BBS02 Pedalling Backwards

[robwalley]

Just changed over from Rohloff gears to SRAM DD3 gears, absolutely no changes to motor, battery or controller settings.

All great, but pedalling backward at certain cadences kicks the motor forward when passing the sensor points, not serious, only noticeable at lights and junctions and on the stand, but annoying.

Any ideas?

 

[robwalley]

Found this on an obscure forum.

“Startup Dgree(Signal No.): 4\4\4\4\2”
Karl, have you tried what happens when you pedal backwards? In my motors, setting this value to 2 will make PAS activate when pedalling backwards. That’s why I also keep it at 4 (or maybe 3).

I think I set this to 2 last time I tweeked the controller settings a month ago and I just haven't noticed using the bicycle until now. I'll check tomorrow and end the thread if all well.

 

[robwalley]

Confirmation and Fixed. Do not set “Startup Dgree(Signal No.)” to "2" on BBS02 and possibly other controllers. Pedalling backwards will trigger forward motion on the motor.