M25 resume-after-power- fail-state saved?
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My D-BOT with Duet Wifi have got a strange behavior, it release a 
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The firmware is claiming that the X motor (assuming that you haven't used M584 to remap the X driver to) is disconnected or set to a very low current. Send M906 and M913 without parameters, to see what motor currents are set.
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Hi! Thank you for a quick respond to my problem.
I had used M584 to remap the X driver, but now I have it back on the original position. And the warning report list looks way better. At the same time I looked over all the electrical on the main board, to eliminate any problem with the hardware. I don't use the M911 code yet, is this something I should have done? -
The M991 command is needed only if you want to activate the resume-after-power-fail feature. https://duet3d.dozuki.com/Wiki/Setting_up_to_resume_a_print_after_a_power_failure
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Hi!
I did find where the problem was, I changed the Y and X motors from 1.8 steppers to 0.9 steppers a while ago. It looks like the holding torque of the 0.9 steppers was too low. When I stepped back, and mounted the 1.8 steppers, the printer worked as it always have. -
@knutk said in M25 resume-after-power- fail-state saved?:
Hi!
I did find where the problem was, I changed the Y and X motors from 1.8 steppers to 0.9 steppers a while ago. It looks like the holding torque of the 0.9 steppers was too low. When I stepped back, and mounted the 1.8 steppers, the printer worked as it always have.I'm glad you solved it. Typically, 0.9deg motors have a little less holding torque than 1.8deg motors from the same manufacturer with the same size and rated current. Example:
- 17HS19-2004S1 (1.8deg) 59Ncm
- 17HM19-2004S (0.9deg) 46Ncm
It gets more complicated if you change the motor length or rated current at the same time.