AUX ports in the Flexpower One

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raysun
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AUX ports in the Flexpower One

Post by raysun » Wed Dec 06, 2017 10:23 am

AFIK my FlexPower One has 3 AUX ports: one each on the FX3048T, FlexMAX80, and Mate3. The AUX ports on the inverter and charge controller are factory configured to run their internal cooling fans. This leaves a single AUX port on the Mate3 to controll external devices - typically a generator in an AGM scheme.

Questions:

Is there a way to make additional AUX ports available on a FlexPower One?

Is it possible to repurpose the AUX ports on the inverter and charge controller by removing the fans, and putting the fans on some sort of thermostatic control?

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Jorge Guzman
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Re: AUX ports in the Flexpower One

Post by Jorge Guzman » Wed Dec 06, 2017 10:30 am

raysun wrote: Is it possible to repurpose the AUX ports on the inverter and charge controller by removing the fans, and putting the fans on some sort of thermostatic control?
That is interesting. I haven't heard anyone doing such thing but no one can stop you from trying O:) just keep in mind modifying may void the warranty.

FLEXpower one systems also come equipped with a FLEXnet DC monitor which also has a Aux relay (dry contacts) that can be controlled by either voltage or state of charge.

Jorge
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raysun
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Posts: 1475
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower One: FX3048T, (2) FM80, MATE3s, FlexNetDC
Outback 200NC batteries (8 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: AUX ports in the Flexpower One

Post by raysun » Wed Dec 06, 2017 10:46 am

Jorge,

Thanks for the response. I overlooked the FNDC AUX port. As to the AUX ports on the inverter and charge controller, it seems OB took a bit of a design "shortcut" by fitting them with fans (as opposed to having a separate, dedicated circuit for fan control) thereby making the ports unavailable for other, potentially higher-value functions. Just a thought for future designs.

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Jorge Guzman
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My RE system: VFXR3524A, FM80, MATE3. 3x 260W REC. 4x Trojan L16 FLA 370Ah.
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Re: AUX ports in the Flexpower One

Post by Jorge Guzman » Wed Dec 06, 2017 10:57 am

Since you have a sealed inverter, those models come with an internal fan and external (which uses the aux to power it) as opposed to a vented model only comes with an internal fan thus freeing up the aux terminal. Give/take situation.

Radian Inverters were designed with that in mind and come with dual AUX terminals.

btw - the charge controller has an additional 12v AUX terminal apart from the internal cooling fan.

Jorge
Jorge Guzman
Sr. Strategic Platforms Analyst


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raysun
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Posts: 1475
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower One: FX3048T, (2) FM80, MATE3s, FlexNetDC
Outback 200NC batteries (8 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: AUX ports in the Flexpower One

Post by raysun » Wed Dec 06, 2017 11:03 am

Jorge, you just made my day! That's great news. Thank you for the insight.

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