| 摘要 |
PROBLEM TO BE SOLVED: To reliably prevent interference of a feeder with a press by a very simple configuration when an abnormality occurs in a servo control system to control linear motors. SOLUTION: A feeder is evacuated from an interference range to a non-interference range by blocking the transmission of driving forces from each drive system to linear motors 24A and 24B to set the linear motors to be in a free state if the feeder is in the interference range of a press with the feeder when an abnormality occurs in a servo control system to control the linear motors 24A and 24B, and invalidating the operation of brakes of the linear motors 24A and 24B. COPYRIGHT: (C)2004,JPO&NCIPI
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