Motor phase disconnected problem?
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6:54:46 PMM906
Motor current (mA) - X:1500, Y:1500, Z:1500, E:1200:1200, idle factor 30%
6:54:34 PMError: motor phase A disconnected on drivers 16:57:27 PMM913
Motor current % of normal - X:100, Y:100, Z:100, E
100
6:56:51 PMError: motor phase A disconnected on drivers 1I only have the BLTouch connections on the expansion header on heater 3. The X axis motor and extruder motor aren't and haven't given me the error while the Y axis and z axis both have given me the error but I couldn't reproduce the x motor having the issue at the moment.Here is the current software information
Firmware Name: RepRapFirmware for Duet 2 WiFi/Ethernet
Firmware Electronics: Duet WiFi 1.02 or later
Firmware Version: 2.02RC2(RTOS) (2018-09-07b2)
WiFi Server Version: 1.22
Web Interface Version: 1.22.6
Web Interface by Christian Hammacher
Licensed under the terms of the GPL v3 -
so you swapped the wiring. can you swap the motor to make sure its not the motor?
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It is 3 different motors that are all giving me the message but I can swap the motors if that would make it easier to diagnose?
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so far you have only shown the error message about phase A on driver 1.
does it happen with all phases on all drivers?
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I was also getting the error message on the Z axis motors but that error message is random and hasn't happened again.The Y axis does it everytime.
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The motors attempt to move when using DWC but they stutter shaking back and forth. I attempted raising the voltages slightly but it made no difference.
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@siblues said in Motor phase disconnected problem?:
6:54:46 PMM906
Motor current (mA) - X:1500, Y:1500, Z:1500, E:1200:1200, idle factor 30%M906 X1200 Y1200 Z1200 E1200 I30 ; Set motor currents (mA) and motor idle factor in per cent
this does not match
but you have a M501
so please post your overwrite.
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@siblues said in Motor phase disconnected problem?:
The motors attempt to move when using DWC but they stutter shaking back and forth. I attempted raising the voltages slightly but it made no difference.
Common reasons for this:
- Motors not phased correctly. This is serious as it can cause the drivers to be damaged. So check that the motor phases are connected correctly first.
- Bad crimp connection in the motor wires, so that only one phase is being energised.
- Speed and/or acceleration set too high, bearing in mind the steps/mm (higher steps/mm => lower accelerations and speeds possible).
- Weak PSU, so that the voltage drops below 10V when the motors draw current.
- Blown stepper driver.
- Blown motor.
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@veti Here is the override and the current was changed to 1500 to test it is set at 1200 usually.
@dc42 The motors have been working just fine for a while with that original harness and the harness has since been replaced.The printer has a genuine Meanwell 450watt 12v psu and it only fluctuates .02 volts.Here are the current motor settings for what I have set for speed.
; Drives
M569 P0 S0 ; Drive 0 goes forwards reversed
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S0 ; Drive 2 goes forwards reversed
M569 P3 S1 ; Drive 3 goes forwards
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X80 Y80 Z400 E415 ; Set steps per mm
M566 X900 Y900 Z12 E1200 ; Set maximum instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z180 E1200 ; Set maximum speeds (mm/min)
M201 X500 Y250 Z250 E2500 ; Set accelerations (mm/s^2)
M906 X1200 Y1200 Z1200 E1200 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeoutI can check the motor but how would I check for a blown driver and what would cause that to happen all of a sudden?
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@siblues you can check to see if it's a driver by swapping the motors plugged into a working axis with the not working one. Drivers can get blown when wiring develops intermittent faults in a single phase.
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I had some motors on the way so I tried what Tony mentioned and it was a bad motor.
