Debugging problems... help get bike working again please

[ryan]

Here's what I know...

Power: 85v from battery, into controller
Motor Halls: pass Lyen's ebike tester test
Motor Phase: pass Lyen's ebike tester test
Controller: brand new Lyen 18fet (because I thought my old one wasn't working... Lyen just told tested it himself and saw the old one was working just fine as well... either way, I have a fully functional controller in hand)

What's going on:
I flip the switch to give power to the controller... CA boots up, I see the "Cycle Analyst Version 2.0" screen for less than a second until it flickers off and the LED slowly gets darker, but stays on a bit.
I give it a bit of throttle... no response.
I give it a lot of throttle... no response.

I recheck to make sure all the wires are connected:
battery to controller: check
throttle to controller: check
controller phase to motor phase: check
controller hall to motor hall: check

Try again: no response

This isn't rocket science, but I'm losing summer here with a great bike that should work.

What in the world is going on? I'm at a loss.

 

[jtdiode]

Sounds like a bad CA. Take it out of the circuit and give it a try.

 

[itchynackers]

Do you have another functional ebike? If so, I narrowed down many problems by testing each part on the other bike.

 

[rebelpilot]

My money's on a bad battery connection.

 

[cassschr1]

Try bypassing the BMS's, both of em. I'm assuming discharge current is going through the bms

 

[amberwolf]

I'm assuming this is from this thread:
http://www.endless-sphere.com/forums/viewtopic.php?f=3&t=31766
In that thread, you said the CA is only getting 9V or so from it's power source at the controller. (BTW, that info might help in this thread; might've been better to keep your troubleshooting thread all in one place. Maybe just change the thread title as necessary by editing the title of the first post)

Does the controller actually measure 85V at it's input, on it's side of the power connectors, at it's wires? Or is the 85V measured just at the battery connector, without (or with) the controller plugged in?

I ask because it sounds like you have a no-load 85V at the battery, but as soon as you hook up the rest of the system to the battery, that drops to 9V or less, from a connection problem most likely. Could even be a slightly unseated connector pin in batt-controller plugs.


Assuming you actually get 85V at the controller itself, then:
Are you using the throttle-control abilities of the CA?

Is it a CA-DP model, or SA? I assume DP based on the power source.

If DP, have you tried unplugging the CA from the controller? What happens then? Make sure the throttle is running to the controller and not the CA, in this case.

Check the connection pins on the CA-controller connector, because you could have a bad connection at that point, again with 85V on the controller side but only 9 on the CA side.

 

[ryan]

The bms was the culprit. Bypassing both leads me to power!

The only thing left is to find my Lyen controller to Crystalyte phase wiring conversion. I have power but the phases are all messed.