| 摘要 |
PURPOSE:To enable constitution of a control switching circuit using a ready- made circuit by connecting output of the first control gain amplifier to input of a servo amplifier through a resistance and connecting output of the second gain amplifier to input of the servo amplifier through a changeover switch. CONSTITUTION:The first and the second control gain amplifiers 1A, 1B feedback circuits 3, 4, deviation detectors 5, 6 are provided separately for a servo amplifier 2. A resistance 9 is connected in series between the output of amplifier 1A and the amplifier 2. A lead wire 10 is led out from the amplifier 2 side terminal of the resistance 9. A switch 11 for control switching is connected between output terminal of the amplifier 1B and lead wire 10, and is so consitituted as to turn on and off by switching command. When the switch 11 is off, output voltage V1 of the amplifier 1A becomes equal to input voltage V0 of the amplifier 2, and when the switch 11 is on, output voltage V2 of the amplifier 1B becomes equal to V0. |
