GE IS215ACLEH1A


