Transcript
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Multifunctional solar charge controller CPT series instruction manual
Suitable for lead acid battery (12V/ 24V auto work) Model: CPT-LA05, CPT-LA10, CPT-LA15 Suitable for 3 series lithium battery, DC output voltage 11-12.6V. Model: CPT-Li305, CPT-Li310, CPT-Li315 Suitable for 4 series lithium battery, DC output voltage step-down Model: CPT-Li405, CPT-Li410, CPT-Li415
Description of product model: CPT-Li 4 05 05 represents the maximum charge current 5A. Li4 represents 4 series lithium battery, Li3 represents 3 series lithium battery (this item of lead acid battery is empty) Li represents suitable for the lithium battery, and LA represents suitable for the lead-acid battery.
Note: the maximum discharge current is 2 times by the maximum charge current.
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Product Overview 1. Use single-chip microcomputer as the core of the whole control system, which makes the controller has the advantages of intelligent, strong adaptability, reliable function etc. 2. Use SMT chip production technology, industrial class chip, advanced technology, quality assurance. 3. Use industrial grade chip, it can work properly under environment such as cold, high temperature, humid. 4. Delicate shell design and compact circuit, the whole controller does not occupy too much space. 5. Use internal integration precision resistors and other components in order to improve the precision of controller parameters. 6. After the MPPT circuit of constant voltage and constant current, the solar panel charge for the battery when the voltage and the current is within the acceptable range , which can effectively prolong the lifespan of the battery;. 7. Maximum acceptable peak voltage of solar panel input is100V, flexible system configuration. 8. Adopts the innovative MPPT tracking technology, the highest conversion efficiency is up to 97.3%. 9. Intelligent MPPT special circuit, which can quickly scan the I-V curves of photovoltaic panels. 10. Automatically detect the battery state and choose the best way to charge the battery. 11. Use Vodasi MPPT version optimized design scheme, which can improve system efficiency and prolong the life span the battery. 12. Four stage of battery display, can intuitive understand of the working status of the controller. 13. Perfect safety protection, with over charging, over discharging, overload, short circuit and reverse polarity protection. 14. Compatible design, CPT series controller can choose the lead-acid battery or the lithium battery version. 15. A variety of load output (load output, DC12V, USB5V), can meet different demands of users.
Characteristic of MPPT Controller
The Graph below is the output characteristics of solar panels, the X axis is the output voltage, the Y axis is the output current; the blue line is the I-V curve, the green line is the P-V curve; It can show whether the solar panel is working in the maximum power output point. In the general controller, the solar panels and batteries are directly connected, the output voltage of the solar panel can be pulled down to the battery voltage, and it is far from the maximum power output, which makes the output efficiency of the solar panel is seriously low. The MPPT Controller adjust the battery charging current and voltage, which makes the output voltage of the solar panel is always near the maximum power output point, so as to ensure that the system can obtain the maximum output power from solar cells. For one thing, it can greatly improve the utilization efficiency of solar panels, for another it can effectively protect the battery.
Solar panel output characteristics Graph.
Excellent Output Characteristic
During the output of the controller, the range between the output recovery voltage and the cut-off output voltage is so wide. The DC12V and USB 5V adopt the stabilized voltage, our system adopts the SMPS stabilized voltage output mode. Compared with the traditional linear stabilized voltage output mode, our system has higher efficiency, lower heating power and stable performance. It provides precision stabilized power, at the same time ensures the output efficiency is more than 95%. It can also enhance the utilization efficiency of energy, reduce the heating power of the system and prolong the lifespan of battery. The internal circuit of the controller has 6 protection functions, they are IC overheating protection, IC built-in over-current protection, one-way recoverable fuse, total output fuse, intelligent over-current and short-circuit protection. All protections have self-recovery function. In the safe interval time, the system will automatically try to connect the output, once the external fault has been removed, the system will automatically resume normal output.
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Protection 1.
PV Reverse Polarity Protection
Fully protection against PV reverse polarity, do no damage to the controller. Correct the miswire to resume normal operation. 2.
Battery Reverse Polarity Protection
Battery reverse connection is the controller automatically in the state of the protection, actually the battery is no together with the system, which realize the maximize protection. 3.
Battery Over Charge Protection
When charging, once the battery voltage reaches the preset voltage, the controller will automatically turn into float charge, which keeps the battery in the best condition. 4.
Battery Over Discharge Protection
When discharging, once the battery voltage reaches the preset voltage, the controller will automatically cut off the discharging circuit, which avoids the overcharge damage of the battery. 5.
Output Over Current and Short Circuit Protection
The output includes the system output (the load output terminal) and the extensional output (the USB and DC output). When the extensional output (the USB and DC output) over current and short circuit occurs, the controller will protect itself. But it won’t affect the system output. After 3 seconds the controller will automatically return to work, if the troubleshooting has finished. When the load output terminal over current and short circuit occurs, the system output and the extensional output will enter into the protection state, then the load output indicator flickers. The controller would automatically cut-off all the output. After 10 seconds the controller will automatically return to work, if the troubleshooting has finished.
Installation Instructions 1. General Installation Notes
Read through the entire installation section first before beginning installation.
Never install the controller in a sealed enclose with flooded batteries! Do not install in a confined area where battery gassed can accumulate.
Be very careful when working with batteries. Wear eye protection. Have fresh water available to wash and clean any contact with battery acid.
Uses insulated tools and avoid placing metal objects near the batteries.
Locate the controller on a vertical surface protected from direct sun, high temperature, and water. And make sure good ventilation.
Loose power connections and/or corroded wires may result in resistive connections that melt wire insulation, burn surrounding materials, or even cause fire. Ensure tight connections and use cable clamps to secure cables and prevent them from swaying in mobile applications.
Don’t connect the loads with surge power exceeding the ratings of the controller.
Risk of explosion or fire! Connect the positive (+) and negative (-) of loads to controller load terminals. The load terminal may exist voltage, connect carefully to avoid short circuit.
Risk of electric shock! Exercise caution when handling solar wiring. The solar module(s) high voltage output can cause severe shock or injury. Be careful operation when installing solar wiring.
2．Mounting Step 1: Choose Mounting Location Locate the controller on a vertical surface protected from direct sun, high temperature, and water. And make sure good ventilation. Step 2: Check for clearance Place the controller in the location where it will be mounted. Verify that there is sufficient room to run wires and that there is sufficient room above and below the controller for air flow. 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 4mm holes in the marked locations.
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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. Wiring 1、To fasten the controller well，the size is listed as follows: The outside size: 192.1×91.6×30(mm) The hole size: 181.1×68.4×φ6 (mm) Wire range: 22-12AWG
2、Prepare the cable： To advise to use the cable with many copper strips, to assure the cable can meet the installation needs, keep it as short as possible so that to reduce extra power consumption. The cable should not bigger than 6A/mm2, to strip 5mm for the controller side. 3、Connection Order： battery cable→ load cable→ solar panel cable Connection of battery: Connect the battery cable to the output terminal of the controller, pay attention to the positive and negative charges protect from contrary connecting or short circuit (the positive and negative charges come together). If the connection is correct and the voltage of battery is higher than 6V, the controller can enter into self-test program, all the indicator lights flash once. Otherwise, check whether the cable connection is correct or the voltage of battery is too low. Connection of load: Press the Power switch to close the output and then connect the load cable to the output terminal of the controller, pay attention to the positive and negative protect from contrary connecting, Otherwise, it may burn the appliance. Connection of solar panel：Connect solar panel cable to the output terminal of the controller, pay attention to the positive and negative charges protect from contrary connecting. If the solar panel has abundant sunshine, the charge indicator will be ON. Otherwise, check the cable connection.
Funtion description 1、Schematic Diagram ① PV charging status indicator ② Battery 25% indicator ③ Battery 50% indicator ④ Battery 75% indicator ⑤ Battery 100% indicator ⑥ Load output indicator ⑦ Quadruple USB 5V Output ⑧ Dual DC 12V Output ⑨ Power switch ⑩ Solar Module positive (+ )Terminal 11 ○ Solar Module negative (－) Terminal 12 ○ Battery positive (+ ) Terminal 13 ○ Battery negative (－) Terminal 14 ○ Load positive (+ ) Terminal 15 ○ Load negative (－) Terminal
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2、Status instructions Lead-acid battery version（Here we take the 12V voltage system as an example, 24V×2,Voltage parameters error ± 3%）
When the battery is successfully connected, the controller enter into self-checking process, all the indicators light up once represent the self-checking has been succeeded. ① PV charging status indicator When the connection of Solar panel is correct, and the solar panel has abundant sunshine, the charge indicator will be Constant ON. ② Battery 25% indicator Constant ON（when the voltage of battery is higher than10.5V, lower than 12V） Flashing（when the voltage of battery is lower than 10.5V） ③ Battery 50% indicator Constant ON（when the voltage of battery is higher than 12V, lower than12.6V） ④ Battery 75% indicator Constant ON（when the voltage of battery is higher than 12.6V, lower than13.8V） ⑤ Battery 100% indicator Constant ON（the voltage of battery is higher than 13.8V）
⑥ Load output indicator Only when the Battery 50%, 75%, 100% indicator either one of the three indicator constant on, the POWER SWITCH will take effect, the load can be work, the default is turn on. Constant ON (normal output is allowed, the start output voltage ≥ 12V, the cut-off output voltage ≤ 10.5V) Flashing ( when the system is in the state of over current or short circuit protection, the controller will return to work automatically after finish trouble shooting for 10 seconds) 3 series lithium battery version
When the battery is successfully connected, the controller enter into self-checking process, all the indicators light up once represent the self-checking has been succeeded. ① PV charging status indicator When the connection of solar panel is correct, and there has abundant sunshine, the charge indicator will be Constant ON. ② Battery 25% indicator Constant ON（when the voltage of battery is higher than7.5V, lower than 10.2V） Flashing（when the voltage of battery is lower than 7.5V） ③ Battery 50% indicator Constant ON（when the voltage of battery is higher than 10.2V, lower than 10.8V） ④ Battery 75% indicator Constant ON（when the voltage of battery is higher than 10.8V, lower than 11.3V） ⑤ Battery 100% indicator Constant ON（the voltage of battery is higher than 11.3V)
⑥ Load output indicator Only when the Battery 50%, 75%, 100% indicator either one of the three indicator constant on, the POWER SWITCH will take effect, the load can be work, the default is turn on. Constant ON (normal output is allowed, the start output voltage ≥ 10.8V, the cut-off output voltage ≤ 7.5V) Flashing ( when the system is in the state of over current or short circuit protection, the controller will return to work automatically after finish trouble shooting for 10 seconds) 4 series lithium battery version
When the battery is successfully connected, the controller enter into self-checking process, all the indicators light up once represent the self-checking has been succeeded. ① PV charging status indicator When the connection of solar panel is correct, and there has abundant sunshine, the charge indicator will be Constant ON.
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② Battery 25% indicator Constant ON（when the voltage of battery is higher than13.6V, lower than 10V） Flashing（when the voltage of battery is lower than 10V） ③ Battery 50% indicator Constant ON（when the voltage of battery is higher than13.6V, lower than 14.4V） ④ Battery 75% indicator Constant ON（when the voltage of battery is higher than 14.4V, lower than 15V） ⑤ Battery 100% indicator Constant ON（the voltage of battery is higher than 15V） ⑥ Load output indicator Only when the Battery 50%, 75%, 100% indicator either one of the three indicator is constant ON, the POWER SWITCH will take effect, the load can be work, the default is turn on. Constant ON (normal output is allowed, the start output voltage ≥ 14.4V, the cut-off output voltage ≤ 10V) Flashing ( when the system is in the state of over current or short circuit protection, the controller will return to work automatically after finish trouble shooting for 10 seconds)
User instruction 1.
PV charging status indicator When the system connection is correct, and the solar panel has abundant sunshine, the charging indicator ① (green light) is constant ON, it means the charge function of the system is normal and it can charge.
2.
Load startup conditions The load is allowed to start only when the battery is in the state of 50%～100%, but once started. Once the load has open, it can work until the Battery 25% indicator ② (flashing). When the battery further decline to the cut off discharge voltage, the Battery 25% indicator ② (red light ON), the load forced to cut off the output in order to protect the battery.
3.
The start of the output over current and short circuit protection When the load output is normal, the load output indicator constant ON. When the output current is higher than rated current or the short circuit occurs, the system output and the extensional output will enter into the protection state, then the load output indicator ⑥ flickers. The controller would automatically cut-off all the output. After 10 seconds the controller will automatically return to work, if the troubleshooting has finished.
Troubleshooting
When the following phenomenon happens, please check as follows,
Phenomenon All the indicators are OFF Charging indicator ① is OFF during daytime when sunshine falls on PV modules properly The battery 25% indicator(red light) is ON, but the load does not start
The load output indicator ⑥ is OFF, the load does not start
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Trouble shooting Check the battery wiring whether is well connected or tight connection or whether the voltage of the battery is normal or not. Check the PV and battery wire whether is well connected or tight connection. The power of the battery is low, the load could not start. The lead-acid battery version-when the start output voltage is higher than 12V (24V×2), the load will start to work automatically. The 3 Series lithium battery version-when the start output voltage is higher than 10.8V, the load will start to work automatically. The 4 Series lithium battery version-when the start output voltage is higher than 14.4V, the load will start to work automatically. 1. Reference to the system wiring diagram, check the system whether is well connected or not. 2. Check the power of the battery, the load starts only when the battery 50%, 75%, 100% indicator either one of the three indicator is(green light) ON. 3. Connect the solar module, charge the battery in the sufficient sunlight area for 3 to 5 hours.
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The load output indicator ⑥ is flashing and
When the system is in the state of over current or short circuit protection, the controller
there is no output
will return to work automatically after finish trouble shooting for 10 seconds.
The load automatically close after it starts, then
Check the battery status, if the load closed before it turns red, it means the controller is
the load indicator is extinguished, after a while it
in the state of under voltage protection, at this time you need to check the battery
will automatically start, go full circle;
voltage, power supply capacity, as well as the connecting wire cross-sectional area is sufficient or not, or whether the battery connection is too long.
The load could not close
Check whether the power switch is sticks to the muck or cannot work normally or not.
Other phenomena
Check the wiring whether is tight or not, and the automatic identification of 12V/24V system is correct or not.
Note: We keep right to change and update without prior notice.
Specification CPT series Model Type of battery
CPTLi305
Li310
Li315
3series lithium battery
Li405
Li410
Li415
LA05
4 series lithium battery
LA10
LA15
lead-acid battery
Max. charge current
5A
10A
15A
5A
10A
15A
5A
10A
15A
Max. discharge current
10A
20A
30A
10A
20A
30A
10A
20A
30A
Rated voltage
12.6V
16.8V
12V/24V auto work
Max. charge voltage
12.6V
16.8V
14.7V/29.4V
Cut-off discharge voltage
6.9V
9.2V
10.5V/21.0V
Over discharge recovery
7.3V
9.7V
12V/24V
voltage Protection
With over charge, over discharge, over current, short circuit and reverse polarity protection
DC output
Quadruple DC 12V output, total load capacity is 6A,with over current protection
USB output
Dual USB 5V output, total load capacity is 3A,with over current protection
Dimension
192.1×91.6×30mm
Weight
330g
*Parameters may customized by customers. If you need any assistance or have further questions, please don't hesitate to
contact with Vodasi company or our dealers.
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Dimension Figure
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