Sustainability of under powered VFD on Initial motor starting

[Neil WyattModerator @neilwyatt]

Posted by Mark Rand on 09/10/2018 23:10:47:

I also have an 'ancient' IMO Jaguar cub that I got from Sir John. This, IIRC, did have a restriction on switching between the VFD and the load. I know these have been fragile in the past, but on the Myford, it doesn't need downstream switching. It's also 17 years old.

Mark, the Jaguar Cubs are probably the commonest units in use by hobbyists these day, along with other, very similar, entry level units.

Most of these users really struggle with the huge manual and are unlikely to find the warning against load side switching.

Your units might be fine, but please don't encourage hobbyist to use downstream switching. It's only fair to err on the side of caution in these circumstances.

Neil

[Mark RandParticipant @markrand96270]

Detailed post deleted to avoid further disagreements.

Edited By Mark Rand on 10/10/2018 22:51:03

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