Error: Heater 0 fault: temperature rising



  • Hello all, I just upgraded my duet 2 maestro from firmware 2.0 to 3.1. I used the need reprap on-line configuratior. I finally got everything working except the hot bed, it turns on and I get this error "Error: Heater 0 fault: temperature rising much more slowly than the expected 1.7c/sec". Everything was working great with firmware 2.0, but now I just get this fault. I am not sure what is going on, my hot end works great. Here is the output from my config file.

    ; Configuration file for Duet Maestro (firmware version 3)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.1 on Thu Jun 04 2020 09:32:59 GMT-0500 (Central Daylight Time)

    ; General preferences
    G90 ; send absolute coordinates...
    M83 ; ...but relative extruder moves
    M550 P"My Printer" ; set printer name

    ; Network
    M552 P0.0.0.0 S1 ; enable network and acquire dynamic address via DHCP
    M586 P0 S1 ; enable HTTP
    M586 P1 S0 ; disable FTP
    M586 P2 S0 ; disable Telnet

    ; Drives
    M569 P0 S0 ; physical drive 0 goes backwards
    M569 P0 V30 ; Stealthchop2 till about 150 mm/sec
    M569 P1 S1 ; physical drive 2 goes forwards
    M569 P1 V30 ; Stealthchop2 till about 150 mm/sec
    M569 P2 S1 ; physical drive 2 goes forwards
    M569 P2 V30 ; Stealthchop2 till about 150 mm/sec
    M569 P3 S1 ; physical drive 3 goes forwards
    M569 P3 V30 ; Stealthchop2 till about 150 mm/sec
    M584 X0 Y1 Z2 E3 ; set drive mapping
    M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
    M92 X80.00 Y80.00 Z400.00 E90.00 ; set steps per mm
    M566 X900.00 Y900.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
    M203 X300000.00 Y300000.00 Z6000.00 E216000.00 ; set maximum speeds (mm/min)
    M201 X800.00 Y800.00 Z15.00 E1000.00 ; set accelerations (mm/s^2)
    M906 X1000 Y1000 Z1000 E1000 I30 ; set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout

    ; Axis Limits
    M208 X0 Y0 Z0 S1 ; set axis minima
    M208 X200 Y200 Z200 S0 ; set axis maxima

    ; Endstops
    M574 X2 S1 P"!xstop" ; configure active-high endstop for high end on X via pin !xstop
    M574 Y1 S1 P"!ystop" ; configure active-high endstop for low end on Y via pin ystop
    M574 Z1 S2 ; configure Z-probe endstop for low end on Z

    ; Z-Probe
    M950 S0 C"^zprobe.mod" ; create servo pin 0 for BLTouch
    M558 P9 C"zprobe.in+zprobe.mod" 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 X15:200 Y15:195 S20 ; define mesh grid

    ; Heaters
    M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; 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 B4138 ; 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

    ; Fans
    M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
    M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
    M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
    M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on

    ; Tools
    M563 P0 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

    ; Custom settings are not defined

    ; Miscellaneous
    M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
    T0 ; select first tool


  • Moderator

    Have you tried PID tuning the bed heater yet?



  • @Phaedrux said in Error: Heater 0 fault: temperature rising:

    PID tuning

    Thanks for the input, everything is working now.


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