Maxspect Gyre Icecap module contents?

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PostPosted: Sun Nov 22, 2015 6:27 am
I forget who but someone said it was like an RC plane servo type interface and it had a different type of PWM input pattern. Lets see if I can pull up the thread

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PostPosted: Mon Nov 23, 2015 5:05 am
lnevo wrote:I forget who but someone said it was like an RC plane servo type interface and it had a different type of PWM input pattern. Lets see if I can pull up the thread


I remember that thread on reef central.
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PostPosted: Mon Nov 23, 2015 5:11 am
viewtopic.php?f=12&t=5200&start=86
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PostPosted: Mon Nov 23, 2015 5:12 am
It's in there somewhere

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PostPosted: Mon Nov 23, 2015 10:10 am
The Gyre pump (like most so called DC pumps) is really a 3 phase AC pump. The IceCap module accepts a 0-10Volt signal and outputs a 3 phase AC signal where the frequency, current and voltage of the AC are all modulated by the 0-10 Volt input.

It is not simply a matter of changing voltages, it is actually varying the frequency of the 3 phase AC signal going to the pump. Reversing is acomplished by changing the phase order of the 3 AC phases (just like in any 3 phase motor).

The 3 phase output is itself generated using PWM techniques, but it is PWM at 50 KHz and the PWM is being used to generate complex 3 phase AC waveforms.

By putting different rotors in the Gyre it can be configured to produce maximum flow forward, maximum flow backward or a balanced flow. In the balanced flow mode, one end of the pump moves a lot of water when the pump spins one way, the other end of the pump moves a lot of water when it spins the other way. The Gyre is shipped with 4 rotors. 2 A rotors and 2 B rotors. Normally you have an A and a B installed, which gives full output when going forward. If you were to reverse the 2, youwould get full output when going backwards. If you put in 2 A's or 2 B;s you get balanced flow, where it moves the same amout of water in either direction.

I have 2 Gyre 150s in my 6' long 180 gallon tank both running under Reef Angel control with the Ice Cap modules.. I run them in a reversing cycle where one is on at a time and the one that is on goes up to 40%. Twice a day I kick them up to 60% for 1 minute to flush stuff out of the rocks. At 100% the Gyre is so strong that the water will flow in a laminar sheet all the way across the top of the 6 foot length of the tank, down the far end, and stir up gravel on the bottom at the end 6 feet away from the pump.

I have 2 ecotech 40W pumps that are for sale if anyone wants them. After seeing the Gyre I see no use for them anymore. The Gyre is far more powerful, much quieter, and produces this cool laminar flow.

Don

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PostPosted: Wed Nov 25, 2015 12:35 pm
dedvalson wrote:The Gyre pump (like most so called DC pumps) is really a 3 phase AC pump. The IceCap module accepts a 0-10Volt signal and outputs a 3 phase AC signal where the frequency, current and voltage of the AC are all modulated by the 0-10 Volt input.

It is not simply a matter of changing voltages, it is actually varying the frequency of the 3 phase AC signal going to the pump. Reversing is acomplished by changing the phase order of the 3 AC phases (just like in any 3 phase motor).

The 3 phase output is itself generated using PWM techniques, but it is PWM at 50 KHz and the PWM is being used to generate complex 3 phase AC waveforms.

By putting different rotors in the Gyre it can be configured to produce maximum flow forward, maximum flow backward or a balanced flow. In the balanced flow mode, one end of the pump moves a lot of water when the pump spins one way, the other end of the pump moves a lot of water when it spins the other way. The Gyre is shipped with 4 rotors. 2 A rotors and 2 B rotors. Normally you have an A and a B installed, which gives full output when going forward. If you were to reverse the 2, youwould get full output when going backwards. If you put in 2 A's or 2 B;s you get balanced flow, where it moves the same amout of water in either direction.

I have 2 Gyre 150s in my 6' long 180 gallon tank both running under Reef Angel control with the Ice Cap modules.. I run them in a reversing cycle where one is on at a time and the one that is on goes up to 40%. Twice a day I kick them up to 60% for 1 minute to flush stuff out of the rocks. At 100% the Gyre is so strong that the water will flow in a laminar sheet all the way across the top of the 6 foot length of the tank, down the far end, and stir up gravel on the bottom at the end 6 feet away from the pump.

I have 2 ecotech 40W pumps that are for sale if anyone wants them. After seeing the Gyre I see no use for them anymore. The Gyre is far more powerful, much quieter, and produces this cool laminar flow.

Don


Don! Thanks for all the info about what the Gyre pumps do.

I am setting up a 180g as we speak and am planning to do exactly what you're saying with 2 XF150s on my ReefAngel. What orientation do you have them in? (I assume one on each end near the top horizontally from what you posted)

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PostPosted: Mon Nov 30, 2015 9:34 am
AlanM wrote:Don! Thanks for all the info about what the Gyre pumps do.

I am setting up a 180g as we speak and am planning to do exactly what you're saying with 2 XF150s on my ReefAngel. What orientation do you have them in? (I assume one on each end near the top horizontally from what you posted)


Yes, I have them horizontally on each end a few inches down from the top. The only problem I have is that on one end, the gyre goes behind my overflow, so I moved that one as close to the front as possible.

Don
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