Slave inverter designation

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stevetull
Forum Virtuoso
Posts: 91
Joined: Tue Feb 24, 2015 6:40 am
My RE system: FlexPower Two:
2 VFX3648, X240, 2 FM80, Mate 3s, FnDC, Hub 10
One array facing south at 30 degree tilt
One array facing southwest at 10 degree tilt
Total of 8kW
16 Fullriver AGM DC400-6 = 830Ah @ 48v
OpticRE: Paige cabin
Location: Near Bastrop Texas
Contact:

Slave inverter designation

Post by stevetull »

We're upgrading our system. We've added another solar array and finally a decent battery bank. We've also upgraded from the Mate to the Mate3s which I'm programing now. I'm going through all the settings for the entire system.
I have a question regarding the inverter stacking options and which way to designate the slave inverter. The stacking configuration we had chosen is Outback series stacking. The master is 1-2 phase master. I had originally designated the slave as L-2 and now I'm wondering whether it should be L-1 instead. We do have a PSX-240 auto transformer. I'm guessing the system will perform differently depending whether I designate the slave as L-1 or L-2.

Thank you.

-Steve
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Jorge Guzman
Strategic Platforms
Posts: 251
Joined: Thu May 29, 2014 9:44 am
My RE system: VFXR3524A, FM80, MATE3. 3x 260W REC. 4x Trojan L16 FLA 370Ah.
Location: Arlington, WA

Re: Slave inverter designation

Post by Jorge Guzman »

Hello Steve,

If you are using the X240 for balancing L1 and L2 you will need to configure your stacking as "Outback".
Port 1: 1-2 Ph Master
Port 2: OB Slave L2

Jorge
Jorge Guzman
Sr. Strategic Platforms Analyst


Watch easy to follow video tutorials:
https://www.youtube.com/c/wattschool
stevetull
Forum Virtuoso
Posts: 91
Joined: Tue Feb 24, 2015 6:40 am
My RE system: FlexPower Two:
2 VFX3648, X240, 2 FM80, Mate 3s, FnDC, Hub 10
One array facing south at 30 degree tilt
One array facing southwest at 10 degree tilt
Total of 8kW
16 Fullriver AGM DC400-6 = 830Ah @ 48v
OpticRE: Paige cabin
Location: Near Bastrop Texas
Contact:

Re: Slave inverter designation

Post by stevetull »

Thank you Jorge. You confirmed for me our decision. After reading the FX manual we realized why we had designated the slave as the L2 in the first place.

Thanks again.

-Steve
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