固定式升降平臺起動時一升速就跳閘，這是過電流非常嚴重的表象，首要檢查工作機械是不是有卡住表象，負載側是不是短路，變頻器功率模塊是不是損壞，電動機的起動轉矩是不是過小，拖動不起來。
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. 

固定式升降平臺運動期間跳閘，首要檢查：升速時間是不是設定太短，需加長加速時間；減速時間是不是設定太短，需加長減速時間；轉矩賠償(U/F)設定太大，然后致使低頻時空載電流過大；電子熱繼電器整定不當，動作電流設定得太小，致使變頻器誤動作。
 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.