The IS220PPROH1A is an I/O protection module from General Electric’s Mark VI Speedtronic Turbine Control System. It interfaces directly with turbine field devices, reducing the need for additional instrumentation and improving reliability. Used in gas, steam, and wind turbine control systems, this module is an upgrade over the previous Mark V series, offering broader functionality. It features hardware-implemented overspeed protection and two Ethernet ports for communication.

Technical Specifications

• Manufacturer: General Electric
• Product Series: Mark VI Speedtronic
• Part Number: IS220PPROH1A
• Category: PLCs/Machine Control
• Subcategory: VDC Logic I/O Module
• Weight: 1.00 lbs
• Functional Description: I/O Protection Module for Turbine Control Systems
• Functional Revision: A
• Assembly Type: Special Assembly
• Revision Quantity: 1 Revision

Key Features

• Direct turbine field device interface
• Voltage sensing with 1,000 ft cable limit (18 AWG)
• Accepts deceleration, acceleration, and overspeed signals
• Hardware overspeed protection
• Two Ethernet ports and an IR port for communication and diagnostics
• LED indicators for system status