Search found 4006 matches

by tallgirl
Tue Jan 23, 2018 8:51 pm
Forum: OutBack
Topic: greenLogger Lite Experience?
Replies: 8
Views: 4873

Re: greenLogger Lite Experience?

The software I wrote over 11 years ago started the same way. When I was laid off in '09 I turned it into a business. Things weren't too bad at the start, and I had a few hundred thousand dollars in gross revenue in 2011. 2012 looked like it was the "make or break" year and I needed around $1M in ven...
by tallgirl
Tue Jan 23, 2018 8:02 pm
Forum: OutBack
Topic: greenLogger Lite Experience?
Replies: 8
Views: 4873

Re: greenLogger Lite Experience?

Heh. I really ought to. This is the most I've logged on here in ages. I don't want to say I'd forgotten all about this place, but I've been plenty busy for the past 5 years or so. What my customers most wanted was the ability to monitor and control their equipment remotely, as well as integrate othe...
by tallgirl
Tue Jan 23, 2018 8:38 am
Forum: Backup Applications
Topic: safely connecting a battery bank
Replies: 6
Views: 3890

Re: safely connecting a battery bank

JRHill wrote:If you have to ask this question then you should probably hire a tradesman.
This needs to be pinned at the top of a LOT of forums.
by tallgirl
Tue Jan 23, 2018 8:34 am
Forum: OutBack
Topic: greenLogger Lite Experience?
Replies: 8
Views: 4873

Re: greenLogger Lite Experience?

Kurt - I'm not sure where all that content is located these days. I've had a few major server upgrades at the house over the years, and it has been a LOT of years. I =thought= I'd posted copies to the forum that used to exist for my product, but that forum (and the Intallact one as well) seems to ha...
by tallgirl
Sun Jan 21, 2018 7:31 pm
Forum: OutBack
Topic: greenLogger Lite Experience?
Replies: 8
Views: 4873

Re: greenLogger Lite Experience?

greenHouse Gas and Electric ended operations MANY years ago. It wasn't actually impossible to make a living selling the equipment and software, but it simply wasn't profitable. The real killer was the collapse in PV component costs driving down the expected price for equipment. When I wrote the firs...
by tallgirl
Sun Mar 06, 2016 1:17 pm
Forum: Off Grid Applications
Topic: Possible RTS Failure
Replies: 8
Views: 4099

Re: Possible RTS Failure

Hi Julie, Thank you. I knew both that the 255 was an open circuit reading and that the system defaulted to 25C. Do you know what the system temp should display under that condition? Also, it would be handy to have the RTS profile. Thanks, Chris I forget and I'm not going to disassemble my system to...
by tallgirl
Sun Mar 06, 2016 6:19 am
Forum: Off Grid Applications
Topic: Possible RTS Failure
Replies: 8
Views: 4099

Re: Possible RTS Failure

Chris - Temperature sensors can fail. That's what it sounds like in this case - the reading going to "255" when the sensor is removed means it isn't something like a broken wire, because it would have reported "255" all the time of that weren't the case. When the system detects that it has no RTS, i...
by tallgirl
Sun Mar 06, 2016 6:13 am
Forum: Off Grid Applications
Topic: Need battery based drafting services for permitting
Replies: 5
Views: 2613

Re: Need battery based drafting services for permitting

Tod - I'm not completely surprised OutBack sales and distributors can't help you - it's the installers who have that information and it's to the installers advantage not to share. Are the inspectors asking you for mechanical (structures, load analysis) or electrical (wiring details, disconnects) dra...
by tallgirl
Sun Mar 06, 2016 6:03 am
Forum: OutBack
Topic: Electric Coop doesn't pay for any KWH's above what you use..
Replies: 4
Views: 2598

Re: Electric Coop doesn't pay for any KWH's above what you u

I'm on a Coop also and face the same thing. If I produce more power than I use I don't get a credit. This is on a monthly basis also so any surplus I put back into the line I loose when I start a new month billing cycle. My bill is never zero since they tag you with a usage fee. My bill can be nega...
by tallgirl
Sun Mar 06, 2016 5:56 am
Forum: FLEXmax Charge Controllers
Topic: MPP Maximum
Replies: 2
Views: 3154

Re: MPP Maximum

Have a question on my FM80. What is the "MPP Maximum" setting? Is the number a max percentage? A max Vdc? If I set it to 99, does that mean it operates at max 99% output, or it can take a max 90 Vdc in? Or something else entirely???? Thanks. It's the upper limit on the sweep voltage, as a percentag...
by tallgirl
Mon Feb 29, 2016 2:02 pm
Forum: FLEXnet DC
Topic: SOC suddenly jumps to 100%
Replies: 106
Views: 104434

Re: SOC suddenly jumps to 100%

jcheil - Unfortunatley no one has been able to convince OutBack to modify the FNDC firmware. I'd offered to do it as a subcontractor, back when I had my own business and didn't have to worry about non-compete clauses, and was turned down. Now that I'm completely out of the solar biz - and the electr...
by tallgirl
Sun Feb 28, 2016 9:35 am
Forum: FLEXnet DC
Topic: SOC suddenly jumps to 100%
Replies: 106
Views: 104434

Re: SOC suddenly jumps to 100%

What is your "Parameters Met" voltage and current? Five amps into an 1,100 amp-hour bank is fully-charged. Ten amps into that size bank is fully charged ...
by tallgirl
Sun Feb 28, 2016 9:13 am
Forum: FLEXnet DC
Topic: SOC suddenly jumps to 100%
Replies: 106
Views: 104434

Re: SOC suddenly jumps to 100%

RIght, but if your "charge factor correct net amp-hours" are greater than 0 when that happens, the corrective action is lowering your charge factor so your charging amps are discounted more, and you reach 0 CFC net amp-hours after still more charging. What is your "Parameters Met" current as a perce...
by tallgirl
Sat Feb 27, 2016 11:40 pm
Forum: FLEXnet DC
Topic: SOC suddenly jumps to 100%
Replies: 106
Views: 104434

Re: SOC suddenly jumps to 100%

I disagree that the charge factor cause it. I have shown that it happened EXACTLY as the outback support documentation many times in my system. You can see those exact things happening and poof it goes to 100% regardless of charge factor and I have tried numerous charge factors from 70% to 95%. It ...
by tallgirl
Sat Feb 27, 2016 7:24 pm
Forum: FLEXnet DC
Topic: SOC suddenly jumps to 100%
Replies: 106
Views: 104434

Re: SOC suddenly jumps to 100%

I'll repeat what has been said countless times before - check your charge factor. Happy fun "bug" happens when your net amps into the batteries (and the FNDC knows how to calculate that and it also reports it in the data stream -- it's the Charge Factor Corrected Net Amp Hours) is positive. If it is...
by tallgirl
Sat Feb 27, 2016 6:46 pm
Forum: Mate3 / Mate3s
Topic: MATE3 will not boot
Replies: 9
Views: 7470

Re: MATE3 will not boot

My second (!) Mate 3 has the same problem, so I went back to my trusty Mate 2. How exactly does this "hold the UP button" trick work? I don't like switching back and forth between a Mate 3 and a Mate 2 each time a Mate 3 croaks. I'd really like to fix my existing Mate 3 so that I don't have to RMA o...
by tallgirl
Sat Feb 27, 2016 6:43 pm
Forum: OutBack
Topic: Electric Coop doesn't pay for any KWH's above what you use..
Replies: 4
Views: 2598

Re: Electric Coop doesn't pay for any KWH's above what you u

Could be worse - I live in Austin and I buy at $0.13-ish and sell at $0.09-ish. So, even if I make more than I use, I still pay ...
by tallgirl
Fri Dec 04, 2015 11:05 pm
Forum: MX60 Charge Controller
Topic: MX60 amps/watts output accuracy
Replies: 6
Views: 6135

Re: MX60 amps/watts output accuracy

Trying to measure the current through a shunt directly is pretty hard. Most of the ADCs in devices like an Arudino have a range of 0 to 5 (or 3.3) volts. A 10-bit ADC, like in the original ATmel based devices, has a resolution of 5 millivolts. 12-bits will give you about 1 millivolt, but when you co...
by tallgirl
Fri Dec 04, 2015 3:39 pm
Forum: AXS Port
Topic: Changing Settings via AXS
Replies: 3
Views: 4451

Re: Changing Settings via AXS

If you don't already have a copy of the model for whatever device you're trying to program, go download it from the SunSpec website, and let me know which data point you're trying to program and the value. Thanks, but I'm looking for someone who has actually programmed values on an AXS Port, as not...
by tallgirl
Fri Dec 04, 2015 3:31 pm
Forum: AXS Port
Topic: Modbus basics
Replies: 12
Views: 13396

Re: Modbus basics

fatheadl wrote:Hi. 64255 is OPTICS packet statistics.
Y'all need to stop doing that. It's completely non-compliant and goes against everything that SunSpec is all about. If you want to leave room for other power equipment, you should change that value to 60119.
by tallgirl
Fri Dec 04, 2015 3:29 pm
Forum: AXS Port
Topic: Modbus basics
Replies: 12
Views: 13396

Re: Modbus basics

Andrew - The mixing of 0-based and 1-based numbering has been the one constant in Modbus communications since the '70s. It drives everyone who touches Modbus completely to distraction. For generic SunSpec, there are multiple possible base registers -- 40001, 50001 or just plain ... 1. And of course,...
by tallgirl
Thu Dec 03, 2015 4:49 pm
Forum: MX60 Charge Controller
Topic: MX60 amps/watts output accuracy
Replies: 6
Views: 6135

Re: MX60 amps/watts output accuracy

I'm able to report both whatever my FM60 and FnDC are reporting separately, but this discussion has come up before and neither the CCs or FXs have "guaranteed" accuracy. The FnDC is supposed to be in the +/- 2% range, however.
by tallgirl
Thu Dec 03, 2015 4:19 pm
Forum: Grid Tie Applications
Topic: GVFX programming for load leveling
Replies: 16
Views: 13637

Re: GVFX programming for load leveling

I wrote code which does that using a pair of GVFX inverters and a Mate firmware level which was only available to me and a few other companies. It works fairy well, but you have to reprogram the "Sell RE" voltage using inverter current as the input to a PID loop. If you DO decide to do something lik...
by tallgirl
Thu Dec 03, 2015 4:13 pm
Forum: Grid Tie Applications
Topic: Multiple A/C Inputs??
Replies: 3
Views: 3975

Re: Multiple A/C Inputs??

The best solution to charging a grid-interactive system from a generator is to either use an inverter-generator, such as one of the Honda models that end in "i", or get a DC charger, such as one of the Iotas and attach it to the generator. This has the advantage, especially for folks with grid conne...
by tallgirl
Thu Dec 03, 2015 3:39 pm
Forum: MX60 Charge Controller
Topic: MX60 amps/watts output accuracy
Replies: 6
Views: 6135

Re: MX60 amps/watts output accuracy

They aren't lab-grade equipment -- the various current and voltage sensors are notorious imprecise compared to more precise tools.

My solution was to map an FnDC shut to the charge controller output and report that. That does assume you've only got one charge controller, but it does help.