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  1. 05-12-2017 #16
    john swift's Avatar
    Lives in merseyside, United Kingdom.
    john swift
    Last Activity: 18-01-2021 Has been a member for 9-10 years. Has a total post count of 257. Received thanks 53 times, giving thanks to others 0 times.
    looking at diagram in post 42 I have noticed two issues-

    I would expect wiring in series a 12V fan & 12V pump across a 24V supply will damage the fan !
    ( pump will look like a short circuit so most of the 24V will be across the fan )

    connecting a diode (FR607 ?) across each stepper driver supply fuse
    will provide a path for the back EMF from the stepper motor
    when a fuse blows

    see revised diagram
    Click image for larger version.  Name: revised control_layout_24V_v6.JPG  Views: 1011  Size: 160.5 KB  ID: 23315

    John
    Last edited by john swift; 05-12-2017 at 02:52 PM.
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