The GE IS215VPROH2BC is a critical turbine protection and emergency trip processor board used in the Mark VI Speedtronic control system. It is designed to execute high-speed safety logic, including overspeed protection, emergency shutdown (ESD), and trip signal coordination between turbine control and protection subsystems.
In modern power generation environments, this module acts as an independent safety layer, ensuring turbines are brought to a controlled shutdown immediately when abnormal operating conditions are detected. Its architecture is built around redundancy, speed, and deterministic response—three pillars of industrial turbine safety.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | General Electric (GE) |
| Model | IS215VPROH2BC |
| Series | Mark VI Speedtronic |
| Module Type | Turbine Protection / Emergency Trip Board |
| Functional Role | VPRO (Protection Processor) |
| Power Supply | 125 VDC |
| System Architecture | Simplex or Triple Modular Redundancy (TMR) |
| Frame Processing Rate | Up to 100 Hz |
| MPU Input Sensitivity | ≥ 27 mV peak @ 2 Hz |
| Trip Solenoid Support | Up to 6 solenoids (via TREG interface) |
| Response Time | ~0.1 sec solenoid actuation cycle |
| I/O Functions | Trip, interlock, E-stop, economizing relays |
| System Integration | VPRO + TREG + TPRO terminal boards |
| Operating Temperature | ~0°C to 60°C (industrial range) |
| Redundancy Isolation | Fully independent processing sections (X/Y/Z) |
| Dimensions | ~263 × 138 × 88 mm |
| Weight | ~2.35 kg |
The module is engineered to maintain turbine protection integrity even during partial system failure by isolating redundant channels and maintaining independent execution paths.
System Role & Functional Behavior
The IS215VPROH2BC operates as the central protection logic engine in the turbine safety chain:
- Collects speed and protection-related inputs
- Executes overspeed and fault detection logic
- Coordinates trip decisions across redundant channels
- Sends actuation commands to TREG terminal boards
- Drives emergency shutdown solenoids within milliseconds
In GE Mark VI systems, it is typically deployed with dedicated terminal boards (TPRO and TREG) to form a complete, independent turbine protection subsystem.
Recommended Related Modules
For full protection and control architecture, the IS215VPROH2BC is commonly paired with:
- IS215TREGH1B Turbine Emergency Trip Terminal Board
- IS215TPROH1B Protection Terminal Board
- IS200VAICH1C Analog Input Module
- IS200TVIBH2B Vibration Monitoring Board
- IS215UCVEM06A Control Processor Module
These modules ensure coordinated sensing, logic processing, and safe actuation across the turbine system.
Common GE Mark VI System Components
Frequently used alongside this module in industrial setups:
- IS200TRLYH1B Relay Output Board
- IS200TTURH1B Turbine Protection Board
- IS200TSVOH1B Servo Control Terminal Board
- IS200TBCIH1C Discrete Input Board
- IS220PDIOH1A Distributed I/O Pack
Each contributes to layered control, safety interlocks, and actuator management.
