What Are The Inspection Methods Of Gear Motor Overload?

When the motor is running, a constant load of excessive current will negatively affect the life of the motor. To ensure proper motor operation, motors should be checked for overloads on a regular basis. The inspection procedure for gear motor overload is as follows.

1.determine if the gear motor is hot; if not, check the electronic thermal protection function of the inverter to see if the preset is reasonable. For example, if the inverter still has spare capacity, the preset value of the electronic thermal protection function should be relaxed. If the temperature rise of the motor is too high, and the overload that occurs is a normal overload, it means that the load of the motor is too heavy. At this point it is first necessary to be able to correctly increase the transmission ratio and reduce the pressure on the gear motor shaft. If you can improve the transmission ratio, you should improve the transmission ratio. If you cannot improve the transmission ratio, you should increase the capacity of the motor.

 2. Confirm whether the three-phase voltage on the motor side is balanced, if the three-phase voltage on the gear motor side is not balanced, you should also check whether the output side of the inverter is balanced. If it is, the problem is in the inverter itself. If the output voltage of the inverter is balanced, then the problem may be in the line from the inverter to the motor. Check that all screws holding the terminals are tight, and if there are any contactors or other electrical devices in the path between the inverter and the motor, remove them. In addition, you should verify that the terminals of the electrical devices are tight and well connected.

3. After balancing the three-phase voltage on the motor side, you must make adjustments to the operating frequency. If the operating frequency of the geared motor is low and no vector control is used (or not used at all), first reduce the U/f ratio. If the load can still be driven after the reduction, this indicates that the original preset U/f ratio is too high and that the peak excitation current is high. The current can be reduced by lowering the U/f ratio. If the load cannot be carried after the reduction, the capacity of the inverter should be increased. If the inverter has the capability if the inverter supports vector control capability, the vector control mode should be used.

The above is the Vshida micro motor for you to introduce the gear motor overload check method, I hope it will help you, more related information welcome to consult us at any time!