Product Overview
In demanding turbine control environments, the GE IS200WROBH1A WROB Relay Fuse and Power Sensing Board provides essential power distribution and fuse monitoring for the Mark VIe series. This option board mounts on TDBS, SRLY, or TDBT boards within the PDIO Discrete Input/Output Module, enhancing relay output capabilities and ensuring reliable operation.
Technical Specifications
| Parameter |
Value |
| Functional Acronym |
WROB |
| Fuse Value |
3.15 A |
| Manual |
GEH-6721L |
| Redundancy Mode |
Simplex, Redundant or TMR |
| Relay |
TRLY |
| Series |
Mark VIe |
| Terminal Board Compatibility |
In TMR: TDBTH2, TDBTH4, TDBTH6 |
Functional Role & Applications
The IS200WROBH1A board connects to the TDBS board to transform the relay section into a potential equivalent of the IS20TRLYH1B board. It supplies sensed and fused power to the first six relay outputs and dedicated power to the final relay outputs. The default fuse is rated at 3.15 A. When used with isolated voltage on the TDBS, the board detects fuse status across six fuse pairs.
Typical applications include gas and steam turbine control systems where discrete I/O reliability is critical. The board's redundancy options (Simplex, Redundant, or TMR) allow integration into safety-critical loops that require fault tolerance.
Installation & Setup
Mount the IS200WROBH1A securely onto the compatible terminal board (TDBS, SRLY, or TDBT). Ensure all connections are torqued to the manufacturer's specifications. Verify the fuse value is 3.15 A before energizing. For TMR configurations, use the specified TDBTH2, TDBTH4, or TDBTH6 terminal boards.
Maintenance & Reliability
Regularly inspect fuse status indicators and replace blown fuses with 3.15 A units. Check for loose connections during scheduled maintenance. The board's design supports high availability, reducing unplanned downtime in critical processes.
Selection Guide
Before purchasing, confirm the board's compatibility with your existing Mark VIe system and terminal board. Ensure your application requires the WROB functionality. For expert assistance and genuine parts, choose PLC Source PRO.