I recently installed an ACS806 brushless drive along with a BLM57130 leadshine motor. The motor is a 130W motor with a 4000ppr encoder.
The controller is a step and direction type, with the encoder feedback passed back through to linuxcnc via a mesa 5i25 and a 7i86s.. So I'm using the drive to run the PID loop but having linuxcnc watch my f-error. I've replaced a 500oz/in stepper motor with it on a medium sized cnc wood shaping router. I have tuned it up and it seems to be tuned well, and has a low following error (< 0.01mm) at about 400mm/min and below. The problem is that it seems to rapidly increase from there. 0.1mm around 3000mm/min and 1.5mm at around 12000mm/min. Does anyone have experience with these drives? I've tried to utilize feed forward but it doesn't seem to make a difference. Being that this is my first servo drive, what would be a typical f-error for various types of machinery? Say for instance what would the following error be on a 1000in/min high dollar cnc vmc. What do people with home shop mills see? Thanks, Curtis ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
