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Unread 28-02-2010, 23:03
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Re: Multiplex Festo Valves

Quote:
Originally Posted by C3PO View Post
My apologies for the confusion. In a nut shell:

2. I wish to multiplex each of the 8 24V solenoid breakout lines with a SPDT relay driven by the digital side car so that the 24V breakout line can connect to either Festo of the two valve solenoid coils but only ONE at at time.


C3PO

Quote:
<R46> All active Power Distribution Board branch circuits shall be protected from overload with an appropriate value auto resetting Snap Action circuit breaker (from the KOP or identical equivalent).
B. Each Spike relay module branch circuit must be protected with one and only one 20-amp circuit breaker on the Power Distribution Board. No other electrical load can be connected to the breaker supplying this circuit.
I think this prevents using 24 volts with the spike relays, the only legal relays.
Also,
Quote:
<R65> Solenoid Breakout outputs shall be connected to pneumatic valve solenoids only. No other devices shall be connected to these outputs.
I believe that this prevents relays from being used to switch solenoids controlled by the breakout.
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