| 摘要 |
PROBLEM TO BE SOLVED: To drive and control a plurality of motors by one driving controller. SOLUTION: A power line switching device 3 selects one power line among the power lines LP1-LPn of motors 11-1n and connects the selected power line to the power line LP0 of a driving controller 5 electrically. Detectors 21-2n output detection signals S1-Sn indicating the speeds or positions of the motors 11-1n through signal lines LS1-LSn. An encoder signal switching device 4 selects one signal line among the signal lines LS1-LSn and, even when the signal line is selected, the connection of the selected signal line and the connection of the signal line LS0 of the driving controller 5 is switched without causing a short break. Therefore, even if a driven motor is switched, the detection signals are inputted to the driving controller 5 continuously, so that the driving controller 5 can drive and control a plurality of motors 11-1n without the erroneous detection that a failure is a serious failure. |
