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tammy71Aug 7, 2025
Why won't my Danfoss VLT FC 300 DC Drives motor run?
- TTiffany CooperAug 7, 2025
The motor might not run for several reasons. First, ensure the unit is powered up and shows no warnings or alarms. Check if terminal 27 is logic '1'. Make sure the [Off] key hasn't been pressed; if it has, press the [Auto On] or [Hand On] key. Also, verify that a start command is present at terminal 18. Incorrect control logic or an incorrectly programmed adjustable frequency drive may also be the cause.
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