The GE IS200TSVOH1B, also cataloged as the IS200TSVOH1B Terminal Board, operates as a dedicated hardware component for servo valve signal termination within Mark VI control network platforms.

Suffix Breakdown & Model Matrix

The model identifier IS200TSVOH1B indicates a specific hardware revision within the Mark VI terminal board series. The "IS200" prefix denotes the Mark VI system component family, while the "TSVO" designation identifies the board as a dedicated Servo Valve interface. The "H1B" suffix represents the hardware version and physical layout configuration; functional variations between H1A, H1B, and H1C revisions generally pertain to component mounting footprints and minor circuit path optimizations.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks

The IS200TSVOH1B integrates into the Mark VI control architecture, facilitating precise control of hydraulic servo actuators. The board handles the conversion of processor-generated command signals into current-regulated outputs required for valve positioning. Connectivity between the terminal board and the I/O processor is facilitated via the system backplane, ensuring signal path integrity for high-speed deterministic control loops. Firmware compatibility is dictated by the associated I/O pack firmware, which must be cross-referenced to support the specific current ranges required by the installed servo valve hardware.

Frequently Asked Questions

Q: What is the primary function of the onboard feedback circuitry?

A: The circuitry is designed to process LVDT or other position feedback signals from the servo valve, providing the I/O processor with the necessary data to close the control loop and maintain accurate valve positioning.

Q: Are there specific shielding requirements for field wiring connected to this board?

A: Yes. All feedback signal wiring must utilize twisted-shielded pair cabling. The shield should be terminated to the designated chassis ground point on the board to prevent electromagnetic interference from impacting the sensitive servo control signals.

Field Installation Guidelines

• Confirm that the I/O rack power is completely isolated before attempting to seat or remove the IS200TSVOH1B to prevent backplane damage.
• Inspect the terminal block pins for any signs of oxidation or mechanical stress before landing field wires.
• Ensure proper torque application to all terminal screw connections to avoid intermittent contact, which can result in valve hunting or instability.
• Verify that the valve drive output impedance matches the requirements of the servo actuator to ensure sufficient current drive capability without overheating the board components.