Fan Sensor & PWM max extr. or bed

Ludis · 25 Feb 2017, 23:51

Hi,

The fan speed (sensor) displayed is always @0. it's known ? or a config has to do?
Where is the setting for the PWM max for extruder and Bed ?

Thanks

Ludis

StephenRC · 26 Feb 2017, 04:35

For the fan see https://www.duet3d.com/forum/thread.php?pid=6412#p6412

dc42 · 26 Feb 2017, 07:21

The max heater PWM setting is in the M307 command.

Ludis · 26 Feb 2017, 19:59

Many thanks for answers , good job.

Ludis

Ludis · 12 May 2017, 17:40

Hello,

What are modification setting when i switch my power supply 12V to 24V.
All my material is 12V (Heater, Bed, Fans..).

What Gcode for Max PWM fan ?
When modify M307 to "M307 H1 S0.5" , my heater has not good behaviour (high overshoot)

Can you solve my problem ?

Thanks.

Ludis

dc42 · 12 May 2017, 21:21

To switch to 24V you should get a new bed heater, new hot end heater cartridge, and new fans. I don't advise running a 12V heater on 24V at low PWM because of the fire risk if anything goes wrong. It's possible to add a 24V to 12V converter so that you can go on using 12V cartridge heaters and fans, but cartridge heaters and fans are so cheap that I don't think it's worth the hassle.