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    UPS 24v on SKR PRO RRF 3

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    • sankafola
      sankafola last edited by

      Hello all i wonder if i can get some help here , i have the following :
      Anycubic Predator
      SKR PRO ver 1.2
      Smart Effector ver 2
      Magballs
      RRF 3

      Board: STM32F4 SBC (STMSBC)
      DSF Version: 3.2.0-beta1+1
      Firmware: RepRapFirmware for STM32F4 based Boards 3.2-beta1_2 (2020-09-15b1)

      Am trying to add Resume by using the Bigtree UPS 24v , which have 2 wires to the PS 24v and another plug for a 3 pin connector , anyone can help how to configure it in the RRF config files and where to connect it to which connector on the SKR PRO

      thanks in advance

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      • A Former User
        A Former User last edited by

        AFAIk RRF3 doesn't yet have support for a power loss input, but you have to set it up as a trigger on a available pin and have the trigger macro in turn execute your pause.g (or replicate its function in the trigger macro)

        See https://duet3d.dozuki.com/Wiki/Gcode#Section_M581_Configure_external_trigger

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        • Stephen6309
          Stephen6309 last edited by

          https://duet3d.dozuki.com/Wiki/Gcode#Section_M911_Configure_auto_save_on_loss_of_power

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          • sankafola
            sankafola last edited by sankafola

            @bearer so i put the 3 pin one one empty one ok then i put the M581 in the config.g as

            M581 P"e0stop+e1stop" T2 C1

            Trigger 2 is a pause

            now my questions how to save the last position of the hotend and how to resume ? and how to make the 3 pin monitor the power ?

            A Former User 1 Reply Last reply Reply Quote 0
            • A Former User
              A Former User @sankafola last edited by

              @sankafola said in UPS 24v on SKR PRO RRF 3:

              now my questions how to save the last position of the hotend and how to resume ?

              i thought pause handles the saving, according to https://duet3d.dozuki.com/Wiki/Gcode#Section_M916_Resume_print_after_power_failure

              and how to make the 3 pin monitor the power ?

              presumably one of the three pins go high or low when the power input fails, but i'm not familiar with the module

              sankafola 2 Replies Last reply Reply Quote 0
              • sankafola
                sankafola last edited by

                so i need also to use M911 in the config.g but let me ask you this if the pause saves the last position of the print i need to make a marco to get this info and resume how ??

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                • sankafola
                  sankafola @Guest last edited by

                  @bearer here is the one am talking about https://www.biqu.equipment/collections/expansion-board/products/btt-ups-24v-v1-0-resume-printing-while-power-off-module

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                  • sankafola
                    sankafola @Guest last edited by

                    @bearer so if i do this M581 P"!e2stop" T2 C0 means when the inverted pin goes from 5 v to 0 do a pause is that right ?

                    but if the power is cut and these capacitor keep it alive for 1 more min and it paused how it will resume what do i need to do to get it to resume ?

                    A Former User 1 Reply Last reply Reply Quote 0
                    • A Former User
                      A Former User @sankafola last edited by A Former User

                      @sankafola I'm interested too because I have a 12VDC power supply and to be able to use the resume after power outage I thought to buy this:

                      https://www.aliexpress.com/item/32967985788.html?spm=a2g0o.productlist.0.0.2d9255cbWfDPoe&algo_pvid=cdd5d04b-1af9-4065-9037-be32ec8befcc&algo_expid=cdd5d04b-1af9-4065-9037-be32ec8befcc-8&btsid=0b0a555b16040680685654891ea7fc&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

                      So it would be possible to connect the otuput port of this "UPS" to a free pin of the DUET 2 Wifi and trigger a pause?

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