| 摘要 |
PURPOSE:To provide a titled arc welding machine which displays a set value in a remote place with an arc welding machine which adjusts current to a set value by a variable resistor and an output current control circuit by displacing the slider of the variable resistor by a motor which is run forward and backward by a remote command for regulation. CONSTITUTION:A motor 8 of a current setting part 5 is moved by the operation of switches 12, 13 of a means 11 for commanding remotely regulation to move a slider 6a of a variable resistor 6, by which a set voltage value VS is fed to an error amplifier 2 of an output current control circuit 4. The current from an input 1a is fed via an output control part 1 to an output 1b. The output Vi detected by an output current detecting part 3 and is compared with the set value VS in the amplifier 2 and an error (e) is corrected by a control means such as a thyristor or the like in the part 1. The value VS is displayed and checked by an indicating meter 10 in a remote command place. The set value of the arc welding machine is remotely checked by the above-mentioned method. |
