Servo Amplifier (Sva-iii-m)

Our range of Servo Amplifier (SVA-III-M) is a box type amplifier, which is a SVA-III board type amplifier integrated with standard 19-inch power chassis. Its controlling functions are same with that of SVA-III board type amplifier. It is mainly for controlling 3-stage valve with LVDT position sensor, has a LVDT demodulator circuit, and realizes closed-loop controlling with the inner loop of the servo valvea s coil, and is also of PID controlling of outer loop. By different settings of the jumping switch, it can also be used for controlling closed loop of position formed by a 2-stage servo valve and LVDT sensor. It is furnished with an integrated linear power supply. You can supply AC220V directly. It uses a standard casing. The front board ammeter indicates the valvea s coil current for easy observation in commissioning.

Main Technical Parameters:
Power supply: AC220V
Servo amplifier
Analogue input: A 10V, 0-10V, 4-20mA
Load capacity: A 100mA, 100IC
Proportional gain: 5-300mA/V
Integration gain: 8-4000mA/V-sec
Differential gain: 0.04-4mA/V-sec
Inner loop gain: 10-200mA/V
Oscillator
Frequency: 100-2500Hz
Amplitude: 2-11Vpp
Demodulator
Ripple: <40mVp-p (within given excitation frequency)
Gain: 1-10Vdc/Vp-p
Operation range: 0a -50a
Outline size: 198A 132A 225 mm