Triac Motor Issues
Posted: Thu 18 Jul , 2013 18:29 pm
ive had nothing but issues with the motor since I got the machine.
machine is running -
mach3 and smooth stepper
ive installed spindle feedback (rpm sensor)
if I do s3200 sometimes it run 3300 other times it can be as high as 3500, it never used to do this, the speed has been going up over time. when I first got the machine if I did 3200 it would always run at 3150 etc...
when I run the spindle slow, so say I do s1000 then the machine flickers around going from 1000 to 1300 constantly, so my surface finish isn't great. when I put the motor under load it seems to smooth out, but take the load away and speed goes up and down and you can clearly hear it doing so.
checked the main brushes on the sem motor and they are fine and ive checked the brushes at the top of the motor and they are fine.
all thoughts welcome
machine is running -
mach3 and smooth stepper
ive installed spindle feedback (rpm sensor)
if I do s3200 sometimes it run 3300 other times it can be as high as 3500, it never used to do this, the speed has been going up over time. when I first got the machine if I did 3200 it would always run at 3150 etc...
when I run the spindle slow, so say I do s1000 then the machine flickers around going from 1000 to 1300 constantly, so my surface finish isn't great. when I put the motor under load it seems to smooth out, but take the load away and speed goes up and down and you can clearly hear it doing so.
checked the main brushes on the sem motor and they are fine and ive checked the brushes at the top of the motor and they are fine.
all thoughts welcome