Stepper Driver Overtemp Issue
I’ve been commissioning my VC4 for a few weeks now trying to dial it in. I noticed that the commissioning guide was updated and in it the guide says to turn on performance mode once you’ve determined the machine works properly. When I turned it on, the motors are moving way faster which would be great, but now I’m getting stepper_Z2 over temp errors. Before the z2 error I was getting an x1 error too. What happened? The machine was almost completely commissioned prior to this then when I turned on performance mode, everything got thrown out of wack.
Exact message from console
TMC ‘stepper_z2’ reports error: DRV_STATUS: 801c0103 otpw=1 (OvertempWarning) ot=1(OvertempError!) t120=1 cs_actual=28 stst=1
I have confirmed that my large single cooling fan is on and blowing the right direction but it’s still overheating the drivers
6 Replies
This is the fan that came with my machine. I see that there are two styles of enclosure. The other style has 3 fans on the side. I have confirmed it only runs when the steppers are running
I think you have your electronics enclosure backplate reversed, and thus the fan isnt exactly pointing on the drivers
Mine looks like this, with the least distance between fan and the top
Yep that’ll do it😂
Now my fan isn’t running while the steppers are running for some reason. It runs when the machine faults. As well as the part cooling fan, but when I start moving the steppers the fan turns off. Any ideas?
I had the wrong fan option selected in the configurator. It was set to 4 pin fan not 2 pin
Glad you figured it out, feel free to mark this as solved