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    Duet Ethernet with 24v fan

    Scheduled Pinned Locked Moved
    Duet Hardware and wiring
    fan0 cooling duet3d ethernet
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    • dc42undefined
      dc42 administrators @Bewaren
      last edited by

      @bewaren said in Duet Ethernet with 24v fan:

      @dc42 I am unsure, what pins should I have the jumper on?, its currently on the two right hand pins if looking at it from: https://d17kynu4zpq5hy.cloudfront.net/igi/duet3d/YN2oahyGpcPNN1Pw.huge | assuming that the jumper in question is the 3 pin one central to the 5 fan pins.

      That's correct, it's the right hand position if you are looking at the Duet with the stepper motor outputs at the top.

      To state the obvious: are you sure that the Duet is receiving 24V? If you send M122 to the Duet, the diagnostic report will include the VIN voltage.

      Duet WiFi hardware designer and firmware engineer
      Please do not ask me for Duet support via PM or email, use the forum
      http://www.escher3d.com, https://miscsolutions.wordpress.com

      Bewarenundefined 1 Reply Last reply Reply Quote 0
      • Bewarenundefined
        Bewaren @dc42
        last edited by

        @dc42 M122
        === Diagnostics ===
        RepRapFirmware for Duet 2 WiFi/Ethernet version 2.03 running on Duet Ethernet 1.02 or later
        Board ID: 08DGM-917DA-G4MSD-6JKDA-3SN6Q-TST39
        Used output buffers: 3 of 24 (6 max)
        === RTOS ===
        Static ram: 25680
        Dynamic ram: 93280 of which 380 recycled
        Exception stack ram used: 260
        Never used ram: 11472
        Tasks: NETWORK(ready,652) HEAT(blocked,1236) MAIN(running,3780) IDLE(ready,160)
        Owned mutexes:
        === Platform ===
        Last reset 00:00:19 ago, cause: power up
        Last software reset at 2019-07-29 14:33, reason: User, spinning module GCodes, available RAM 11472 bytes (slot 3)
        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 -64.2, current -57.9, max -57.9
        Supply voltage: min 16.7, current 16.9, max 17.0, 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: 2019-07-29 17:01:52
        Cache data hit count 44910390
        Slowest loop: 1.10ms; fastest: 0.07ms
        I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
        === Move ===
        Hiccups: 0, FreeDm: 169, MinFreeDm: 169, MaxWait: 0ms
        Bed compensation in use: none, comp offset 0.000
        === DDARing ===
        Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
        === Heat ===
        Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
        === GCodes ===
        Segments left: 0
        Stack records: 2 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 assembling a command 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: 4.33ms; fastest: 0.02ms
        Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
        HTTP sessions: 1 of 8
        Interface state 5, link 100Mbps full duplex

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        • Bewarenundefined
          Bewaren
          last edited by

          From what I can tell its getting 17v?, I may be incorrect though

          dc42undefined 1 Reply Last reply Reply Quote 0
          • dc42undefined
            dc42 administrators @Bewaren
            last edited by

            @bewaren said in Duet Ethernet with 24v fan:

            From what I can tell its getting 17v?, I may be incorrect though

            Is your mains voltage 120V? If so, check whether your PSU has an input voltage selector switch that is set to 230V.

            Duet WiFi hardware designer and firmware engineer
            Please do not ask me for Duet support via PM or email, use the forum
            http://www.escher3d.com, https://miscsolutions.wordpress.com

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            • Bewarenundefined
              Bewaren
              last edited by

              The PSU is set to 220v atm. Could it be that the PSU is faulty or have I maybe bought a PSU that wont work with this board?, this is what I am using.

              https://www.amazon.co.uk/gp/product/B071W121H7/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1

              dc42undefined 1 Reply Last reply Reply Quote 0
              • dc42undefined
                dc42 administrators @Bewaren
                last edited by

                @bewaren said in Duet Ethernet with 24v fan:

                The PSU is set to 220v atm. Could it be that the PSU is faulty or have I maybe bought a PSU that wont work with this board?, this is what I am using.

                https://www.amazon.co.uk/gp/product/B071W121H7/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1

                That PSU looks OK unless you are using a high powered bed heater.

                What is your local mains voltage? Your profile doesn't give your location.

                If you have a multimeter, use it to measure the voltage across the VIN terminals.

                Duet WiFi hardware designer and firmware engineer
                Please do not ask me for Duet support via PM or email, use the forum
                http://www.escher3d.com, https://miscsolutions.wordpress.com

                Bewarenundefined 1 Reply Last reply Reply Quote 0
                • Bewarenundefined
                  Bewaren @dc42
                  last edited by

                  @dc42 UK, so 230v, bed heater isn't high powered, just turned the printer back on and it seems the PSU has bust, pop and on inspection one of the caps inside has gone, ordering a new one today so will test the VIN terminals tomorrow, but potentially the PSU has been the cause of the issue all along?

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                  • Phaedruxundefined
                    Phaedrux Moderator
                    last edited by

                    That would explain the over volt on the 12v fans and not working 24v fans

                    Z-Bot CoreXY Build | Thingiverse Profile

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                    • Bewarenundefined
                      Bewaren
                      last edited by

                      New PSU and still no luck with getting the 24v cooling fan to work, its wired too PWM fan0, I am really unsure as to what the issue could be at this point, any ideas would be great @dc42 @Phaedrux

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                      • Bewarenundefined
                        Bewaren
                        last edited by

                        I am 100% sure I am receiving 24v on the board from my PSU as I have checked, I am also outputting 24v on the fan ports, very confused why its not powering the fan.

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                        • Phaedruxundefined
                          Phaedrux Moderator
                          last edited by

                          Does the fan work if you connect it directly to 24v power?

                          What is you m106 command to control the fan?

                          Which port are you using?

                          Is the fan fuse intact?

                          Z-Bot CoreXY Build | Thingiverse Profile

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                          • Bewarenundefined
                            Bewaren
                            last edited by

                            Solution!, I had checked literally everything and replaced everything, turns out it was the wire, I set my multimeter to continuity mode and found that there was an internal break in my + wire connecting to the fan, looked intact and was the only other part I hadn't replaced, now that thats gone and a new wire is in place I am up and running with it, so it seems anyway!

                            Thanks for the support guys!

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