- Implements four electrohydraulic servo-valve control loops
- Processes LVDT/R position feedback for closed-loop valve positioning
- Interfaces with documented TSVO or DSVO terminal-board arrangements
IS200VSVOH1B is a Mark VI VSVO board used in turbine electrohydraulic control assemblies.
The board combines servo-current drive, position-feedback processing, loop regulation, relay protection, and diagnostic monitoring for controlled valve movement.
Before installation, match the H1B identity, rack architecture, terminal board, feedback channels, servo-current selection, cable connections, and validated control constants.
Availability, condition, price, and shipping time for IS200VSVOH1B are confirmed during quotation.
General Electric IS200VSVOH1B Mark VI Servo Control Board Manuals, Product Family, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Connect and verify the documented LVDT/R feedback channels
- Confirm excitation, polarity, scaling, and redundant-channel agreement
- Calibrate position only under the approved valve procedure
- Match the configured servo-current range to the installed actuator
- Preserve regulator constants, command limits, and null-bias settings
- Verify suicide-relay and output-enable behavior before motion
- Identify whether the installation uses TSVO or DSVO hardware
- Preserve J5 and VME-rack connection arrangements during replacement
- Match JR1, JS1, and JT1 paths in a TMR configuration
- Electrohydraulic positioning of steam-turbine control valves
- Electrohydraulic positioning of turbine fuel-control valves
- Closed-loop servo-actuator control using LVDT/R position feedback in a Mark VI system