| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technology for unitarily managing various types of servo motors for industrial machinery such as a robot using a servo motor as a driving source. <P>SOLUTION: A failure diagnosis device 50 is provided with a data conversion part 65, a decision part 66, a fluctuation width management value memory 67 and a warning part 68. The fluctuation width management value memory 67 stores a fluctuation width management value for a second servo motor 22, a fluctuation width management value for a third servo motor 25 and a fluctuation width management value for a servo motor 39 for rocking. The fluctuation width management value is compared with torque information(the mean value of the maximum fluctuation width in a fixed period) so that failure diagnosis can be performed. Thus, it is possible to simplify management by unitary management, and to require only one set of failure diagnosis system thereby reducing the footprint thereof. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
