LED Driver

1.CURRENT: 3A

2.VOLTAGE:12V

3.WITH TIMERR(5,6,7,8,10,12)hr.

4.WORKING WITH ELECTRONIC CONTROL CIRCUIT

TURNING ON-OFF DURING DAY AND NIGHT

5.OPERATING TEMP.:40-60 °C

6.HUMIDITY:10-95%

7.LONG LIFE

WRI-SAC01

Street Lamps controller

1. Introduction

WRI-SAC01 Street Lamp Controller is specially designed and developed for solar street lamp.

The controller has the following functions:

Controlling the process of solar cell charges up storage battery and process of storage battery discharges the loads, ray-control starter, and time switch. Its main features is the adoption of SOC control methods to control the whole discharge process of storage battery close-loop, which makes loads adapt with the electrical conditions of storage battery. Therefore, through using controller, it avoids over discharge of storage battery on the basis of the reliability and safety of the system, which effectively lengthen the life span of storage battery

2. Main Function

Ray-control start-up, time switch ( 4, 6, 8, 10, 12 hours )

Manual start-up, turn-off

PWM charge-up control

Auto control of SOC discharge process of storage battery

Over discharge protection of storage battery Anti bounce-charge control

Anti bounce-connect control

Over current protection

Manual process restoration

3 . Performance Index

Open circuit voltage of solar cell: <23V(12V cell board ) <46V(24V cell board )

Solar energy charge-up current: ≤10 A

Voltage of storage battery: 12V or 24V (Decided by the system voltage, set-up thread line)

Range of output voltage: 12V system:10.8V—14.5V) <24V system: 21.6V—29.0>

4. Control method and Description

Controller adopts ray-control technology to turn on lights, time switch to turn off lights.Timer is controlled by thread take-up. The optional lights-on periods are available: 4, 6,8, 10, 12 hours.

J2 is the wire jump: its function is set for 12V or 24v system

12V ■■○24V ○■■

J3 is the wire jump: its function is set for single lamp or couple lamps

Single light ■■○ couple lights ○ ■

S2 is the dial machine, different dial number decides the different timing, view the
following chart:

5. Main features
The combination of timer and SOC discharge control
The controller has functions of street lamps light-on timing set and residual capacity
(SOC) discharge process control, which insures the lights on every night. So it can make
up the weakness when it is continually cloudy sky, the lights are not on due to the over
discharge of storage battary. It improves the reliability of lamps greatly.

Long life span
With the use of SOC discharge process control, it insures the storage battery under the
condition of floating charge-up; namely, the residual capacity of storage battery is not
less than 40% (Depth of discharge not more than 60%). So it lengthens greatly the life
span of storage battery.

company’s solar street light and that of other companies; it can greatly
stability of the system, and availably lengthen the lifespan of the storag

6. Instruction and steps of the installation
The sketch map of the connections:

7. The steps of installation:

1. Open the little strip of the board, and set the system voltage, single lamp/couple lamps,
the mode of timing according to the above mentioned control methods and description.

2. Check whether the fuse is installed well or not.

3. Connect the anode and cathode of storage battery. After connected, the green LED
lamp is shining, which means the controller is working well.

4. Then connect the anode and cathode of solar battery and loads (lights) separately.

5. Cover the small strip at the down end of the panel. The installation is completed.

Especially note: when connecting, please never let the burrs of lead wire

exposed, and be sure that the anode and the cathode don’t in short circuit.

8. Disposal of the controller’s board and instructions of the terminal block:
1. There are three LED lamps on the top right corner of the board
The “over charge” LED lamp is the yellow one, when the lamp is on; it means the
storage battery is at the state of over charge.
The “at work” LED lamp is the green one, when this lamp is flashing; it means the
controller is at work.
The “over discharge” LED lamp is the red one, when it is on; it means the controller is
at the state of over discharge.
2 . Definitions of the 8 terminal blocks at the down position on the board are as follows:

The two terminal blocks on the most left are to connect with the anode and cathode of
the solar panel
The third and forth ones connect with the anode and cathode of the storage battery.
The fifth and the sixth ones are for the inverter or DC lamp.
The last two extremes are connected to inverter or DC lamp.

3. The “manual switch” on the top right is for exhibition, or on holidays to turn on the light by
hand when not necessary to wait until dark.

4. The “restoration key” on right down is for the function of restoration, which is used to
check the whole system.

9. Usage and brief protections
1. Read the introduction and the guidance of installation, and follow the steps to connect
the storage battery, solar battery and the load.

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