Motor direction vs other problem

[m_cremers]

Hi all.
Ive been trying to get my blft210 centre motor to spin.
It definately sounds like its spinning on the inside, but the spider has never once moved.

Ive been trying phase/hal wire combinations for hours now with an adapter cable I made.
Its making all sorts of different noises with various combos. But never does it move the spider.
Ive attached the scheme I used for testing.

First I just figured it spins the wrong way, but none of the wire combinations have actually made it visibly move.

The problem is that this bike does not have throttle. So I can only test ot with the walk assist function but im not sure how that relates to torque sensing or how that would engage the clutch.

I'll attach a photo of my testing setup in the hope that helps.

The bike has not been used that much, but Ive assumed the clutch would still be fine but cant be sure of that of course.

Any suggestions?

 

[Chalo]

When you turn the spider by hand, does it turn freely in one direction but with resistance in the other? If it doesn't backdrive the motor in one direction, then there's a problem with the one way clutch.

If it does have differential resistance depending on direction, or if you can hear the motor when you turn one way but not the other, then the customary way to reverse a BLDC motor is to swap any two phase wires and then shuffle the Hall sensor wires until it runs correctly.

 

[amberwolf]

First, what Chalo said, above.



Next, verify that:
--the hall power and ground are wired correctly and that the voltage the halls are powered with is correct (normally between 4.3v and 5v)
and
--the voltage on all the controller-side hall signal wires without being connected to the motor is 5v (the motor side signals are not valid until connected to the controller; thats the next test step)
and
--the voltage on all the hall signal wires when connected to the motor all switch between around 0-1v and 4.5-5v as you turn the motor output backwards***

***backwards to force the clutch to engage from outside and force the motor to turn



Next, since you never resolved the issues left open in this thread (that ended without a conclusion or a fix)

Troubleshooting G1 center drive

Hi all, I'm new here and have spent the last weeks digging through this forum in search for an answer for my particular problem. Im not sure, but this might be a total noob question with am obvious answer. So here's the thing. I have an Ortler EC700 eBike which has a motor that I can find...

endless-sphere.com

the system probably still doesn't work correctly, and may not do what is being commanded.

 

[m_cremers]

Hi @Chalo thanks for replying!
I've just checked and I can indeed turn the spider freely in one direction and with some effort in the other as it gives resistance that way.

So then we're back to testing the wiring.

@amberwolf
In reference to the hall power and ground. i've left those wires intact in my adapter cable, however I just read in a different thread that I might not be able to rely on the colours as the pinout in the julet plug might differ between controler, adapter cable and motor. So I'll measure those first. Then Ill do the hall wires.

I was thinking of just writing out al 27 phase/hall combinations and just doing all of those next, but wanted to post it here first in case there is something else im missing.