公开(公告)号：EP3930183A1

公开(公告)日：2021-12-29

申请号：EP19916289.2

申请日：2019-07-11

申请人： LS Electric Co., Ltd.

发明人： RYU, Hyun Gyu ,  YANG, Chun Suk ,  JEON, Jong Wook ,  CHI, Min Hun

IPC分类号： H02P31/00 ,  H02P29/60 ,  H05K7/20

摘要： The present invention relates to an interface circuit of a motor driving apparatus, the interface circuit comprising a power circuit unit for controlling driving of a motor, and a control panel unit which controls the power circuit unit and provides a user interface, wherein the power circuit unit further comprises a second MCU which controls a relay and an additional device unit and detects an operation state of the additional device unit, and the second MCU can communicate with a first MCU of the control panel unit via a communication line.