Connecting Red Dragon to Apex

First step is to put the RD3 controller into remote mode. Disconnect the power from the RD3 controller, connect the 0-10v cable to the RD3 and then to the Apex. Power up the RD3 controller. At that point you will need your profiles setup on the Apex and add a line to the Variable speed outlets that the RD3 will be connected to that calls out your profile.

That said, are you using this pump for a return pump or closed loop? If you're using it as a return pump, why do you want 0-10v control? Return pumps are best as set it and forget it pumps and the manual control over the RD3 via the display interface is much more precise and allows much better range of control vs the 0-10v interface. I run a couple RD3 230's on my system. One for my return and one for my closed loop. The only one I have controlled by my Apex's 0-10v is the closed loop. I don't want my return pump dependant on a secondary controller because if for some reason the controller or 0-10v fails, the pump will shut off.
 
To get into remote mode, hit the menu button. Then use the up or down arrow to find "Remote". Then hit the right arrow to select the mode.

To exit out of remote mode, hit the menu button then use the up or down arrow to find manaul then hit the right arrow to select that mode.
 
I am using it for closed loop.Where exactly does it plug into Apex? Lets start there.

It plugs into the variable speed port on the base unit. They are noted as V1/V2 and V3/V4. It can also be plugged into a VDM module.

You can see the location of the 0-10v connections on the bottom right of this image noted as V1/V2 and V3/V4
IMG_3148_zps80xx1gu8.jpeg


On the 2016 Apex, they are noted as 0-10v connections on the bottom right.
IMG_2548_zpsrkfkhfkn.jpeg
 
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I am just in the process of getting all the pieces for my new tank and I have 2 Rd 150 and 2 Rd 230 pumps on order and just received my I I tial apex order yesterday, the base and vdm modules both have 2 rj45 ports and it says one port is 2 variable ports. How do I cable 2 Rd pumps to one rj45 port

Is there an old fashion y cable with one male and 2 female jacks?

Should I build my own following the pin out on apex site?

Should I really only connect one pump per apex rj45 port

Sent from my SM-G900T using Tapatalk
 
I am just in the process of getting all the pieces for my new tank and I have 2 Rd 150 and 2 Rd 230 pumps on order and just received my I I tial apex order yesterday, the base and vdm modules both have 2 rj45 ports and it says one port is 2 variable ports. How do I cable 2 Rd pumps to one rj45 port

Is there an old fashion y cable with one male and 2 female jacks?

Should I build my own following the pin out on apex site?

Should I really only connect one pump per apex rj45 port

Sent from my SM-G900T using Tapatalk

There is no Y cables. The cables that are offered presently only have one RD3 connection on them so you will end up having to use both RJ45 connections on the Apex for 2 pumps which is unfortunate. That or you could make your own Y cable using a LAN cable that you cut and add to female RJ45's to it. There are wiring diagrams for the variable speed ports on the Apex listed in the Comprehensive reference manual.
 
I love my 10v RD return pump. I have a feed and night profile that reduces the flow.

Here is a picture when I first installed it.
c095e9b16e94eb12abb274e06ff94914.jpg
 
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