Description
GE IS220YDOAS1A – Mark VIe Discrete Output I/O Pack
The IS220YDOAS1A is a high-performance discrete output I/O pack designed for the General Electric PACSystems Mark VIe control platform. This module serves as the functional interface between the control network and the field devices, specifically managing discrete (ON/OFF) signals. In high-stakes industrial environments like power generation, the IS220YDOAS1A solves the problem of high-speed, reliable actuation for critical components such as solenoids, relays, and indicator lights. It features an integrated processor that handles local logic and diagnostics, communicating back to the main controller via the IONet (a redundant Ethernet-based network). By offloading local signal processing and providing robust electrical isolation, this module ensures that the primary control system remains efficient and protected from field-side electrical disturbances.
Technical Specifications
- Brand: GE (General Electric / Emerson)
- Model: IS220YDOAS1A
- Series: Mark VIe
- Warranty: One Year
- Condition: 100% New & Original
- Output Type: Discrete (Digital) Output
- Channels: 12 Relays or Solid State (depending on the terminal board)
- Communication: Dual 10/100 Mbps Ethernet ports (Redundant IONet)
- Input Voltage: 28 VDC (Nominal)
- Operating Temperature: -30 to +65 °C (-22 to +149 °F)
- Isolation: Galvanic isolation between field and control logic
Key Features & Benefits
- Hardware Redundancy: The IS220YDOAS1A supports dual Ethernet ports for IONet connectivity, ensuring that the module continues to function and receive commands even if one network cable or switch fails.
- Integrated Diagnostics: Features comprehensive self-diagnostics that monitor the health of the internal hardware and the status of the field circuits, reporting faults such as “open wire” or “short circuit” directly to the HMI.
- Onboard Signal Processing: By processing the discrete output logic locally on the pack, the IS220YDOAS1A reduces the computational load on the central controller and minimizes latency for time-critical switching.
- Electronic Keying: Built-in electronic identification ensures that the software automatically recognizes the module, preventing configuration errors during replacement and ensuring the correct firmware version is active.
Application Scenarios
- Turbine Auxiliary Systems: Often used in GE gas and steam turbines to control auxiliary motors, lubrication pumps, and cooling fans, where the IS220YDOAS1A provides the necessary switching logic for safe startup and shutdown.
- Fuel Skid Control: Deployed in fuel delivery systems to actuate isolation valves and vent solenoids, benefiting from the module’s high reliability and diagnostic capabilities in hazardous areas.
- Emergency Trip Systems (ETS): Integrated into safety-related systems where the IS220YDOAS1A manages the discrete signals required to trigger emergency stops or fire suppression systems.
Frequently Asked Questions (FAQ)
- Q: What is the primary function of the IS220YDOAS1A?
- A: It is an I/O pack that receives digital commands from the Mark VIe controller via Ethernet and converts them into discrete electrical signals to drive field devices like relays or solenoids.
- Q: Does the IS220YDOAS1A require a terminal board?
- A: Yes, the IS220YDOAS1A pack must be plugged into a compatible terminal board (such as TRLY series) to facilitate the physical wiring connections to the field devices.
- Q: Is the IS220YDOAS1A compatible with the Mark VI (non-e) system?
- A: No, the IS220YDOAS1A is designed for the Mark VIe’s distributed architecture and Ethernet-based communication network; it is not directly compatible with the backplane-based Mark VI system.
GE IS210BPPBH2BMD GE IS420ESWBH3A GE IS420PPNGH1A
- A: No, the IS220YDOAS1A is designed for the Mark VIe’s distributed architecture and Ethernet-based communication network; it is not directly compatible with the backplane-based Mark VI system.
