Fan and lights turn off as i attach the thermistor???



  • Hi, i just installed the smart effector on my delta with a duet maestro and the above happened.
    I first attached the thermister through the 8pin connector and later straight to the thermistor. The temperature seems okay, but the hotend fan and the leds wont run.
    If i take out the thermistor they go on???

    Any idears?



  • This is the Config.g

    ; Configuration file for Duet WiFi (firmware version 1.21)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool on Sat Sep 29 2018 18:14:41 GMT+0200 (Midden-Europese zomertijd)

    ; General preferences
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves
    M555 P0 ; Set firmware compatibility to look like native output

    ;*** The homed height is deliberately set too high in the following - you will adjust it during calibration.
    M665 R250 L490 H990.00 B180 ;Set delta radius, diagonal rod length, printable radius and homed height
    M666 X0 Y0 Z0 A0.00 B0.00 ; Put your endstop adjustments here, or let auto calibration find them

    ; Network
    M550 PLambdaDeltaXXL ; Set machine name
    M552 S1 ; Enable network

    ;*** Access point is configured manually via M587
    M586 P0 S1 ; Enable HTTP
    M586 P1 S0 ; Disable FTP
    M586 P2 S0 ; Disable Telnet

    ;Adjust size
    M579 X1.007 Y1.002 Z1.000

    ; Drives
    M569 P0 S0 ; Drive 0 goes Backwards
    M569 P1 S0 ; Drive 1 goes Backwards
    M569 P2 S0 ; Drive 2 goes Backwards
    M569 P3 S1 ; Drive 3 goes forwards
    ;-----------------------------------------------------------------------------------
    ;16 microsteps
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping without interpolation
    M92 X160 Y160 Z160 E471.7 ; Set steps per mm
    ;------------------------------------------------------------------------------------------
    M566 X400 Y400 Z400 E800 ; Set maximum instantaneous speed changes (mm/min)
    M203 X15000 Y15000 Z15000 E5000 ; Set maximum speeds (mm/min)
    M201 X1000 Y1000 Z1000 E1000 ; Set accelerations (mm/s^2)
    M906 X1400 Y1400 Z1400 E1400 I40 ; Set motor currents (mA) and motor idle factor in per cent
    M84 S60 ; Set idle timeout

    ; Axis Limits
    M208 Z0 S1 ; Set minimum Z

    ; Endstops
    M574 X2 Y2 Z2 S0 ; Set active low endstops

    ; Z-Probe
    M558 P5 R0.4 H5 F1200 T6000 ; Set Z probe type to effector and the dive height + speeds
    G31 P600 X0 Y0 Z-0.15 ; Z1.200 Set Z probe trigger value, offset and trigger height
    M557 R210 S30 ; Define mesh grid

    ; Heaters
    M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
    M305 P0 T100000 B4138 R2200 ; Set thermistor + ADC parameters for heater 0
    M143 H0 S80 ; Set temperature limit for heater 0 to 80C
    M305 P1 T100000 B4138 R2200 ; Set thermistor + ADC parameters for heater 1
    M143 H1 S280 ; Set temperature limit for heater 1 to 280C

    ; Fans
    M106 P0 S0 I0 0 B2 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
    M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

    ; 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

    ; Automatic saving after power loss is not enabled

    ; Custom settings are not configured
    M501



  • Attched the fan to allways on and it all works!


  • administrators

    @mikewittt said in Fan and lights turn off as i attach the thermistor???:

    Hi, i just installed the smart effector on my delta with a duet maestro and the above happened.
    I first attached the thermister through the 8pin connector and later straight to the thermistor. The temperature seems okay, but the hotend fan and the leds wont run.
    If i take out the thermistor they go on???

    Any idears?

    You have configured Fan 1 to run thermostatically when the hot end temperature is 45C or above (see the M106 P1 command in config.g). So it wil be off below that temperature. When the thermistor is not connected, the firmware doesn't know what the hot end temperature is, so it turns the fan on as a precaution.


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