• Tags
  • Documentation
  • Order
  • Register
  • Login
Duet3D Logo Duet3D
  • Tags
  • Documentation
  • Order
  • Register
  • Login

Thermistor showing 2000

Scheduled Pinned Locked Moved Solved
Duet Hardware and wiring
3
15
482
Loading More Posts
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • undefined
    cdl1701yahoo.com
    last edited by 26 Jun 2020, 14:32

    Not sure if this is helpful or not but here are some pictures of measuring the resistance on both boards, one that works and the one that doesn't

    Working board:
    a7c7b0a6-a587-4c10-966c-ab2377f130c4-image.png

    Not working board:
    80cabac8-809e-4198-97f0-bb1e7c246a4b-image.png

    1 Reply Last reply Reply Quote 0
    • undefined
      cdl1701yahoo.com
      last edited by 26 Jun 2020, 16:58

      Small update
      I decided to erase the firmware on this board and get everything to exactly the same on this board as my other one.

      07b581b8-2c1f-4c10-a313-898abc50495a-image.png

      5ec94e0d-27f8-4c2e-92cf-a02856ad88ee-image.png

      Still getting this. Heater 1 and 3 are the only ones with thermistors plugged into them at the moment but still shows 2000. Heater 3 is coming from the Duex5 which is a brand new board.

      31292d7a-a47e-43c3-a352-6e4eeaa07ff4-image.png

      1 Reply Last reply Reply Quote 0
      • ?
        A Former User
        last edited by 26 Jun 2020, 17:04

        Looks like one of the older revisions, can you tell which one?

        And measure the resistance from the left thermistor pin to ground (in the same orientation as in your previous photos)

        1 Reply Last reply Reply Quote 0
        • undefined
          cdl1701yahoo.com
          last edited by cdl1701yahoo.com 26 Jun 2020, 17:16

          Like this? Sorry for the slightly blurry picture hard to hold the multi-meter and probes with one hand and take a picture with the other. The red probe is clipped to the left pin on T0 and the black probe is on the ground of the power in block.
          Board version is 1.01

          dd87cdcd-3c8a-4150-a168-ec638511ab78-image.png

          1 Reply Last reply Reply Quote 0
          • ?
            A Former User
            last edited by 26 Jun 2020, 17:20

            Don't need the picture, the value is enough, 10.4 ohms? no kilo or other prefixes?

            And the revision of the board? Should be part of the silkscreen near by the red probe. says something like pcb revision 1.nn(x)?

            1 Reply Last reply Reply Quote 0
            • undefined
              cdl1701yahoo.com
              last edited by 26 Jun 2020, 17:23

              Oh sorry didn't notice that it cut the bottom of the meter off showing the setting. It was 10.4 kohm
              Board version is 1.01

              ? 1 Reply Last reply 26 Jun 2020, 17:27 Reply Quote 0
              • ?
                A Former User @cdl1701yahoo.com
                last edited by 26 Jun 2020, 17:27

                @cdl1701yahoo-com said in Thermistor showing 2000:

                It was 10.4 kohm

                oh, thats your problem i think, it should be close to 0.

                ref https://duet3d.dozuki.com/Wiki/Connector_and_spare_part_numbers#Section_VSSA_fuse

                undefined 1 Reply Last reply 26 Jun 2020, 19:05 Reply Quote 1
                • undefined
                  cdl1701yahoo.com @A Former User
                  last edited by 26 Jun 2020, 19:05

                  @bearer Oh you know what.. you just sparked a memory from about 3 years ago. I had to replace the F1 fuse on this board before because of this issue. I checked it with my multi-meter and sure enough it is blown. I bought 5 of those last time... now I wonder where I put those.. haha

                  1 Reply Last reply Reply Quote 0
                  • ?
                    A Former User
                    last edited by 26 Jun 2020, 19:08

                    tape the bag to board when you find them?

                    1 Reply Last reply Reply Quote 0
                    • undefined
                      cdl1701yahoo.com
                      last edited by 26 Jun 2020, 19:11

                      Holy crap I found them.. And my wife thinks I keep too much junk from my 3D printer builds.. haha

                      1 Reply Last reply Reply Quote 0
                      • undefined
                        cdl1701yahoo.com
                        last edited by 26 Jun 2020, 19:40

                        Success!!

                        aa259f6d-5ed6-4d5d-b6ee-638ba83540b0-image.png

                        No heaters installed for Heater 2 or Bed yet so those are good.

                        1 Reply Last reply Reply Quote 0
                        • ?
                          A Former User
                          last edited by 26 Jun 2020, 19:42

                          Awesome!

                          (btw if your wife really thought you kept too much junk I don't think you would have found them;)

                          1 Reply Last reply Reply Quote 1
                          13 out of 15
                          • First post
                            13/15
                            Last post
                          Unless otherwise noted, all forum content is licensed under CC-BY-SA