@phaedrux I used a duet wifi v1.04.
Connected the 24V - to exp.heater3 on the expansion header and positive to VIN. Despite the wiring of the Fan to heater3 I didn't change anything.
After powering up, all my heaters (E0 and Bed) went crazy and started to heat without any command. I immediately killed the power and disconnected the fan. Since, the DIAG LED ist constantly red, so are the LED next to the USB connector and 3.3+(green) and 5V+.
There are no optical signs of a damage to the board however I am unable to establish a connection to it. I have already tried to erase the FW using the erase Jumper but still I cant connect to it. After 6s the MCU is too hot to touch it.
Im not sure what went wrong, would appreciate any further help. Thanks
Latest posts made by da97ed
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RE: connecting a fan to heater 3
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RE: connecting a fan to heater 3
@rjenkinsgb did exactly that and fried my board... thanks for nothing
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connecting a fan to heater 3
Hi
I'm trying to connect a thermostatically controlled fan at the heater 3 pin but I'm not sure how to wire this. The Fan should be Controlled by the MCU temperature.This is what I set up in my config.g so far:
M308 S3 A"MCU" Y"mcu-temp" ;display MCU temp within the graph M950 H3 C"exp.heater3" T3 ;creating heater 3 M950 F3 C"fan3" Q500 ;creating fan 3 M106 P3 C"MCU" S3 H3 T40:60 ;control Fan 3 thermostatically. start fan at 40 degrees and rise continually PWM Frequency to 255 when the temperature reached 60 degrees.
I would wire the fan as follows: Connect Fan + to heater3 pin and Fan - to GND.
Is this correct regarding wiring and my config GCode?Thank you all in advance.