Microprocessor-controlled controller for resistance welding...

Details Microprocessor-controlled controller for resistance welding... Microprocessor-controlled controller for resistance welding...

G - Physics

05

B

327/105, 354/230

G05B 19/18 (2006.01) B23K 11/25 (2006.01) G05B 19/042 (2006.01) G05B 19/10 (2006.01)

Patent

CA 1186413

MICROPROCESSOR-CONTROLLED CONTROLLER FOR RESISTANCE WELDING MACHINES ABSTRACT OF THE DISCLOSURE A precision key pad con-trolled controller for a resistance welding machine which may be set to deliver welding power to each of a multiplicity of welding operations on a precisely controlled repeatable basis. The controller incorporates circuitry for assuring that an accurately controlled amount of power is delivered for each welding operation by providing precise phase angle control despite variations in line voltage and line disturbances. The controller is constructed to incorporate selected numbers of steps to be performed automatically in sequence by the controlled welding machine in carrying out a particular welding operation. The duration of each step of the welding machine, the amount of welding power to be delivered, and other parameters are set for each particular welding operation by the key pad, and displayed on an associated alphanumeric display.

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