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9. TEST AND OPERATION
9.1. Turn on AC input breaker, then input power indicator lights.
9.2. If the connection error indicator lights, check the properties of battery.
9.3. Charging method selection
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Float charging
This charging is normal operation mode to charge the battery for starting the engine genset,
which stands by main power cut off. When all connection have been completed as per above
wiring connection drawing, then make two breakers (AC input, DC output) “ON”, charger
starts charging action at float charging.
full charging point
start point
charge
0
float charging point
charging current
float charging voltage
charging current
FLOAT CHARGING CURVE
As the battery is installed from storage condition and the charger start charging battery charger
operates along with above float charging curve. In other words, when two breakers turn on,
the charger supply the nominal current to the battery at low voltage until it reaches full charge
point, from this point the current decrease slowly to keep on a little current at constant voltage
(= float charging voltage),
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NOTE 2
Generally, on float charging mode not to need a rush current like engine starting, the
battery charger must keep output voltage to be a constant float charging voltage at the
full charged condition of the battery and output current below 1.5 ~ 2Adc, which is the
current to supply the consumption quantity for the electrical loads connected to the
battery. But when engine starting occurs with the battery under-charged below float
charging voltage, the charger will supply all of theses current to the load and it may
cause battery damage.
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Equalize charging
The purpose of the periodic equalize charging is to ensure that all of the battery cell are
at full charge. but, equalizing voltage charge should be done until the equalize charging
time expires one time every 3 months.
This charging starts by pushing equalize charging start push button [red color], equalize
charging voltage is set at the factory before it ex-work.