In this case I did blindly control the weld current via the PWM output. The TIG machine is a current regulating controller, it keeps the current to what is commanded. The unit I controlled was an Kemppi Mastertig 1500
I did initially measure the current with a clamp on toroidal DC probe on the return lead. You might think that the arc-start spark voltage is a problem, but it worked quite well for me. > Hi > Lars > ---I am doing something similar with a TIG welder where 0 - 5V corresponds > ---to 0 - 160A welding current. > > > what kind sensor-device do you use to read 160A current ? > > thanks > aram > > ------------------------------------------------------------------------------ Infragistics Professional Build stunning WinForms apps today! Reboot your WinForms applications with our WinForms controls. Build a bridge from your legacy apps to the future. http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
