My 2019 Radcity controller started causing bad motor vibrations. I was 10 miles from home and had just ridden a normal ride on sidewalks and roads on a cool day in PAS 2 or 3 about 4 weeks ago. I have a motor extension cable cut open so signals can be checked. I just run it in Walk mode for now. This first image is the waveform on the yellow phase drive wire. As it turned out, that waveform is coming out of the motor because the yellow wire is completely broken somewhere in the controller cable pigtail. The 2nd image waveform with the positive “square” wave is the normal signal for all three phases in Walk mode. It is a sine wave controller. There is a small amplitude sine wave at the bottom of that image. I’ll post some higher speed waveforms when I get the throttle.
Controller problem
- Thread starter BKing
- Start date
Similar threads
