3.0 Setup
25
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EndChg
–
These selections determine when the second stage of
charging (Constant Voltage) is
fi
nished. If using the
DoneTime
or
DoneAmps
selections, once the constant voltage charge cycle is
fi
nished, it transitions
to a Silent charge stage. After entering the Silent Charge mode, the charger
automatically stops charging, but is still actively monitoring the battery
voltage. The charger will remain “Silent” until the battery voltage drops to
the
Recharge
setting, at which time the charger will start another Constant
Current/Constant Voltage charge cycle
(see Figure 3-13)
.
Default:
Time
Range:
Time, DC Amps, Hold VDC
* DoneTime
– The
DoneTime
selection is used when a speci
fi
c time
is selected to be the best solution for determining when the batteries are
fully charged and the Constant Voltage stage needs to end.
This setting
determines how long the charger will hold the battery voltage at the
Chg
Volts
setting—based on a set time period. When using time, the battery
bank size will typically determine the length of the
DoneTime
setting.
The larger the battery bank, the longer the time needed to ensure a full
charge to the batteries. If the setting is from
0.1 to 25.5 hrs
, the charger
transitions to the Silent Charge mode after the battery voltage has been
at the charge voltage setting for the selected time. Refer to Table 3-2 to
assist you in selecting the
DoneTime
setting based on the AHr capacity
of your battery bank.
Default:
1.5 Hrs
Range:
0.1-25.5 Hrs
* DoneAmps
– The
DoneAmps
setting is used when the DC amperage
supplied to the batteries (i.e., return amps) determines when the
batteries are fully charged and the Constant Voltage stage needs to end.
This setting determines how long the charger holds the battery voltage
at the
Chg Volts
setting—based on a minimum current setting (i.e.,
return amps). During the Constant Voltage charge mode, as the battery
charges, the current from the charger slowly decreases. When this current
decreases below the
DoneAmps
setting, the charger transitions to the
Silent charge stage. Most battery manufacturers use a speci
fi
c formula
to determine return amps (indicating a full charge for their particular
type of battery). The formula used by most manufacturers to absorb the
batteries is C/20, where C=Battery Bank’s Total Amp Hours. Basically,
they take approximately 5% of the total battery bank size, and consider
the battery totally charged when the charger’s return amps drops to this
level. Continuing to charge past this level may possibly overcharge the
batteries. Check with your battery manufacturer to
fi
nd out what the
correct return amp settings are for your batteries.
Default:
20 ADC
Range:
0-250 ADC
Chg Volts
– Sets the voltage level at which the charger will hold the
batteries during the Constant Voltage cycle.
Default:
13.8 VDC (12v), 27.6 VDC (24v), 55.2 VDC (48v)
Range:
OFF, 12.0-16.0 V (12v), 24.0-32.0 V (24v), 48.0-64.0 V (48v)
Info:
Setting the
DoneAmps
value to zero keeps the charger in the
Constant Voltage charge mode until the
MaxTime
setting (under
SETUP: 04 Battery Type/CC/CV
) is reached.
