[Need help] Fardriver 96240 issue with current control

kathode

100 µW
Joined
Nov 30, 2019
Messages
9
Hi i'm gonna try my best at writing english, please don't mind some grammatical errors....
Anyway, i get my hand on two fardrivers 96240 supplied by QS.
But one isn't working at all.
I'm using it 24s (96V) lipo with a mxus 3k turbo.
On the auto learning phase, when touching the throttle, one working just fine while the other one start to spin the motor then immediately stops and display "phase current overflow" on the app.
QS quickly let me down on this.

So i started dissasambling them.
Nothing burned they looks 100% similar
IMG_20220209_225220.jpg

IMG_20220209_223813.jpg


I not good at all at electronics but i noticed the chunk of ferrite who's supposed to "catch" current flowing trough the phase by induction and mesuring it with a hall sensor positioned in the upper slot.

I desoldered the hall sensor (the same one on the two slots AND the two units)
IMG_20220209_224932.jpg

(cL612 or c1612 ?) Maybe there are faulty but i don't find any replacment parts with this :(

I'm very curious to read what you guys think about my problem and wich direction i'm supposed to take on this repair.
I really hop we can fix it, thank you for your time :)
 
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