On Tue, 30 Jul 2019 21:32:46 +0100, Steve Walker
wrote:

Incidentally, why do the door interlocks have such long delays? Our
machine finishes pumping and stops spinning and comes to a complete stop
within seconds, yet won't allow opening the door for 3 full minutes - a
pain when you are waiting for it to finish.

Some of those interlocks are thermal: i.e. bimetal strip carries a current,
heats, bends and locks, and needs to cool to unlock.


Thomas Prufer