Description ：

RWS-6800 soft starter/cabinet adopts a new generation of soft starter technology, and adaptive control realizes the control of the motor acceleration curve and deceleration curve to an unprecedented level.The soft starter reads the data of the motor in the process of starting and stopping, and then adjusts to achieve the best effect. Just select the curve most suitable for your load type, and the soft starter will automatically ensure that the load is accelerated in the most stable way possible.

Main function introduction:

• Open-phase protection

• Multiple startup modes

• Under-voltage and over-voltage protection
  

• Reducing Starting Current and Mechanical Impact

• Multi-Protection and Energy Efficiency Optimization

Device structure:

External connection diagram

Q:What is the difference between VFD and soft starter?

A:Function: VFD can adjust the speed, starting and braking of the motor by changing the frequency and voltage of the power supply. The soft starter is mainly used for the smooth starting of the motor to reduce the impact of the starting current, and it does not involve speed regulation.
Application scenarios: VFD is suitable for occasions where speed control is required, such as industrial production lines, air - conditioning systems, etc. The soft starter is suitable for equipment that only needs smooth starting and has no special requirements for speed, such as large - scale water pumps and air compressors.
Energy - saving effect: VFD saves energy through precise speed regulation with remarkable results. The energy - saving of the soft starter is reflected in reducing the energy consumption during starting, and the overall energy - saving level is lower than that of VFD.

Q:How does a soft start motor starter work?

A:The soft - start motor starter is based on power electronics technology and often uses a thyristor voltage - regulating circuit to work. During startup, it gradually increases the conduction angle of the thyristor according to the set curves (such as linear rise, ramp rise, constant current, etc.), so that the voltage applied to the motor gradually increases, and the motor speed rises smoothly. When the motor speed approaches the rated speed, the rated voltage is output, and the thyristor is fully conducting. In some cases, a bypass contactor is used to short - circuit the soft - starter. During shutdown, the voltage can also be decreased according to the curve, allowing the motor to decelerate smoothly.