Quote:
Originally Posted by madkeenreefer
If the OM drum needs only to rotate 90deg to open the opposing ports then you could easily calculate the RPM of the OM valve.
Lets say 2rpm that means every 15sec 90deg is achived.
Theirfore if you have a adiquite timer you could eaisly switch power off for 6hrs then turn power on for a period of time which would be chosen bye increments of time such as 15sec (90deg), 45sec (180deg) ,1:15 (270deg) ect.(creating random flow to simulate the changing of the tide) then close the power to the OM to have the flow comming out of the other ports
make sence?
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Finding a cheap reliable multi-function timer is the issue, you may as well go directly to PLC do not pass go and do not collect 200 dollars, the OM revolves at 1rpm, it may take a little time to program it correctly guessing time per degrees, I wouldn't even waste my time, set it for 15 sec intervals and then eventually it will repeat its self every 4 years
you are better off with a positioning sensor to be accurate.