I have two controllers that power the hub motor with the learning wires connected, but not when disconnected.

[djwikkid]

I am working on a 48v brushless controller. The motor works when the learning wires are connected, but when they disconnect I have voltage in the throttle and full battery power tested at the connection. This has happened with two similar but different controllers. The current one doesnt have the display connector, but it does have a single green wire labeled instrumentation (any info on this wire?) I tried throttles new and ones I know have worked. I have the main red and smaller lock red connected together and still nothing. There is a connector with a small extended hook that has black and red and when hot gets full battery voltage on the red line. At my wits end and looking for some help today. Please advise or ask any question you need to to fully understand my issue.

Dan

 

[fechter]

Most controllers will inhibit output if any of several faults are detected.
Disconnect the brake switch wires (if you have them). This is one possibility.
Other fault conditions would be battery voltage too high or too low, throttle signal out of range, motor hall sensor fault, "lock" enabled on the controller, and probably some more.

Motor hall sensors can be tested with a voltmeter by measuring each hall signal wire vs. battery neg. while powered on and turning the motor by hand. Each hall should toggle between near zero and near 5v as the motor turns.

With the learning wire connected, does it run OK? Maybe they are supposed to stay connected? Most controllers you would disconnect them normally.

 

[docw009]

You are powering off the controller with the learning wires disconnected? Next time you power it up, it should know how to sync the motor phases. If you power down with the two learning wires connected, it might forget what it learned.

 

[MxusMick]

The Learning wires are to stay unplugged, when your wheel spins backwards with learning wire, it will throttle forward once unplugged. Loose wires can cause controller to forget the " configuration" like mentioned above.

 

[Chalo]

The Learning wires are to stay unplugged, when your wheel spins backwards with learning wire, it will throttle forward once unplugged.

That's not my experience so far. When it does the things you want with the leaning wire, you unplug it and then it does the same thing when you throttle.

 

[MxusMick]

I am a self taught newbie, but today changing a flat on one of my DIY bikes I disconnected controller wires to tidy things, upon reassembly the wheel stuttered with throttle, I propped rear wheel and connected white "learning" wire and it lurches in reverse cranks and all, I was able to disconnect the battery before the learning wire cuz it was running away, the motor ran forward after I unplugged the wire and replugged the battery.....so it may have swapped?