I just checked continuity on the motor through the plug and my meter beeped so the motor seems to be ok.
I swapped bottom left and bottom right motors and got the same error, bottom right not found. However, the bottom left was found regardless (even with the bottom right motor plugged into it).
That seems to isolate the issue to that bottom right plug. It appears to be soldered in correctly from visiual inspection. When I have the motor plugged in I read continuous with my meter on the solder joints. So its making a good connection with the board through the solder joints…
Ok, that makes sense, the only thing that doesnt make sense is the fact it’s happened to me twice in a row with two different boards (the first board was labeled as v1.10 and the second v1.12).
Like I mentioned before, I have a third board. I am just hesitant to plug it in and go through all the set up for fear of blowing another driver chip.
I did have an Idea I thought i’d run by you guys. What if I moved that motor arm to a completely new location for the third board. IF the motor driver blows again and it follows to the same side as this bottom right motor arm then perhaps that would mean that the motor arm is causing the blown drivers? Its a gamble but its the only thing I can think of to try.
Also, I should mention, when I work through all of the set up I am following the setup guide as closely as I can. The error has occurred both times after performing the calibration (anchor points) set up. Both times the same motor driver blows.
For this third board, do you guys have a specific procedure you would like me to try?
Ok, that makes sense, the only thing that doesnt make sense is the fact it¢s happened to me twice in a row with two different boards (the first board was labeled as v1.10 and the second v1.12).
Like I mentioned before, I have a third board. I am just hesitant to plug it in and go through all the set up for fear of blowing another driver chip.
I did have an Idea I thought i¢d run by you guys. What if I moved that motor arm to a completely new location for the third board. IF the motor driver blows again and it follows to the same side as this bottom right motor arm then perhaps that would mean that the motor arm is causing the blown drivers? Its a gamble but its the only thing I can think of to try.
mark the arms before you move themn so that you kwow which is which but I think
it’s a good idea. you don’t need to take the motor off the arm, just swich which
arm in which order
I would also do a bunch of extend/retract cycles with the new board before
putting it under load. does one arm need higher current limits to move reliably?
Also, I should mention, when I work through all of the set up I am following
the setup guide as closely as I can. The error has occurred both times after
performing the calibration (anchor points) set up. Both times the same motor
driver blows.
For this third board, do you guys have a specific procedure you would like me to try?
My power electronics knowledge isn’t amazing, but I think in this situation where it appears there’s a potentially bad motor, and the rest of the motors seem fine, I’d be poking around I’m with a multimeter comparing between each to see if I can find anything.
It sounds like maybe there’s a short? But also it might be an intermittent one, maybe based on the motor position or loading which would make it tricky to isolate?
yes it does have a heat sink. It seems to be installed correctly. the only thing I can think of would be to disassemble completely and reassemble that arm. maybe its a mechanical causing a hardware issue. sorry for the delay in answering these replies. But thank you. and @bar I agree, the fact its happened twice is so strange and unlikely.
I am having the same issue but on the v1.10b board: blinking red light and no retraction during first calibration attempt. Did you ever get your issue solved @Drew_Adkins
No I am still working through it. My first board that came with my Maslow was a 1.10 and then it happened again with the 1.12 as well. I work full time and we are currently building a house so I don’t have much time to troubleshoot this but I will keep everyone posted in this thread of anything else I find or come up with. Please keep me posted as well if you find a fix!
My next plan is to completely tear apart and rebuild the arm that is the common denominator for the blown driver (in my case the bottom right). I will rebuild it and see if maybe it just has high resistance causing the driver to blow. Hopefully I can get to that this weekend.
Could this be a short circuit in the motor? Can you measure the resistance of a good motor and compare it to the problem one. A jammed motor might also cause a high current, but that should be limited by the controller software.
I havent tried this exactly yet, but what is so strange is that in both cases for me prior to running the calibration sequence the motor would perform without issue multiple extend and retract functions. It was only after the calibration where it broke. Maybe the calibration sequence throws more current to the motors or something? I am not sure.
I havent tried this exactly yet, but what is so strange is that in both cases
for me prior to running the calibration sequence the motor would perform
without issue multiple extend and retract functions. It was only after the
calibration where it broke. Maybe the calibration sequence throws more current
to the motors or something? I am not sure.
retract-all and calibration both pull until they hit the configured current
limit. It’s possible for the instantanious current to be above the limit
