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Servo Amplifier Sva Series - China

price: contact company for price

SVA-II servo amplifier is a box type amplifier with self-contained DC

stabilized power supply, mainly for driving and one-stage closed-loop

controlling of nozzle flapper servo valve and jet pipe servo valve, etc.

It uses a portable standalone box, and it is easy to use. The front

board is provided with a potentiometer with a scale locking mechanism

for easy parameter adjustment. An ammeter is used for displaying the

valve’s coil current for easy observation in commissioning. You can

select LVDT demodulation board as necessary for controlling a closed

loop having LVDT detection sensor.

I. Main Features:

Stage-I closed loop controlling of hydraulic servo system

Output current can be up to 100mA, also over current protection is provided

The front board is easy for adjusting such parameters as zero, gain, feedback volume, and disturbance, etc., also an adjustment locking mechanism is provided.

The ammeter on the front board displays the valve’s coil current

With a built in linear DC stabilized circuit. Needs only connecting with AC220V externally.

All the power supply, valve coil and LVDT sensor use independent plug connection, and it is convenient to connect peripherals.

II. Main Technical Parameters:

power supply: AC220V

Servo amplifier

Analogue input: ±10V, 0-10V, 4-20mA

Servo valve driving capacity: ±100mA, 100Ω

Proportional gain: 5-300mA/V

Disturbance signal: 200 Hz 6Vpp

Oscillator

Frequency: 2500Hz

Amplitude: 6Vpp

Demodulator

Ripple: <40mVp-p (within given excitation frequency)

Gain: 1-10Vdc/Vp-p

Operation range: 0C-50C

Outline size: 110×225×300 mm

SVA-III-S is a board type electrohydraulic servo amplifier with position demodulator, mainly for controlling 3-stage valve having LVDT position sensor, is of LVDT demodulator circuit, and realizes closed-loop controlling with the inner loop of servo valve’s coil. Moreover, it is of PID controlling for external 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.

3-stage servo valve closed-loop controlling with LVDT position sensor

Setting and selecting outer loop PID controlling by a jumping switch

Limiting of output current

Adjustable inner loop gain

Easy and quick front-board testing and parameter adjusting potentiometer

Power supply: independent ±15V or ±15V, ±24V

Load capacity: ±100mA, 100Ω

Integration gain: 8-4000mA/V-sec

Differential gain: 0.04-4mA/V-sec

Inner loop gain: 10-200mA/V

Frequency: 100-2500Hz

Amplitude: 2-11Vpp

Outline size: 100X160mm

SVA-III-M servo amplifier 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 valve’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 valve’s coil current for easy observation in commissioning.

Easy and quick front-board testing and adjusting potentiometer

Straightforward valve coil current and power supply indication

Power supply: AC220V

Outline size: 198×132×225 mm


Company Contact:


  • Phone: 15801624867

  • Address: No. 4 Wangjing Road, Chaoyang District, Beijing, China

  • Email: Email


Published date: August 20, 2013 -

  • Business Description: BMTI Precision Mechatronics Co., Ltd. started research of pneumatic and

    hydraulic automatic control technology as early as in 1950s, and her

    research results and application level are leading in China. In more

    than 50 years, she always adheres to the road combining scientific

    research with production, and the hydraulic and pneumatic products

    researched & developed independently by her have been widely used in

    metallurgy, aerospace, shipbuilding, automobile, textile, and printing

    industry. Her modern manufacturing equipment and inspection conditions

    as well as perfect quality management system have ensured the steady and

    reliable quality of her products. She owns a professional and complete

    R&D team with rich practical experiences, and can undertake research of

    subjects specified by the state as well as development of new products,

    also complete turnkey projects for hydraulic and pneumatic subjects, and

    customize personalized solutions for the users focused at pneumatic and

    hydraulic technology.

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