I am working on a mill with a Pico Systems setup and am having troubles with the tuning.
Wells-Index 3 axis mill, similar to a Bridgeport, formerly using Gecko 320's Pico Systems UPC PWM controller 3 Ea. PWM DC servo amps set at 10 Amps Original nominal 90 Volt supply With the P set to 100 I set to 0 and D set to 0 the axis will hold against turning the screw in one direction very well but the other direction faults out very easily. Changing the current limit resistors did not make an appreciable difference. Setting P to a higher value does help some but using any D sets it into oscillation. Many other settings have been tried but it has been mostly a blind change and try thing. It will jog at about 10 IPM then faults when stopping. The difference in torque in the different directions is what has me baffled. TIA Ed. ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
