Hi Bruce,
Volt/time start is pretty accurate.
I'm wondering if you have a battery problem that is causing the issue.
I'm guessing that the volt/time is starting before the % shows it
should start?
jay
peltz power
On Oct 15, 2009, at 10:17 AM, Mendocino Solar Service wrote:
Hi Kent,
We're trying to work the bugs out of our first FNDC for a demanding
customer. It came as part of a DC Power assembled power center. They
had added a circuit of their own design that had an Auto-Off-Manual
toggle switch and a relay that was connected to both the FNDC and
the FX aux. It didn't work. Outback said to use either the FNDC
relay or the FX aux with an external relay, which is what we did,
and it's worked fine for several months, controlling the generator
by SOC. However, lately the SOC reading seems to have gotten out of
sync with reality, big surprise. The volt start settings are over-
riding the SOC. The challenge is how to camp out at the customer's
house for a week to make the observations and tweaks to get all the
programming set up appropriately to the realities of the battery and
array.
I would suggest removing generator control from the FNDC relay and
let the Mate/AGS control an external relay. The FNDC seems to feed
it's data to Mate so it can work off of SOC.
I agree with others that the FNDC screens are way too complicated
for all but a tech-head customer. At least the Trimetric is simple
enough you can get almost anyone to read amps and volts, and even,
God forbid, days since charged.
Bruce Erickson
Mendocino Solar Service
PO Box 1252
Mendocino, CA 95460
707-937-1701
On Oct 15, 2009, at 9:35 AM, Kent Osterberg wrote:
Wrenches,
I see there are lots of negative feelings about the FNDC and about
how complicated the Mate is in general. I haven't seen many direct
responses to the question. Have any of you used the relay in the
FNDC and had problems with it not turning the generator off?
Kent Osterberg wrote:
Has anyone besides me had problems using the relay in the Outback
FNDC? I've had three different customers report that their
generators failed to turn off.
--
Kent Osterberg
Blue Mountain Solar, Inc.
www.bluemountainsolar.com
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