I have spent a while tuning my servo loops today. One important thing to know is that my AMC 30A8 servo amplifiers have their own velocity loop based on tachometer feedback.
I have had a few successes today: 1) Unset a DIP switch that limited maximum torque on the amplifiers, and increased accelerations on all axes. This will especially help with small work, like engraving, and generally complex contours. 2) Upped the maximum speeds somewhat to get 90 IPM on all axes. I may limit the speed back, just to be a little safer. I do not gain much from top speed. However, being able to accelerate quickly would be helpful. 3) Put the PC inside the control cabinet enclosure. So everything, right now, is on the pendant or in the enclosure. No more mess of PC and wires strewn all over the place. All communications between pendant and control cabinet take place through the pendant arm. But I have a problem that I just could not solve: after a movement, the Y axis cannot calm down, the Y axis servo just keeps buzzing and vibrating somewhat. Y axis is the heaviest axis on this knee mill. If I turn down P or I I start getting following errors when homing. I am not sure just what can I do. Again, the servo drives are in velocity modes and they have their own loop to control velocity of servos, based on tachometer input. Maybe I set acceleration too high? Should I perhaps take acceleration down a notch an reduce P? or I? - Igor ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
