固定式升降平台起动时一升速就跳闸，这是过电流非常严重的表象，首要检查工作机械是不是有卡住表象，负载侧是不是短路，变频器功率模块是不是损坏，电动机的起动转矩是不是过小，拖动不起来。
Fixed lifting platform when starting a speed up on the trip, this is the current very serious phenomenon, the primary inspection machine is not stuck phenomenon, load side is not short circuit, inverter power module is not damaged, starting torque of the motor is not too small, do not drag up. 

固定式升降平台运动期间跳闸，首要检查：升速时间是不是设定太短，需加长加速时间；减速时间是不是设定太短，需加长减速时间；转矩赔偿(U/F)设定太大，然后致使低频时空载电流过大；电子热继电器整定不当，动作电流设定得太小，致使变频器误动作。
 During the trip, the movement fixed lifting platform first check: speed up time is not set too short to lengthen the acceleration time and deceleration time is too short; not set, take longer deceleration time; torque compensation (U/F) set is too large, then the resulting low frequency no-load current is too large; the electronic thermal relay setting improper action current setting is too small, resulting in inverter malfunction.