Absorb setting is being bypassed

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Re: Absorb setting is being bypassed

Postby JRHill on Sun Mar 17, 2019 10:46 am

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Re: Absorb setting is being bypassed

Postby raysun on Sun Mar 17, 2019 11:14 am

I've understood it that way too. My 'True or not?' question is a product of my perverse sense of humor.

SOMETHING is affecting the Absorb charge timers on both my FM80 and FX3048T. 3 hr Absorb time terminates at approx 2:15. Many days a 30 to 70 minute Absorb time.

I know there is a lot of logic behind the Absorb countdown timers. I suspect some of it has changed somehow.

I'm thinking of opening a support ticket so there can be a formal look into the issue.

Before doing so, I'd like to make sure I understand how this particular clock is built - I certainly don't understand what time its telling.
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Re: Absorb setting is being bypassed

Postby SandyP on Mon Mar 18, 2019 1:36 am

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Re: Absorb setting is being bypassed

Postby JRHill on Mon Mar 18, 2019 6:52 pm

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Re: Absorb setting is being bypassed

Postby SandyP on Mon Mar 18, 2019 11:59 pm

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Re: Absorb setting is being bypassed

Postby chinezbrun on Wed Mar 20, 2019 2:21 pm

I believe depends of Global Charge Termination Y or N.
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Re: Absorb setting is being bypassed

Postby JRHill on Wed Mar 20, 2019 2:45 pm

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Re: Absorb setting is being bypassed

Postby chinezbrun on Thu Mar 21, 2019 12:03 am

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Re: Absorb setting is being bypassed

Postby raysun on Thu Mar 21, 2019 5:50 am

Sure.
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Re: Absorb setting is being bypassed

Postby JeffinthePeace on Fri Mar 22, 2019 3:50 pm

Following this post now too, as my FM80 doesn't seem to be obeying my commands...
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Re: Absorb setting is being bypassed

Postby JRHill on Mon Apr 15, 2019 6:29 pm

Different behaviors continue. Two days ago AGS was Off and the batteries were pulled low but not to low voltage shut down. Around mid afternoon yesterday it was a given that there would be little solar. So I bulked with the bigger gen and moved to the 'lil on for the absorb. Seven hours later I was down to minimum absorb for several hours. I kept restarting the Bulk, and I couldn't get above 92% SOC. Today we had sun and everything charged to 100% as normal.

All the charge voltages were on target. But the SOC was whacked out. How does that happen on what s/b a rolling average? And then back to normal without a reset?!?
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Re: Absorb setting is being bypassed

Postby raysun on Mon Apr 15, 2019 7:00 pm

Jim,

This probably is not what you are seeing, but on occasion, like right now on my system, PV charged the battery to about 45 min of absorb. Then PV harvest decreased (rainstorm), and load increased (wife.) After 3 hrs. @90% range, I kicked on the generator. Voltage rose to absorb, PV harvest could maintain it, inverter charger went idle. PV harvest dropped again, battery voltage dropped below Absorb, but inverter charger did not resume charging. Switching Mode from Auto to On engaged the charger.

As this is being typed, PV harvest has increased with attendant iding of the Inv. charger, and decreased resuming the charger, to maintain the Absorb voltage.

The SOC has ticked up 1%
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