DaveWhat is the size of the battery bank and what is the typical load, let’s say at night or some other peak time? Bank size, SOC and demand can influence voltage. LBCO at 47.2 could be too high under smaller bank higher load situations. Also, with the AC coupled solar in an off grid case, what is
A minor update here. I had the grid zero DOD volts set to 48, and the low
battery cut out was set to 47.2v. But the homeowner told me that their
loads cut out at some point. Does anyone know whether it is possible that
Outback would be using a temperature compensated voltage for one of those
To be fare, Schneider does tell you to follow the commissioning guide.
It should be in the firmware though and should be a warning. It is only
an issue with older XWP BTW.
Let us know what you end up doing Kevin please.
Dave Angelini Offgrid Solar
"we go where powerlines don't"
Hi Chris,
Thanks. Ugh it’s even more irritating to learn this is obviously a known issue.
Yes, I tested gen in bypass mode system off and it is all within spec, forgot
to mention that.
Kevin
From: RE-wrenches On Behalf Of
Chris Sparadeo via RE-wrenches
Sent: April-25-24 11:30 AM
To:
Yes, PLEASE! Provide us with off-grid firmware for XW Pros!
The reason I was updating firmware was to enable AC1 gen charging, for clients
with dual generators. The Insight FW 1.18 clearly said it supported that
feature, but that’s not true.
Schneider now tells that XW FW 2.07 will enable AC1
Hi Kevin,
Let me chime in here. Last year I experienced something nearly identical to
what you are describing. 3 ea. XW pros in an off-grid application. Things
were working fine, but wanted to upgrade firmware for a comms issue I was
having with closed loop BMS and Insight. After the 2.04
Good advice Michael! I had one that the grid code got set by FW and
reverting did not help. Had to start fresh.
I certainly would try the revert as it is so much easier. There just
is too much grid firmware being changed and it does
not need to be done offgrid. I beg people and
Go back to V1.11. I had the same thing happen with an XWPRO and a Central
Maine Diesel with a DynaGen controller. Frequency and Peak to Peak was less
than perfect and the inverter, IF it would qualify the power, sounded like
a garbage disposal. Eric B at Schneider suggested reverting back to the
Ray,
I'm in the same situation. My strategic plan was to work into early old age
( in 20-25 years). But now, I spend half of my time troubleshooting and
replacing equipment on my dime. Between that, competing with Grid-Tied
guys, and having to justify my mark-up to clients comparing my pricing to
Dear Mac,
For a non-battery, PV-direct system, you will need to shop for an appropriate
AC pump, and an AC pump controller, AKA "pump inverter". 3-phase is ideal for
this because it's better for this variable-speed application. However, this
power level, you probably will have to settle for
That sounds like a generator problem. I've seen many gen sets put out a
horrible waveform under load, when battery charging. The waveform, (if
you have an O-scope) usually has a spike on the front of the wave, and
then the wave flattens significantly after. The peak should be 169 v on
a 120
Hi Michael;
I don't think its 12v, I have old Trace 48 v systems still humming along
24 years later, too. Some of it, is the customers. The old school off
grid folks knew how to conserve energy, watch the sun, and were not
going to call unless they couldn't fix it themselves.
Also, the
Here's a different take. Just food for thought and not necessarily a
suggestion. Those 1st or 2nd Gen 12V systems were/are for me the most
reliable and trouble free systems. I'd install one and never hear back from
my customer for a decade or more. I regularly see "rats nest" wired
12V/Trace DR/UX
I had a lot of trouble keeping QO breakers functional on a 12VDC
distribution system. I'd have to move them around every week or so to keep
a good contact on the plug in contacts. They seem to work fine on a 24VDC
system. I went to using MNPV or MNDC breakers instead in PV combiner or
other
Hello Wrenches,
Im looking for recommendations on solar pumps for a stormwater overflow
application. The water will be cruddy so the pump would need to be able to
tolerate that, although we will do our best to mitigate that. I'd like to
be able to pump about 20,000 gallons per day or so at a
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