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GAMMA 3.0 Solar Charge Controller With USB Power
Thank you for choosing our product!
This manual offers important information and suggestions about the installation, use
and troubleshooting, etc. Please read this manual carefully before using the product
and pay attention to the safety recommendations within.
www.solarpower-mart.com
Harvest the Sun power!
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Table of Contents
Summary of Contents for Solarpower mart GAMMA 3.0 Solar Charge Controller With USB Power
- Page 1 GAMMA 3.0 Solar Charge Controller With USB Power Thank you for choosing our product! This manual offers important information and suggestions about the installation, use and troubleshooting, etc. Please read this manual carefully before using the product and pay attention to the safety recommendations within.
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Page 2: Technical Information
USER MANUAL GAMMA 3.0 3A - 10A USB POWER SOLAR CHARGE CONTROLLER RATINGS (Automatic 12V and 24V) NOTES: For use with solar panels and battery only TECHNICAL INFORMATION Auto 12 / 24 Volt DC Nominal System Voltage 12 / 24VDC Maximum PV Input Voltage Nominal Charge / Discharge Current 3A, 5A and 10A... -
Page 3: Notes, Cautions And Warnings
Notes, Cautions and Warnings This manual contains important safety, installation and operating instructions. following symbols are used throughout this manual to indicate potentially dangerous conditions or mark important safety instructions, please take note of them. WARNING: Indicates a potentially dangerous condition. Use extreme caution when performing this task. -
Page 4: General Information
General Information Thank you for selecting GAMMA 3.0 series solar controller that adopts the most advanced digital techniques programming and is fully automatic. The Pulse Width Modulation (PWM) battery charging can greatly increase the lifetime of the battery. It has various unique functions, such as: ... -
Page 5: Product Features
Product Features 1. PV (Solar Panel) Charging Status LED indicator A LED indicator that shows charging status and also indicates warning signal when solar array connect wrongly. 2. Battery Status LED Indicator A LED indicator that shows battery status and other crucial information. 3. - Page 6 9. USB Power Socket Connect to USB devices (5VDC, 1.2A). www.solarpower-mart.com Harvest the Sun power!
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Page 7: Mounting Requirements
Installation General Installation Notes: Read through the entire installation section first before beginning installation. Be careful when working with batteries. Wear eye protection if necessary. Have fresh water available to wash and clean any contact with battery acid. ... - Page 8 Step 1: Choose Mounting Location Place the controller on a vertical surface protected from direct sunlight, high temperature, and moisture. Provide good ventilation. Step 2: Check for clearance Place the controller at the location where it will be mounted. Verify that there is sufficient room to run the wires and that there is sufficient room above and below the controller for air flow.
- Page 9 Wiring NOTE: A recommended connection order (step by step) has been created to provide maximum safety during installation. NOTE: The controller is a common positive ground controller. CAUTION: Do not connect the loads with surge power exceeding the rating of the controller.
- Page 10 Step1: Battery Wiring WARNING: Risk of explosion or fire! Never connect the positive (+) and negative (-) battery cables. Before battery is connected, make sure that the battery voltage is greater than 6V to start up the controller. If the system is 24V, make sure battery voltage is not less than 18V.
- Page 11 Step 2: Load Wiring The controller can be connected to electrical equipments such as lights, pumps, and motors. The controller draws power from the battery. USB 5VDC , 1.2A Connect the positive (+) and negative (-) controller load terminals as shown in above Figure.
- Page 12 Step 3: Solar wiring WARNING: Risk of electric shock! Be caution when handling solar panel wiring. The high voltage from solar panel’ s can induce electric shock and injury. Keep the solar panel away from sunlight before installing the solar wiring. The controller cans accept 12V or 24V nominal off-grid solar panel(s).
- Page 13 Step 4: Confirm Wiring Double-check the system wiring from step 1 through 3. Confirm correct polarity at each connection. Make sure all six terminals are tightened. Step 5: Install Fuse/Turn on MCB Install a suitable fuse in each fuse holder in the following order: 1.
- Page 14 ADVANCE CHARGING TECHNOLOGY PWM Technology (Series Pulse Width Modulation) The controller adopts Advanced Series Pulse Width Modulation (PWM) technology. PWM is the most effective means to achieve constant voltage battery charging by switching the solar system controller’ s power devices. When in PWM regulation, the current from the solar array tapers according to the battery’...
- Page 15 Battery Charge Information Figure: PWM charging mode Bulk Charge In this stage, the battery voltage has not yet reached the boost voltage and 100% of available solar power is used to charge the battery. Boost Charge/ PWM Regulation When the battery has been charged to boost voltage point, constant-voltage regulation is used to prevent over-heating and excessive battery gas releases.
- Page 16 capacity. In float stage, loads can continue to draw power from the battery. In the event that the system load(s) exceed the solar charge current, the controller will no longer be able to maintain the battery at the float set point. Should the battery voltage remains below the boost set point, the controller will exit float stage and return to bulk charge.
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Page 17: Led Indication
LED INDICATION Color Indicator Status PV Charging Status On Solid Normal LED Indicator Slowly Flashing In charging Fast Flashing Overload or System Error No charge Battery Status LED On Solid Normal Indicator Slowly Flashing Battery weak & low voltage Fast Flashing Battery over discharged Battery Not connected... - Page 18 OVERLOADING AND SHORT CIRCUIT PROTECTION Load status Times of Rated Time of duration Current Overload 1.02 ~ 1.05 1.05 ~ 1.25 1.25 ~ 1.35 1.35 ~ 1.5 1.5 ~ 2 2 ~ 3 Short circuit 3 ~ 4.2 0.005 ≥4.2 0.001 CONTROLLER OVERHEATING PROTECTION AND SYSTEM VOLTAGE ERROR INDICATION...
- Page 19 DC Load Mode Setting This mode is to turn ON and OFF the load by manual setting (Please refer to Load Programming Mode). For instance, manual on & off with Program setting to 5. ( 5 with a dot). For continue on the DC load (24 hours by 7, 365 days), please program to 6. ( 6 with a dot).
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Page 20: Load Programming Mode
Load Program Mode Setting Setting Operation Indicator Press the SETUP button once and the display LED indicators will show the program modes. When Timer setting indicator is on, press the setting button for 5 seconds till the LED digital display flashes. Then press the setting button till the desired number appears according to the following table. - Page 21 Load will be on for 11 hours (with 10 minutes delay) after dusk. 1. (1 with a dot) Load will be on for 12 hours (with 10 minutes delay) after dusk. 2. (2 with a dot) Load will be on for 13 hours (with 10 minutes delay) after dusk. 3.
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Page 22: Troubleshooting
TROUBLESHOOTING Protection P.V Array Short Circuit If PV array short circuit occurs, clear it to resume normal charge automatically. Load Overload If the load current exceeds the rated current of controller（≥1.05 times rated discharge current), the controller will disconnect the load. Overloading must be cleared up, then pressing the switch button. - Page 23 Faults Possible reasons Troubleshooting PV Charging LED PV array disconnection Check that PV and battery wire indicator off during connections are correct and daytime when sunshine tight. falls on PV modules properly. Battery LED indicators Battery under voltage Load output is normal. slow flashing Charging LED indicator will return to normal automatically...
- Page 24 Notes: No LED indicator. Measure battery voltage with multimeter. Min. 6V can start up the controller. Notes: No charging status LED indicator with normal connection. Measure the input voltage of solar module, the input voltage must be higher than battery voltage! www.solarpower-mart.com Harvest the Sun power!
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Page 25: Maintenance
MAINTENANCE The following inspections and maintenance tasks are recommended at least two times per year for best controller performance. Check that the controller is securely mounted in a clean and dry environment. Check that the air flow and ventilation around the controller is not blocked. Clear all dirt or fragments on the heat sink. -
Page 26: Technical Specification
TECHNICAL SPECIFICATION Electrical Parameters Description Parameter Nominal System Voltage 12 /24VDC Max. PV input voltage Max. Battery Terminal Voltage Rated Battery Current ≤0.28V Charge Circuit Voltage Drop ≤0.20V Discharge Circuit Voltage Drop ≤8.4mA/12V ; Self-consumption ≤7. 8mA/24V Temperature compensation coefficient -3mV/℃... - Page 27 Boost Reconnect Charging 13.2V 13.2V 13.2V Consult US Voltage Low Voltage Reconnect 12.6V 12.6V 12.6V Consult US Voltage Under Voltage Warning 12.2V 12.2V 12.2V Consult US Reconnect Voltage Under Voltage Warning 12.0V 12.0V 12.0V Consult US Voltage Low Voltage Disconnect 11.1V 11.1V 11.1V...
- Page 28 Mechanical Parameters Mechanical Parameter Parameter Overall dimension 124.7 x 69.4 x 34 mm Mounting dimension 112.4 x 54.0 mm Φ3.6 Mounting hole size Terminal 6mm2 Net weight 0.16kg www.solarpower-mart.com Harvest the Sun power!
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Page 29: Warranty
WARRANTY The GAMMA 3.0 charge controller is warranted to be free from defects for a period of ONE (1) year from the date of shipment to the original end user. We will, at its option, repair or replace any such defective products. Claim procedure: Before requesting warranty service, check the User Manual to be certain that there is a problem with the controller. - Page 30 End of Page www.solarpower-mart.com Harvest the Sun power!
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