Description
- Product Model: IS220PHRAH1B
- Manufacturer: GE (General Electric)
- System Platform: GE Mark VIe Distributed Control System
- Channels: 32 digital I/O channels (16 inputs and 16 outputs)
- Nominal Voltage: 24V DC
- Maximum Voltage: 32V DC
- Response Time: ≤ 4ms for I/O signal transitions
- Channel Isolation: Optical isolation (~1500V)
- Communication Protocol: IONet Ethernet for integration with Mark VIe system
- Redundancy: Dual Ethernet ports for enhanced communication reliability
- Operating Temperature: –30°C to +65°C
- Certifications: UL Class I Div 2, Zone 2 (with appropriate terminal boards)
- Mounting Style: Rack-mounted I/O module
- Power Consumption: 0.7A maximum at 24V DC
Technical Architecture & Functional Positioning
The IS220PHRAH1B serves as a high-performance I/O module in the Mark VIe Speedtronic system, where it manages the digital input and output signals to and from field devices. Typically used in high-density control systems, this module ensures efficient communication between field devices (e.g., actuators, switches, sensors) and the system controller.
Its optical isolation provides electrical protection to the system, ensuring that high-voltage spikes or electromagnetic interference from field devices do not disrupt the operation of the module or the broader control system. The dual Ethernet communication ports allow for redundant data paths, which is critical in industrial systems where continuous, real-time data flow is necessary to prevent downtime.
With 32 channels (16 inputs and 16 outputs), the IS220PHRAH1B is ideal for industrial applications that require precise and reliable control over a large number of discrete devices, such as safety interlocks, motor starters, or solenoid valves.
Typical Application Scenarios
- Turbine Control Systems: Integrated within Mark VIe systems for real-time control of turbines, specifically managing discrete outputs such as trip relays and valve actuators.
- Safety and Shutdown Systems: Used to control emergency shutdown devices, such as fail-safe switches, safety alarms, and other critical components.
- Manufacturing Automation: Controls motors, actuators, and other discrete devices in automated industrial processes.
- System Retrofit Projects: Replaces or upgrades older digital I/O modules, providing faster switching times and improved signal reliability.
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