IS220PPRAH1A I/O Module | Emergency Backup Protection

Critical Emergency Turbine Protection Module

The IS220PPRAH1A is an Emergency Turbine Backup Protection I/O Module by General Electric. It provides independent overspeed protection within the Mark VIeS control system. This module ensures maximum safety for turbine operations.

Core Technical Specifications

• Manufacturer & Model: General Electric IS220PPRAH1A I/O Module
• Board Type: Emergency Turbine Backup Protection I/O Module
• Series Compatibility: Designed for GE Mark VIe & Mark VIeS Turbine Control Systems
• Input Power: 24 V DC with ≤ 15 W power consumption
• Communication Protocol: MODBUS TCP/IP with dual 10/100 Ethernet ports
• Input Channels: 16 channels with 0-5 V input range
• Operating Temperature: -20°C to +70°C range
• Dimensions: 33.0 cm wide x 17.08 cm high surface-mount design
• Weight & Origin: 1.2 kg, manufactured in the United States

Primary Function & Design

• Provides independent backup overspeed protection for turbine systems.
• Functions as a watchdog for primary control systems.
• Processes isolated trip contact inputs for safety monitoring.
• Works as a Triple Modular Redundant (TMR) system with three packs.
• Supports six-speed inputs with dual sensors per shaft.
• Mounts on TREA terminal board with WREA option board.

Key Operational Features

• High-Speed Processing: Features dedicated processor with RAM and flash memory.
• Dual Ethernet Connectivity: Two independent 10/100 Ethernet ports for network redundancy.
• Comprehensive Monitoring: Hardware watchdog timer and internal temperature sensor.
• Clear Status Indicators: Multiple LEDs provide immediate operational feedback.
• Safe Power Management: Input power connector with soft-start current limiting.
• Hazardous Location Certified: Approved for use in certified safety applications.

System Compatibility & Configuration

• Required Components: Must work with IS200TREA terminal board and IS200WREA daughter board.
• Certified Versions: PPRAS1A with TREAS1A and WREAS1A for IEC 61511 safety loops.
• Network Requirements: Operates in three-pack configuration only (single/dual not supported).
• Controller Integration: Connects to R, S, and T controller networks via JX1, JY1, JZ1 connectors.
• Pressure Monitoring: Supports 2 transducers with 1.5 Hz pressure wave frequency range.
• Speed Input Handling: Manages MPU pulse rates up to 2 Hz range.

Installation Guidelines

• Securely mount the IS200TREA terminal board first.
• Plug three IS220PPRAH1A modules directly into the terminal board.
• Align threaded posts on modules with terminal board mounting bracket slots.
• Ensure DC-62 pin connectors fit securely before tightening the bracket.
• Connect one or two Ethernet cables based on your system configuration.
• Apply power using the module's side connector (features soft-start capability).

Protective Functions & Signal Types

• (SS) Signals: Created within PPRA, flow out to the controller.
• SS Signals: Created in controller, flow into PPRA.
• (IO) Signals: Created within PPRA, flow out to hardware.
• IO Signals: Hardware inputs into the PPRA module.
• CFG Signals: Configuration variables for system setup.

Shipping & Availability

• Availability: In stock for immediate shipment.
• Shipping Methods: FedEx, UPS, and DHL express services available.
• Repair Service: Professional repair available within 3-7 days.
• Packaging: Includes one IS220PPRAH1A module securely packed.

Frequently Asked Questions (FAQ)

• What is the main purpose of the IS220PPRAH1A module?
  It provides independent backup overspeed protection for GE turbine control systems as a safety redundancy.
• Can I operate with just one or two PPRA modules?
  No, the system requires three modules in a Triple Modular Redundant configuration for proper operation.
• What other components do I need with this module?
  You need the IS200TREA terminal board and IS200WREA daughter board for complete functionality.
• Is this module certified for hazardous locations?
  Yes, it is HazLoc certified and has IEC 61508 certified versions for safety applications.
• How do I know if this module is compatible with my system?
  Check if you have a GE Mark VIe or Mark VIeS control system requiring emergency turbine protection.