IS220PPROS1B

Overview

General Electric IS220PPROS1B Emergency Turbine Protection I/O Pack is part of the Mark VIe Series used in GE Distributed Control Systems. It provides backup Overspeed protection, generator synchronization checks, and serves as an independent watchdog for turbine control systems.

Basic Information

• Manufacturer: General Electric

• Series: Mark VIe

• Product number: IS220PPROS1B

• Type: Emergency Turbine Protection I/O Pack

Environmental Specifications

• Operating temperature: –30 to +65 °C

• Power supply voltage: 24 VDC

• Board size: 14.3 cm (H) × 23.1 cm

• Weight: 0.45 kg

Functional Features

• Backup protection: Overspeed, generator synchronization check

• Watchdog: Independent monitoring of primary control

• Speed signals handled: Hardware Overspeed, acceleration, deceleration, basic Overspeed

System Configuration

• Typical setup: 3 TMR PPRO I/O packs mounted to SPRO terminal board

• Connections: DC‑37 pin cables to emergency trip boards

• Trip boards supported:

  • TREG: Gas Turbine Emergency Trip

  • TREL: Large Steam Turbine Emergency Trip

  • TRES: Small/Medium Steam Turbine Emergency Trip

  • TREA: Turbine Emergency Trip

Integration

• Communication: Ethernet via IONet

• Primary protection: PTUR I/O pack with TRPG, TRPL, TRPS, TRPA boards

• Backup protection: PPRO I/O pack with TREG, TREL, TRES, TREA boards

• Independence: Backup trip action independent of primary control

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