IS215VPROH2BD General Electric VPRO Protection Assembly Board

Independent Triple Redundant Emergency Overspeed Protection

General Electric engineered the IS215VPROH2BD for critical turbine safety. This Turbine Protection Board operates within Mark VI Speedtronic systems. It provides independent triple redundant emergency overspeed protection separate from the primary turbine control system.

Core Technical Specifications

• Manufacturer & Model: General Electric IS215VPROH2BD
• Product Type: Protection Assembly Board
• Series: Mark VI Speedtronic System
• Voltage Rating: 24 VDC or 48 VDC operation
• Power Supply Input: 125 VDC (70-145 VDC range)
• Output Voltages: 5 VDC and 28 VDC
• Frame Rate: Up to 100 Hz for real-time processing

Independent Emergency Overspeed System

• Triple redundant VPRO boards in dedicated Protection Module
• Completely separate from primary turbine control system
• Manages trip solenoids through TREG terminal board interface
• Ethernet connection for IONet communications with control modules
• Independent emergency trip function for maximum safety
• Redundant and fail-safe system architecture

Trip Solenoid Control

• Connects up to three trip solenoids between TREG and TRPG
• TREG supplies positive side of 125 VDC to solenoids
• TRPG provides negative side of 125 VDC power
• Either board can independently initiate turbine trip
• Ensures redundancy and fail-safe operation
• Secondary TREG board can be driven through J4 connector

Relay Control & Voting Logic

• Controls twelve relays on TREG terminal board
• Nine relays configured as three groups of three
• Groups act as voting inputs for trip solenoid activation
• Three trip solenoids controlled by voting logic
• Enhanced redundancy and backup functionality
• Highly reliable emergency protection system

Speed Monitoring Capabilities

• MPU Pulse Rate Range: 2 Hz to 20 kHz
• MPU Pulse Rate Accuracy: 0.05% of reading
• Inputs for passive speed pickups
• Generator and bus voltage measurements
• Thermocouple and 4-20 mA current/voltage signals
• Trip interlock and emergency stop inputs

MPU Cable Requirements

• Maximum Distance: 300 meters (984 feet)
• Shielded pair cable for optimal signal integrity
• Specific capacitance and resistance specifications
• Flexible sensor placement across extended distances
• Robust communication over long cable runs
• Accurate data acquisition and control

Programmable Software Features

• Fully programmable software configuration
• Frame rates: 10, 20, or 40 milliseconds
• Inputs read, conditioned, and executed within frame
• Application software executes chosen control logic
• Outputs distributed across Mark VI system
• Optimized performance for turbine protection

Front Panel Indicators & Controls

• Eleven diagnostic LEDs for comprehensive status monitoring
• Run LED: Green indicates normal operation
• Status LED: Yellow provides operational status
• Fail LED: Red indicates fault conditions
• Reset button located on front panel
• Immediate visual feedback for operators

Connector Configuration

• J3, J4, J5, J6 latching connectors for TPRO/TREG cabling
• J7 connector designated for 125 VDC power input
• Secure latching mechanism for reliable connections
• Front panel accessible for easy installation
• Clear labeling for proper cable identification
• Simplified maintenance and replacement

Output Capabilities

• Trip solenoid outputs for emergency shutdown
• Economizer relays for system efficiency optimization
• Breaker relay commands for main breaker control
• Servo clamp relay contacts for precise control
• Protective measures implementation
• Safe and efficient system operation

System Architecture

• Supports both Simplex and TMR redundancy modes
• Dedicated Protection Module separate from control system
• Compatible with TPRO and TREG terminal boards
• Integrates with TRPG for gas turbine applications
• Surface-mount technology construction
• Manufactured in the United States

Installation Procedure

• Power down VME I/O processor rack completely
• Insert VPRO board into designated slot carefully
• Push top and bottom levers to seat edge connectors
• Tighten captive screws at top and bottom of front panel
• Power up and verify diagnostic LED status
• Update firmware to latest version for optimal performance

Emergency Stop Functions

• Oversees emergency stop capabilities
• Independent from primary overspeed protection
• Redundant shutdown pathways
• Multiple trip initiation sources
• Comprehensive emergency response
• Enhanced turbine safety coverage

Product Availability

• Current Status: In stock for immediate shipment
• New and original General Electric component
• Obsolete but maintained in inventory
• Group H2B variation with specific features
• Complete with installation documentation
• Ready for integration into protection systems

Documentation & Support

• Comprehensive diagnostic section in documentation
• Detailed installation and configuration guides
• Firmware update procedures available
• Technical support for system integration
• Reference manuals for troubleshooting
• Safety and handling instructions provided

Shipping & Delivery

• Fast shipping via FedEx, UPS, and DHL services
• Orders typically ship within 24 business hours
• International shipping available worldwide
• Complete tracking information provided
• Professional packaging ensures board protection

Frequently Asked Questions (FAQ)

What is the primary function of this board?

• The IS215VPROH2BD provides independent triple redundant emergency overspeed protection separate from the primary turbine control system.

How many trip solenoids can it control?

• Connects up to three trip solenoids between TREG and TRPG terminal boards with dual-sided power supply for redundancy.

What voltage options are available?

• Operates on 24 VDC or 48 VDC with 125 VDC power supply input (70-145 VDC range) providing 5 VDC and 28 VDC outputs.

What is the MPU pulse rate capability?

• Accepts pulse rate inputs from 2 Hz to 20 kHz with 0.05% reading accuracy for precise speed monitoring.

How many diagnostic LEDs are on the front panel?

• Features eleven diagnostic LEDs including green Run, yellow Status, and red Fail indicators plus a reset button.

What are the programmable frame rates?

• Fully programmable software supports frame rates of 10, 20, or 40 milliseconds for input processing and output execution.