Problem with ECityPower/BMSBattery 12 FET controller

[fitek]

Hi folks, I've been using the 12 FET BMSBattery controller (the one w/out cruise control) for a while. However, I swapped it out of the bike it was on to test a motor, and now I can't get anything out of it. There's the normal "pop" when I attach the andersens. I get 5V on the hall power line. I pulled off the cover, and there is a red LED which turns on for a moment every couple of seconds. I am not sure what this means.

I tried connecting the brown wires together, and then the white and purple... and both at the same time. Nothing. I tried sensored mode and sensorless... nothing.

I found the following PDF which has some of the connectors described in English: http://www.bmsbattery.com/pdf/KU62-6Mosfets.pdf
Also, this one: http://www.bmsbattery.com/pdf/912Mosfets.pdf

However I did not find any manual and I'm not sure how to continue troubleshooting.

Attached are some photos of the controller.

 

[jondoh]

It's a bit of a long shot, but I've been finding more problems with throttles than with controllers. With your controller powered up, if you unplug and then plug in the throttle connection, if there's a problem with the throttle, this might get your wheel spinning (though you won't have speed control).

If the problem is with your controller, the only way to know for sure is to try another controller. Lyen is your guy-- especially if you live in the SF Bay Area.

 

[fitek]

The throttle works fine-- I have another controller and motor on the bench which I can control w/ the throttle (although one phase isn't working on that controller)...

 

[fitek]

The uC on the board is a STM8S207S6T6C in LQFP44 package (11 pins per side). FETs are p75nf75

Datasheet available here:
http://www.st.com/stonline/products/literature/ds/14733/stm8s207c8.pdf

The LED is definitely flashing 8 short pulses with the throttle disconnected. With the throttle connected, it flashes one long pulse.

 

[DAND214]

I wish they would keep the product the same for a while.
I have the 12 fet controller and the self teach wire is the white ones.
Did you try just the phase wire plugged in and the throttle?
If I change hubs I plug the phase and halls and throttle then plug the battery in. Try the throttle if nothing I connect the white wire and it figures out the rotation. Unplug the white wire and try it.
How old is the controller, mine is from Feb this year. So far works great 6 fet and 12 fet all work great.
You can try it without the halls also.
Dan

 

[fitek]

DAND214,

I did try just the throttle and power wires, but no signs of life at all. I am afraid I may have hooked up two of the wrong wires trying to get the train mode to work. I was running this controller with a Hyperion RC motor for several months, and everything was good. Then my tandem ebike started misfiring on one phase, so I swapped this controller over to test whether the Kollmorge motor or v1 ecrazyman controller is toast. It didn't work; I do not recall if nothing happened, or if it stuttered. Since I remembered this model has a "training" mode, I tried attaching each of the unconnected wires to its companion (there are also two brown wires which also connect together) to try and enter training mode. After that, it no longer does anything at all, ever, except for the LED flashing one pulse or 8 if the throttle is disconnected.

My BMSBattery controller model does NOT have two white wires; it has a white wire whose connector plugs into a purple wire however. I looked through some other posts, and someone else on this forum has the same controller-- it looks identical to earlier models, but does not have two white wires, just white and purple and two brown.

I placed my order Feb 15 but it was not shipped until Apr 12 this year; I suspect they packaged my order in April then, and I got whatever they had in stock then.

It occurs to me that maybe I should try the controller with the original Hyperion, maybe the BMSBattery controller does not like the Kollmorgen for some reason, although I can't rationalize why that might be.

Man I am really sick of all these controllers, I have ONE working controller left, and more than half a dozen dead ones in a box. So far the 72v sensored Ecrazyman has been the only reliable controller. The v1 ecrazyman is OK but "touchy."

 

[amberwolf]

I can understand your frustration; I've got a box of various dead controllers I'm slowly learning how to fix (and which arent' worth trying), both analog and digital types. Some are very similar, with so few differences that I'm not sure why they bothered changing from the reference design at all.

But figuring out how to hook each one up is a huge PITA, as most have no directions at all, and even the ones that have some wiring chart available from the distributor dont' seem to usually have the right colors listed (if any), or the wrong connector types, or even not having all the wires that are on the controller listed on the diagram or vice-versa.

I'm trying to work out charts for all the ones I have that do work so that I can easily swap them around as needed on my experiments, and when i get that done I'll be posting them up in the motor/controller hookup diagram thread (sorry I can't remember the name or link).

I wish it was as easy as simply figuring out the phase and hall wires on every controller, because a spreadsheet will let you do that, but there are often other features on a cotnroller that require the right hookups to be connected to even get a peep out of them!

BTW, if you (or anyone) ever get the urge to get rid of any fried controllers (or other stuff), then depending on cost I'd be interested in the corpses.

 

[bzhwindtalker]

hello!
I had the same problem on mine, did you change your battery voltage? On mine, when my batt was fully charged, the controller did not turn on, but a precharge resistor made it!

 

[fitek]

I did not change the voltage. The label says "36v/48v". I am using a 36v Makita pack (40v actual).

 

[bzhwindtalker]

for me, the problem happened above 41volts aprox... has something to do with initial power surge imo, as I never had a probem with a power supply, even at higher voltages!

 

[fitek]

Well, bzhwindtalker, if you're ever near San Francisco I owe you a beer. Or, if I ever make it to Brittany...

In fact, I tried the controller with my bench supply and it does indeed work. I'm going to try finely tuning the voltage and see where it stops working.

 

[bzhwindtalker]

I killed a 6 fet unit trying to repeir it before i figured this on the 12 fet

 

[chvidgov.bc.ca]

Are you sure you hooked up the throttle? I've got the same controller, and its not immediately obvious which is the three wire PAS connection, and which is the three wire throttle. I hooked up the PAS, thinking it was the throttle as those connectors worked seamlessly as supplied. NADA. Also, I'm not bothering with Halls, on my 9C - it runs great in sensorless mode. The plug on the PAS attaches to a typical throttle, say from ebikes.ca., the throttle connector on the controller doesn't. I had to strip off the connectors and solder the three sets of wires together...