10
TECHNICAL INFORMATION
Max PV Array Size
180W-12V battery, 360W-24V battery
PV Array Voltage
12V or 24V nominal only
Max. Input Current
15ADC
Max. Input Open Circuit Voltage (OCV)
50VDC
Max. Load Current
15ADC
Charge Voltage(Bulk)
13.8V-14.8V/27.6V-29.6V
Charge Voltage(Float)
13.0V-14.2V/26.0V-28.4V
Deep Discharge Protection Voltage
11.0/22.0VDC ±2%
Output Voltage
12/24VDC
Typical Idle Consumption
<
50mADC
Operating temperature
-20°C/+50°C
Charging Curve
Bulk
Absorption
Float
Bulk:
This is the first stage where the battery is in a
low charge state, where it receives the majority of its
charge. During this stage the battery brought to
about 85-95% capacity getting 100% of the
available solar power.
Absorption:
In this stage the controller charge at a constant voltage and the battery is allowed to
absorb current at a constant voltage. The constant voltage regulation prevents overheating and
battery gassing; this stage terminates when the battery current is below 3 Amp or after 3 hours
entered in absorption mode.
Float (Maintenance)::::
After the battery is fully charged, the controller reduces the battery voltage to
a float charge, providing minimal current.
Protection functions
Overcharge protection
Deep discharge protection
Battery under-voltage protection
Solar panel reverse current protection
The following faults will not destroy the controller. After correcting the fault, the device will continue
to operate normally:
Overcharge protection
Deep discharge protection
Reverse polarity protection of load, panel and battery
Automatic electronic fuse
Short circuit protection of load and panel
Over voltage protection for solar panel input and battery voltage
Open circuit protection without battery
Reverse current protection at night
Overload protection
