Parameters and specifications

Application: Automatic control, especially in gas turbine control systems.

Operation: Drive the fuel/steam valve by controlling four electro-hydraulic servo valves.

Feedback mechanism: Provide LVDT (linear variable differential transformer) position feedback and LVDT excitation.

Control algorithm: Execute the loop control algorithm.

Signal input: including pulse speed flow input.

Output: two-way servo current output.

Connectors: J5 plugs on the front panel and J3/J4 connectors on the VME rack are used for cable connections.

LED indicators: There are three LED indicators on the front panel, which are used to display RUN (green), FAIL (red), and STATUS (orange, which is usually off and lights up when the alarm is generated).

TMR signal fan-out: JR1, JS1, and JT1 connectors are used to fan out TMR signals.

Protection mechanism: In case of power failure, each servo output has a dedicated suicide relay, which is used to short the VSVO output signal to the public signal and return to normal operation according to the manual reset instruction.

Size and weight

Size: 31153

Weight: 1.27kg.

trait

Efficient and stable: As part of the Mark VI series, the IS200VSVOH1B is a stable and efficient control card.

Multiple redundancy: Can be used in triple redundancy systems and simplex systems.

High integration: contains multiple relays, resistors, capacitors, inductive magnetic beads and integrated circuits.

Fault diagnosis: The output voltage, current and suicide relays of the servo system are monitored through diagnostic indicators and internal diagnostic mechanisms.