Sync/Anti in Reefcrest & Lagoon mode?

[sjm817]

Tim there is a bit of a debate on the function of Sync/Anti Sync in Reefcrest & Lagoon modes. Could you clarify?
http://www.reefcentral.com/forums/showthread.php?s=&threadid=1692362
Thanks

 

[Hookup]

Sjm817 beat me to it... but to clarify, this is the thread we are refering to:

http://www.reefcentral.com/forums/showthread.php?s=&threadid=1692362

Thanks for your help.

 

[EcoTech Marine]

Both Sync and Anti-Sync function in all modes except for constant speed. In constant speed mode there is only sync. During Anti-Sync in any of the modes the slave pump does 100% - the speed that the master pump is operating at (but scaled to whatever the max speed of the master pump is).

 

[Hookup]

Tim,
If I understand correctly the following is true.

Master - Reefcrest mode
Slave in Anti-Sync - running at 100% (scaled to master's setting)

So the Slave is a constant output and only the Master does the variable output?

 

[EcoTech Marine]

I'm not exactly sure what you're saying above. Let me try to explain it again:

In slave mode, a pump's speed is determined by the master pump. Adjusting the dial on the slave pump does nothing. If the slave pump is in sync then it is simple, it does the precise same thing as the master. If the slave pump is in anti-sync then it will vary inversely to the master.

For example, if the master pump is set to 100% but is currently at point in the Reefcrest cycle where it is operating at 30%, then the slave pump will be at 70%. This is the definition of inverse, it is The max speed of the master pump minus the current operational speed of the master pump.

 

[Hookup]

Tim,
Thanks for the clarification, but being as thick as I am I still have a question.

The confusion, at least that I'm having, is around maximum output vs current output in the two modes listed above.

In a single pump scenario the max output is set with the dial, and the current output is variable between 0 and max over time for both reef crest and lagoon modes.

When a slave is introduced, it's clear how the max output is set on the slave based upon sync or anit-sync settings, but is the current output synced/anti-synced as well?

I believe the answer is "no", the current output is internally and randomly generated based upon the mode of the pump (lagoon vs reef-crest) using the max output that is reflective of sync or anti-sync settings.

Tim

 

[EcoTech Marine]

Hi Tim-

When a slave is introduced, it's clear how the max output is set on the slave based upon sync or anit-sync settings, but is the current output synced/anti-synced as well?

Yes, the current output of the slave pump when in anti-sync mode would be the maximum output of the master pump minus the current output of the master pump. In sync mode it would just be the current output of the master pump. As the master pump varies, the slave will vary inversely or in sync to the master pump.

In slave modes the slave pumps get their instructions only from the master pump, they do not run autonomously in anyway. That's the main purpose of the wireless sync'ing.