GE IS220PDOAH1A Mark VIe Turbine Control System Discrete Output I/O Module

Product Description

GE IS220PDOAH1A is a Discrete Output I/O Pack for Mark VIe (Speedtronic) turbine control system, the supporting I/O card for gas turbine and steam turbine unit control. The module integrates local processor, Flash and RAM memory, equipped with dual 100Mbps full-duplex Ethernet Ionet network ports. It receives logic commands from the controller and drives up to 12 relay outputs. It supports external SRLY / TRLY terminal boards and feedback signal acquisition for output status readback. Adopted pluggable modular design and redundant network architecture, it is built for high-reliability control of power generation units, meeting continuous operation requirements of power plants, commonly used for spare replacement of DCS / turbine control systems.

Product Parameters

• Series: Mark VIe Speedtronic Turbine Control I/O Module
• Model: IS220PDOAH1A
• Module Type: Discrete Digital Output Pack
• Output Channels: 12 relay control channels, compatible with solid-state relay and electromagnetic relay terminal boards
• Communication Interfaces: Dual RJ45 100Mbps full-duplex Ionet Ethernet
• Power Input: 28V DC
• Memory: Flash + RAM
• Status LED: 4 indicators for Power, Attention, TxRx, Link
• Compatible Terminal Boards: Up to 6 discrete output terminal boards, SRLY, TRLY series
• Dimension: 3.25″ H × 1.65″ W × 4.78″ D
• Mounting: Modular slot installation in control cabinet
• Operating Temperature: -40℃ ~ +85℃
• Lifecycle: Discontinued, available for spare parts and new surplus

Product Application

It is the I/O output unit of GE Mark VIe turbine control system, mainly applied for gas turbines, steam turbines, combined cycle power plants and captive power stations. It receives logic commands from main controller, sends discrete signals to drive solenoid valves, unit trip relays, valve actuators and alarm circuits. It supports output feedback readback to monitor circuit status in real time, executing interlock protection, unit start-stop, valve control and fault alarm output. Widely used in thermal power, oil & gas and petrochemical power units for turbine control system retrofit and spare replacement.

Same Series Models (Mark VIe IS220 I/O Modules)

IS220PDIOH1A, IS220PDIAH1A, IS220PPROH1A, IS220PAOAH1A, IS220PAIAH1A, IS220YDOAS1AJ