The frequency of the non-variable frequency motor needs to be set artificially (fixed frequency), and the number of runs cannot be too many, otherwise the motor will heat up in light and the motor will burn out in heavy cases.

1. The frequency of the non-variable frequency motor needs to be set artificially (fixed frequency), and the number of runs cannot be too many. Otherwise, the motor will heat up and burn down.
The consequences are: poor user experience, seriously affecting the user's favorable impression of the enterprise; The factory has to send special personnel to repair it. To be honest, the cost of a trip to other provinces may exceed the price of a motor.
Therefore, we generally try our best to allow users to use variable frequency motors. On the one hand, the motor has a long life and a good user experience, which increases users' favorable impression of the enterprise; On the other hand, the factory saves after-sales maintenance costs.
2. The variable frequency motor lift door is more flexible in control and smoother in use.
The fixed-frequency motor lift door is realized by frequently starting and stopping the motor, so it is difficult to control the opening and closing limit of the door during operation, causing the motor to heat up, while the variable-frequency lift door can control the operating power of the motor and is more stable to use.
3. Variable frequency motor is more energy-saving
The energy efficiency ratio of ordinary DC frequency conversion lift gate is about 40% higher than that of fixed frequency lift gate, but we often do not feel it. The reason is that ordinary motors need to be started/stopped repeatedly, but fixed frequency motors run at rated power and cannot increase power when room temperature does not reach a predetermined temperature, and reduce power when reaching a predetermined temperature to realize constant temperature work. Therefore, it is easy to cause the temperature of the motor to change from cold to hot in the process of opening and closing, and cause the consumption of electric energy.

Key words:Qingdao fast door; Qingdao Industrial Lift Gate