GE Fanuc IS200VROCH1BBR PAB Board

Description

The GE Fanuc IS200VROCH1BBR serves as the primary IS200VROC Relay Output Board utilized to execute heavy-duty physical switching commands within General Electric Mark VI turbine control system platforms. The hardware functions as the core processing card that drives electromechanical pilot relays, providing physical contact execution to actuate external solenoids, motor starters, and interlock isolation loops across the turbine control network.

Hardware Specifications

• Model: IS200VROCH1BBR
• Brand: GE Fanuc (General Electric)
• Origin: United States
• Weight: 1.8 kg
• Dimensions: Standard VME size, 33.0 cm high x 17.8 cm wide
• Operating Temp: 0 to 65 deg C
• Relay Output Channels: 12 electromechanical relay outputs
• Board Revision: H1BBR (Conformal coated, specific functional revision)
• System Series: Mark VI Control System

I/O Density Scaling and Deterministic Networks

This board interfaces directly with the central processing unit via a high-velocity VME backplane bus, supporting the control system's localized I/O density scaling requirements. Solenoid command signals travel through Profinet / EtherNet/IP deterministic networks parameters down to the VME rack, where the card processes the commands and manages firmware flash compatibility parameters to coordinate rapid, microsecond-range relay contact transitions while maintaining complete diagnostic supervision of the driver coils.

Frequently Asked Questions

Q: What specific functional attributes does the "BBR" suffix indicate for this board variant? A: The "BBR" suffix indicates a specific manufacturing revision history that includes standard industrial conformal coating for enhanced atmospheric protection against conductive dust, along with precise backplane component updates tailored for high-vibration turbine decks.

Q: Does this board support onboard feedback diagnostics for verifying physical relay states? A: Yes. The hardware includes auxiliary voltage-sensing circuits on each output channel that continuously verify the physical position of the relay contacts against the commanded state from the processor, throwing a system diagnostic alarm upon detecting any contact welding or failure to transition.

Field Installation Guidelines

• Insert the board vertically into its allocated slot within the Mark VI VME control subrack. Apply uniform pressure until the rear connectors seat into the backplane, then lock the top and bottom mechanical injector handles.
• Tighten both the upper and lower faceplate retention screws to exactly 0.5 Nm to maintain structural stability, guarantee a reliable frame ground connection, and eliminate potential module backplane shifting.
• Verify that external snubber circuits are installed across any highly inductive external DC field loads to suppress inductive kickback voltages, protecting the onboard mechanical relay contacts from premature pitting and erosion.