SP LINK | Using SP LINK
Doc #OI0003 Part #004122 Rev 04 2010
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In addition to these stages of charge there are more settings you can access by moving the bottom slider bar.
After completion of the charge cycle the inverter will enter the
FLOAT STAGE
.
This setting reflects a voltage that the system can maintain, with a good state of
charge, for a long period. If the generator continues to run passed the absorption
or equalise stage for any reason, such as maintaining a high load, the inverter
will keep the batteries at the float stage voltage – not exceeding the Current set –
until the generator is shut off. In situations where a generator or the mains voltage
will be present for long periods (ie 24 hours) the inverter will adopt the Long Term
Voltage limit to maintain a good state of charge but not over stress the batteries.
THE EQUALISE STAGE
is not employed every time you charge your batteries
but is a periodic charge process that raises the battery voltage above the normal
voltage settings to a point where the batteries will, essentially be in a state of
overcharge. This is necessary to overcome any variations in voltage between
individual cells that occur naturally in a battery bank that is cycled between load
and charge cycles. These variations can cause a drop in performance in the
pack and must be “equalised”. In flooded cells this process is sometimes called
“gassing”, that is when the batteries sound as if they are lightly boiling. In flooded
cells this bubbling helps to circulate the electrolyte fluid within the cells.
The Equalise stage will raise battery voltage to the equalise voltage level and
maintain this voltage for the equalise time. The the equalise current will not be
exceeded.
All batteries require different charging voltages when the battery temperature
is higher or lower than the battery manufacturer’s specified temperature. Most
manufacturers use 25
°
C as the point on which they base their charge voltages.
As the temperature of the batteries falls below or rises above this point the
batteries will need to be charged at higher or lower voltages. This is called
temperature compensation. If the manufacturer of your batteries specifies
different temperature compensation than those used normally by the SP PRO
then those parameters can be changed in the
BATTERY TEMPERATURE
COMPENSATION
settings
.
