Extruder Heater Issue

[xtarr]

Hi, I am using a 50W 120V extruder heater through a solid state relay on a Duet3 6HC rev3.3. When I go to tune the setup (M303) or set an active temperature through the duet web controller, the extruder does not heat up and I get this fault:

Error: Heater 1 fault: temperature rising much more slowly than the expected 1.8°C/sec

To make sure the solid state relay wiring was right, I plugged in 12V power supply to the control side of the relay and the extruder heated right up, so I feel that my error is somewhere within the configuration. Below is my current configuration file:

; Configuration file for Duet 3 (firmware version 3)
; executed by the firmware on start-up
;
; generated by Xavier Tarr
 
; General preferences
G90                                                									; send absolute coordinates...
M83                                                									; ...but relative extruder moves..
M550 P"Duet 3"                                     									; set printer name
 
; Drives
M569 P0.0 S1                                       									; physical drive 0.0 goes forwards
M569 P0.1 S1                                       									; physical drive 0.1 goes forwards
M569 P0.2 S1                                       									; physical drive 0.2 goes forwards
;M569 P0.3 S1                                       									; physical drive 0.3 goes forwards
;M569 P0.4 S1                                       									; physical drive 0.4 goes forwards
;M569 P0.5 S1                                       									; physical drive 0.5 goes forwards
;M569 P1.0 S1                                       									; physical drive 1.0 goes forwards
;M569 P1.1 S1                                       									; physical drive 1.1 goes forwards
;M569 P1.2 S1                                       									; physical drive 1.2 goes forwards
 
M584 X0.0 Y0.2 Z0.1 ;A0.4 B0.5 C1.0 E0.3:1.1:1.2    									; set drive mapping
M350 X16 Y16 Z16 ;A16 B16 C16 E16:16:16 I1          									; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E420.00;:420.00:420:00   									; set steps per mm
;M92 A80.00 B80.00 C400.00															; set steps per mmM566 X900.00 Y900.00 Z60.00 A900.00 B900.00 C60.00 E120.00:120.00:120.00        	; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 ;A6000.00 B6000.00 C180.00 E1200.00:1200.00:1200.00	; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 ;A500.00 B500.00 C20.00 E250.00:250.00:250.00            ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 ;A800 B800 C1500 E800:800:800 I30                       			; set motor currents (mA) and motor idle factor in per cent
M84 S30                                            									; Set idle timeout
 
; Axis Limits
M208 X0 Y0 Z0 A0 B0 C0 S1                                   						; set axis minima
M208 X400 Y400 Z200 A230 B210 C200 S0                             					; set axis maxima
 
; Heaters
; Thermistor
M308 S0 P"0.temp0" Y"thermistor" T100000 B4138 										; configure sensor 1 as thermistor on pin temp0
M950 H1 C"0.out0" Q10 T0                           										; create nozzle heater output on out0 and map it to sensor 1
M307 H1 B0 S1.00                             										; disable bang-bang mode for heater  and set PWM limit
M143 H1 S400                                 										; set temperature limit for heater 1 to 280C
 
; Endstops
M574 X1 S1 P"io0.in"   																; X min active high endstop switch
M574 Y1 S1 P"io1.in"   																; Y min active high endstop switch
 
; Tools
M563 P0 D0 H1                                   									; define tool 0
G10 P0 X0 Y0 Z0                           									; set tool 0 axis offsets
G10 P0 R0 S0                                       									; set initial tool 0 active and standby temperatures to 0C
 
; Miscellaneous
M911 S10 R11 P"M913 X0 Y0 A0 B0 G91 M83 G1 Z3 C3 E-5 F1000" 						; set voltage thresholds and actions to run on power loss
 
;M564 H0											   									; allow axis movement before homing.

Thanks in advanced for your help.

[peirof]

@xtarr

I don't know anything about the Duet 3 board, so I can only tell you to check the wiring.

• That the cables are fine
• That you have connected it to the correct Heater
• That the thermistor is also connected.

If you have a multimeter, you can check if when it should be heated, there is voltage in that Shoket ... and if you don't have it, connect something 24v, such as a fan, if the Duet commands it to heat up, 24v should come out and turn the fan,

[achrn]

@xtarr said in Extruder Heater Issue:

M307 H1 B0 S1.00                             										; disable bang-bang mode for heater  and set PWM limit

You've disabled bang-bang but not set any PID process parameters. Have you set the heater tuning elsewhere?

For a quick check you could substitute B1 back in and see if it heats. Then look at M303 to get the parameters to put in the M307.

[Phaedrux]

Have you done a PID tuning with M303 H0 S60 and then saved the results with M500? You also need to add M501 to the end of config.g to load the saved results.

https://duet3d.dozuki.com/Wiki/Tuning_the_heater_temperature_control

[MightyRaith]

@xtarr The advise re the PID tune is definately worth looking into for sure.

[xtarr]

Thank you everyone for the help! My initial problem was in the wiring. I forgot to add power into out0 in.

Working on PID tuning today so I will get to jump into the rest of the M commands.