Description
- Product Model: IS220PDOAH1A
- Manufacturer: GE (General Electric)
- System Platform: GE Mark VIe Speedtronic Distributed Control System
- Channels: 24 discrete output channels
- Nominal Voltage: 24V DC
- Maximum Output Voltage: 32V DC
- Output Isolation: Optical isolation (≥1500V) for protection from electrical noise
- Output Response Time: ≤ 4ms for reliable signal switching
- Redundant Communication: Dual Ethernet ports for network redundancy, ensuring continuous operation during fault events
- Operating Temperature Range: –30°C to +65°C (industrial-grade tolerance)
- Hazardous Location Certification: UL Class I Div 2, Zone 2 certified (when paired with appropriate terminal boards)
- Terminal Board Compatibility: Compatible with various GE terminal boards (e.g., IS200STCIH1A, IS200TBCIH2C)
- Mounting Style: Rack-mounted with modular I/O pack insertion
- Communication Protocols: IONet Ethernet for communication with system controllers
- Power Consumption: 0.5A maximum at 24V DC
Technical Architecture & Functional Positioning
The IS220PDOAH1A is designed to handle digital output signals in high-density industrial environments, making it a crucial element in the control of discrete equipment such as actuators, valves, and relays within a GE Mark VIe turbine control system. Positioned in the output layer of the distributed I/O network, this module receives control signals from the system controller and converts them into discrete binary outputs for field devices.
The module utilizes optical isolation to safeguard the internal logic circuits from electrical interference or transients originating from the field wiring. This isolation minimizes the risk of signal degradation or controller malfunction, particularly in environments with high electromagnetic interference (EMI) or harsh electrical conditions. It also ensures that electrical faults in the field devices do not affect the control system’s stability.
With dual Ethernet communication ports, the IS220PDOAH1A supports redundant data paths, ensuring high availability of output signals, even if one communication network fails. This design feature is essential for mission-critical applications where system downtime must be minimized. Whether for turbine control or other industrial automation systems, the module offers robust performance with quick response times (≤ 4ms), ensuring real-time output control for process operations.
Typical Application Scenarios
- Turbine Control: Integrated into Mark VIe turbine control systems for generating discrete output signals for protective devices, actuator commands, and valve control.
- Process Automation: Deployed in process plants where precise control over equipment (e.g., valves, solenoids) is required based on system logic decisions.
- Safety Systems: Used for controlling safety interlocks or emergency shutoff systems requiring precise and reliable discrete outputs.
- Industrial Equipment Control: Suitable for heavy industrial machinery requiring fast, reliable control over motors, actuators, and field devices.
- System Retrofits: Serves as a replacement or upgrade for legacy systems in need of enhanced digital output functionality and faster switching times.
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