Light + time control solar street light controller

1. Control: Micro Controller Unit utilizing dedicated software for precise control.

2. Charging mode: Pulse Width Modulated control, allows for   high efficiency boost, recovery and float charging. Temperature compensation ensures that these parameters are adjusted for maximum battery condition and hence, prolonged battery life.

3. High accuracy discharging control:

Over-discharging control voltage modified by the battery discharging rate curve.

4. Circuit protection: protection against overload, short circuit and reverse connection,

Built in Transient Voltage Suppression protects against lightning. Reverse current leakage through PV

panel is blocked. Batteries are prevented from over-charging or discharging.

5. LED indication on system condition:

Indicating  LEDs,  monitor  battery  charging  levels  as  well  as  battery  state.  LED monitoring  of  load conditions such as over load and short circuit as well as load on/off, are also provided.

Digital LED display number equal to time setting

6. Design standard:   Operating temperature range from -35 to +50 deg C.

7. No adjustable hardware:  Controller  accuracy,  stability  and  reliability  is  assured  by  the  use  of  flash  memory  for all  control parameters and set-points.

8. Operation: easy to operate, robust in design.

 

Specification:

Note: All printed Voltages are only for 12V system. Double voltages for 24 Volt systems.

Type	SDRC-10IP
Rated charge current	10Amps
Rated load current	10Amps
Work voltage	12/24V;
Over load, short circuit protection	If the load current exceeds the rated current by 1.25 times for 60 seconds or by 1.5 times for 5 seconds. Short circuit protection will act if 3 times rated current happens;
Self-consumption current	≤ 6 mA
Charge circuit voltage drop	≤0.26V
Load circuit voltage drop	≤0.15V
Over voltage protection	17V (2 times for 24V system)
Work temperature	Industry stage: -35°C to +55°C;
Boost charge voltage	14.6V (keep 10 min, 2 times for 24V system, only used when over-discharged last time)
Direct charge voltage	14.4V (2 times for 24V system)
Float charge voltage	13.6V (2 times for 24V system)
charge return voltage	13.2V (2 times for 24V system)
Temperature compensation	'-5mv/°C/2V (Boost charge, Direct charge, Float charge, charge return voltage);
Lower voltage indicate	12.0V (2 times for 24V system)
Over discharge voltage	1.1V(no load, 2 times for 24V system, modified voltage by discharge rate of battery)
Over discharge return voltage	12.6V (2 times for 24V system)
Control mode	PWM charge mode; modified discharge voltage by the discharge rate
Certification	CE, RoHS
LED indications	green-yellow-red battery levels for voltage warning and disconnected
Battery type	Lead acid (GEL, flooded, AGM)