Problems with drivers and PWM
pkirill last edited by pkirill
I feel like I’m having “cascading failures“... I recently got around to installing the Hemera I bought a couple months ago. Testing the extruder, all I get is a loud buzzing noise. Then if I wait a few minutes, I get another buzzing (slightly higher pitch) and then a warning that driver temp is getting high. I tried moving from driver 3 to driver 4- same results. I’ve replaced the cable, double checked pin out, reversed direction in config.g, and tested with a know good stepper - all with the same results.
The other issue I noticed is that only PWM 1 is controllable. PWM 0 and 2 both read 24V but fans don’t turn and shutting them down with gcode has no effect.
Looking for any ideas... thanks!
Danal last edited by
Some early hermera shipments had cracked gears and will jam. Disassemble and check.
pkirill last edited by
Just wanted to follow up here... Regarding the extruder, it turned out that I was relying on wire colors to match up the connections. [insert face palm here]
Using the "Connecting stepper motors" section from this page gave me the answer and I feel pretty dumb for not referencing it sooner. https://duet3d.dozuki.com/Wiki/Choosing_and_connecting_stepper_motors