extruder starts without commands
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Hello,
The printer mounts a duet 2 wifi, has a coreXY kinematics and mounts a double extruder. I've been working on it for some time but I haven't found a solution yet,problem:
when I power up the duet the two extruders heat up without any command. They are uncontrollable by the duetWebControl and also by the panelDuetany suggestions can help, thanks
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this is the code of the extruders
; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B4092 ; configure sensor 0 as thermistor on pin bedtemp M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0 M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8 ; configure sensor 1 as thermistor on pin e0temp M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1 M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M143 H1 S260 ; set temperature limit for heater 1 to 260C M308 S2 P"e1temp" Y"thermistor" T100000 B4725 C7.06e-8 ; configure sensor 2 as thermistor on pin e1temp M950 H2 C"e1heat" T2 ; create nozzle heater output on e1heat and map it to sensor 2 M307 H2 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M143 H2 S260 ; set temperature limit for heater 2 to 260C
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@dvd479 sounds like you've wired them incorrectly (although difficult to do) or you've blown the mosfets.
Post a high quality photo of the area around the two heater outputs. -
To verify your config isn't the cause, remove the SD card and power up. It doesn't seem like that is the case from what you posted, but you haven't shown the full config.g either.
If the heaters still heat up with the SD card removed, then it's either the mosfets or the wiring. Photos of the wiring would help us confirm that.