4
2) Check the diameter of the connecting cable is adequate for the requirements
of the current. Wire which is too small will result in voltage loss and poor
system performance. It may ultimately result in fire as the wire overheats
and breaks down. ROC-SOLID suggest the following minimum wires cross
sectional sizes:
Controller connections should be made in the following order:
1) Battery
2) Solar Cell
3) Load (ensure the load is “off” to minimize arcing on connection)
(Note: disconnection must be made in the reverse order)
Features
The ROC-SOLID SC series solar controllers use a microprocessor to provide
SOC (state of Charge) management functions, which in turn controls the charge
current using PWM technology and controls the supply of power to the load(s)
according to the voltage and capacity of battery. The controllers have the
following functions:
Standard Features:
∗ LCD display shows the battery volts, charging and load current alternately.
∗ Data logging of charge and discharge currents.
∗ Automatic system voltage sensing for 12/24V application
∗ 48V units are for 48v systems only.
∗ Default load off voltages are 12V system 10V off, 24V system 20V off, 48V
system 40V off.
∗ Controller can simultaneously charge battery and supply load
∗ Reverse Polarity Protection for Solar panels.
∗ Lightning surge protection
Battery control functions:
∗ On completion of charging, maintain the battery on “float” (user settable)
∗ Prevent the battery from over-charging.
∗ Prevent the battery from over-discharging.
∗ Reverse Polarity Protection for Battery.
∗ Automatic temperature compensation -3mV/degree C
Model Number Wire size
Model Number Wire size
SC-2420 3mm2
SC-4840 6mm2
SC-2440 4mm2
SC-4860 8mm2
sc-2460 6mm2
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