TECHNICAL SUPPORT
Solar Charge Controllers mainly are divided into 2 classes: MPPT and PWM, and you can find the description of the difference between these 2 in the last part of this page.
Both PWM and MPPT charge controllers are widely used in various kinds of solar DC power systems, like solar street light, DC power kit, RV kit, communication DC station, backup power station and so on. Years before, solar DC power products were only being used in industrial projects, and not many people took them for self use, but now more and more people have already accept solar power and begin to use solar products in their personal lives.
If you are interested in solar charge controller, but not a profession in solar DC area, then please read the below content for more understandings:
Solar Input Current | 5A | 10A | 20A | 30A | 40A | 60A |
---|---|---|---|---|---|---|
Wire SIZE (mm²) | 1.5 | 2.5 | 5 | 8 | 10 | 12 |
Wire AWG | 15 | 13 | 10 | 8 | 7 | 6 |
Error | Description & Quick Troubleshoot |
---|---|
Battery Over-discharged | Battery Over-discharged Battery voltage is too low. DC load will be turned off until battery re-charges to recovery voltage. |
Battery Over-voltage | Battery voltage has exceeded controller limit. Check battery bank voltage for compatibility with controller. |
Load Short Circuit | DC load short circuit. |
Load Overload | DC load power draw exceeds controller capability. Reduce load size or upgrade to a higher load capacity controller. |
Overheating | Controller exceeds operating temperature limit. Ensure the controller is placed in a well-ventilated cool, dry place. |
Solar Over-amperage | Solar array amperage exceeds controller rated input amperage. Decrease the amperage of solar panels connected to the controller or upgrade to a higher rated controller. |
Solar Over-voltage | Solar array voltage exceeds controller rated input voltage. Decrease the voltage of solar panels connected to the controller. |
Solar Reverse Polarity | Solar array input wires connected with reverse polarity. Disconnect and re-connect with correct wire polarity. |
Battery Reverse Polarity | Battery connection wires connected with reverse polarity. Disconnect and re-connect with correct wire polarity. |
Many solar power system users may have headache about how to choose a controller for their solar power systems, PWM or MPPT? Commonly, we have a few guidelines for this:
Many solar power system users may have headache about how to choose a controller for their solar power systems, PWM or MPPT? Commonly, we have a few guidelines for this:
Many solar power system users may have headache about how to choose a controller for their solar power systems, PWM or MPPT? Commonly, we have a few guidelines for this:
Many solar power system users may have headache about how to choose a controller for their solar power systems, PWM or MPPT? Commonly, we have a few guidelines for this: