EPSOLAR SS1024 / SS1524 / SS2024 —— Moisture proof solar controller INSTRUCTION MANUAL Thank you very much for selecting our product! This manual offers important information and suggestions with respect to installation, use and troubleshooting, etc. Please read this manual carefully before using the product and pay attention to the safety recommendations in it.
SeaStar SS1024 / SS1524 / SS2024 —— Moisture proof solar controller Installation and Operation Manual Specification Summary Nominal system voltage 12 / 24VDC* Maximum PV input voltage 50V Nominal charge / discharge current SS1024 10A SS1524 15A SS2024 20A * The controller will recognize the system rated voltage when start up. If the battery voltage is lower than 18V, it will recognize the system as 12V. If the battery voltage is greater than 18V, it will recognize the system as 24V.
Contents 1 Important Safety Information ................................................... 1 2 General Information ................................................................. 2 2.1 Product Overview ........................................................ 2 2.2 Product Features .......................................................... 3 3 Installation Instructions ............................................................ 4 3.1 General Installation ..................................................
1 Important Safety Information Save These Instructions This manual contains important safety, installation and operating instructions. The following symbols are used throughout this manual to indicate potentially dangerous conditions or mark important safety instructions，please take care when meeting these symbols. WARNING: Indicates a potentially dangerous condition. Use extreme caution when performing this task. CAUTION: Indicates a critical procedure for safe and Proper operation of the controller.
2 General Information 2.1 Product Overview Thank you for selecting SeaStar series Moisture proof solar controller that adopts the most advanced digital technique and operates fully automatically. The Pulse Width Modulation (PWM) battery charging can greatly increase the lifetime of battery. It has various unique functions and quite easy to use, such as: With aluminum case, circuit board encapsulation.
2.2 Product Features 3 2 4 5 1 6 7 8 9 Figure 2-1 SeaStar characteristics 1 – Temperature Sensor Measure ambient temperature and make temperature compensation for charging and discharging.
5 – Load status indicator Display the load status. 6 – Setting button Control the load ON / OFF and select the battery type. 7 – Solar Module Terminals Connect solar modules. 8 – Battery Terminals Connect batteries. 9 – Load Terminals Connect loads. 3 Installation Instructions 3.1 General Installation Notes Read through the entire installation section first before beginning installation. Be very careful when working with batteries. Wear eye protection.
3.2 Mounting NOTE: When mounting the controller, ensure free air through the controller heat sink fins. There should be at least 6 inches (150 mm) of clearance above and below the controller to allow for cooling. If mounted in an enclosure, ventilation is highly recommended. WARNING: Risk of explosion! Never install the controller in a sealed enclose with flooded batteries! Do not install in a confined area where battery gassed can accumulate.
Step 3: Mark Holes Use a pencil or pen to mark the four (4) mounting hole locations on the mounting surface. Step 4: Drill Holes Remove the controller and drill 4.5mm holes in the marked locations. Step 5: Secure Controller Place the controller on the surface and align the mounting holes with the drilled holes in step 4. Secure the controller in place using the mounting screws. 3.3 Wiring NOTE: A recommended connection order has been provided for maximum safety during installation.
Fuse Battery Figure 3-2 Battery connecting Before battery is connected, make sure that battery voltage is greater than 6V so as to start up the controller. If system is 24V, make sure battery voltage is not less than 18V. System voltage can only be automatically recognized when controller start up for the first time. When install fuse, make sure that the biggest distance between the fuse holder and the positive terminal of battery is 150mm.Do not insert a fuse at this time.
Connect the positive (+) and negative (-) of loads to controller load terminals as shown in Figure 3-3. An in-line fuse holder should be wired in series in the load positive (+) or negative (-) wire as show in Figure 3-3. Do not insert a fuse at this time. If wiring the load connection to a load distribution panel, each load circuit should be fused separately. The total load draw should not exceed the load rated current of controller.
Step 4: Confirm Wiring Double-check the wiring in step1 through 3. Confirm correct polarity at each connection. Verify that all six terminals are tightened. Solar Module Load Fuse Fuse Battery Figure 3-5 System wiring review Step 5: Install Fuse Install a suitable fuse in each fuse holder in the following order: 1. Battery circuit 2. Load circuit Step 6: Confirm power on When battery power is applied and the controller starts up, the battery LED indicator will be green.
4 Operation 4.1 PWM Technology (Series Pulse Width Modulation) The controller adopts the advanced series pulse width modulation. With range of 0-100%, it can charge the battery quickly and stably under any condition of solar photovoltaic system. The operating principle of PWM charging mode is as follows: The battery is firstly charged with pulse current and recharged after it stops charging for a while. It is repeated in this way for several times till the battery is fully charged.
· Boost Charge When the battery has recharged to the Boost voltage setpoint, constant-voltage regulation is used to prevent heating and excessive battery gassing. The Boost stage remains 120 minutes and then goes to Float Charge. · Float Charge After the battery is fully charged in Boost voltage stage, the controller reduces the battery voltage to Float voltage set point.
NOTE: Equipment damage! Over-charging and excessive gas precipitation may damage the battery plates and activate material shedding on them. Too high an equalizing charge or for too long may cause damage. Please carefully review the specific requirements of the battery used in the system. Certain types of batteries benefit from periodic equalizing charge, which can stir the electrolyte, balance battery voltage and complete chemical reaction.
Charging Status indicator GREEN ON whenever sunlight is available for battery charging, GREEN FAST FLASHING when system over voltage. Please refer to section 5 for troubleshooting.
Load status indicator: When the load current is 1.25times of rated current for 60 seconds, or the load current is 1.5 times of rated current for 5 seconds (overload); or load current is more than 3.5 times of rated current(Short Circuit) ,the load status indictor will be red and flashing. Please refer to section 5 for trouble shooting.
4.4 Setting Operation Sealed Setting indicator Load Status LED indicator Gel Setting indicator Flooded Setting Indicator Setting button Figure 4-3 Setting operation indicating ·Load Work Mode Setting When the controller is powered on, press the setting button to control the load output. Press the button once, the ON/OFF status will be changed corresponding. ·Battery Type Setting Press the setting button for more than 5 seconds, the original battery type indicator will be flashing.
5 Protection, Troubleshooting and Maintenance 5.1 Protection · PV Array Short Circuit If PV array short circuit occurs, clear it to resume normal operation. · Load Overload If the load current exceeds the maximum load current rating, the controller will disconnect the load. The greater the overload, the faster the load will be disconnected. A small overload could take a few minutes to disconnect. Overloading must be cleared up through reapply power or pressing the setting button.
5.2 Troubleshooting Trouble Shooting Table 5-1 Faults Possible reasons Troubleshooting Charging LED indicator off PV Check that PV and battery during daytime when sunshine array wire falls on PV modules properly. disconnection correct and tight. Green charging LED indicator Battery voltage Check if battery voltage fast flashing higher than over over high.
Load status indictor red and Over load or short Overload: reduce the load flashing circuit and press the button once, the controller will resume to work after 3s; Short circuit: when the first short-circuit occurs, the controller will automatically resume to work after 10s; when a second short-circuit occurs, press the button, the controller will resume to work after 3s.
5.3 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. Check all the naked wires to make sure insulation is not damaged for serious solarization, frictional wear, dryness, insects or rats etc.
6 Warranty The SeaStar charge controller is warranted to be free from defects for a period of Two (2) years 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 Operation Manual to be certain that there is a problem with the controller. Return the defective product to us with shipping charges prepaid if problem cannot be solved. Provide proof of date and place of purchase.
7 Technical specifications Electrical Parameters Table 7-1 Description Parameter Nominal System Voltage 12 / 24VDC Auto work Battery Voltage Range 6-36V SS1024 SS1524 SS2024 Rated Battery Current 10A 15A 20A Charge Circuit Voltage Drop ≤0.26V Discharge Circuit Voltage Drop ≤0.
Battery Voltage Parameters (temperature at 25℃) Table 7-3 Charging Parameters Battery charging setting Gel Sealed Flooded Over Voltage Disconnect Voltage 16V; x2/24V 16V; x2/24V 16V; x2/24V Charging Limit Voltage 15.5V;x2/24V 15.5V;x2/24V 15.5V;x2/24V Equalize Charging Voltage ------- 14.6V;x2/24V 14.8V;x2/24V Boost Charging Voltage 14.2V;x2/24V 14.4V;x2/24V 14.6V;x2/24V Float Charging Voltage 13.8V;x2/24V 13.8V;x2/24V 13.
Environmental parameters Table 7-4 Environmental parameters Parameter Working temperature -35℃ to +55℃ Storage temperature -35℃to +80℃ SS1024 Mechanical parameters Table 7-5 Mechanical Parameter Parameter Overall dimension 132(5.2)x70.5(2.77)x30(1.18) mm/inches Mounting dimension 122(4.8) x 40(1.57) mm/inches Mounting hole size Φ4.5 Terminal 6mm2 Net weight 0.15kg SS1524 & SS2024 Mechanical Parameters Table 7-6 Mechanical Parameter Overall dimension Parameter 137(5.4)x86(3.39)x48(1.
40(1.57) 70.5(2.77) 30(1.18) mm(inches) 122(4.8) 132(5.2) SS1024 Dimensions 50(1.97) 127(5) 137(5.4) Figure2 SS1524 & SS2024 Dimensions 86(3.39) 48(1.
BEIJING EPSOLAR TECHNOLOGY CO., LTD. Tel：010-82894112 / 82894962 Fax：010-82894882 E-mail：info@epsolarpv.com Website: www.epsolarpv.
