Model Of The Soft Starter
Rated motor power
Please refer to
Meet the standards
Three phase power supply
AC 380V(optional 220V and 660V)
Squirrel cage three-phase asynchronous motor
When the motor is fully loaded, no more than 4 times per hour, no load or light load, no more than 10 times per hour.
At an altitude of 3000 below ground gas, the vibration stresses below 0.5G
93% no condensation or drop
Natural cold wind
Relative to vertical
Vertical installation, angle range
External dimensions of 90kw-400kw
Please see the below table for the external and installation dimensions of WSTR3000 series 90kw-400kwsoft starter.
Rated power (KW)
Connection Diagram For Main Circuit Of WSTR 3000 Soft Starter
Terminal Configuration Diagrams
Terminal diagram of the main circuit
|1) WSTR3005-3075||WSTR 3090-3400|
2)Terminal diagram of the control circuit
3)Terminal connection of the control circuit
Why Choose Us
WSTRD series Motor Starter has a Chinese & English LCD display to real-time display current, voltage and other operating status. The help information can be assessed when the soft starter is not in the soft start/ soft stop status or the setting status; press Yes(button for confirmation), then press the up/down buttons to read the prompt messages.
Four-digit voltmeter, used to test the voltage of the three phase AC power
Indicate the specification of the soft starter
Indicate that the latest fault information is zero
Indicates no occurred fault information
Indicates the occurred fault information Err0r06
indicates no fault information
Indicates the software version of the product is Ver4. 2
The total times of successful starting
Time used in last soft start(whether succeed or not)
Note: HI-H9 saves the recent 9 fault information in the recursive method
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
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.
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
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.
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
MODBUS Communication Protocol
Modbus is a kind of serial asynchronous communication protocol with RS485 as the physical interface. Being designed for Modicon PLC, it has the structural features of PLC. In network control, it can read and write the PRS 3000 as if it were a PLC. It can project the start and stop control, status information (current, fault etc.) and function parameters to the holding register (4:XXX). Its read and write control shall be conducted through the PL master station. When connected to other Modbus equipment, connection should be conducted as per the diagram below:
● Yueqing Winston electric co., LTD. (Winston inverter), founded in 2010, is a high-tech enterprise specializing in the development, production and sales of inverters.In the process of product research and development, the company always adheres to the production purpose of quality first, and adopts the world-class high-tech (such as DSP technology, current vector technology, IPM) to professionally produce and sell frequency converters and elector-mechanical electronic products.The product has four characteristics of high efficiency, small size, little noise and ultra-stable performance.The products are widely used in all kinds of automatic mechanization equipment in China and abroad.
● The company has a rigorous experimental team to develop and produce the latest and most practical products
● One years’ guarantee for free from the date of delivery . Besides, any of the spare parts can be supplied , during the guarantee period and after the guarantee period.If you have any questions, please contact our customer service.
● 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.
● We have customers from all of the world, and we hold exhibitions in different country.
Q: What's your warranty ?
A: Two years
Q: Can I become an Agent / Dealer of products?
A: Welcome! But please let me know your Country/Area first,We will have a check and then talk about this.If you want any other kind of cooperation,do not hesitate to contact us.
Q: Can I get frequency motor soft starter samples?
A: Yes ,we can offer samples and refund the sample fee when place order formally but freight is on you.
Q: What is delivery time?
A: Prompt delivery normally for sample orders and 15 days for mass production.