GE Mark VIe Emergency Turbine Protection I/O Pack IS220PPROS1B

The IS220PPROS1B is an Emergency Turbine Protection I/O Pack from General Electric. This critical component belongs to the trusted Mark VIe series. It provides robust and independent backup protection for gas and steam turbines. The pack ensures operational safety by monitoring primary control systems.

Technical Specifications

• Brand: General Electric
• Model: IS220PPROS1B
• Product Type: Emergency Turbine Protection I/O Pack
• Series: Mark VIe
• Operating Temperature: -30 to 65°C
• Power Supply Voltage: 24 V DC
• Board Size: 14.3 cm high x 23.1 cm
• Weight: 0.45 kg
• Country of Origin: USA
• Reference Manual: GEH-6721L

Product Functionality and Features

• The IS220PPROS1B pack delivers reliable emergency turbine protection.
• It acts as an independent watchdog for the primary turbine control system.
• This unit provides a vital backup overspeed protection system.
• It also performs a backup check for proper generator synchronization.
• The pack handles three different types of speed signals for comprehensive monitoring.
• It continuously tracks the status and health of the connected trip board.
• Upon detecting a fault, it initiates a trip on the primary control system.
• Its operation remains completely independent of the principal control actions.

System Integration and Compatibility

• The PPRO I/O pack connects to control modules via Ethernet for IONet communications.
• You can directly mount it on an SPRO or TREA terminal board.
• When mounted on an SPRO board, it connects to TREG, TREL, or TRES trip boards via cables.
• A typical TMR protection system uses three PPRO I/O packs for maximum redundancy.
• This configuration provides a highly fault-tolerant backup protection system.
• For simplex backup protection, a single PPRO module on a TRES board is sufficient.
• In dual main control setups, the pack monitors the performance of both controllers.

Installation Guide

• First, securely mount the SPRO or TREA terminal board in your system.
• If you use an SPRO board, also mount your chosen trip terminal board.
• Connect the SPRO to the trip board with a DC-37 pin cable if needed.
• Slide the PPRO's threaded posts into the terminal board's mounting bracket.
• Adjust the bracket position to ensure a tight fit for the DC-62 pin connector.
• Firmly secure the mounting bracket and tighten the nuts on the threaded posts.
• Connect one or two Ethernet cables to the module's network ports.
• Finally, connect the power connector on the module's side to energize it.

Operation and Design

• The processor board contains a fast CPU, flash memory, and RAM.
• It features two independent 10/100 Ethernet ports for network communication.
• A built-in soft-start circuit regulates current during power-up.
• The module performs self-test routines upon application of input power.
• It then loads its application-specific code from the internal flash memory.
• The application code verifies a correct match with the acquisition and terminal boards.
• When two Ethernet inputs are used, both network pathways stay active.
• This design offers superior fault tolerance compared to traditional hot-backup systems.

Packaging and Shipping

• Each unit ships securely packaged to prevent damage during transit.
• The package contains one IS220PPROS1B I/O Pack.
• We ship all orders via reliable global carriers like FedEx, UPS, and DHL.
• You will receive tracking information immediately after your order ships.

Frequently Asked Questions (FAQ)

• What is the main purpose of the IS220PPROS1B? It provides independent backup overspeed and protection for turbines.
• Can I use this module in a simplex system? Yes, it supports simplex backup protection on the TRES trip board.
• How many Ethernet connections does it need? It can operate with one or two connections for redundancy.
• What is the operating voltage? The module requires a 24 V DC power supply to function.
• Where can I find the technical manual? Please refer to GE manual GEH-6721L for detailed information.

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