Auto-sleep not working as expected

yonutz33 · 2 Feb 2020, 13:01

Hello,

I've got the Duet maestro running on a CoreXY machine (Sapphire Pro). I have enabled auto-sleep and added the following to the sleep.g file: M81 S1 ; shutdown
It should shutdown the machine once a print is finished after extruder cools down to below 45C. But it never works/never gets triggered. Anybody got any idea why this might be happening?
I'm using this version of the firmware: 2.04 (2019-11-01b1)

Thanks in advance

Phaedrux · 2 Feb 2020, 17:15

To begin with I would suggest updating to firmware 2.05 and the latest DWC 2.0.7 and testing again.

dc42 · 2 Apr 2020, 09:53

M81 S1 turns the PS_ON output off once all thermostatic fans are off. So it will only work if you use PS_ON to control your PSU, and the printer cools enough to turn all your thermostatic fans turn off.

yonutz33 · 4 Feb 2020, 09:50

@dc42 said in Auto-sleep not working as expected:

M81 turns the PS_ON output off once all thermostatic fans are off. So it will only work if you use PS_ON to control your PSU, and the printer cools enough to turn all your thermostatic fans turn off.

Yes, i get that. I have setup the board to use an SSR and a button as described in the BLV MGN cube wiring (i can give you a link if that helps) for the startup, so PS_ON is used to turn the printer on. I know it will shut everything once it reaches temperatures of <45C but that never happens.

dc42 · 4 Feb 2020, 09:53

Does M81 with no parameters turn the printer off immediately?

yonutz33 · 8 Feb 2020, 14:14

Yes M81 without parameters shuts down the printer immediately.

Even M81 S0 works, if i execute the command manually during a print it will shut down once it's done and temp reached values lower then 45C.

dc42 · 2 Aug 2020, 15:06

Please post your config.g file. Also your stop.g file, if you have one.

yonutz33 · 4 Mar 2020, 20:01

I will post this comming weekend. Sorry for answering after such a long time, I was away on business trips.

Also i discovered that my Fotek SSR (china crap) remained latched randomly even though i instructed it differently through the Duet. I've retested it on my bench and 1 in 5 cases it remains energised. I've ordered a better branded one and once i've replaced it i will get back to you.

yonutz33 · 9 Mar 2020, 18:22

@dc42 Here they are config.g and stop.g
Stop.g seems to be empty, only comments.