Topics created by Del87

@dc42 yes but 1 or 2 warning looks not so scary as a lot of on the first screen.

@phaedrux okay

@del87 Oh, if you want that, you should get a regular AC UPS system and hook that up.

I'm not going to do the math unless you insist, but I think you're going to need a LOT of capacitors on the 24 Volt DC line to run a printer for several seconds without getting an undervoltage stop.

This "UPS" seems to have enough juice to immediately stop the heater(s) and move the Z up a little and then shut down the printer. Not enough to be able to continue printing during that time.

I guess if you want it to auto-start (I don't think that's a good idea) you could try holding in the reset button and see what happens.

@del87 said in Duet 3 mini 5+ sensorless homing not working:

Btw at V parameter = 10 there was some strange errors "driver short to ground".

This is not unusual. From section 6.5 of the TMC2209 datasheet at https://www.trinamic.com/fileadmin/assets/Products/ICs_Documents/TMC2209_Datasheet_V103.pdf:

For applications requiring high velocity motion, SpreadCycle may bring more stable operation in the upper velocity range.
...
A motor stall or a sudden change in the motor velocity may lead to the driver detecting a short circuit or to a state of automatic current regulation, from which it cannot recover. Clear the error flags and restart the motor from zero velocity to recover from this situation.