OutBack Power Technologies User Forum

Great, I changed Absorb specs on FX, FM and FNDC from 54.6v to 56.4v. I also plugged FNDC back up. I will investigate "trim pot" and using FNDC for LBCO for inverter in the morning. I have learned a lot today thanks to you Raysun and my neighbor. Thanks so much for having the patience...I...

LOW BATTERY CUT OFF USING THE FNDC The FX inverter LBCO parameter cannot be set to the 50V cutoff specified for the Phi battery. The FNDC's voltmeter can track battery voltage, and its relay programmed to switch from a closed (ON) state to an open (OFF) state. The FNDC can control the FX Inverter ON...

ClaudeJr wrote: ↑Sun May 15, 2022 4:46 pm Got it...ok, let me know how to go about calibrating the devices...and also the LBCO for the inverter

The calibration procedures are listed above.

viewtopic.php?p=95210#p95210

54.6v (almost there) 54.6V is the old Phi specification for "long Absorb", initially specified at 1H, then modified to 2H. My testing took 1:27H to complete. It is not the currently recommended profile. The latest spec is: Absorb voltage = 56.4V Absorb Time = 0.1H With the FNDC unplugged,...

HAVING THE RTS PLUGGED IN HAS THE POTENTIAL OF DESTROYING YOUR LIFEPO BATTERY.

I suggest unplugging it so temperature compensated charging is disabled.

Aloha from Kahuku, Ka'u, Hawaii Island

Its going to take a bit to create a guide.

Step #1 Calibrate FNDC.

ClaudeJr wrote: ↑Sun May 15, 2022 2:52 pm Almost there...the low battery cut off for inverter only goes up to 48v... documentation states setting it at 50v...is there a work around for that ?

Yes. Get everything else set up first.

It involves the FNDC and FX Inverter ON/OFF terminals.

Suggest making that a separate project.

ClaudeJr wrote: ↑Sun May 15, 2022 12:39 pm Also, what should I set the absorb end amps for my system at...

The examples I posted were calculated for your battery capacity.

FM80 End Amps = 0
FNDC Charged Return Amps = 3

Oops. Except for:
FX EQ Voltage = 56.0V

GM. I'm looking at performing my upgrade this morning...I looked for calibration instructions and how to's...could not find any that made sense...you mentioned, calibrating my FX, FM and FNDC before switch...can you bring me up to speed on how FM80 calibration: https://forum.outbackpower.com/viewto...

JRHill wrote: ↑Sun May 15, 2022 9:57 am Probably the same in many places? My batteries are often full by noon - at least full as I define full.

But in the winter I could triple my array and still have to run the generator for 2.5 months. It is what it is and where it is.

Yes, it moves so easily from feast to famine.

Now you just need to find something to use all that free excess power :cool: Still working on a free charging station for homeless Tesla owners. Seriously, batteries are fully charged most days by 11:30. Today, I planned to disconnect the PV arrays at 10:15 to leave some room in the battery so I co...

Screenshot_20220514-123424_Gallery.jpg 7kW PV array in full sun at "Lāhainā Noon", a twice-yearly event in Hawaii where the sun reaches its zenith (solar noon) directly overhead. A pole stuck vertically in the ground has no shadow at this moment, the angle of incidence on the nearly flat-...

Mixing battery types isn't recommended, but you could probably get away with connecting the AGM in parallel with the Phi for a short while to add some charge. Its the "MacGyver" method. It could be incorporated into the steps I outlined, and would make disconnecting the AGM while operating...

Not really important. But maybe under 3rd Party Batteries - SimpliPhi

Take the last paragraph and post it in a new thread.

We can start with that.

fcwlp wrote: ↑Fri May 13, 2022 5:41 pm

fcwlp wrote: ↑Fri May 13, 2022 4:42 pm Mike, no intermediate position on these breakers.

Mike, you were right. I have never seen one trip but have toggled them many times.

Mike is always right. Dag-nab it.

Now you have the experience! Welcome to the club. The motto is: "Don't smoke 'em, if you got 'em."

OB directed me to a list of chargers (Integration Guide) that they recommend. The only one available is for an E bike.

What is the charge voltage of the E bike charger? What's its rated current output?

Occam's Razor gives a clean shave every time.

Hello, Will the mate3s "Learn" the settings of my two inverters and three charge controllers when I swap out the mate or will I need to copy out all of my existing charge controller and inverter setings to enter them into the mate3s? Thanks... Marty All the charging parameter values are s...

Hello, Will the mate3s "Learn" the settings of my two inverters and three charge controllers when I swap out the mate or will I need to copy out all of my existing charge controller and inverter setings to enter them into the mate3s? Thanks... Marty All the charging parameter values are s...

Are the various circuit breakers on the Outback panel labeled? Can you post pictures of them?

Can you post a picture of the Mate summary screen?

Do you have hand tools and a multimeter to do some voltage measurements?

I'm using the bb2 bar for the battery connections then to the FP1 + and - cable leads. I'll need to schedule a time to get my neighbor over to assist. What would the next steps involve ? BB2s are great. Partial steps above. *NOTE* DO NOT MAKE THE CHARGING CHANGES UNTIL READY TO CHARGE THE PHI BATTE...

OK. Next steps. Prior to switching over to the Phi battery, its helpful to calibrate the FM80, FX3048T, and FNDC. With lithium, 0.1V more or less turns out to be a lot. Its best that the devices' internal voltmeters read as true as possible. If these are not familiar operations, ask. 1) PREPARING TO...

Two Phi battery blocks most definitely will start an FX3048T. After sitting for 5 months, they likely need to be fully charged. You can charge them with your FX3048/FM80 but its going to take a bit of "sleight-of-hand" to get started. The very first step will be to get everything prepared....