The GE IS200WROBH1A, also cataloged as the IS200WROBH1A Power Distribution Board, functions as a WROB relay fuse and power sensing board within the Mark VIe turbine control system. It provides redundancy support and relay interfacing for discrete I/O applications.
Hardware Specifications
Parameter
Specification
Model
IS200WROBH1A
Brand
General Electric
Origin
Not specified
Weight
Not specified
Dimensions
Not specified
Operating Temp
Not specified
Power Consumption
Not specified
Product Type
Power Distribution Board
Series
Mark VIe
Functional Abbreviation
WROB
Fuse Value
3.15 A
Relay
TRLY
Redundancy Mode
Simplex, Redundant, or TMR
Terminal Board Compatibility (TMR)
TDBTH2, TDBTH4, TDBTH6
Manual Reference
GEH-6721L
Backplane Bus Communication Velocity Licenses
The IS200WROBH1A integrates into GE’s Mark VIe architecture, supporting backplane bus communication velocity licenses for deterministic data transfer. When mounted on TDBT boards in TMR applications, it can function equivalently to a terminal board combined with a contact input terminal board (TBCI), ensuring redundancy alignment and stable relay operation.
Frequently Asked Questions (FAQ)
Q: Which I/O redundancies are supported by the IS200WROBH1A? A: The board supports simplex, redundant, and TMR I/O pack redundancies.
Q: Is the IS200WROBH1A equivalent to a TBCI board? A: In TMR applications, when mounted on a TDBT board, it can provide equivalent functionality to a TBCI board.
Q: Which boards can the WROB attach to? A: The WROB can attach to TDBS, SRLY, and TDBT boards within the Mark VIe system.
Field Installation Guidelines
Mount the IS200WROBH1A securely within the Mark VIe chassis, ensuring proper connector engagement.
Verify fuse rating (3.15 A) before energizing the system.
Maintain separation between signal cabling and high-voltage wiring to minimize interference.
Apply shielded cabling with correct grounding to preserve relay and sensing integrity.
Confirm redundancy mode configuration (simplex, redundant, or TMR) during commissioning.
