GE IS220PDOAH1A
GE IS220PDOAH1A
GE IS220PDOAH1A
GE IS220PDOAH1A
GE IS220PDOAH1A

GE IS220PDOAH1A | Mark VIe Series Discrete Output Module for Gas Turbine Control

  • Brand: GE (General Electric)
  • Model: IS220PDOAH1A (Variant of Mark VIe Series)
  • Product Type: Discrete Output Module
  • Series: Mark VIe (Gas/Steam Turbine Control Systems)
  • Core Function: Serves as a critical discrete signal output interface in GE Mark VIe turbine control systems, enabling reliable control of industrial devices (e.g., relays, solenoids, indicator lights) via 12 relay output channels. Designed for high-reliability industrial environments with optical isolation and VMEbus compatibility.
  • Key Specs:
    • Output Channels: 12 relay (form C, 0.5A max per channel)
    • Isolation: Optical isolation (1500V AC channel-to-channel)
    • Bus Compatibility: VMEbus Rev. C.1 (supports 8/16/32-bit data transfer)
    • Operating Temperature: 0°C to +60°C (industrial-grade)
    • Applications: Power generation (gas/steam turbines), manufacturing (assembly lines), petrochemical (valve/pump control)
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Description

IS220PDOAH1A: Product Overview​
The GE IS220PDOAH1A​ is a discrete output module designed specifically for GE Mark VIe gas and steam turbine control systems, a legacy platform renowned for its reliability in industrial power generation. As part of the Mark VIe ecosystem, it acts as a “signal actuator” between the VMEbus controller and field devices (e.g., turbine valve solenoids, pump relays), enabling precise control of industrial processes—critical for maintaining turbine stability and efficiency.
Role in Automation Systems:
Positioned as a “field output interface” in Mark VIe architectures, the IS220PDOAH1A performs two primary functions:
  1. Signal Conversion: Receives digital signals from the VMEbus controller and converts them into relay outputs to drive field devices (e.g., turning on a pump relay to maintain coolant flow).
  2. Device Control: Sends control commands to field actuators (e.g., solenoids, relays) to adjust industrial processes (e.g., starting a conveyor belt, stopping a pump).
Core Functionality:
  • VMEbus Compatibility: Conforms to VMEbus Rev. C.1, ensuring seamless integration with VME64 backplanes and controllers (e.g., GE Fanuc 90-30 series). This allows the module to work with existing Mark VIe components without major system upgrades.
  • Flexible Signal Handling: Supports 12 relay output channels (form C), making it adaptable to diverse field devices (e.g., relays, solenoids, indicator lights).
  • High Precision: Uses optocouplers for galvanic isolation, protecting sensitive controller circuits from voltage spikes and electromagnetic interference (EMI) in harsh industrial environments.
  • Rugged Design: Industrial-grade components and a compact form factor enable 24/7 operation in high-temperature, high-vibration environments (e.g., power plant turbine halls).
Platform Benefits (Mark VIe Series):
The IS220PDOAH1A inherits the Mark VIe platform’s strengths, including:
  • Reliability: The Mark VIe system is the industry standard for gas turbine control, with a proven track record of 24/7 operation in power plants worldwide.
  • Legacy Compatibility: The module is designed to work with existing Mark VIe components (e.g., I/O modules, contactors), reducing the cost of system upgrades.
  • Scalability: Supports expansion with additional I/O modules to accommodate growing system demands (e.g., adding more sensors to a turbine control system).

    GE IS220PDOAH1A

    GE IS220PDOAH1A

Technical Specifications​
  • Model Number: IS220PDOAH1A (Variant of Mark VIe Series)
  • Manufacturer: GE (General Electric)
  • Product Type: Discrete Output Module
  • Series: Mark VIe (Gas/Steam Turbine Control)
  • Form Factor: 6U Eurocard (160 mm × 233 mm)
  • Bus Standard: VMEbus Rev. C.1 (supports 8/16/32-bit data transfer)
  • Output Channels: 12 relay (form C, 0.5A max per channel, 24 VDC nominal)
  • Isolation: Galvanic isolation (optocouplers, 1500 V AC channel-to-channel)
  • Operating Temperature: 0°C to +60°C (industrial-grade)
  • Storage Temperature: -40°C to +85°C
  • Humidity: 5–95% non-condensing
  • Weight: 0.4 kg (0.88 lbs)
  • Certifications: CE, UL (inferred from GE industrial product standards)
Core Features & Customer Value​
1. Reliable Device Control:
The IS220PDOAH1A’s relay outputs and galvanic isolation ensure reliable control of field devices, even in electrically noisy environments. For example, in a power plant, the module can reliably activate a pump relay to maintain coolant flow, preventing turbine overheating.
2. Flexible Configuration:
12 relay output channels allow engineers to customize the module’s functionality for different field devices, reducing the need for additional signal conditioning hardware. This flexibility saves time and money during installation.
3. Rugged Industrial Design:
The module’s operating temperature range (0°C to +60°C) and compact form factor make it suitable for harsh industrial environments. Its DIN rail mounting option simplifies installation in crowded control cabinets, reducing setup time and effort.
4. Easy Integration:
VMEbus compatibility ensures seamless integration with existing VMEbus systems, minimizing downtime and effort during upgrades. This is invaluable for facilities with legacy VMEbus installations, allowing them to enhance system capabilities without replacing entire architectures.

GE IS220PDOAH1A

GE IS220PDOAH1A

Typical Applications​
The GE IS220PDOAH1A​ is widely used in industrial automation systems for:
  1. Power Generation:
    • Controls relays and solenoids in turbine control systems, ensuring stable power output.
  2. Manufacturing:
    • Drives conveyor belts, robotic arms, and assembly line equipment in automotive and electronics manufacturing.
  3. Petrochemical Industry:
    • Activates valves and pumps in refineries, ensuring safe and efficient operation in hazardous environments.

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