V_FUSED+ fuse reset?

davidewen

I’m having trouble with OUT_5.
I’m not able to turn the fan ON/OFF. I’ve tried multiple fans. All work on OUT_6.
The Hot End Fan (OUT_5) does a burst run during power up, then nothing afterwards.

Is it possible the fuse has been set off?
Can I reset the fuse?

What other trouble shooting can I do?

Here's my FANS setting in config.g

; Fans
M950 F0 C"out3" Q500 ; create fan 0 on pin out3 and set its frequency
M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"out5" Q500 ; create fan 1 on pin out5 and set its frequency
M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on
M950 F2 C"out6" Q500 ; create fan 2 on pin out6 and set its frequency
; M106 P2 S0 H-1 ; set fan 2 value. Thermostatic control is turned off
M106 P2 T45:65 H100:101:102 ; set fan 2 value. MCU & TMC2260 temp controlled (MCU heater H100, virtual heaters H101 & H102)

elmoret

@davidewen Do you mean to have thermostatic control on? Perhaps it is forcing the fan off due to temperature?

davidewen

@elmoret
Thanks for your response.

I'm no expert, but that is how it seemed to be explained on one of the instruction sets.

I assume the thermostatic is to turn on when hot end reaches xx degrees. Let's say 50°C for now. Otherwise it would be off.

My goal is to have the hot end fan off until needed.
Then it would turn on.
When the hot end cools, I would like the fan off.

David

Phaedrux

@davidewen said in V_FUSED+ fuse reset?:

M950 F1 C"out5" Q500 ; create fan 1 on pin out5 and set its frequency
M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on

This is correct assuming H1 is actually the heater you want to use, ie the hotend, and that out5 is actually where you're connected.

Post your full config.g please. The results of sending M122 and M98 P"config.g" in the gcode console couldn't hurt either.

davidewen

@phaedrux
Thanks for your help.
I re-loaded the config.zip from the RRF config tool.
Now the fan is ON and I can not turn it off.

All files attached per your request.

David

Fan ON version
config(1).g

Fan OFF version
config.g

M122 RESULTS.txt
M98 P(config.g).txt

elmoret

@davidewen Thermostatically controlled fans can't be controlled manually, so the behavior you're observing seems correct.

The difference between your config files is the set point temperature for the fan to kick on/off, so presumably the hotend is above 30C but below 45C in your tests.

davidewen

@elmoret
Ok, thank you.