升降舞台http://www.iyunsun.com/变频器定期保养检查时，一定要切断电源，待监视器无显示及主电路电源指示灯熄灭后，才能进行检查。下面济南荣凯升降机械的有关技术人员就给大家分析一下升降舞台变频器如何检查？

1、检查升降舞台散热片是否有灰尘、异物堵塞风道，压力的干燥压缩空气吹掉。
Check the landing stage heatsink for dust, duct blockage, dry compressed air to blow off stress.

2、检查升降舞台印刷电路板是否有油污、导体屑附着，铜箔是否有腐蚀现象，可用毛刷清洁板件表面异物。
Check the landing stage PCB whether there is oil, conductor crumbs attached, if there is corrosion of copper foil, brush can be used to clean the surface of the foreign body panels.

3、检查升降舞台冷却风扇运转是否正常，是否有异常声音、振动异常，累计运行时间达万小时以上，则需要更换冷却风扇。
Check the landing stage of the cooling fan is functioning properly, if there is abnormal sound, vibration, unusual, total running time of more than ten thousand hours, you need to replace the cooling fan.

4、检查升降舞台功率元件是否有灰尘、油污等异物附着，必须清洁处理异物。
Check that the landing stage power components dust, oil and other foreign objects attached, must be cleaned of foreign material.

5、检查升降舞台http://www.iyunsun.com/电解电容是否有漏液、鼓泡现象，防爆阀有无突起，需要进行更换电解电容。
Check the landing stage electrolytic capacitor leaks, bubbling phenomenon, explosion or without protruding valve needs to be replaced electrolytic capacitors.