| 摘要 |
PROBLEM TO BE SOLVED: To suppress reduction in work efficiency of a production system accompanying emergency stop of a servo motor.SOLUTION: A servo motor controller 1 includes: servo motor control circuits 13, 23 which control inverse converters 121 to 126, 221 to 228 so as to supply AC to servo motors when being receiving a safety signal and control the inverse converters 121 to 126, 221 to 228 so as not to supply AC to the servo motors when being receiving no safety signal; and a servo motor monitoring circuit 40 which stops a servo motor by stopping transmitting a safety signal to a servo motor control circuit when having determined the stop of the servo motor, and intercepts DC supply to the inverse converters by using a power supply interception circuit 30 and stops the servo motor by stopping transmitting the safety signal to the servo motor control circuit when it is determined that at least one of the power supply interception circuit 30, the safety signal, and the servo motor control circuits 13, 23. |
