1. Reference Voltage Adjustment (Starting Voltage) The reference voltage is the essential condition for the device to start. After adjusting the reference voltage, the motor should begin rotating immediately when power is applied, and the load should start right away. If the motor doesn’t rotate after being powered on, the reference voltage setting should be increased. On the other hand, if the starting speed is too fast, the reference voltage should be reduced. It's recommended to adjust the reference voltage several times until the motor starts smoothly as soon as the voltage is applied. In our factory, we use a soft starter with an 110kW motor. During testing, when the reference voltage was set to 75% of the rated voltage, the starting current was 500A, and the motor started quickly. When it was adjusted to 4JD% of the rated voltage, the motor started more slowly. The current gradually increased from 200A to 600A, and then stabilized once the motor reached full speed, which met the requirements of a soft start.
2. Starting Time Adjustment The starting time adjustment has a direct impact on the motor’s starting torque. A soft starter allows the motor to ramp up from the initial voltage to full voltage over a set period, typically between 0.5 and 240 seconds. For example, if a pump starts by increasing flow from 0 to 100%, the water hammer effect can be minimized. The time taken to accelerate the pump speed can also be controlled by adjusting the soft starter’s start time. The optimal start time depends on the specific load conditions. It is necessary to conduct multiple tests to achieve smooth and uniform acceleration during the startup phase. This ensures that the motor starts efficiently without excessive stress or instability.
(Word count: 520)Insert Type Rotor,Insert Type Dc Rotor,Insertion Type Variable Frequency Rotor,Variable Frequency Dc Rotor
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