Moog Inc

1.Core Functions

Signal conditioning & conversion: Receive analog command signals (±10V, 4-20mA) from upper-level motion controller or PLC; filter and normalize input signals.www.plcva.com
Precision current output drive: Convert processed command signals into high-stability bipolar current to drive the torque motor of two-stage electro-hydraulic servo valves.
Closed-loop control processing: Accept spool position feedback signal (LVDT) from servo valve, form closed-loop regulation to improve linearity, reduce hysteresis and enhance positioning accuracy.
Gain, offset and dither adjustment: Support manual or software tuning of system gain, zero offset and dither signal. Dither helps reduce static friction of the servo valve spool.
Fault detection & alarm: Monitor power supply, output overcurrent, signal disconnection and feedback abnormality; output relay alarm signals for system interlock protection.
Enable / interlock control: Built-in enable circuit, emergency stop and safety interlock logic to cut off drive current under unsafe conditions.
Isolation protection: Galvanic isolation between input side and power drive side to suppress EMI interference in industrial hydraulic sites plcva.com.

MOOG Servo Valve Amplifier Board

External drive for MOOG mechanical feedback servo valves: Especially for G631, G761 and other servo valves without integrated onboard electronics.
Hydraulic closed-loop control systems: Position, speed, force and pressure control for hydraulic cylinders and hydraulic motors.
Material testing equipment: Fatigue testers, universal tensile testing machines, dynamic loading test benches.
Motion simulation systems: Hydraulic motion simulators for aerospace and vehicle simulation platforms.
Metal forming machinery: Precision hydraulic presses, rolling mill gap and tension control.
Aerospace ground test rigs: Aircraft actuator and structural component hydraulic loading test systems.