how to test my motor?

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Last seen: 16 years 6 months ago
Joined: Wednesday, July 18, 2007 - 05:12
Points: 15
how to test my motor?

i have a pedelec and have problems with it. now the motor is not functionning. of course there may be many reasons. but now i would like to test the motor directly, without controller and throttle and sensor to initiate it. how can i do this?
my idea: take my battery (36V = 3x 12V led battery) and apply the voltage to the motor and see if it works.
but: how to apply the tension? i see from motor to controller 3+5= 8 cables: 3 thick and 5 thin cables. should i apply the 36 V to 2 of the 3 thick cables ? which ones ? WHY ARE THEY 3 CABLES? I HAVE SOME MEMORIES ABOUT MOTORS WITH 3 "WIRES"(?) OR "PHASES"(=?) OR THING LIKE THAT) OR SHOULD I APPLY 12 V ALONE FIRST?
and why are they 5 thin cables? i can imagine:
1-temperature sensor?
2.ampere sensor?
3.speed sensor? (dont think so by such a cheap pedelec) i think speed is approximately given by the sensor who starts the pedelec? (even if it depend on the gear(?) (i have only 3)
thank you for any input

andrew's picture
Last seen: 14 years 4 months ago
Joined: Tuesday, November 28, 2006 - 17:21
Points: 1361
Re: how to test my motor?

Can you give more detail about what you are riding? Manufacturer site & specs would really help.

If it is a brushless motor, you can't run it without a controller. The 5 wires are probably to position sensors which tell the controller when to switch.

Can you give more detail as to how it failed initially?

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