... speed controller,inverter,variable frequency drive,Energy saver,ac motor control system,ac frequency drive,vfd,vsd,frequency converter. ... ), 180% rated current for 10 s (VC)22) Multi-functional Quick/Jog key: Access common used parameter quickly23) Ambient temperature ... ) 30 kinds of protection function26) User can plug in option card to achieve specialized inverter for different application27) ...