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[RebAl]

Originally Posted by dlavery

Actually, it makes perfect sense the way it is. This way, motors/compressors cannot be connected straight to power sources - they must be connected to a speed controller or relay. And you cannot double up the speed controllers/relays to create parallel circuits to power the motor in an attempt to double the available amperage.

If it was the other way around, as suggested, then every speed controller would have to be connected to a motor. But motors would not have to be connected to speed controllers - which could lead to big problems.

-dave

I see what your saying. So the intent of the rule was to make sure that each motor, solenoid, etc was connected to the appropriate control apparatus.
Specifically, I was thinking of using a single spike to drive two single action solenoids (such as the Festo) as shown in the attached picture. This is from the spike manual. However, a post on the Q&A forum disallows this type of usage, hence the confusion.

EDIT: It appears that the question I am referring to has been removed from the Q&A forum.