Seven said:Has anyone taken a current draw reading on the screen switch vs the controller switch
lennovich said:quick update on my controller guys...i soldered a 30kohm smd resistor on the resistor that adaptto said en it works fine!
Can set full phase amps now without motor cut...![]()
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It's a beast now![]()
Bluefang said:Anyone had a failure in their controller where they can then shake it and it rattles.
Running a Qulbix frame with a cromotor in a 19" motorbike wheel, 3kwh of lipo. Max-e was flashed to the latest firmware and had run for a couple of test rides, then took it for a ride to work and on the way home it lost power and started to feel very heavy cogging from the cromotor, this is after earlier it got stuck on full throttle needing a reset to clear. I am using a motorbike pull throttle and a Gwhy hall adapter box but i dont really think the cable was jammed or anything as it was fine straight after i reset it.
This was all at midnight so i shut it down and came back to it in the morning. Turned the screen to active, tried the throttle with the bike on a stand and i had magic smoke. Quickly disconnected the battery, pulled the controller from the bike and it now rattles when i shake it. I have a spare controller i can use now but more scared of the cause, the Cromotor seems to spin normally disconnected from the controller.
I have emailed adaptto and will send the controller back to them for dissection. Been great setting it up and having it all with a BMS, charger and screen all in one.
i would check the wire resitance of the motor.Bluefang said:Still locked and most of the running wss in normal mode at -4kw with the rest in eco. Abit odd as i would have thought they have a ton of protection. Hoefully i just got unlucky and some one forgot to do up a screw lol. I have tested the continuity between the motor phases and the hub axle and i get nothing and used a hallreader on the halls and they are all good. Anyother suggestions before i hook up the next controller.
Doctorbass said:lol.. I just comeback from a ride with my MAX-E and 5302.. i needed to walk the last 1km... motor vibrate alot.. but the hall are ok according to the controller.. i waws abel to run at about 20kmh max at 2000W with very high vibrations from the motor..
I am not sure if it's trhe motor phase that have melted or the controller that could have a blown fet... but it still work.. but with very high vibration and heat very fast!....
I'll check what hapenned in teh next hour.. but from now i need to keep the motor outdoot with the bug 24" fan to cool it down .. otherwise my garage will smell hot motor winding for hours!
Doc
cwah said:Doctorbass said:lol.. I just comeback from a ride with my MAX-E and 5302.. i needed to walk the last 1km... motor vibrate alot.. but the hall are ok according to the controller.. i waws abel to run at about 20kmh max at 2000W with very high vibrations from the motor..
I am not sure if it's trhe motor phase that have melted or the controller that could have a blown fet... but it still work.. but with very high vibration and heat very fast!....
I'll check what hapenned in teh next hour.. but from now i need to keep the motor outdoot with the bug 24" fan to cool it down .. otherwise my garage will smell hot motor winding for hours!
Doc
You were talking about peace in mind and no need to repair with more expensive controller... but at the end of the day you still need to fix issues!
Doctorbass said:I confirm that i have a blown phase on my max-E... even with locked firmware it is possible.
I have a dead short between that phase and the negative or positive.
but i did not heard any popcorn.. when i have slow down after abot 5 minutes of high speed try, and wanted to re-accelerate again.. the motor just vrbrated aot ( BRRRRRRrrrrr)
But the controller was still working! but with hard restriction as well on the motor but it was still working at least... i returned to home at abot 15-20kmh consuming 2kW with my motor temp rising to 160 celsius....
I was not sure if it was a melted phase connector or wire or hall sensor.. so i was able to check with the display still working and i saw these 3x 0 and 1 digit working perfectly, confirming that the hall are ok.
i took a look to the phase wire and they was looking fine and no melt...
The controller fet was at 45 celsius...
This make me think that i will probably ask for a lower kv cromotor!.. well at least under 10.
All motor that i had that had kv above 10 all blew one of my controller... but all motor with kv under 10 never blew any controller..
Fortunatly on my MAX-E the firmware is still locked so it is still under warranty.![]()