What should I do if the inverter motor forgot to connect the cooling fan?

Inverter motors can be controlled according to the following schemes -- fan motors manufacturers:

Install a temperature probe on the motor to detect the temperature of the motor. For whatever reason, as soon as the motor temperature rises to a certain high level, the entire system stops working. At the same time, we also installed thermal relays and contactors for the fans. The normally open point of the thermal relay enters the PLC, and the contactor is controlled by the PLC. When the motor turns, the fan turns, the motor stops, and the fan stops after a certain time delay. If the thermal relay trips, the system also stops working.

Therefore, this is also the most reliable method at present. If feasible, it is recommended to use the answers provided by the Bangbang Home Service Platform. Hope it helps you.

Connect a cooling fan even in the environment you mentioned, low ambient temperature may not necessarily replace forced cooling by the fan, unless you have passed the experimental test yourself and have enough evidence that the fan can be used.

What should I do if the inverter motor forgets to connect the cooling fan? How to connect the fan of the inverter motor?

For long-term maintenance of the motor, a cooling fan needs to be installed according to the operation of the variable frequency motor. If the motor runs at low frequency for a long time, more cooling is required. Otherwise, the insulation of the inner wires will degrade due to prolonged overheating, eventually causing damage to the motor.

It is recommended that the cooling fan of the variable frequency motor be controlled separately. It is convenient to use a solid control, and the wiring is simple. It is directly installed in the motor junction box. Small size, reliable control, fully automatic operation, delayed fan shutdown.

What should I do if the inverter motor forgets to connect the cooling fan? Where are the terminals of the inverter motor cooling fan connected?

The fan of the inverter motor should be powered independently, and the output power of the inverter cannot be used.

What should I do if the inverter motor forgets to connect the cooling fan? Can the inverter motor be connected to the fan?

impossible. Because when the frequency drop is very low, the speed of the fan is also reduced a lot. At this time, if the load is heavy or the workplace temperature is high, the motor may be burned due to insufficient heat dissipation capacity. This is why the cooling fan of the inverter motor must be powered by a separate power supply to ensure cooling capacity. I suggest you don't take chances. If you burn a variable frequency motor, that's a bad thing.