Duet3D Logo

    Duet3D

    • Register
    • Login
    • Search
    • Categories
    • Tags
    • Documentation
    • Order

    Smart-effector and PT100

    Smart effector for delta printers
    2
    11
    1824
    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.
    • bulka
      bulka last edited by

      HI,

      I have a smart-effector and I'm trying to use a PT100 with a daughter board.

      I connected the PT100 to the smart-effector ( label TEMP 2-pin black Microfit 3) and connected on smart-effector ( second and third pin) to the daughter board ( RTD1 - pin 2 and 3 ).

      is that correct?
      I checked many times and for me is ok but I have this error :

      Error: Temperature reading fault on heater 1: sensor hardware error

      0_1524240391609_heater.JPG

      this is the firmware:
      RepRapFirmware for Duet 2 WiFi/Ethernet Version 1.21 dated 2018-03-21

      I tried to change PT100 ( i had 2 ) and the result was the same.

      Can anyone hel me pls?

      Giulio

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

        As you are using a 2 wire PT100 connection, have you fitted the 2 jumpers to the daughter board?

        Have you configured it correctly in the M305 P1 command?

        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

        1 Reply Last reply Reply Quote 0
        • bulka
          bulka last edited by

          0_1524244062739_db.jpg

          I left the 2 jumper but never user M305 P1 command.

          1 Reply Last reply Reply Quote 0
          • bulka
            bulka last edited by

            this is the result of command:

            Heater 1 uses PT100 (MAX31865) sensor channel 201, 2/4 wires, reject 50Hz, reference resistor 400 ohms

            1 Reply Last reply Reply Quote 0
            • bulka
              bulka last edited by

              in config.g file I changed the commant do :

              M305 P1 X200

              but same result

              1 Reply Last reply Reply Quote 0
              • bulka
                bulka last edited by

                0_1524248997359_heater2.JPG

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

                  Was your PT100 board supplied with a 100 ohm resistor? If so, connect it between pins 2 and 3 of the daughter board terminal block in place of the wires to the effector. It should give you a reading of 0C.

                  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

                  1 Reply Last reply Reply Quote 0
                  • bulka
                    bulka last edited by

                    yes, was supplied.

                    I connected to the same pins used ( 2 and 3 ) and this is the result:

                    0_1524302583838_heater3.JPG

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

                      1C is close enough to 0C because the resistor we supply has a tolerance of 1%. So either there is a break in the wiring somewhere, or the PT100 itself is faulty. If you have a multimeter, I suggest you measure the resistance of the PT100 and work towards the Duet from there. At room temperature it should be a little over 100 ohms.

                      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

                      1 Reply Last reply Reply Quote 2
                      • bulka
                        bulka last edited by

                        I'm very lucky ..... I measured the resistance of PT100...and no value... (I used the same for the resistance supplied that is 100.8 ohms)

                        Great...never used and faulty....I'll ask to e3d a warranty replacements if possible...

                        1 Reply Last reply Reply Quote 0
                        • bulka
                          bulka last edited by

                          I measured the other PT100 and the resistance was around 100 ohms.

                          Oh yes ! Works!

                          Now I changed with this one and it works! ...

                          0_1524317464683_heater13.JPG

                          Thx for the support!! Really!!

                          1 Reply Last reply Reply Quote 0
                          • First post
                            Last post
                          Unless otherwise noted, all forum content is licensed under CC-BY-SA