So many of us will have some 24 volt wave pumps really soon! (macboat, are they here yet?! or we going to have to change you to slowboat,, just kidding, We're all indebted to you and I hope its expressed in many frags to you. :wavehand
Bugs DIY vortech, shows a nice simple solution for the Vortechs. It looks like the intelligent parts that sense the power loss and switch the source is located within the vortech driver.
We need the Jebao "homegrown" version, because lets face it, most jebao buyers are people who diy a fair bit (or risk a beating from spouse). We simply draw the line at 400+ for wavemakers. Therefore, various aspects of our reefs be "homegrown" aka diy.
12v-24v pumps make a battery backup system even easier for us who don't have them yet. Looking into it, people have used any 12v battery and this Tunze part http://www.bulkreefsupply.com/tunze-turbelle-safety-connector.html
Looking at that part, I'll bet its a double pull double throw (DPDT) relay trying to look like something expensive! BTW, if you know whats in that box, please enlighten us!
Maybe it should be $4 on ebay and look like this
The relay works by connecting pairs of wires depending on whether a little coil is getting 12v or 0v. (There's 24v coil and other versions of the relay too)
So I've ordered the relay and believe it should switch power source from the pumps power adapter to any 12v to 24v source (I'd do a single 12v battery and let the pump run at half speed in event of power loss).
Now, if the DPDT relay does its job and we have 12v coming to the pump from a battery, I still need a 1-5 volt analog signal (which came from the Jebao controller or, for me, Apex when the power was on) to that third wire that tells the pump to run and how fast. I plan on using a voltage divider circuit (just two resistors) to tap the 12v from the battery and drop it to 5v to supply that control wire.
Oh, and for trickle charging, maybe grab a cheap charger at Harbor Freight.
So DPDT relay's 8 connections look like this:
2 wires from a 12v source that is powered normally, but off when power fails
2 wires from pumps normal power source
2 wires going to the pump
2 wires from backup battery
I'll update as things arrive, but please chime in with thoughts about how to do this. (like what if or what amp inline fuses to use?)
Or, if you've already done this, help me not reinvent the "homegrown" wheel, speak up!
Bugs DIY vortech, shows a nice simple solution for the Vortechs. It looks like the intelligent parts that sense the power loss and switch the source is located within the vortech driver.
We need the Jebao "homegrown" version, because lets face it, most jebao buyers are people who diy a fair bit (or risk a beating from spouse). We simply draw the line at 400+ for wavemakers. Therefore, various aspects of our reefs be "homegrown" aka diy.
12v-24v pumps make a battery backup system even easier for us who don't have them yet. Looking into it, people have used any 12v battery and this Tunze part http://www.bulkreefsupply.com/tunze-turbelle-safety-connector.html
Looking at that part, I'll bet its a double pull double throw (DPDT) relay trying to look like something expensive! BTW, if you know whats in that box, please enlighten us!
Maybe it should be $4 on ebay and look like this
The relay works by connecting pairs of wires depending on whether a little coil is getting 12v or 0v. (There's 24v coil and other versions of the relay too)
So I've ordered the relay and believe it should switch power source from the pumps power adapter to any 12v to 24v source (I'd do a single 12v battery and let the pump run at half speed in event of power loss).
Now, if the DPDT relay does its job and we have 12v coming to the pump from a battery, I still need a 1-5 volt analog signal (which came from the Jebao controller or, for me, Apex when the power was on) to that third wire that tells the pump to run and how fast. I plan on using a voltage divider circuit (just two resistors) to tap the 12v from the battery and drop it to 5v to supply that control wire.
Oh, and for trickle charging, maybe grab a cheap charger at Harbor Freight.
So DPDT relay's 8 connections look like this:
2 wires from a 12v source that is powered normally, but off when power fails
2 wires from pumps normal power source
2 wires going to the pump
2 wires from backup battery
I'll update as things arrive, but please chime in with thoughts about how to do this. (like what if or what amp inline fuses to use?)
Or, if you've already done this, help me not reinvent the "homegrown" wheel, speak up!
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