© 2012 Magnum Energy, Inc.
33
3.0 Setup
poor quality voltage, and are highly recommended if using a generator
for charging. The transfer time from Standby mode to Inverter mode is
>16 milliseconds when using these settings.
Dropout = UPS Mode
– Use the
UPS Mode
setting when the AC source
is well regulated above 105 VAC (200 VAC for export inverter models),
and the inverter loads are sensitive to voltage
fl
uctuations. This setting
is intolerant of voltage
fl
uctuations and will provide a quick transfer. The
transfer time from Standby mode to Inverter mode is
≤
16 milliseconds
when using this setting. Do not use this setting if using a generator as
your AC source.
Info:
If you get nuisance AC disconnects, either change the setting
to 100 VAC or less (export models 190 VAC or less), or obtain a
better voltage-regulated AC source.
•
03E Absorb Done (Time, Amps, SOC)
–
This setting identi
fi
es whether
time, amps, or SOC are used to determine when the second stage of
battery charging (Absorption stage) is
fi
nished. The charge cycle transi-
tions to the
fi
nal charge stage (see
03G Final Charge Stage
) afterwards.
Absorption is the second stage of the charge process that attempts to
fully charge the batteries.
Info:
If the Absorb stage is short or terminated, the batteries may
not receive a full charge. In contrast, if the Absorb stage is too long
the batteries may be overcharged. Either scenario may lead to dam-
age to the batteries. Contact your battery manufacturer to ensure
the best charge settings are used for your type of batteries.
Set Absorb Done Time
–
Set Absorb Done Time
is used when a speci
fi
c
time is determined to be the best solution for ending the Absorption stage.
When using time, the battery bank size will typically determine the length
of the
Absorb Done Time
setting. The larger the battery bank, the longer
the absorb time needed to ensure a full charge to the batteries. Taking
speci
fi
c gravity readings of the batteries and adjusting the absorb time
may be needed in order to obtain the appropriate absorb time for your
battery type and battery bank size. See Table 3-3 to help select the
Absorb
Done Time
setting based on the amp-hr capacity of your battery bank.
Default setting:
Absorb Done Time = 2.0 Hrs
Range:
0.1-25.5 Hrs
Info:
The
Absorb Done Time
setting’s range is dependent on the
software revision of your inverter. With inverters having a revision
5.0 or greater, your available range is 0.5 to 25.5 hours. However,
if your inverter revision is less than 5.0, even though you can ad-
just the setting from 0.5 to 25.5 hours, the available range is only
from 1.0 to 6.5 hours. Any setting less than 1.0 hour or greater
than 6.5 hours is not recognized, and will cause the charger to
revert to the default setting of 2.0 hours. See Section 3.2 for more
information.
