Hotend cooling fan not starting
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Hi *,
I have a problem with my IDEX setup. The cooling fan for the hotend do not start when the hotend reaches 45 °C and I do not find any miss-configuration. Both hotends (tools) have one toolboard 1LC, T0 works as expected, T1 not.
The fan works when I add 12V to the screw terminals, so the wiring is OK.The communication between the Mini5+ and teh toolboards work as expected because the heater, thermistor and endstop work.
Firmware: 3.2
; Configuration file for Duet 3 Mini 5+ (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.2.0 on Thu Dec 31 2020 04:37:36 GMT+0100 (Central European Standard Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"Marge" ; set printer name ; Network ;M552 P0.0.0.0 S1 ; enable network and acquire dynamic address via DHCP M552 S1 M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ;; Toolboards ; M115 B121 ;; Show board 121 ; M997 B121 ;; Update tool 121 ; M122 B121 ;; Detailed status of toolboard G4 S1 ;wait for expansion boards to start ;; Drives ; Z M569 P0.0 S0 ; physical drive 0.0 goes backwards M569 P0.4 S0 ; physical drive 0.4 goes backwards ; Y M569 P0.1 S0 ; physical drive 0.1 goes forwards ; Left and Right tool stepper !!!!TODO!!!! X U M569 P0.2 S1 ; physical drive 0.2 goes forwards X M569 P0.3 S1 ; physical drive 0.3 goes forwards U ; Extruder steppers !!!!TODO!!!! M569 P121.0 S1 ; physical drive 121.0 goes forwards X M569 P122.0 S1 ; physical drive 122.0 goes forwards U M584 X0.3 U0.2 Y0.1 Z0.0:0.4 E121.0:122.0 ; set drive mapping M350 X16 U16 Y16 Z16 E16:16 I1 ; configure microstepping with interpolation M92 X160.00 U160.00 Y161.20 Z800.00 E420.00:420.00 ; set steps per mm ;M92 X80.00 Y80.60 Z403.02 E805 ; set steps per mm from RatRig M566 X900.00 U900.00 Y900.00 Z60.00 E120.00:120.00 ; set maximum instantaneous speed changes (mm/min) M203 X6000.00 U6000.00 Y6000.00 Z1000.00 E1200.00:1200.00 ; set maximum speeds (mm/min) Z180 M201 X500.00 U500.00 Y500.00 Z20.00 E250.00:250.00 ; set accelerations (mm/s^2) M906 X800 U800 Y800 Z800 E800:800 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Z-level settings M671 X-31.5:300.3 Y120:102 S30 ; Position of the leadscrews :: Snn Maximum correction ; Axis Limits M208 X0 U100 Y0 Z0 S1 ; set axis minima M208 X230 U300 Y300 Z200 S0 ; set axis maxima ; Endstops -- Display status with: M119 M574 X1 S1 P"121.io2.in" ; configure active-high endstop for low end on X via pin io0.in M574 U2 S1 P"122.io2.in" ; 2=high end 2=low end M574 Y1 S1 P"!0.io0.in" ; configure active-high endstop for low end on Y via pin io1.in M574 Z1 S2 ; configure Z-probe endstop for low end on Z ; Z-Probe M950 S0 C"121.io0.out" ; create servo pin 0 for BLTouch M558 P9 C"^121.io0.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds G31 P500 X0 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height M557 X15:215 Y15:195 S20 ; define mesh grid ;; Heaters :: Tune with: M303 H0 S110 ; Bed M308 S0 P"0.temp0" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp0 M950 H0 C"0.out0" T0 ; create bed heater output on out0 and map it to sensor 0 M307 H0 B0 S1.00 ; disable 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 ; Head 1 (left) ; Tune in with: M303 H1 S270 M308 S1 P"121.temp0" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin temp1 M950 H1 C"121.out0" T1 ; create nozzle heater output on out1 and map it to sensor 1 M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M143 H1 S280 ; set temperature limit for heater 1 to 280C ; Head 2 (right) M308 S2 P"122.temp0" Y"thermistor" T100000 B4138 ; configure sensor 2 as thermistor on pin temp1 M950 H2 C"122.out0" T2 ; create nozzle heater output on out1 and map it to sensor 1 M307 H2 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M143 H2 S280 ; set temperature limit for heater 1 to 280C ;; Fans ; Fan for the printed part left: M950 F0 C"121.out1" Q500 ; create fan 0 on pin 121.out1 and set its frequency M106 P0 S0 H-1 C"Part L" ; set fan 0 value. Thermostatic control is turned off ; Fan for the left hotend M950 F1 C"121.out2" Q500 ; create fan 1 on pin 121.out2 and set its frequency M106 P1 S1 H1 T45 C"Hotend L" ; set fan 1 value. Thermostatic control is turned on ; Fan for the printed part right: M950 F2 C"122.out1" Q500 ; create fan 2 on pin 122.out1 and set its frequency M106 P2 S0 H-1 C"Part R" ; set fan 2 value. Thermostatic control is turned on ; Fan for the right hotend M950 F3 C"122.out2" Q500 ; create fan 3 on pin 122.out2 and set its frequency M106 P3 S1 H1 T45 C"Hotend R" ; set fan 3 value. Thermostatic control is turned on P=No. S=Speed H=ThermostaticMode ;; Tools ; Tool 0 aka "the left wing" X M563 P0 S"L" D0 H1 F0 ; 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 ; Filament sensor ;M591 D0 P5 C"121.io0.in" R160:400 E3.0 S0 ; S0 = Disabled ; Tool 1 aka "the right wing" U M563 P1 S"R" D1 H2 F2 X3 ; define tool 1 P=No. S=Name D=Extrudor H=Heater F=Fan X=Mapping to X ;G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets ;G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C G10 P1 Y0 U0 Z0 S0 R0 ; Filament sensor ;M591 D0 P5 C"122.io0.in" R160:400 E3.0 S0 ; S0 = Disabled ; Miscellaneous ;M575 P1 S1 B57600 ; enable support for PanelDue M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss M501 ; load saved parameters from non-volatile memory T0 ; select first tool ;;;;;;;;;;;;;;;;; DISABLE protection for testing ;M564 S0 H0What did I do wrong?
Cheers, Chriss
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@Chriss said in Hotend cooling fan not starting:
M106 P3 S1 H1 T45 C"Hotend R" ; set fan 3 value. Thermostatic control is turned on P=No. S=Speed H=ThermostaticMode
i assume you want the second heater there H2 not H1
M308 S0 P"0.temp0" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp0
M308 S1 P"121.temp0" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin temp1
M308 S2 P"122.temp0" Y"thermistor" T100000 B4138 ; configure sensor 2 as thermistor on pin temp1your thermistor setting is incorrect. find the correct beta value in your thermistor documentation.
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@Veti said in Hotend cooling fan not starting:
i assume you want the second heater there H2 not H1
Thanks.... It is sooo helpfully when a other pair of eyes have a look at a problem. 
your thermistor setting is incorrect. find the correct beta value in your thermistor documentation.
Indeed, they are not correct yet. I just added something to get them working somehow. The thermistor settings seems still like witchcraft to me, time to read some documentation.
Cheers, Chriss
