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  1. 21-05-2017 #12
    isolt's Avatar
    Lives in here, New Zealand.
    isolt
    Last Activity: 07-03-2018 Has been a member for 7-8 years. Has a total post count of 3.
    Thanks for the fast reply Chaz!
    I didn't realise RS485 was an option. Are you running a separate cable from your PC for this?
    I'd like to just have a single cable if possible, but I'll look into it more if I can't get this working.

    I've set it up as shown in the manual with a potentiometer making a voltage divider. It works well which means I've got my VFD set up correctly to accept a -10V input.
    Click image for larger version.  Name: HLPC wiring.JPG  Views: 649  Size: 73.3 KB  ID: 21741

    I don't understand how to get a 10V signal from the BOB though.
    Click image for larger version.  Name: BOB.JPG  Views: 1486  Size: 83.3 KB  ID: 21742
    I'm not measuring any voltage across the two "0-10V Spindle Speed Output Connector Inverter" pins.
    Do I need to feed it 10V from the VFD? Is the PWM port involved some how?

    Any help would be appreciated.

    Cheers
    Attached Thumbnails Attached Thumbnails Click image for larger version.  Name: HLP Part Number.jpg  Views: 419  Size: 218.7 KB  ID: 21744   Click image for larger version.  Name: HLPC pins.JPG  Views: 426  Size: 93.2 KB  ID: 21743  
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