GE Mark VI IS200VCRCH1BBB Discrete Input/Output Board

GE IS200VCRCH1BBB Discrete Input/Output Board

The GE IS200VCRCH1BBB, part of the Mark VI turbine control system, is a Contact Input/Relay Output Board designed to handle large volumes of discrete signals in VME-based control racks.

Technical Specifications

Functional Description

• Inputs & Outputs:
  • Accepts 48 dry contact inputs.
  • Provides 24 relay outputs for external device control (motors, lights, relay-driven equipment).
• Terminal Boards:
  • TBCI: Connects discrete input signals.
  • TRLY: Connects and controls relay outputs.
• Rack Integration:
  • Designed for VME I/O rack mounting.
  • Uses J3/J4 connectors for reliable communication and power distribution.
• Contact Inputs:
  • First 24 inputs wired to one TBCI board.
  • Inputs 25–48 require a second TBCI board.
  • Internal DC power provision eliminates need for external sources.
• Performance Features:
  • 1 ms scanning rate for real-time monitoring.
  • Sequence of Events (SOE) recorder with 1 ms resolution.
  • Contact chatter detection for transient fault reporting.
  • Pulse width detection down to 6 ms for short-duration events.

Frequently Asked Questions

• What is IS200VCRCH1BBB? A discrete input/output board for Mark VI turbine control systems.
• How are the first 24 inputs connected? Through the TBCI terminal board.
• What if more than 24 inputs are needed? A second TBCI board handles inputs 25–48.
• Is external power required? No, DC power is provided internally.
• How are terminal boards connected? Via molded cables to the VME rack processor board.
• What is the scanning rate? 1 ms, enabling precise event monitoring.