Patent ID: 11892815
Assignee: FANUC CORPORATION
Field: Control (Instruments)
Classification: CPC G  B  F | IPC B  F  G

Claim 0:
1. A diagnostic apparatus that diagnoses a degree of wear of a belt that is provided in an industrial machine and transmits power, comprising: a control unit configured to control a diagnostic operation for driving the belt;
wherein the diagnostic operation comprises: (i) issuing a command causing the belt to be driven at a plurality of position of the belt or under or a plurality of conditions and (ii) issuing a command causing one or more sensors to acquire detection value data under the plurality of conditions;
a first tension calculation unit configured to perform, based on data obtained from the diagnostic operation, a calculation to estimate a first belt tension value that is a tension value of the belt when the belt is not worn; a second tension calculation unit configured to calculate a second belt tension value in a case where a tension reduction factor of the belt and a wear factor of the belt are included; and a third tension calculation unit configured to calculate the degree of wear of the belt based on the first belt tension value and the second belt tension value;
wherein the third tension calculation unit calculates the degree of wear in accordance with iterations of the diagnostic operation.