Re: rough motor

Hi all,

FUNNY?

After confirming that the the logic side is OK by confirming the
current limiting reference voltage is changing correctly, started
measuring Phase A-a and Phase B-b voltage.

Funny, when I first started measuring minus the motor while jogging
step-by-step, found the voltage to go:

X-axis

A-a 0, 0.19, 0.19, 0.19, 0,-0.19, -0.19 ....
B-b 0, 35, 35, 35, 0, -35, -35.....

Y-axis and z-axis

A-a 0, 35, 35, 35, 0, -35, -35.....
B-b 0, 35, 35, 35, 0, -35, -35.....

Connected motor to Y-axis, vibration again noticed, and this time
voltage goes:

A-a 0, 35, 35, 35, 0, -35, -35.....
B-b 0, 0.19, 0.19, 0.19, 0,-0.19, -0.19 ....

But x-axis minus the motor was OK

Connect motor to x-axis and problem starts over again.

Is this the Troll's work?

keongsan