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  1. #21
    The VFD itself doesn't cause interference until the spindle is running so would it need a ferrite on the spindle CY cable? Also I have already got all shielding running to a central bank of earth terminals on the sun rail but I thought we were only supposed to connect one end...are we meant to earth both ends?

    Sent from my SM-G920F using Tapatalk

  2. #22
    https://www.emcstandards.co.uk/cable...t-one-end-only is an interesting read.

    Ask 10 people and you'll get 12 different replies.

    I work in an industry where EM emissions and susceptibility are treated very seriously, and at relatively high power levels. Power systems (emissives) are typically, within these systems, shielded both ends.

    You'll find that as the VFD is placed under load it will present some of the heavier switching currents onto it's supply lines. Hence the ferrites. But, horses for courses.
    Last edited by Doddy; 15-09-2019 at 02:52 PM.

  3. #23
    ...but there's not enough popcorn in the world to cater for the ensuring arguments.

  4. #24
    i have the same setup anychance you have pictures of the actual connections
    on the vfd and the axbb-e because it is driving me nuts


    cheers

  5. #25
    finally got it going no relay needed

    removed jumper then

    A01 = VI
    ACM = 5V0
    DCM = 24V0
    FOR = pin 7 port 1
    REV = pin 8 port 1

    pid001 on vfd = 1
    pid002 on vfd = 1

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