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Why Choose Safesav

Professional soft starter and frequency inverter supplier and manufacturer in China.

10 Years

We have been in this industry for over ten years. We focus on technology development.

Certificate

CE CERTIFICATE,ISO9001,CCC CERTIFICAT .

Vision

To be a happy corporation benefiting human society

Mission

To create a greener world with our safe and energy-saving technology.

Certificate

Professional soft starter and frequency inverter supplier and manufacturer in China

Our products have been certified by international accounting standards – Q, Sampo, CCC, and other certifications.

Product

Our research and development center collaborates with Shanghai University and Fudan University.

Frequency Inverter

Frequency inverters are used in any operation in which there is mechanical equipment powered by motors. The inverters provide extremely

Soft starter

A motor soft starter is a device used with AC electrical motors to temporarily reduce the load and torque in the power train and electric current surge of the motor during start-up.

Induction Motor

A motor is a device that converts electromechanical energy. The device that converts mechanical energy into electrical energy is called a generator.

Replacement

Reducing the conducted emission from inverter to power network.Low cost design, reduce the cost of users Improve the relibility of the whole systemSuitable for power electronic equipment such as inverter.

0.75kw-450kw input current 8.3-789A output current 4-820A Single/Three phase VFD for Industrial Fan

0.75kw-37kw 220/400/500VAC 50/60Hz IP21 By pass relay built-in Soft Starter for Water pump

Safesav 0.75kw~400kw 50/60HZ Single phase/Three phase 220V/380V power supply VFD for Water pump

FAQs

Answers to youur questions

One

The user finishes using the soft starter but the bypass contactor does not pull closed.The causes may be as follows:

(1)In thestartingprocess,anerror action is caused due to the relatively low value setting of the protection device.(Just re-adjust the protective device)

(2) In the debugging,the parameters of the soft starterare improperly set.

(3)The control lineis inbad connection.(Checkthe control circuit)

(4) The control panel of the soft starter fails.(Contact with the factory of the soft starter)

The bypass of the soft starter cannot be closed

Two

In the debugging process of the sofe starter, there reports a non-full-phase fault, with failure indicator lighted but the motor no responding.The cause of the malfunction may be as follows:

(1) The soft starter intrigues protection action dueto thenon-full-phase fault of thepower supply(check the power supply)

(2) No load is connected to the output terminal of the soft starter (The soft starter will not work properly until the output terminal is connected to a load.)

(3) F2 should be set to 0 using multiple control mode.

(4)The internal control lable silicon trigger line of the soft starter is in bad connection or the control board is in fault. (Contact with manufacturer)

The non-full-phase fault of the soft starter

Three

The switch jumps off occasionally during the start. The reasons can be as follows:

(1) The setting value of the long time delay of the air switch is too small or the model of the air doesn’t match the motor. (Enlarge the parameter of the air switch or choose new type of air switch).

(2) The starting voltage parameter of the soft starter is too high or the starting time is too long. (Lower the starting voltage properly or shorten the starting time. )

(3) The soft starter tends to issue wrong instructions and induce early bypass due to the relatively big fluctuation of the power grid voltage in the start process. (It is suggested that users do not start high power motors at the same time.)

(4) Full load start (Try to reduce load when starting. )