The Classic can overshoot but not very much, normally.
I would try this...
Sell to grid while watching the battery voltage and then turn the
inverter breaker off
and see what the battery voltage does. If the battery voltage rises to
the mid 60V range
from a low sell voltage of around 52 or 53V, then something is really amiss.
If the system has been in service for some time, you might also check
the capacity of
the batteries. They should not easily allow 65-ish volts. I don't
think that the
FM's communication can respond to keep spikes from happening any better
than it could without communications. Data packets just don't come all that
often.
boB
On 7/18/2017 5:25 PM, Jerry Shafer wrote:
Wrenches
The Outback system with grid connection would be programmed for grid
connection all the way from the inverter to the Outback FM CC, using a
midnite CC this option may not be possible resulting to a CC push if
the grid disconnects resulting in a spike. the disconnect might be
from settings to tight or as it was said utility spikes. You might
thing that the battery bank should take it up but internal resistance
in the battery or to it may prevent it. The other thing I would look
at is connections, if there is any resistance in a connection this
could happen.
On Mon, Jul 17, 2017 at 2:36 AM, Drake
<[email protected]
<mailto:[email protected]>> wrote:
Hello Wrenches,
My client reported seeing an overvoltage error message on her Mate
3 on a Radian system. The Radian is selling to the grid and is
being fed by a Midnite Classic 200. It has shown two spikes so
far, the last one going to 67 volts and lasting 1 second. The
batteries are Concorde AGM, 305 AH.
Does this momentary spike seem like a problem or a warning of
problems to come?
Thanks,
Drake
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