Heater temperature drop when G30 command is executed

[Karabox]

four tries axis z homing (first from low altitude)

The pid works fine, but when I park my head through the G30 command, I see the temperature drop. After the end of parking, the temperature returns to the set value.

what am I doing wrong ?

[Phaedrux]

Your M558 command probably has a B parameter to stop heaters during the probing move.

https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m558-set-z-probe-type

Bn If 1, turn off all heaters while probing, default (B0) leaves heaters on.

Sometimes heaters can cause magnetic fields which affect the probe.

[infiniteloop]

@Karabox said in Heater temperature drop when G30 command is executed:

when I park my head through the G30 command, I see the temperature drop

G30 doesn’t affect temperatures. What happens to the temperature chart if you run a G30 from the command line?

Do you call a macro like homeall.g, homez.g or similar when these drops occur? What physical setup do you use: maybe a tool changer?

[Karabox]

@Phaedrux

You are right, I didn't even remember about this parameter. Thank you very much