I guess I don't understand how a chopper can use that little current to push the motors so fast....
Using TurboCnc on a 133mhz PC, and a simple phase driver, my motors skipped steps when I pushed them past 300 (not clear if it is Hz or Mhz or Khz) but that is the number I remember from the "configure axis screen"
I decided to use 11 volts for these motors to keep them below the 5amp limit of my TIP120's even thought they are rated for 4.5 volts
I only had problems when I tried to increase the rapids IPM. The motors have no problem with the actual working feedrates that I would expect to use.
I know I need better drivers, but I would also like to know if there is something wrong with what I've done so far.
Is the PC too slow ? Am I hurting these motors ?
(2x) Motor = NEMA34 rated @ 4.5Volt 1.4Amp / phase
(1x) Motor = NEMA34 rated @ 7.4Volt 1.3Amp / phase
Thanks in advance ! |