SmartSolar MPPT Manual
Table Of Contents
- MPPT solar charger manual
- Table of Contents
- 1. Safety precautions
- 2. Introduction
- 3. Features
- 4. Installation
- 5. Configuration and settings
- 6. Operation
- 7. Monitoring
- 8. Warranty
- 9. Troubleshooting and Support
- 9.1. The controller is not operational
- 9.2. Batteries are not charged
- 9.3. Batteries are undercharged
- 9.3.1. Too much DC load
- 9.3.2. Battery charge voltages are too low
- 9.3.3. The battery is almost full
- 9.3.4. Battery cable voltage drop
- 9.3.5. Temperature difference between solar charger and battery
- 9.3.6. Insufficient solar
- 9.3.7. Wrong temperature compensation setting
- 9.3.8. Battery charge current too low
- 9.4. Batteries are overcharged
- 9.5. Solar issues
- 9.5.1. PV reverse current too high
- 9.5.2. PV yield less than expected
- 9.5.3. Full rated output not reached
- 9.5.4. Max PV output power relates to battery voltage
- 9.5.5. Mixed PV panel types
- 9.5.6. PV connections burned or melted
- 9.5.7. MC4 connectors wrongly connected
- 9.5.8. Optimisers cannot be used
- 9.5.9. Earth fault detection missing
- 9.5.10. Ground current
- 9.6. Communication issues
- 9.7. Settings or firmware issues
- 9.8. Operation issues
- 10. Technical specifications
- 11. Appendix
Status screen - Settings screen - Product info screen
9.7.3. Interrupted firmware update
This is recoverable and is nothing to worry about. Just try to update the firmware again.
9.8. Operation issues
This chapter describes all remaining troubleshooting suggestions that were not covered in previous chapters.
9.8.1. Unable to operate as a power supply
We do not recommend to use the solar charger as a power supply, that is without batteries connected.
Operation as a power supply will not damage the solar charger, but it is not guaranteed that the solar charger is able to run all
types of loads. Some type of loads might run, others might not. Especially at low load power, the solar charger is too slow to keep
the voltage constant. As such, we do not provide support in these kind of situations.
9.8.2. Unable to operate as a DC to DC charger
It is not recommended to use the solar charger as a DC/DC charger, for example, to charge a 12 Volt battery from a 24V battery
bank.
Connecting a battery to the PV terminals can, under certain operational conditions, cause damage to the solar charger. This
damage is not covered by warranty.
MPPT solar charger manual
Page 55 Troubleshooting and Support