| 摘要 |
PROBLEM TO BE SOLVED: To provide an industrial machinery capable of detecting abnormality of a drive section without a need of trial operation and comparison operation for each sampling.SOLUTION: An industrial machinery repeatedly executes a series of operation. The industrial machinery comprises: a drive object executing a certain step of the series of operation; a drive section activating the drive object; a transfer mechanism transferring operation of the drive section to the drive object; and an operation section comparing a current integrated value obtained by integrating torque or a supply current of the drive section in a step of a certain series of operation with a past integrated value obtained by integrating torque or a supply current of the drive section in a step of a series of operation precedent thereto and determining whether or not a transmission mechanism is abnormal. The operation section may determine the transmission mechanism to be abnormal when a difference between the current integrated value and the past integrated value exceeds a predetermined value.SELECTED DRAWING: Figure 4 |
