fans not responding.



  • when i heat up my extruder past 45C the cooling fan does not turn on.

    ; Fans
    M106 P0 S0.3 I0 F500 H1 T40 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P1 S0.5 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P2 S0.5 I0 F500 H1 T45 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

    please help. (Think my Config.g is wrong )



  • You've got H1 on all of the fans. So that means they would all be tied to heater 1.

    https://duet3d.dozuki.com/Wiki/GCode#Section_M106_Fan_On
    and
    https://duet3d.dozuki.com/Wiki/Connecting_and_configuring_fans

    Fan 0 is typically the part cooling fan, so you would want that to use H-1 to disabled thermostatic control.

    Fan 1 is recommended for the hotend fan because it will turn on automatically at power up incase the hotend is hot during a power cycle. In that case H1 might be correct if your hotend heater is defined as heater 1. Heater 0 is typically the bed heater.

    Fan 2 can be used as a case fan or whatever you want.

    So which fans do you have plugged in where?

    Can you post the rest of your config.g so we can see which heaters are defined where?



  • ; Configuration file for Duet WiFi (firmware version 1.20 or newer)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool on Thu Jul 12 2018 20:54:00 GMT-0500 (Central Daylight Time)

    ; General preferences
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves

    ;*** The homed height is deliberately set too high in the following - you will adjust it during calibration.

    ; After G32 auto-calibrate, copied from config-override.g
    ; Note: G31 Z (below) affects M665 H, and this is NOT yet calibrated.
    M665 L271.500 R134.638 H296.189 B105.0 X-0.477 Y-0.304 Z0.000
    M666 X-0.910 Y0.111 Z0.799 A0.00 B0.00

    ;Manually copied from Marlin config.h in Anycubic's github repository
    ;M665 R135.4 L271.5 B105 H300 ; Set delta radius, diagonal rod length, printable radius and homed height
    ;M666 X0 Y0 Z0 ; Put your endstop adjustments here, or let auto calibration find them

    ; Network
    M550 PAKL Plus ; 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

    ; Drives
    M569 P0 S1 ; Drive 0 goes forwards
    M569 P1 S1 ; Drive 1 goes forwards
    M569 P2 S1 ; Drive 2 goes forwards
    M569 P3 S1 ; Drive 3 goes forwards
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
    M92 X80 Y80 Z80 E96 ; Set steps per mm
    M566 X300 Y300 Z300 E300 ; Set maximum instantaneous speed changes (mm/min)
    M203 X12000 Y12000 Z12000 E12000 ; Set maximum speeds (mm/min)
    M201 X3000 Y3000 Z3000 E3000 ; 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 Z0 S1 ; Set minimum Z

    ; Endstops
    M574 X2 Y2 Z2 S1 ; Set active high endstops

    ; Z-Probe
    M558 P4 H5 F120 T6000 ; Set Z probe type to switch and the dive height + speeds
    G31 P1000 X0 Y0 Z27.42 ; Set Z probe trigger value, offset and trigger height
    M557 R105 S20 ; Define mesh grid

    ; Heaters
    M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M143 H0 S120 ; Set temperature limit for heater 0 to 120C
    M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1
    M143 H1 S280 ; Set temperature limit for heater 1 to 280C

    ; Fans
    M106 P0 S0.3 I0 F500 H1 T40 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P1 S0.5 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P2 S0.5 I0 F500 H1 T45 ; Set fan 2 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 power saving
    M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; Set voltage thresholds and actions to run on power loss

    ; Custom settings are not configured

    ; Miscellaneous
    M501 ; Load saved parameters from non-volatile memory
    T0 ; Select first tool



  • fan 0 is hotend, fan 1 is part cooling



  • @ohluckyirish right, so you could swap the fan at the connector to have fan 0 as the part cooling fan.

    Then you'd need

    Fans
    M106 P0 S0 I0 F500 H-1  ; Set fan 0 value, gcode control for part cooling fan
    M106 P1 S0.5 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on


  • I still dont get any movement out of the fans.



  • Does the fan slider in the DWC turn on the part cooling fan?



  • im new to the duet board ? please explain



  • Sure. DWC stands for duet web control. It's the web interface to control the duet.

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



  • no the slider doesnt turn the fan on.



  • So just to confirm you've switched the fan connections on the board and have made the configuration change I posted?

    You could test the fan by connecting it to the always on fan header.

    Also double check that you have the fan wires connected to the right pins. Positive and negative.



  • yes and neither fan is turning on when i have them in the always on connector



  • How are you powering the Duet right now, USB, or DC power supply?
    If PSU, what voltage, 12v or 24v?
    What voltage are the fans?
    Can you test the fans by powering them directly from a DC PSU?
    Do you have a known working fan to test with?



  • @ohluckyirish
    What voltage are you getting at always on sockets?

    If you have a Duet 2 there is a fan fuse, is it blown?



  • all my fans were working fine before i upgraded to the duet board.



  • Check your fan fuse.
    Check voltage at the fan fuse to see if you have PSU voltage. (one lead on the fuse top, one to ground on the PSU)

    Double check your polarity.



  • Which Duet are you using? What revision?
    What firmware version?
    Can you send M122 in the gcode console and post the response here?



  • == Diagnostics ===
    RepRapFirmware for Duet 2 WiFi/Ethernet version 2.02(RTOS) running on Duet WiFi 1.02 or later
    Board ID: 08DGM-9T6BU-FG3S4-6J1D8-3SD6J-1VR7F
    Used output buffers: 3 of 20 (9 max)
    === RTOS ===
    Static ram: 25524
    Dynamic ram: 98620 of which 0 recycled
    Exception stack ram used: 280
    Never used ram: 6648
    Tasks: NETWORK(ready,656) HEAT(blocked,1232) MAIN(running,3788) IDLE(ready,200)
    Owned mutexes:
    === Platform ===
    Last reset 00:00:19 ago, cause: power up
    Last software reset at 2019-02-12 20:13, reason: User, spinning module GCodes, available RAM 6648 bytes (slot 2)
    Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0441f000 BFAR 0xe000ed38 SP 0xffffffff Task 0x4e49414d
    Error status: 0
    Free file entries: 10
    SD card 0 detected, interface speed: 20.0MBytes/sec
    SD card longest block write time: 0.0ms, max retries 0
    MCU temperature: min 18.3, current 21.5, max 21.8
    Supply voltage: min 12.7, current 12.7, max 12.8, under voltage events: 0, over voltage events: 0, power good: yes
    Driver 0: standstill, SG min/max not available
    Driver 1: standstill, SG min/max not available
    Driver 2: standstill, SG min/max not available
    Driver 3: standstill, SG min/max not available
    Driver 4: standstill, SG min/max not available
    Date/time: 2019-02-13 17:55:58
    Cache data hit count 63519798
    Slowest loop: 6.96ms; fastest: 0.07ms
    I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0
    === Move ===
    Hiccups: 0, StepErrors: 0, LaErrors: 0, FreeDm: 240, MinFreeDm: 240, MaxWait: 0ms, Underruns: 0, 0
    Scheduled moves: 0, completed moves: 0
    Bed compensation in use: none
    Bed probe heights: 0.000 0.000 0.000 0.000 0.000
    === Heat ===
    Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
    Heater 1 is on, I-accum = 0.0
    === GCodes ===
    Segments left: 0
    Stack records: 1 allocated, 0 in use
    Movement lock held by null
    http is idle in state(s) 0
    telnet is idle in state(s) 0
    file is idle in state(s) 0
    serial is idle in state(s) 0
    aux is idle in state(s) 0
    daemon is idle in state(s) 0
    queue is idle in state(s) 0
    autopause is idle in state(s) 0
    Code queue is empty.
    === Network ===
    Slowest loop: 22.72ms; fastest: 0.00ms
    Responder states: HTTP(2) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
    HTTP sessions: 1 of 8

    • WiFi -
      Network state is running
      WiFi module is connected to access point
      Failed messages: pending 0, notready 0, noresp 0
      WiFi firmware version 1.22
      WiFi MAC address cc:50:e3:14:b7:80
      WiFi Vcc 3.34, reset reason Turned on by main processor
      WiFi flash size 4194304, free heap 26008
      WiFi IP address 192.168.1.43
      WiFi signal strength -58dBm, reconnections 0, sleep mode modem
      Socket states: 4 4 0 0 0 0 0 0


  • here is what i put as my fans

    ; Fans
    M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, gcode control for part cooling fan
    M106 P1 S0.5 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on



  • which position should the jumper be in ?


 

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