part one

[@phooesnax]

Nicely done.

[@jackEnglishmachines]

Thanks!

[@dougsaunders8109]

Just curious, will there be an enough air flow given the fan on the bottom of the VDF as it looks as if it will be behind the door? Very neat install BTW

[@jackEnglishmachines]

not a problem at all, if I was operating the frequency, drive for speed control I might be concerned, but it generally will be just maintaining the same frequency so virtually no heat

[@dougsaunders8109]

I see. Fans and airflow are not something I have massive experience of in this setting. Learning by your experiences

[@devmeistersuperprecision4155]

Don’t forget Jack has an aluminum plate bolted to a massive cast iron body. So some heat should be pulled away from the VFD. As Lao remember that just because the motor may say 5 hp, that does not mean a constant 5 hp current load. The actual load will fluctuate depending on actual use. You don’t normally do hogging cuts on a jointer. It’s nice to see wadkin often cast the electrical boxes into the machine.

[@dougsaunders8109]

True but that is a plastic surround for the VFD. There is no direct contact of VFD to plate so any heat will only be transferred by air not direct contact. Jack’s comment of lack of heat makes more sense than aluminium heat sink

[@jackEnglishmachines]

@@dougsaunders8109 the back of the VFD is not plastic it is metal. The fan is not something that runs constantly and the temperature rating of the VFD is 40°C Dev has said the motor is not really loading all that much. I've got this VFD and smaller enclosures going on five years. No issues at all another interesting feature of the VFD is it can display the VFD temperature on the screen. I'll use it to see how it performs but I suspect it'll take a while for it to heat up the cast-iron.