Intelligent Soft Starter

Model Of The Soft Starter

Data-Sheet

Basic Functions

External Dimensions

External dimensions of 5.5kw-75kw

Please see the below table for the external and installation dimensions ofWS1R3000 series 5.5kw-75kw soft starter. 

External dimensions of90kw-400kw

Please see the below table for the external and installation dimensions of WSTR3000 series 90kw-400kwsoft starter. 

Connection Diagram For Main Circuit Of WSTR 3000 Soft Starter

Terminal Configuration Diagrams

Terminal diagram of the main circuit

2)Terminal diagram of the control circuit

3)Terminal connection of the control circuit

Why Choose Us

WSTR 3000 series soft starter possesses complete protection functions to protect the operation security of the soft starter and the motor. Here is Motor thermal protection tripping time curve based on IEC60947-4-2 standard is shown as follows:

Starting Mode

Current limiting starting mode 

a)The soft starter will be under current starting mode when code F9 is set to O (current limiting). Figure shows the current change wave of the motor under the current limiting mode. 11 is the set starting current limiting value, when the motor starts, the output voltage will increase rapidly until the current of the motor reaches the set current limiting value 11, and the current of the motor will be kept under such value, then with the increasing of the output voltage, the motor will speed up gradually, and when the motor reaches the rated rotation speed, the bypass contact will close, the output current will drop rapidly to the rated current IE of the motor or less, and the whole starting process completes. 

b)When the load of the motor is relatively light or the set current limiting value is relatively high, it will be normal that the maximum current may not reach the set current limiting value. Generally, current limiting starting mode applies to the occasions where there're strict limiting requirements on starting current.

Free stop

a) The soft starter will be under free stop mode when code F2 is set to O(free stop). Under this type of stop mode, upon receiving the command, the soft starter will disconnect the bypass contactor immediately and prohibit

the voltage output of the thyristor of the soft starter, and then the motor will gradually stop due to load inertia. The code can be set to this mode when the soft starter is under the one-to-N connection method to avoid the phase loss fault alarm during output switching. 

b)Generally, in order to prolong the service life of the soft starter, free stop mode should be selected if there' s no necessary for soft stop. The free stop mode fully inhibits instantaneous output and thus it can prevent the instantaneous large current shock in the special application occasions. 

There are six different starting modes with the WS1R 3000 series soft starters which apply to various complicated motors and loading situations, among which users can select according to different application ranges.

Technical Characteristics

1.Unique SCR trigger closed-loop control algorithm

Unique SCR closed-loop control, specially designed for standard and heavy loads. The user can select the current limit start and the voltage ramp start according to the load condition to achieve an absolutely smooth torque-free oscillation start effect.

2.Control accuracy, real-time efficiency

High-performance CORETX-M3 32-bit core CPU for center control, fast speed, high precision, strong anti-interference ability

3.Beautiful appearance

Patented main circuit three-in and six-out structure, built-in current transformer scheme, convenient wiring and high reliability

4.Optional standard MODBUS-RTU protocol

Integrated advanced protection.It has protection functions such as input and output phase loss, overload, overcurrent, phase current imbalance, thyristor over temperature, etc., to protect the motor and related equipment in all directions.

5.Full refractory

90kw or less is a fully molded shell structure, processed with flame-retardant ABS material. The upper cover of 90KW and above is made of plastic shell structure, and the main frame is made of aluminum-zinc plate material. It has heat resistance and corrosion resistan

6.CE.

7.External lead panel

The panel can be externally led to the operating surface of the device for remote operation through the fuselage interface, which is convenient for on-site use.

8.Simple maintenance

A monitoring signal coding system consisting of a 4-digit digital display that monitors the operating conditions of system equipment 24 hours a day, while providing fast fault diagnosis

About Us

Yueqing Winston is a known brand, a leading manufacturer and exporter for off-grid which has been this industry for 10 years. Our factory was established in 2010. We provide power solution service to our clients. All of our customers are located all over the world and they are very satisfied due to our excellent price-quality ratio.

With special cultivation of employees, high investment on production facilities and R&D as well as a wide range of products, we advocate "technology innovation, business honesty and trust and quality first" as our basic principle, trying to develop into a world-class electrical manufacturer with constant efforts. 

We will arrange the goods packaging, choose the transport routes in a fast and economical mode;Monitor all goods circulation, track and ensure the quality of transportation; provide fast, safe logistics channels.

We are an ISO9001:2000 certified company. We have obtained many certificates, such as CCC, CE, CB, GS and RoHS. Stability, expertise and technological innovation are the core stones of our business strategy. Aiming at reliable product quality and the highest customer satisfaction, we are consistently deepening enterprise inner reform and fully carry out a quality guarantee system.

If you need any help, please contact us immediately. And we would be very grateful if you have any comments.

FAQ

Q: Do you have any foreign agents?

A: Yes, at present we have agents in Indonesia and Malaysia, developing more agents is part of our next plan.

Q: How to calculate power? Example: The motor used is 100 horsepower (HP). What is the power?

A: 1HP=0.735KW, so 100*0.735=73.5KW.

Q: Do you have waterproof SOFT STARTER?

A: Yes, we have, we can custom IP65 , IP54 waterproof SOFT STARTER , please send the specifications you need , our Technical team can customize for you , welcome to consult .

Q: Does your SOFT STARTER have an aging test?

A: Our products are subjected to a 12-hour aging test before leaving the factory, dedicated to providing quality products to customers.