PJR wrote: ↑
Fri May 18, 2018 7:57 am
tiago.c wrote: ↑
Thu May 17, 2018 10:20 pm
This happen to me when i got a power outage, i use a APC Back-UPS 1400VA 230V, heaters go down but printer continue to print and do the moves util thermal runaway error come. When power resume heaters come back. Can this be the cause even with a UPS?
No all UPS are equal. It is possible that there is a short outage being passed to the printer, but that does not explain why the heaters son't turn on almost immediately. This would tend to indicate there is a problem in the PSU sensing circuitry.
Well i can't test with other UPS buy my history is:
MK2s + APC Back-UPS 1400VA 230V + Power Outage = All Works
Then i sold mk2s, and the UPS
I buy a new mk3 and new same model UPS.
Now mk3 + APC Back-UPS 1400VA 230V + Power Outage = Heaters go down.
Tried manual switch of, bed at 60ºc and same behaviour happens.
I have all "smart" feature off.
Soon i will move to a enclosure with a proper 24V 20A PSU, i hope the new PSU able to fix this problem... If the power outage is short, like few seconds no problem at prints, but if minutes of outage it will ruin the print.