齿轮减速电机过载的检查方法
1、检查齿轮减速电机是否发热，如果电机的温升不高，则首先应检查变频器的电子热保护功能预臵得是否合理，如变频器尚有余量，则应放宽电子热保护功能的预臵值。
如果电机的温升过高，而所出现的过载又属于正常过载，则说明是电机的负荷过重。这时，首先应能否适当加大传动比，以减轻齿轮减速电机轴上的负荷。如能够加大，则加大传动比。如果传动比无法加大，则应加大电机的容量。
2、检查电机侧三相电压是否平衡，如果齿轮减速电机侧的三相电压不平衡，则应再检查变频器输出端的三相电压是否平衡，如也不平衡，则问题在变频器内部。
如变频器输出端的电压平衡，则问题在从变频器到电机之间的线路上，应检查所有接线端的螺钉是否都已拧紧，如果在变频器和电机之间有接触器或其他电器，则还应检查有关电器的接线端是否都已拧紧，以及触点的接触状况是否良好等。
3、电机侧三相电压平衡，则应了解跳闸时的工作频率
如齿轮减速电机工作频率较低，又未用矢量控制（或无矢量控制），则首先降低u/f比，如果降低后仍能带动负载，则说明原来预臵的u/f比过高，励磁电流的峰值偏大，可通过降低u/f比来减小电流；如果降低后带不动负载了，则应考虑加大变频器的容量；如果变频器具有矢量控制功能，则应采用矢量控制方式。
产品英文详情介绍
gear inspection method of a motor overload, check whether the gear motor heating, if the motor temperature is not high, the first check of the electronic thermal function of the inverter pre ge obtained is reasonable, as the drive margin there is should be relaxed pre-ge value of the electronic thermal protection function. if the motor temperature is too high, and overload occurring and is a normal overload, then the motor is overloaded. at this time, first gear ratio can be appropriately increased, in order to reduce the load on the motor shaft of the reduction gear. such as the ability to increase, the increased transmission ratio. if you can not increase the transmission ratio, should increase the capacity of the motor. 2, the motor-side check phase voltage is balanced, if the gear motor side unbalance should then check the three-phase voltage inverter is balanced output terminal, such as uneven, the problem inside the drive. the balanced output terminal voltage inverter, the problem on the line between the inverter to the motor, check whether all the terminal screws are tightened, or if other electrical contact between the inverter and the motor, the further should the inspection of the electrical terminals are tightened, contacts and the contact condition is good and the like. 3, the motor-side three-phase voltage balance, when the trip should be understood as a lower operating frequency of gear motor operating frequency, but not with vector control (vector control or without), is first reduced u / f ratio, if still reduced can drive the load, then the pre-ge of the original u / f ratio of the peak value is too high, the exciting current is too large, the current can be reduced by lowering the u / f ratio; if the load reduction with fixed, should be considered to increase the inverter capacity; if the inverter has a vector control, the vector control method should be used.
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