Description
The IS200WROBH1ABA is a WROB Relay Fuse and Power Sensing Board, a critical component of the General Electric Mark VIe control system. This option board is designed to integrate with PDIO Discrete Input/Output modules, specifically supporting attachment to TDBS, SRLY, and TDBT terminal boards.
Features
- Designed for the Mark VIe control system architecture.
- Supports Simplex, Redundant, and Triple Modular Redundant (TMR) configurations.
- Provides fused power distribution and isolated voltage sensing for relay outputs.
- Features 12 fuse positions for circuit protection.
- Enables diagnostic fault generation to the controller if a fuse opens during operation.
- Compatible with a wide range of application voltages, including 24/48/125 VDC and 120/240 VAC.
Applications
- Combined Cycle Power Plants: Manages gas and steam turbine interplay.
- Heavy Industrial Refineries: Supports turbine compressors and overspeed protection systems.
- Metallurgy and Smelting: Provides high-current relay sensing for critical process control.
- Large-Scale Manufacturing: Facilitates precise relay-driven machine control via PDIO modules.
- Utilities and Municipal Engineering: Enables redundant fault detection for boilers and energy plants.
Technical Specifications
| Model Number |
IS200WROBH1ABA |
| Spare Model |
IS200WROBH1A |
| Manufacturer |
General Electric |
| Fuse Quantity |
12 |
| Default Fuse Rating |
3.15 A |
| Power Sensing Voltage |
24 VDC |
| DC Application Range |
24 / 48 / 125 VDC |
| AC Application Range |
120 / 240 VAC |
| Operating Temperature |
-40 degC to +70 degC |
| Storage Temperature |
-40 degC to +85 degC |
Installation Guidelines
- Ensure the control system is powered down before installing or removing the board from the PDIO module.
- Handle the board using proper ESD (Electrostatic Discharge) protection practices to prevent damage to sensitive electronic components.
- Verify that the board is securely seated in the designated slot on the TDBS, SRLY, or TDBT terminal board.
- Ensure all wiring connections are tightened to the specified torque requirements for the terminal blocks.
- Maintain adequate ventilation in the cabinet to ensure the operating temperature remains within the specified -40 degC to +70 degC range.
FAQ
Which I/O redundancies are supported by this board?
The IS200WROBH1ABA supports both Simplex and Triple Modular Redundant (TMR) I/O pack configurations.
What is the primary purpose of the IS200WROBH1ABA?
It serves as a relay fuse and power sensing board, providing fused power distribution to relay outputs and real-time diagnostic feedback to the Mark VIe controller.
How does the board handle fuse status detection?
When used with isolated voltage on a compatible terminal board like the TDBS, the IS200WROBH1ABA detects the state of fuse pairings and generates a diagnostic fault if a fuse opens while voltage is present.
