公开(公告)号：US20200050377A1

公开(公告)日：2020-02-13

申请号：US16485794

申请日：2018-01-30

申请人： OMRON Corporation

发明人： Kenji NAKAJIMA ,  Satoshi YAMAWAKI ,  Kentaro HIRAO

IPC分类号： G06F3/06 ,  G05B23/02

摘要： This control device is connected to a master device and controls a drive target on the basis of the content of communication with the master device, and includes a communication unit which periodically transmits to and receives from the master device first information, which is information relating to control of the drive target, and second information, which is information relating to safety; a first processing unit which controls the drive target by processing the first information; a second processing unit which, by processing the second information, performs processing to ensure safety of the drive target; and an abnormality determining unit which determines that an abnormality has occurred if both the first information and the second information have not been processed within a prescribed period.

公开(公告)号：US20170264233A1

公开(公告)日：2017-09-14

申请号：US15381113

申请日：2016-12-16

申请人： OMRON Corporation

发明人： Satoshi YAMAWAKI ,  Takao USHIYAMA ,  Kentaro HIRAO

IPC分类号： H02P29/68 ,  G01N25/72 ,  G01K17/00

CPC分类号： H02P29/68 ,  G01K17/00 ,  G01N25/72 ,  G05B19/18 ,  G05B2219/31455 ,  H02P29/60 ,  H02P29/666

摘要： A temperature monitoring device of the present invention includes: a current value acquisition portion (50) that acquires a current value supplied for the motor; a calorific value inference portion (20) that infers a calorific value through a first thermal model indicating a relationship between the current value and a calorific value of a servo driver (2); and an anomaly judgment portion (10) that compares the calorific value with a threshold, so as to judge whether there is heating anomaly.