The cooling fan is the key component of the torque motor product, which achieves the cooling effect by forced air cooling, so the reliability of the character quality is particularly important380V/50HZPower frequency power supply is independent, the power of the fan comes from a separate power supply, can not be from the main motor line. Let's take a simple look at the wiring of the fan.

       The wiring method is generally star connection, and the wiring method of the torque motor cooling fan is the same as that of the ordinary motor, there is no difference, but it can not be connected with the motor. Like the frequency conversion motor, some are also connected to the cooling fan, the main motor is driven by the inverter, the cooling fan should be connected to the power frequency power supply, and then connected to the cooling fan-The control line of the inverter, so that the motor starts the cooling fan will rotate together.

       The cooling fan can not be connected with the motor in parallel, the torque motor is able to achieve the demand of blocking, the reason for the cooling fan is so, if the motor is not running near the rated frequency, the fan motor speed is proportional to the frequency, the air volume is proportional to the square of the fan speed, then the speed is basically about the same as the motor speed. It will cause that in the case of low frequency, the cooling fan is low speed, the air volume is insufficient, there is no way to dissipate heat, and the heat dissipation effect of the motor will be greatly reduced, which is no different from the ordinary motor fan directly installed on the motor shaft.

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