I couldn't figure out how to set the 48v LVC on the controller included with my cheap ebike kit to 36v, so I decided to get a used Kelly KBS48101L-L Controller instead, which I snagged from an eBay listing: https://www.ebay.com/itm/183888487486
I successfully connected this Kelly controller to my PC to program it, but I'm having issues. When I turn the throttle, the motor turns forward, but it does it in an extremely jerky fashion (several loud clicks/clanks per second, almost as if it isn't reading motor hall sensor position correctly), and with almost no torque. If I lift the wheel off the ground while pressing the throttle it will loudly spin up to speed. If I leave it on the ground it has so little torque that I can hold it in place with my hands. I tried changing the "Hall Sensor Type" setting in the Kelly app from 120-degree to 60-degree but that made it even weaker so I changed it back.
1) Why does this Kelly controller have almost no torque and why does it make loud clanky sounds as it spins up? The previous controller works smoothly, it just has the wrong LVC so it cuts off off after 10 seconds.
2) The Kelly programming app gives me an option for both "3-wire pot" throttle and "Hall Effect Sensor". How can I confirm which one I have? Oddly enough, the throttle seems to behave the exact same for either setting.
Fany at Kelly Controllers was graciously helping me figure out the pinouts to this OEM version, but she (understandably) said she can't give further help since it's several years old and not being used in its original application.
I successfully connected this Kelly controller to my PC to program it, but I'm having issues. When I turn the throttle, the motor turns forward, but it does it in an extremely jerky fashion (several loud clicks/clanks per second, almost as if it isn't reading motor hall sensor position correctly), and with almost no torque. If I lift the wheel off the ground while pressing the throttle it will loudly spin up to speed. If I leave it on the ground it has so little torque that I can hold it in place with my hands. I tried changing the "Hall Sensor Type" setting in the Kelly app from 120-degree to 60-degree but that made it even weaker so I changed it back.
1) Why does this Kelly controller have almost no torque and why does it make loud clanky sounds as it spins up? The previous controller works smoothly, it just has the wrong LVC so it cuts off off after 10 seconds.
2) The Kelly programming app gives me an option for both "3-wire pot" throttle and "Hall Effect Sensor". How can I confirm which one I have? Oddly enough, the throttle seems to behave the exact same for either setting.
Fany at Kelly Controllers was graciously helping me figure out the pinouts to this OEM version, but she (understandably) said she can't give further help since it's several years old and not being used in its original application.