Hi, new here,
I just got some generic Chinese bike brushless systems. They all seem dead. The controllers are not putting out any voltage to any circuits. I have sketchy info for the brake, reverse, pot, key and speed sensor switches. The sample that was sent did not require hooking up any of these but I did try connecting them. Has anyone seen a controller that requires a combination of key and brake power connections or something to power up? Or should I assume there are defective?
Thanks
copperhead
brushless controller wiring
Tue, 12/02/2008 - 23:57
#1
brushless controller wiring
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I do know the key must be in the on position or the controller will remain disabled.
Grandpa Chas S.
given that there is a single key wire and there is no voltage on it I'm assuming it wants full positive battery voltage connection? and that didn't work. so just dead?
Thanks much
copperhead
Very often these controllers use ground to activate something. Try connecting the key wire to ground.
Grandpa Chas S.
I did try it both ways, do you think connecting the key the wrong way could blow it up? it's a 24 volt system.
thanks again
copperhead
OK, turned out to be a combination of a bad throttle (which had tested good (and I then probably blew up) and the right key voltage(full battery positive)
thanks for your encouragement
copperhead