MP Reverse

[dirk pitt]

@monkeymagic,

your are still confusing us (me at least)
on your picture, I guess the red circles indicate the connected wires??
if yes, this is strange cause one is missing and one is not supposed to be connected (see my mod of your picture)

[MonkeyMagic]

nope the picture was one I had showing yellow wire connected to controller.

cheers

[Gapy]

Hey!

Has anyone tried to swap the phase wires? Wich one do I need to swap? I really do not want to burn something!

Gapy

[Gapy]

So I tried to swap the wires, but non of the configs work!? Do I need to swap the hall sensors too?


Gapy

[Bikemad]

Have you tried connecting the Reverse connection to ground (0V) on the controller? This may select reverse if it's still enabled on the Pie's controller.
 
If you're going to swap phase wires instead, I would start by swapping the green and yellow phase wires first, but you will also need to swap the green and yellow hall sensor wires as well!

Don't forget to let us know if these are the right wires.



Alan
 

[Gapy]

I tried to swap the phase wires and sensors, but no luck! When I swaped

1.green and yellow - motor spins in same direction, but much louder
2. blue and yellow - same as 1.
3. blue and green - does not spin at all!!

So swaping the phase wires does not work!!

And then I thhink of much easier solution-swap the motor covers!
All I need is to have the disc brakes on the other side!

Anybody see the problems that could have accured???


Gapy

[e-lmer]

Wait a minute, when you reverse one pair of the three
leads on the external controller you don't have to mess
with the hall sensors, they just get it.  The wheel
runs backwards.

You should be able to do that with the MP too, you must
not be changing the leads you think you are.

[Gapy]

Well I tried to swap just the phase wires, but then the motor does not spin at all! The hall sensors definetly has to do something with the direction of the motor, that is why there are three of them-(you need three to determine the direction of rotation)!

So the easier way is to swap the covers and then there is no need to swap any wires!!?


Gapy

[Leslie]

Very complicated subject isnt it..
Im going around in circles trying to figure a way to explain it to make sense.

Hall sensors are placed in order of blue yellow green.  Theoretically Green is placed at 0 degrees Yellow is placed 120 deg after it and Blue 240deg after blue.

The phase wires are placed in order too, the way they are next to each other in forward  GYB>>>> or reversed <<<BYG  So forward must have yellow next after blue and backward must have yellow next after green.  

The phase order and direction forward is GYB>>>>
The hall sensors are in line                    GYB>>>>


The phase in reversed order is now and direction is <<BYG
Maybe reverse the order of B and G hall sensors.   <<BYG


Its topographic to how the halls are positioned in the stator to the corresponding phase order.  Yellow can stay constant as it is signified by being placed in the centre of Blue and Green similarly as Green will be centre of Yellow and green next in reversed direction.  And Blue will be centre of yellow and green in forward.

At no stage should you see.  YBG or BGY in reverse

And at no stage should you see GBY YGB in forward

The three phase and hall colours do run in a defined order divided by the two possible directions the wheel could possibly rotate..

Bikemad already posted the answer.

I havent tested this but I am with BM on this.

Swap the hall wires too.  I think!

Edit:

Ahhh and all old GM controller thus far have on the "PCB"  Y G B but the motors are B G Y  Now for the controllers to work with all GM motors it must be the same as my HBS.  BYG

So ignore what order they are on the PCB.  The color matters and where they sit in order in the motor.


Edited.

I had reverse and forward the wrong way to my GM HBS36.

[Leslie]

All GM examples Ive seen on the net the yellow phase wire is always in the centre of line both on the hall sensors and the phase wires.

Green pulls in one direction and Blue the other direction so yellow is the follower to either direction.

So My suggestion is to change blue and green on the phase and on the halls and leave yellow connected to yellow.

[Bikemad]

All GM examples I've seen on the net the yellow phase wire is always in the centre of line both on the hall sensors and the phase wires.

Green pulls in one direction and Blue the other direction so yellow is the follower to either direction.

So My suggestion is to change blue and green on the phase and on the halls and leave yellow connected to yellow.

The question related to the Magic Pie, and mine is wired like this:


If you click the image to enlarge it, the colours of the hall sensor wires are more obvious.
(I did have to highlight the yellow one because it was a bit camera shy)

This is why I originally suggested swapping the Green and Yellow leads:

Have you tried connecting the Reverse connection to ground (0V) on the controller? This may select reverse if it's still enabled on the Pie's controller.
 
If you're going to swap phase wires instead, I would start by swapping the green and yellow phase wires first, but you will also need to swap the green and yellow hall sensor wires as well!

I gave the same advice a couple of months ago, following an email asking how to reverse the rotation on one of the Magic Pie's fitted to this hybrid car project:

We went for swaPping the winding and hall sensor wires. It worked. Our problem has been solved. Thanks for your help.

So I therefore assumed my suggestion to transpose the Green and Yellow leads was correct.

Alan
 

[Gapy]

I have really tried to swap phases and hall sensors in all possible ways, but nothing worked for me! Here is a pic of my pie's controller for you to see and advise me where to connect(turn on) the reverse function if it even exist on my controller!

[Bikemad]

Gapy,

Looking at your photo, the yellow wire appears to be connected to the reverse connection on your controller, so you should be able to select reverse by connecting the thin yellow lead to ground (any one of the thin black leads) where the wires exit the main wiring harness.

Alan
 

[Gapy]

Tried that-no luck!

Mybe my pie is cursed

The yellow wire is solderd at "d"...

[Bikemad]

I think the "d" must stand for direction, but I don't know for sure, but the Pie with reverse appears to have the yellow lead connected to the "d" terminal just like yours has.

See this earlier post

I presume your motor still runs OK in the usual direction, just not in the right direction for you.

Alan