MOOG Servo Valve Amplifier Board
- Warranty： 365 days
- Quality: Original module
- Condition： New / Used
- Warehouse: Spot
- Delivery time: Shipped in 3 days after payment
- Mailbox：plcvarious@foxmail.com
Introduction
1.Core Functions
The amplifier board acts as the electronic controller between upper-level controller (PLC / motion controller) and Moog electro-hydraulic servo valve.www.plcva.com
- Command signal reception & conditioning Accept standard analog setpoint signals: ±10 V voltage or 4–20 mA current from PLC or motion controller; filter noise and convert signal level.
- Closed-loop error calculation (P / PI / PID control) Compare the command signal with feedback signal (LVDT spool position feedback, cylinder position / pressure / force feedback). Compute error and run proportional-integral control algorithm to generate drive signal.
- Power current driving for servo valve coil Convert low-level control voltage into high-precision driving current to energize the torque motor / linear force motor inside servo valve, to shift the spool position.
- LVDT signal demodulation For EFB (Electrical Feedback) servo valves, the board excites and demodulates LVDT (Linear Variable Differential Transformer) signal to read real-time spool position.
- Dither signal generation Produce adjustable high-frequency dither signal superimposed on drive current, to reduce valve static friction and hysteresis, improve response linearity.
- Protection & diagnostic Integrate over-current protection, short-circuit protection, power supply reverse polarity protection; LED indicator for fault status, zero offset and gain adjustment via potentiometer or DIP switch.
MOOG Servo Valve Amplifier Board
2. Applications & Purpose
Core Purpose
It realizes high-precision electro-hydraulic closed-loop control, converting electronic control command into hydraulic power output, to precisely control position, velocity, pressure or force of hydraulic actuators (hydraulic cylinder / hydraulic motor).plcva.com
Typical Industrial Application Fields
- Material test & structural test benches: material fatigue tester, shaking table, aerospace component test rig.
- Metal forming machinery: hydraulic press, injection molding machine, steel rolling mill.
- Aerospace & defence: flight simulator, actuator test system.
- Marine & offshore equipment: ship hydraulic control system.
- Energy industry: gas turbine control, valve actuation system.
Working principle overview
Upper controller sends target command → Amplifier board compares command and feedback signal → Generate error signal → Amplify to drive current → Servo valve spool moves → Regulate hydraulic oil flow → Hydraulic actuator moves → Position/pressure sensor feeds real status back to amplifier board to form closed loop, until actual value matches setpoint.plcva.com
MOOG Servo Valve Amplifier Board
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