solar charge controller for solar street light

Phenomenon

Causes and solutions

When there is sun rays irradiating at solar panels LED indicator (1) don't work;

Check the if connection of solar panels and this controller is correct like if there is reverse connection of anode and cathode even if there is disconnect of terminals;

Solar panel indicator (1) flashes fast;

System is in the stage of over voltage; there is disconnection between battery and solar panels even final loads , check if the charge circle is in right connection.

Load indicator (3) working normally but there is no output;

Check if the connection of loads and controller is in the right method

Battery indicator turns red and there is no output-loads don't work;

Battery is in the stage of over charge , charge the battery again to reuse

Model

SDL-SF60W constant solar charge controller

System voltage

12V; 24V;

Power output

12V≤30W 24V≤60W

Voltage output

(Vin+5V)~60V

Voltage distortion range

+/-600mV

Output current

≤1.2A

Current output accuracy

<2%

Normal efficiency

90%

Normal working temperature range

-30°C— +65°C

No load working current consumption

≤10 mA

Inner charge circuit voltage drop

≤ 0.26V

Inner discharge circuit voltage drop

≤ 0.15V

Over voltage protection

17V,×2/24V;

Boost charge voltage

14.6V;×2/24V; (10 minutes duration and only occurs when over-discharge happens)

Direct charge voltage

14.4V;×2/24V; (10min duration)

Float charge voltage

13.6V;×2/24V;(Charging Voltage duration will last until the voltage turn to the returned voltage point )

Returned voltage after charging

13.2v; ×2/24V;

Temperature compensation

-5mv/°C;

Under voltage

12.0V; ×2/24V;

Over discharge voltage

11.1V-; ×2/24V;

Returned voltage point after charging from last over-discharge

12.6V;×2/24V;

Working principle

PWM charging mode