Ok, I have my Plank setup with my GHL Profilux 4, and I didn't see it covered in here, so I'm going to do a quick guide. This is assuming you know the basics of using the timer features on the profilux. It's really not hard at all, just setting timer modes for the mixing pump and feeding motors, you can easily integrate a feed pause for your circulation pumps as well using this setup method. For full control you need 2 or 3 channels available on your powerbar, but for basic control you can get away with just a single channel for the feed motor and leave the mixing pump running continually.
You need to set up TWO timers inside the 'Processes' tab.
Timer 1 (or another timer setting of your choice): This controls your mixing pump on the plank, and alternatively can also control your circulation pumps if you want them powered down.
In the 'Switch Mode' tab, set it as a normal timer, and put your description name in there as well.
In the 'Schedule' block, have an appropriate start and end time. You can add multiple timeframes in this timer if you want to feed multiple times a day. I have mine set up at a single time right now. ON at 5:00pm and OFF at 5:15pm.
Timer 2 (or another timer setting of your choice): This controls your "Keg" feeder motor to actually dispense food.
In the "Switch Mode" tab, set it as a "Short" timer. Also add your description name in the switch mode tab. Having it set for "Short" allows you to have the timer on for seconds as opposed to minutes. I have mine coming on at 5:05pm for 30 seconds in this example. This allows time for the gyre to stop, the mixer to start, and fish to recognize the upcoming feeding.
Increasing or decreasing the duration in Timer 2 will regulate the amount of food being dispensed. This is going to be very different for each of us, so I highly recommend you measure a few feeding cycles to make sure the time duration of this motor is correct for your feeding amount.
Like timer 1, in timer 2 you will also potentially set multiple timeframes for multiple feeding events during the day.
Switch Channel: Mixing and Circulation Pumps
Whichever channel you have your plank mixing pump on, set that channel function to "Timer 1", with invert not highlighted. This will make your plank mixing pump turn ON during the times you programmed into "Timer 1".
I have my Gyre pump also set to "Timer 1", but with the invert highlighted, meaning it will turn OFF during the times programmed into "Timer 1".
Switch Channel: Plank Feeding Motor:
The channel with your plank feeding motor gets set to "Timer 2", with invert turned off. This will activate your feeding motor at the time indicated in "Timer 2", for the duration set in that timer.
