Installation manual

System Operation Description
5-11
Copyright

2001 Phone: [phone] RE-4500
Vanner Inc. FAX: [phone] Installation Manual
4282 Reynolds Dr. www.vanner.com Rev 10d
Hilliard Ohio 43026 RE Owners_Manual_Rev10d D99988
INCORPORATED
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If the AC input is still bad after 95 Seconds, the generator relay
is opened and the RE-4500 waits for the "Gen Retry Dly"
period of 5 minutes before trying again. This sequence will
cycle continuously as long as the battery voltage is low and the
grid is bad.
If the AC input is good, then the inverter/charger will progress
through its charging stages using the generator until it reaches
the last one. The factory (or default) setting for charging stages
is 7 so the last one is the 7th. The 7th stage is named "END,"
and is a float setting. When the software reaches this last stage
called "END", the relay is opened thereby stopping the
generator. The generator won't restart until the battery voltage
falls to less than the battery minimum threshold again.
Grid Interactive
This mode provides power from the RE-4500 in parallel with a
second source of power such as the utility or a generator. When
paralleling the utility, the purpose is to sell any excess power
or to limit the peak current consumption. When paralleling a
generator, the purpose is to “stiffen” the AC bus, to provide
peak power that the generator alone is not capable of
providing.
Note:
Strict limits from Sandia National Laboratories are used during Grid
Interactive Mode - Surplus Power. User settings are ignored.
Surplus Power
In this mode the RE-4500 regulates the batteries to their Float
level. Surplus power is directed to the Grid. The implication is
that another source of power such as a Photovoltaic array is
delivering more current into the battery than is required to
maintain a charge.
Note:
Replaces Vanner’s “Solar Mode.”