Product Specifications

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Product Description

20A 12V/24V Solar Controller Light+ 1-15h Timer Control S20I

S10I-10A / S20I-20A / S30I-30A

Y-SOLAR S20I solar controller is for off-grid solar system,especially in solar lighting system and protects the battery from being over charged by the solar module and over dischargerged by the loads.The charging process has been optimized for long battery life and improved system performance.

Specification

Main Features

12/24V automatic recognition

High efficient Series PWM charging, increase the battery lifetime and improve the solar system performance.

Use MOSFET as electronic switch, without any mechanical switch

Widely used, automatically recognize day/night.

Digital LED menu, only one key solve all setting simply

Intelligent timer function with 1-15 hours option

Unique dual timer function, enhance the flexibility of street light system.

Gel, Sealed and Flooded battery type option.

Adopt temperature compensation, correct the charging and discharging parameters automatically and improve the battery lifetime.

Electronic protection: Overheating, over charging, over discharging,

overload, and short circuit.

Reverse protection: any combination of solar module and battery.

Application Method

Solar Home System           Solar Street Light System 

Attention

Connection Order:Connect the battery with the controller.

Connect the solar panel with the controller.

Connect the load with the controller or inverter.

Disconnection order:

Disconnect the solar panel.

Disconnect the battery.

Disconnect the load.

Precautions

please make sure connect your inverter with your battery

Please avoid to install in the following environments wet,dusty places or places with flammable and explosive gases.

Install the controller at the vertical plane.

General  Pakage

Instructions

Features:

12/24V automatic recognitionHigh efficient Series PWM charging, increase the battery lifetime and improve the solar system performance.Use MOSFET as electronic switch, without any mechanical switchWidely used, automatically recognize day/night.Digital LED menu, only one key solve all setting simplyIntelligent timer function with 1-15 hours optionUnique dual timer function, enhance the flexibility of street light system.Gel, Sealed and Flooded battery type option.Adopt temperature compensation, correct the charging,discharge parameters automatically, improve the battery lifetime.Electronic protection: Overheating, over charging, over discharging,overload, and short circuit.Reverse protection: any combination of solar module and battery.

Settable:

Float charging voltage;

Low voltage reconnect voltage;

Low voltage discounnect voltage;

Load start-up delay;

Optical sensitivity.

Four load working modes:

Pure lighting control

lighting control &timing control,

hand operation (Charge and discharge default)

debug mode.

Settings

. Load Control Settings

1. Dusk to Dawn

When solar module voltage goes below the point of NTTV (Night Time Threshold Voltage) at sunset, 

the controller will recognize the starting voltage and turn on the load after 10 minutes delay. When 

solar module voltage goes above point of DTTV (Day Time Threshold Voltage), the solar controller 

will recognize the starting voltage and turn off the load after 10 minutes delay.

2. Light ON + Timer

When solar module voltage goes below the point of NTTV (Night Time Threshold Voltage) at sunset; 

the solar controller will recognize the starting voltage and turn on the load after 10 minutes delay. The 

load will be on for several hours which users set through LED digital tube. The controller has dual timer

function. Please refer to table 4-5-Load Work Mode Setting II.

3. Test mode

This mode is the same as Dusk to Dawn. But there is no 10 minutes delay when controller recognizes 

the starting voltage. When below the starting voltage, the controller will turn on the load, if higher, it will

turn off load.

The test mode makes it easy to check the system installation.

4. ON/OFF mode

This mode is to turn ON and OFF the load by manual.

A.Load Work Mode Setting

When the led digital tube is not display, Press the setting button "Key" more than 5 seconds , 

and keep on press it once more,led digital tube will be changed once among

Images:

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Packaging and Shipping

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Packaging details

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