Section 5 - Samlexpower Evolution Series Owner's Manual

SECTION 4 |
i
INFO
Online Mode is suitable for installations where both Grid and Photovoltaic (PV) Solar Battery
Charging System are available. It is also desirable in areas where Grid / Utility Energy Rates
are very high and use of supplementary battery based photovoltaic power system is more cost
effective.
4.6.5.3 Option "2=Charger Only".
In Off-grid DC powered homes, for efficiency consideration, all lighting and other loads / appliances are normally
powered from batteries that are primarily charged through solar / wind power. Generator backup is used for
powering AC to DC battery charger for charging the batteries during extended periods of cloudy / no wind
conditions. To meet this requirement, the EVO
when AC input power is available within the programmed limits of voltage and frequency, charging will take place
and AC input will be passed through to the load(s). The unit will NOT transfer to Inverting Mode if AC input fails
or is outside the programmed limits of voltage and frequency [For details, see Section 4.4.2.13.3 of EVO-RC-PLUS
Remote Control Manual].
4.7 TEMPERATURE SENSOR FOR BATTERY CHARGING
Battery Temperature Sensor Model EVO-BCTS [Fig 2.5(a)] has been provided to ensure optimum charging of Lead
Acid/ Nickel-Zinc (Ni-Zn) batteries by modifying the charging voltages based on temperature if the battery sees very
wide temperature swings. See Section 5.5 for details. Temperature compensation can be programmed with the
help of optional Remote Control EVO-RC [See Section 4.4.2.5 of EVO-RC-PLUS Remote Control Manual]. Range is
-3 to -4 mv/ °C/cell (Default is -4 mv/ °C/cell). Without temperature compensation, the battery life is likely to be
drastically reduced because the battery will be undercharged during cold conditions (will build up sulfation) or will
be overcharged during hot conditions (will boil and lose excessive water). See Section 1.4.5 for more details on
temperature compensation.
!
CAUTION!
1. Lithium Ion Battery charging does not require temperature compensation. Hence, do not use EVO-BCTS
Temperature Sensor when charging Lithium Ion Batteries.
2. Automatic temperature compensation using EVO-BCTS Temperature Sensor is designed for Lead Acid Batteries
based on programming parameter "COMPENSATE" [See Section 4.4.2.5 in EVO-RC-PLUS Remote Control
Manual]. When charging Nickel-Zinc (Ni-Zn) batteries, ensure that the value of programming parameter
"COMPENSATE" is set based on approximate linear compensation for the particular Ni-Zn battery.
General Description & Principles of Operation
can be programmed to operate as a battery charger ONLY i.e.
TM
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