Duet3mini driver gets HOT after a few seconds of movement
likevvii last edited by likevvii
I am currently testing a newly built printer's motions.
After a successful sensorless home sequence, the driver would get burning hot to the touch after a few seconds.
Soon after, I would get driver temperature warnings, then driver short to ground warning and finally, the motors are disabled in the span of 20 seconds. BOTH drivers get hot.
- Duet 3 mini 5+ @24V
- Core XY printer (E3D tool changer motion system only)
- Motors are 2A continuous rated
Originally, the motor current settings was set to 1800, I dropped to 1300 and the problem did not get any better.
I had initially got the wiring incorrect for both the motors. supposed to be AABB, but It was wired as ABAB. I got the driver short warning, swapped to the correct wiring and movement works properly now (except for the rapid overheating issue). Maybe I damaged the driver by having the wire issue.
; Drive direction M569 P0 S0 V60 ; Drive 0 X M569 P1 S0 V60 ; Drive 1 Y M569 P2 S1 ; Drive 2 Z M569 P3 S0 ; Drive 3 E0 M584 X0 Y1 Z2 E3 ; drive mapping M208 X0:250 Y0:250 Z0:250 ; Set axis maxima & minima M92 X100 Y100 Z1600 E690 ; Set steps per mm assuming x16 microstepping M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation M566 X400 Y400 Z8 E300 ; Set maximum instantaneous speed changes (mm/min) M203 X35000 Y35000 Z1200 E3600 ; Set maximum speeds (mm/min) M201 X6000 Y6000 Z400 E1000 ; Set accelerations (mm/s^2) M906 X1300 Y1300 Z1330 I30 ; Idle motion motors to 30% M906 E450 I10 ; Idle extruder motors to 10% ; Endstops M574 X1 Y1 S3 ; Set X / Y endstop stall detection M574 Z0 ; No C Z endstop ;Stall Detection M915 X Y S3 F0 H400 R0 ; X / Y Axes
; homex.g ; called to home the x axis G91 ; use relative positioning G1 H2 X0.5 Y-0.5 F10000 ; energise motors to ensure they are not stalled M400 ; make sure everything has stopped before we change the motor currents M913 X20 Y20 ; drop motor currents to 25% M915 H200 X Y S3 R0 F0 ; set X and Y to sensitivity 3, do nothing when stall, unfiltered G1 H2 Z3 F5000 ; lift Z 3mm G1 H1 X-400 F3000 ; move left 400mm, stopping at the endstop G1 H1 X2 F2000 ; move away from end G1 H2 Z-3 F1200 ; lower Z G90 ; back to absolute positioning M400 ; make sure everything has stopped before we reset the motor currents M913 X100 Y100 ; motor currents back to 100%
Maybe I damaged the driver by having the wire issue.
I'm thinking so, but will check with DC42.