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    Attempt to move motors when VIN is not in range DWC shows 0.5V

    Scheduled Pinned Locked Moved
    Duet Hardware and wiring
    vin not in range
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    • Magnusjenundefined
      Magnusjen @Phaedrux
      last edited by

      @phaedrux ah! Right will look after work when i get WiFi connection again.

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      • Magnusjenundefined
        Magnusjen
        last edited by

        @veti the data is useless... I pulled it while it was connected with USB. I will pull better data in about 8 hours.

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        • Magnusjenundefined
          Magnusjen @Phaedrux
          last edited by

          @phaedrux
          So! I am home from work now, and I plugged in the DUET to my Ender 3 power supply which supplies 24 V (I just checked with my Multimeter and it confirms that part.

          The DWC interface says I have 0.5V and the M122 prompt says the same.. For shits and giggles I looked at the fan pins and they also say 24V. I have had issues with my hot end fan not working when I plug it into the board so that is my next issue after getting the board to function again.

          3:49:47 PMM122
          === Diagnostics ===
          RepRapFirmware for Duet 2 WiFi/Ethernet version 2.02(RTOS) running on Duet WiFi 1.02 or later
          Board ID: 08DGM-917DA-G4MSD-6J1F8-3SD6T-KSU7B
          Used output buffers: 3 of 20 (15 max)
          === RTOS ===
          Static ram: 25524
          Dynamic ram: 98568 of which 0 recycled
          Exception stack ram used: 288
          Never used ram: 6692
          Tasks: NETWORK(ready,648) HEAT(blocked,1232) MAIN(running,3868) IDLE(ready,200)
          Owned mutexes: WiFi(NETWORK)
          === Platform ===
          Last reset 00:01:22 ago, cause: power up
          Last software reset at 2019-03-12 22:17, reason: Unknown, spinning module Platform, available RAM 6320 bytes (slot 2)
          Software reset code 0x40b0 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0042380f BFAR 0xe000ed38 SP 0x20001eac Task 0x5754454e
          Stack: 004450eb 004450ea 41000000 f8000000 4016afff 00000000 00000000 3e178897 3e1cd04f 41880000 3e3a3335 3e638e3a 423d19d1 00000000 476e5600 37d33333 3c113333 60000000 3fe22666 60000010 00449abb 00000001 0040607f
          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 36.7, current 37.6, max 37.6
          Supply voltage: min 0.4, current 0.5, max 0.5, under voltage events: 0, over voltage events: 0, power good: no
          Driver 0: ok, SG min/max not available
          Driver 1: ok, SG min/max not available
          Driver 2: ok, SG min/max not available
          Driver 3: ok, SG min/max not available
          Driver 4: ok, SG min/max not available
          Date/time: 2019-03-13 15:49:46
          Cache data hit count 297248498
          Slowest loop: 1.80ms; fastest: 0.06ms
          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: 2, completed moves: 2
          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
          === 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: 175.35ms; fastest: 0.08ms
          Responder states: HTTP(0) 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 1.21
            WiFi MAC address cc:50:e3:0d:27:75
            WiFi Vcc 3.42, reset reason Turned on by main processor
            WiFi flash size 4194304, free heap 15056
            WiFi IP address 10.44.0.21
            WiFi signal strength -50dBm, reconnections 0, sleep mode modem
            Socket states: 0 0 0 0 0 0 0 0
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          • Vetiundefined
            Veti
            last edited by

            check the fuses if it is blown

            Magnusjenundefined 1 Reply Last reply Reply Quote 0
            • Magnusjenundefined
              Magnusjen @Veti
              last edited by

              @veti I just checked the fuses with my multimeter, they all read 24 V

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              • Vetiundefined
                Veti
                last edited by

                you measure a fuse by measuring the resistance across it while its out of the socket.

                Magnusjenundefined 2 Replies Last reply Reply Quote 0
                • Magnusjenundefined
                  Magnusjen @Veti
                  last edited by Magnusjen

                  @veti Huh? But then there is no current to the fuse?

                  Edit: doh... ignore this

                  Danalundefined 1 Reply Last reply Reply Quote 0
                  • Magnusjenundefined
                    Magnusjen @Veti
                    last edited by

                    @veti Sorry mate, my bad... I took them out and checked them one by one and they are all fine.

                    Danalundefined 1 Reply Last reply Reply Quote 0
                    • Danalundefined
                      Danal @Magnusjen
                      last edited by

                      @magnusjen said in Attempt to move motors when VIN is not in range:

                      @veti Huh? But then there is no current to the fuse?

                      Correct. Measure resistance, not voltage or current. Should be zero for a good fuse.

                      In fact, measuring 24V across a fuse that is IN CIRCUIT is a strong hint that the fuse is "blown". Meaning open. Meaning no current able to pass through. If you think about a good fuse IN CIRCUIT, it should read very, very, very close to zero V 'across' the fuse, because a good fuse is not 'blocking' anything, i.e. not blown. So the 'voltage drop' across the fuse is (almost) nothing.

                      Delta / Kossel printer fanatic

                      Magnusjenundefined 1 Reply Last reply Reply Quote 0
                      • Danalundefined
                        Danal @Magnusjen
                        last edited by Danal

                        @magnusjen said in Attempt to move motors when VIN is not in range:

                        @veti Sorry mate, my bad... I took them out and checked them one by one and they are all fine.

                        "Good" as in "Zero Ohms"? (When out of circuit)

                        Delta / Kossel printer fanatic

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                        • Magnusjenundefined
                          Magnusjen @Danal
                          last edited by

                          @danal Was to slow, I took them out and looked at resistance across and they all hit zero

                          Danalundefined 1 Reply Last reply Reply Quote 0
                          • Danalundefined
                            Danal @Magnusjen
                            last edited by

                            @magnusjen said in Attempt to move motors when VIN is not in range:

                            @danal Was to slow, I took them out and looked at resistance across and they all hit zero

                            Perfect... then they are OK.

                            Hmmm.... DWC still shows just 5V?

                            Delta / Kossel printer fanatic

                            Magnusjenundefined 1 Reply Last reply Reply Quote 0
                            • Magnusjenundefined
                              Magnusjen @Danal
                              last edited by

                              @danal Yes still shows 5V, I even pulled out the fans just for ease of work with the board.

                              Danalundefined 1 Reply Last reply Reply Quote 0
                              • Danalundefined
                                Danal @Magnusjen
                                last edited by

                                @magnusjen said in Attempt to move motors when VIN is not in range:

                                @danal Yes still shows 5V, I even pulled out the fans just for ease of work with the board.

                                With USB UNPLUGGED, and 24V reading across the pins on the green connector that is circled, which lights are on?

                                0_1552492303271_dfc8a2f0-2797-4e7b-8232-174853ffa40d-image.png

                                Delta / Kossel printer fanatic

                                Magnusjenundefined 1 Reply Last reply Reply Quote 0
                                • Magnusjenundefined
                                  Magnusjen @Danal
                                  last edited by

                                  @danal
                                  Power in is in the correct spot Check
                                  Power reading across reads as 24V check
                                  USB not plugged in Check
                                  Wifi Blue light check
                                  3.3V green light check
                                  5V red light check
                                  VIN blue light check
                                  Z,Y, X stop red lights check

                                  1 Reply Last reply Reply Quote 0
                                  • Danalundefined
                                    Danal
                                    last edited by

                                    Interesting....

                                    Just as a final check of inputs and fuses, take a VOLTAGE reading across the two red circles (heater E0 VIN and ground on the big green VIN itself), with USB unplugged and 24V in on.

                                    Should read 24V. Probably will. Still, with that confirmation, we can move on.

                                    0_1552492985411_Check VIN.PNG

                                    Delta / Kossel printer fanatic

                                    Magnusjenundefined 1 Reply Last reply Reply Quote 0
                                    • Magnusjenundefined
                                      Magnusjen @Danal
                                      last edited by

                                      @danal Reads 24V indeed mate 😕

                                      I really appreciates the help! It happend quite sudden, I had the motors working and homed and when I had been working on wiring the fans (with the board turned off) it started with that error.

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                                      • Danalundefined
                                        Danal
                                        last edited by Danal

                                        EDIT: My memory failed me. I've removed the illustration so as not to lead anyone astray.

                                        The three pin connector nearest the big green VIN power in screw terminals should be blank.

                                        Delta / Kossel printer fanatic

                                        Magnusjenundefined 1 Reply Last reply Reply Quote 1
                                        • Magnusjenundefined
                                          Magnusjen @Danal
                                          last edited by

                                          @danal jumper??? There never was a jumper there on my board.

                                          Danalundefined 1 Reply Last reply Reply Quote 0
                                          • Danalundefined
                                            Danal @Magnusjen
                                            last edited by

                                            @magnusjen said in Attempt to move motors when VIN is not in range:

                                            @danal jumper??? There never was a jumper there on my board.

                                            Yeah, just realized, I was thinking of a different jumper. They are correct the way you describe, empty.

                                            Delta / Kossel printer fanatic

                                            Magnusjenundefined 1 Reply Last reply Reply Quote 0
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