> I have a PMDC motor I’ve scavenged along with the MC-2100 motor control > from a treadmill rated for 1.5 hp @ 90 volts. I’ve been testing it with > LinuxCNC v2.7.15 in a mock-up environment I built for testing. I’m able to > control the spindle speed via PWM pulses to the controller (HD2 pin 4). M3 > S500 will get me somewhere between 520 and 580 rpm. You can hear the motor > whine fluctuating with the RPM. I’ve also installed a CUI ATM 10 encoder on > the back and seem to have it working with both an index and phase A signal. > I have the jumpers on it set to 200 PPR but it can go all the way to 2048. > I’m using a cheap china 5 axis BOB connected via parallel cable. > > Does anybody have any idea why I’m get so much flux on the rpm? Surely this > isn’t normal? I know enough about the HAL to be dangerous. Is there some > things I can check to smooth this out? Thanks.
You are sure drive pwm signal outputs are constant duty cycle? _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
