Heater problem



  • Hello!

    Second thread, and more issues. Duet Wifi in a Delta.
    I cannot get my hotend to heat up, it is actually worse that that, I do not seem to get any voltage on my E0/E1 outputs.

    I disconnected my cables, and attached my oscilloscope to the E0 (and for that matter E1) output. I turned the heater on but i still get no voltage on the E0 / E1

    Is there any setting i may have missed. Seeming i messed up my endstops earlier, it is far from unlikely.

    if i heat my hotend with my hand, I can see a slow rise in the readout for Tool0 which is on Heater 1.

    If i measure resistanse over my heater cable (all the way from the end that was connected to myu Duet i get 5 ohms with the 6-pin connector of the Smart Effector connected, and "infinite" if i unplug the 6-pin connector. So, that seem to be reasonable.

    The heater indicator led does turn on on the Duet Wifi, but not on the smart effector if i have it connected.

    If i disconnect the heater cables from the Duet Wifi and power it from my lab supply it heats up nicely, and the amber led on the smart effector turns on.

    [c]; Configuration file for Duet WiFi (firmware version 1.20 or newer)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool on Sat Mar 10 2018 00:14:59 GMT+0100 (W. Europe Standard Time)

    ; General preferences
    G90 ; Send absolute coordinates…
    M83 ; ...but relative extruder moves
    M665 R225 L360.2 B125 H430 ; 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 PFull Metal Delta ; 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 E663 ; Set steps per mm
    M566 X1200 Y1200 Z1200 E1200 ; Set maximum instantaneous speed changes (mm/min)
    M203 X18000 Y18000 Z18000 E1200 ; Set maximum speeds (mm/min)
    M201 X1000 Y1000 Z1000 E1000 ; Set accelerations (mm/s^2)
    M906 X1000 Y1000 Z1000 E800 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 P0 H5 F120 T6000 ; Disable Z probe but set dive height, probe speed and travel speed
    M557 R125 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 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
    M106 P2 S1 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 saving after power loss is not enabled

    ; Custom settings are not configured[/c]



  • Let me answer my own question and give you a laugh…. This apparently happens when you do not notice your PSU being turned off and you still have USB power.

    Yeah.. I did do that.


 

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