Grin Technology Phase Runner L-10 error code( 2-5 Instantaneous Controller Over Voltage)

[spikeytree]

Hello group,

I am getting a error code 15 ( 2-5 Instantaneous Controller Over Voltage ). It would go away after a reset. i have reload the firmware for both the controller and display and tried two 36v battery with at least 80%+ charge. I am not sure what is the cause of this error and i am hoping someone can give me some insight on the issue.

FYI i have already contact Grin Technology and i am guessing that it might need a controller.

 

[amberwolf]

Is this a new problem, or has it always happened with this system?

What are the specific circumstances the error occurs during?

Does the error *always* happen under those specific circumstances?

Or does it only happen sometimes?

If the latter, it is possible there are additional circumstances not yet noticed that happen only when the error occurs.

What are the voltage settings (all of the ones that mention voltage) set to, in the setup program? Perhaps one of these is too low for the system as you have it setup, under the specific circumstances when you see the error.

 

[spikeytree]

Thanks for replying!

The controller condition is as shown in the picture. https://photos.app.goo.gl/VJuPWgiaZPiyaGNX9

This issue just started just started a week ago. The system would stop providing assistant after providing a short burst of power. I had some issue with a 52v battery and have contribute it to a faulty BMS. The issue percussed after the bms replacement but would remain on under light assist. I swapped the battery to my spare 36v unit as i thought the cells failing in the 52v unit. I discovered the fault code when i was accessing the software to reconfiguring it for the 36v system. I have updated both controller and display to the latest firmware. I have also reloaded the factory config a few times with no help.

 

[amberwolf]

Since the error is for an *over* voltage error, it wouldn't make sense for it to be a problem with a battery being *low* in voltage (like bad cells), or for it to continue to happen with a much lower voltage battery (36v vs 52v). It is probably unrelated to the battery (even if the battery does have a problem).


So...if the problem is only a fault code read out when connected to the setup software, and is not a problem you can see in realtime, it is going to be difficult to troubleshoot, since you can't know the exact circumstances it is caused by.

If the assist failure is related to the error, then you can try different things to determine what specifically causes it.

For instance: clear the fault log so you know the error is not present, then try various things, like just turning on the system, then turning it off, and checking the log. Try that several times, with both the 52v and 36v batteries, and see if you get the error.

If not, try riding the bike just for a very short test, then check the log, and again try a few times in case it is intermittent. try it with as light an assist as you can without a problem, right up until it has the problem, checking the log for the error each time.

And so on, trying different things during the very short ride, then checking the log.


If you have a system that can generate regen braking voltages (even if you are not using the function), maybe it is doing this and the regen spike is high enough to exceed some limit in the system. Or maybe it is a connection fault between the motor and controller, allowing arcing between the contacts (this usually leaves some visible sign). I am only guessing, not knowing what your complete system is, or your usage of it, or when the error actually occurs in relation to your usage, etc.

 

[spikeytree]

Hello Amber,

I made a mistake, the fault is for under voltage. You are right, i am starting to think that it isn't battery related. I have clear out all of the errors and reset all parameters to factor spec but the issue persist. At this point i will touch base with Grin and post their reply. Thanks!

 

[spikeytree]

Amber, thanks for your help. I found my issue based on our conversation.
I reinstall the 52v battery and although it still might have cell issues it functions okay during low load condition.
With that fact i went though my controller settings again as it was the controller that flag the issue.
Long story short the "load default" function only resets the motor parameter and not the batteries.
On the "advance setup" menu the battery was still set at 52v which cause a under voltage error.
After correcting my settings the system now works great. Thanks for all of your help!

 

[amberwolf]

Glad it helped. Sometimes it just takes another pair of eyes to look at things from a different angle.

If you need help troubleshooting the battery, there are a lot of such threads here on ES you can look thru for methodology.