Duet3D Logo

    Duet3D

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

    Duet wifi Spindle - Mach 3 Speed Controler

    CNC
    2
    3
    88
    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.
    • J.Helps
      J.Helps last edited by

      Hi guys,

      I'm building a CNC machine with a 400W Spindle (48V) that comes with a Mach 3 DC Speed controler that receives a pwm signal with a level of 3.5 - 12 V VPP. How can I setup this spindle with this controller?
      I was thinking about using a pwm fan output from Duet but the output is 0-5V. Since I'm using a 24V power supply for the duet, can i use the fan output as VIN and add a step-down (24V to 12V) to connect to the spindle?

      Mach3 DC motor speed controller datasheet:
      https://www.mantech.co.za/Datasheets/Products/HQ-LB60-12A-V1-180191_SGT.pdf

      dc42 1 Reply Last reply Reply Quote 0
      • dc42
        dc42 administrators @J.Helps last edited by

        @j-helps unfortunately the datasheet doesn't say whether the PWM input is isolated from the rest of the circuit. Please provide high resolution photos of both sides of the board, and report any markings you can read on component U5 next to the PWM connector.

        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

        J.Helps 1 Reply Last reply Reply Quote 0
        • J.Helps
          J.Helps @dc42 last edited by

          @dc42 7C34FC9E-1A9D-48E9-A3A1-AE4046775563.jpeg 401B3BEA-00FF-4E48-BB3A-B4832FA7AE6C.jpeg E47382F1-E0DA-49B3-983E-A65DCAE58FB7.jpeg

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