GE IS420YDOAS1B

Technical Specifications

Output Channel Details

Function Features

• 12 Independent Relay Outputs: 12 SPDT relay channels with dedicated coil monitoring enable precise control of process actuators while providing real-time feedback for fault detection.
• Deterministic IONet Integration: Optimized for Mark VIe IONet protocol, ensuring high-speed, low-latency data transfer for real-time control applications.
• Simplex/TMR Compatibility: Supports both simplex and TMR configurations, allowing flexibility for non-safety-critical and mission-critical applications.
• Real-Time Coil Monitoring: Dedicated coil monitors detect open circuits, short circuits, and overloads, triggering immediate fault alerts for proactive maintenance.
• Front-Panel Diagnostics: 12 yellow LEDs for output command status and additional LEDs for power, communication, and fault conditions enable quick troubleshooting without software tools.
• Hot-Swap Capability: Supports hot-swappable replacement without system shutdown, minimizing downtime during maintenance.
• Harsh Environment Design: Conformal-coated PCB and wide operating temperature range (-40°C to +70°C) protect against moisture, dust, and vibration in industrial settings.
• ControlST Integration: Configured and monitored via ControlST V06.01 or later, supporting output configuration, diagnostic alerts, and data logging.
• High Isolation Rating: 2500V AC isolation between channels and backplane prevents signal interference and ensures safety in high-voltage environments.
• Robust Mechanical Design: Surface-mount technology and durable enclosure ensure long-term reliability in heavy-duty industrial applications.

Application Scenarios

• Gas Turbine Control: Controls fuel valves, ignition systems, and lube oil pumps, ensuring precise combustion control and safe turbine operation.
• Steam Turbine Control: Manages steam admission valves, bypass valves, and emergency shutdown systems, optimizing energy conversion and reducing emissions.
• Combined-Cycle Power Plants: Coordinates relay-based control of balance-of-plant (BOP) systems, including pumps, fans, and heat recovery steam generators (HRSGs).
• Industrial Automation: Controls discrete actuators in refineries, chemical plants, and offshore platforms, supporting harsh environment operation and hazardous location compliance.
• Safety Instrumented Systems (SIS): Used in Mark VIeS functional safety applications to drive safety relays, ensuring compliance with SIL 3 standards for critical shutdown processes.
• Turbine Retrofits: Direct replacement for legacy discrete output modules in Mark VIe upgrades, enhancing control capabilities and diagnostic features without requiring system reconfiguration.
• Process Control: Manages on/off control of valves, motors, and alarms in pulp and paper, water treatment, and food processing plants, ensuring compliance with quality and safety standards.
• Hazardous Environments: Operates safely in UL Class I Division II and ATEX Zone 2 locations, ensuring compliance with safety standards for explosive atmospheres.

Compatibility and Integration

• Mark VIe Ecosystem: Fully compatible with Mark VIe/VIeS controllers (e.g., IS420UCSBH1A), I/O modules (e.g., IS420PUAAH1A, IS420ESWBH1A), and terminal boards (DS3800NTBH, DS3800NTBJ), ensuring seamless IONet communication.
• IONet Architecture: Optimized for Mark VIe IONet protocol, providing deterministic data transfer for real-time control applications.
• ControlST Software: Configured and monitored via ControlST V06.01 or later, supporting output configuration, diagnostic alerts, and data logging.
• Terminal Boards: Works with DS3800NTBH and DS3800NTBJ terminal boards for secure signal wiring and termination, supporting independent channel commissioning.
• Redundant Power Supplies: Operates with Mark VIe controller backplane power (24 VDC) and integrates with redundant power sources (e.g., IS230JPDGH1B) for maximum system availability.
• Documentation: Detailed guidelines available in the GE Mark VIe System Manual (GEH-6725) and ControlST Configuration Guide, including wiring diagrams and output configuration instructions.