SYSTEM AND METHOD OF COMMUNICATING IN A WELDING SYSTEM OVER WELDING POWER CABLES

摘要

Systems and methods of the present invention are directed to welding systems having a welding power supply and wire feeder, where the power supply and wire feeder communicate over the welding power cables. In exemplary embodiments, the wire feeder communicates with the power supply over the welding cables using current draw pulses which are generated and recognized by the power supply. Similarly, the power supply generates voltage pulses which are transmitted over the welding power cables and recognized by the wire feeder.

主权项

1. A welding system, comprising:
a welding power source comprising a controller having a first receiver, first transmitter and a current sense circuit; a wire feeder comprising a communication circuit having a second receiver, second transmitter and a voltage sense circuit; and at least one welding power cable coupled to each of said welding power source and said wire feeder which carries a welding power from said welding power source to said wire feeder during a welding operation; wherein said wire feeder communicates with said welding power source over said at least one welding power cable by generating a current draw signal which is detected by said current sense circuit in said welding power source; and wherein said current draw signal comprises a plurality of current draw pulses generated by said wire feeder.