General Electric IS220PPRAH1A Emergency Turbine Protection I/O Module

The IS220PPRAH1A is a critical Emergency Turbine Backup Protection I/O Module from General Electric's Mark VIeS series. This module provides a fully independent backup overspeed protection system for gas and steam turbines. It ensures operational safety with its triple modular redundant (TMR) design. You must use three IS220PPRAH1A packs with a IS200TREA terminal board and a IS200WREA daughter board for correct functionality.

Technical Specifications

• Brand: General Electric
• Model: IS220PPRAH1A
• Series: Mark VIeS
• Input Power Supply: 24 V DC
• Power Consumption: ≤ 15 W
• Number of Input Channels: 16
• Input Voltage Range: 0-5 V
• Protocols Supported: MODBUS TCP/IP
• Operating Temperature: -20°C to +70°C
• Mounting Type: Surface-mount
• Dimensions: 33.0 cm wide x 17.08 cm high
• Weight: 1.2 kg
• Country of Origin: United States

Core Functions and Features

• The module delivers an independent backup overspeed protection system for turbine control
• It provides a watchdog function for the primary control system and monitors isolated trip contact inputs
• This I/O pack supports six-speed inputs when using dual-speed sensors per shaft
• It features a high-speed processor with dedicated RAM and flash memory for reliable performance
• The module includes two fully independent 10/100 Ethernet ports for robust communication
• A hardware watchdog timer and an internal temperature sensor enhance system reliability
• Status-indication LEDs offer clear visual feedback on the module's operational status

Compatibility and System Integration

• The IS220PPRAH1A is designed to work exclusively with the IS200TREA terminal board
• The system requires the IS200WREA daughter board to be mounted on the PPRA's option header
• You must install three IS220PPRAH1A I/O packs for the system to function correctly
• Single or dual-pack operation is not a supported configuration for this module
• The pack is available in an IEC 61508 certified version for use in safety-certified loops
• It seamlessly integrates into systems with single, dual, or triple controller networks

Installation Guide

• First, securely mount the IS200TREA terminal board in your chosen location
• Directly plug three IS220PPRAH1A I/O packs into the terminal board
• Slide the threaded posts on the PPRA module into the terminal board's mounting bracket slots
• Adjust the bracket location to ensure the DC-62 pin connector fits securely with the terminal board
• Tighten the mounting bracket; this adjustment is typically a one-time requirement
• Securely tighten the nuts on the threaded posts to lock the PPRA modules firmly in place
• Connect one or two Ethernet cables to the module based on your system configuration
• Finally, apply power by plugging in the power connector on the module's side

Packaging List

• IS220PPRAH1A I/O Protection Module
• Mounting hardware and connectors
• We ship all orders via reliable carriers like FedEx, UPS, or DHL

Frequently Asked Questions (FAQ)

What is the main purpose of the IS220PPRAH1A module?

It serves as an independent emergency backup protection system for turbine overspeed.

Can I operate a single IS220PPRAH1A module alone?

No, it requires a triple modular redundant setup with three packs on a TREA terminal board.

What terminal board is compatible with this module?

You must use the IS200TREA terminal board with the IS200WREA daughter board.

What communication protocol does it support?

The module uses the MODBUS TCP/IP protocol for network communication.

What is the input voltage range for its channels?

The standard input voltage range for its channels is 0-5 V.

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