noob needs some controller help

[ghostship]

I have an old Hilltopper 24v 250w kit with a tiny battery that I wanted to upgrade to 36v. They (Hilltopper) sell a kit to do this for $400, which I think is excessive so I tried to do this on my own. The hub is a Bafang sensorless unit with an IP65 style plug on it (I guess Hilltopper specified). I got a 36v battery and a KT controller kit consisting of a KT36/48ZWSRD-ff01 17A controller, 900S led, thumb throttle and pas sensor. I plugged in the throttle, pas and led and ran jumpers to the motor from the phase wires. The hall plug on controller is left unplugged as I have no halls. LEd powers on and shows full battery. I've swapped around all the phase wires thru 6 combinations and the hub won't move. According to the info I could find the ZWSRD controller should be able to operate sensorless.

Any input or direction here would be greatly appreciated!

 

[Larry_says]

Wow. Nobody has responded to your post? Strange. I'm a noob too so I'm not of much help, but maybe try posting again and word it differently to lure in a response. Kind of like fishing. Lol good luck

 

[Slaphappygamer]

The diy maintenance area would be better suited for this topic. Maybe a mod can move it? You’ll get more responses.

How have you tried to engage the motor? Throttle or pas? Holding down will induce the walk feature. Have you tried all 3 methods?

 

[harryS]

I'm not aware of any KT controllers that are dual sensored/sensorless. As far as I know, they come without the hall connectors, are square wave, and they tell you in the listing it's sensorless.

But what do I know. If you got one that is dual mode for both types of motors, I believe that the later KT displays have in addition to the P and C parameters, an L3 parameter that forces which mode to use.