Description
1. Product Title
GE IS410SRLYS2A – Mark VIe Relay Output Terminal Board
2. Product Overview
The GE IS410SRLYS2A is a robust Relay Output Terminal Board designed for the Mark VIe Distributed Control System (DCS). This module serves as the critical physical interface for driving high-power or pilot-duty field devices, such as solenoids, motor starters, and alarm indicators.
The IS410SRLYS2A is engineered to receive low-voltage control signals from a digital output I/O pack (typically a PDOA) and convert them into isolated contact closures via onboard electromechanical relays. By providing a clear separation between sensitive control electronics and higher-voltage field circuits, this board addresses the need for electrical isolation and high-current switching capacity in demanding power generation and industrial automation environments.
3. Technical Specifications
- Brand: General Electric (GE)
- Model:IS410SRLYS2A
- Warranty: One Year
- Condition: 100% New & Original
- Relay Channels: 12 Electromechanical Relays
- Contact Ratings: * 125V DC @ 2A (Resistive)
- 240V AC @ 5A (General Purpose)
- Configuration: Support for Simplex and Redundant control paths
- Isolation: 1500 V RMS galvanic isolation between field and control logic
- Feedback Monitoring: Integrated hardware feedback for relay contact position
- Connector Type: D-type connectors for I/O pack interface; Barrier-type terminal blocks for field wiring
- Operating Temp: -30°C to +65°C (-22°F to +149°F)
4. Key Features & Benefits
- Magnetic Contact Feedback: The IS410SRLYS2A provides real-time feedback to the controller regarding the actual state of the relay contacts, allowing the system to detect if a relay is stuck open or closed.
- High-Current Switching: Capable of handling significant AC and DC loads, reducing the requirement for intermediate interposing relays in many auxiliary control circuits.
- TMR Compatibility: Designed to integrate seamlessly with Triple Modular Redundant (TMR) architectures, where three I/O packs can drive the board with 2-out-of-3 (2oo3) voting logic.
- Rugged Field Termination: Features heavy-duty terminal blocks designed to withstand the vibration and thermal cycling common in turbine compartment environments.
5. Application Scenarios
- Solenoid Valve Control: Frequently used to manage the activation of fuel gas shut-off valves and hydraulic trip solenoids in turbine fuel skids.
- Motor Starter Interfacing: Acts as the primary control interface for starting and stopping auxiliary lube oil pumps and cooling fans.
- Plant Alarm Systems: Deployed to trigger hardwired annunciators and emergency sirens within a power facility’s centralized alarm management system.
6. Frequently Asked Questions (FAQ)
- Q: What is the relationship between IS400SRLYS2ABB ?
- A: TheIS400SRLYS2ABB is the full assembly model number (including the mechanical carrier and revision), while IS400SRLYS2ABB refers to the specific printed circuit board (PCB) used inside.
- Q: Can this board be used in a TMR (Triple Modular Redundant) system?
- A: Yes, the SRLY series is specifically designed to support TMR applications, allowing three I/O packs to connect to the board via three separate D-type connectors.
