speedmd said:
Simple solution was to put a analog multi meter on the phase wires and slowly rotate the rotor to clearly identify the phase order. Worked perfect.
Halls order, in direction of rotation should be able to be done in somewhat similar fashion but easier due their on-off response. They will be A-B-C or C-B-A (1-2-3 or 3-2-1). Just marking - identifying the center leg on them would be a big help. Phase wires should clearly be induced with similar voltage spike as on the induction motor.
This is what the "ebike testers" do, using LEDs laid out in a circle or in a grid. Using one of those makes it fairly easy.
But without one, while it seems simple to do this sort of test, instructing people on how to use a multimeter (itself a significant task sometimes, as they often don't follow steps *exactly*...and that's assuming they're willing to go buy even the cheapest one cuz they dont' usually have one), then how to setup a power supply with pullup resistor on each hall signal (since you don't get a valid signal without one, as the typical motor hall is open-collector), then how to look for the very small voltage pulse you get out of each pass of a magnet on a phase coil at slow speeds like just rocking a motor back and forth to get a single pulse while keeping track of a specific hall responding to the magnet at the same time, etc. (assuming that's the method used to match hall to phase).
Alternately, using six resistors and six LEDs and a 9v battery to build a simple version of the phase/hall part of an ebike tester....
If can come up with a good detailed step by step instruction set that someone with zero experience at anything electrical can follow, I can copy it to the Technical Reference area, and we can at least try to get people to try it.
Simply identifying phase and hall order on controller? Physical layout possibly?
Not usually possible because the winding pattern is not necessarily related to where the phase wires are tied into the coils, or the order they are done so in, vs where the halls are located and the order they are in. Similarly, the motor controller hall wire order on the board may not be anything to do with the phase wire order (though at least the phase wire connections to the fets are obvious), and the order the pads are on the board may also not be the order they go into the MCU input pins (though they probably are), and the order the MCU firmware *reads* the pins cannot be known even though it is likely they are read in the same sequence they are physically laid out in, one can't know if they started at the "top" or "bottom" or "left" or "right" of the pin order. :/
When I have tried it that way, I never found any consistency between motors or controllers with different designs or even very similar ones. :/ (even the order the colors are soldered onto the phases or pcbs in either motor or controller aren't always the same even within the same brand and model motor or controller).
But if you can find a way to do this consistently between different setups, it'd be a great help to those willing to open up their stuff to find out the order rather than an electrical test, and it can be copied over to the Technical Reference area.