View Full Version : Can a wrong abc connection kill a esc
OneKiwi
01-07-2013, 11:38 AM
As in title its a speed passion Reventon pro
Can it kill the esc if the motor wires are connected wrong?
cutting42
01-07-2013, 12:26 PM
I am fairly certain this will not kill the ESC as on an unsensored ESC you switch around leads to change motor direction. The motor might run badly or not at all but the ESC should be fine. You might kill it if you short the motor leads together though.
I am fairly certain...
The motor might run badly or not...
You might kill it...
So basically you have no idea...
(neither do I)
K-Brewer
01-07-2013, 01:14 PM
As in title its a speed passion Reventon pro
Can it kill the esc if the motor wires are connected wrong?
i have done this before on a SP GT 2.0 an it wouldnt run, swapped them over an all worked fine but sometimes thats not the case an can damage the esc, depends if your lucky all not
cutting42
01-07-2013, 01:44 PM
So basically you have no idea...
(neither do I)
:thumbsup:
Actually I do have a fairly good idea as I am a (former) electronics engineer. The output of the ESC is a synchronous AC waveform and switching over 3 phases to produce a moving magnetic field. The phase switching is defined by the position of the motor (sensored) or estimated from back emf from the motor coils (sensorless). Mixing the pulses up (connecting the leads incorrectly) will just send confusing signals to the motor and it will stutter or reverse. However the logic circuits driving the outputs are usually designed to compensate for this and can self correct and also will not allow a short across phases to occur.
My caution was driven by the fact that each system can be different and I don't know all the variations.
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