Company:BMTI PRECISION MECHATRONICS CO.,LTD
Address:No.4 Wangjing Road, Chaoyang District, Beijing, China
Postcode:100102
Tel:+86-10- 64739667
Fax:+86-10- 64739665
Email:gwsales@jcsjm.com
Home » Products » Amplifier » Servo Amplifier » SVA-III-S Servo Amplifier
SVA-III-S Servo Amplifier
SVA-III-S Servo Amplifier SVA-III-S Servo Amplifier

SVA-III-S Servo Amplifier

Description
SVA-III-S is a board type electro hydraulic servo amplifier with position demodulator, which is mainly for controlling 3-stage valve with LVDT position sensor. It has LVDT demodulator circuit, and realizes closed-loop controlling within the inner loop of servo valve's coil.
Moreover, Board servo amplifier is also for PID controlling for external loop. By setting of jumping switch, it can also be used for controlling closed loop of position formed by a 2-stage servo valve and LVDT sensor.

Application
SVA-III-S electro hydraulic servo amplifier are specially used for driving and controlling electro-hydraulic servo valves. The amplifiers are mainly for high accuracy controlling of electro-hydraulic servo valves like nozzle flapper servo valves, and jet pipe servo valves, etc. In a hydraulic system, it is possible to control physical parameters, like position, speed, acceleration and force by using various hydraulic devices and measuring sensors. For example: Valve-controlled cylinder, valve controlled motor, valve-controlled pumps, etc.

Features of Board Servo Amplifier
1. 3-stage servo valve closed-loop controlling with LVDT position sensor
2. Setting and selecting outerloop PID control by a jumping switch
3. Limiting of output current
4. Adjustable inner loop gain
5. Easy and quick front-board testing and parameter adjusting potentiometer

Parameters of Electro Hydraulic Servo Amplifier
Power supply
V
DC±15 or ±24
Servo amplifier
Analogue input
 
±10V, 0-10V, 4-20mA
Servo valve driving capacity
 
±100mA, 100Ω
Prorortional gain
mA/V
5 to 300
Integration gain
mA/V-sec
8 to 4000
Differential gain
mA/V-sec/v
0.04 to 4
Inner loop gain
mA/V
10 to 200
Disturbance signal
 
200 Hz 5Vpp
Oscillator
Frequency
Hz
100 to 2500
Amplitude
Vpp
2 to 11
Demodulator
Ripple
mVp-p
<40(within given excitation frequency)
Gain
Vdc/Vp-p
1 to 10
Operation range

0 to 50
Outline size
mm
100 × 160

Related Products