| 摘要 |
PURPOSE:To safely perform normal operation, coping with a plurality of commercial power source voltages by changing over and inputting the commercial power source, according to the voltage of the commercial power source. CONSTITUTION:When a power source switch 11 is made, the voltage of 200V is conducted to a voltage detection means 9. Hereupon, the voltage detection means 9 checks whether the conducted voltage is in the vicinity of 200V or not. As a result, in case that it is true, the voltage detection means generates an H level of digital signal and in case that it is false, it generates a low level of signal, and transmits the output to a power changeover means 10. Thereupon, the commercial power source 12 of AC 200V is connected to the 200V taps on the primary sides of the transformers of the motor power source 17 inside the voltage control means 7 and the control power source 18, and on the secondary sides prescribed voltages, that is, motor power source DC 80V and control power source DC 5V occur, and the robot can perform normal operation. |
