SEEDSUN

Fault phenomenon
1. It is sunny but not charged
Possible cause: open circuit or reverse connection of photovoltaic panel
Troubleshooting: Re link the photovoltaic panel
2. Load ID is not lit
Possible cause: Wrong mode setting
Troubleshooting: reset
Possible cause: battery voltage is too low
Troubleshooting: Recharge
3. Slow flashing of load identification
Possible cause: load overcurrent
Troubleshooting: reduce load power
4. Flash load identification
Possible cause: short-circuit protection
Troubleshooting: remove the short circuit and recover automatically
5. The controller does not light up
Possible cause: battery voltage is too low/reverse connection
Troubleshooting: replace the battery/check the reverse connection

Instructions for purchasing machines
The focused MPPT solar controller is an upgraded version of the general PWM controller, and the charging efficiency is increased by 5%-10% compared with the general controller Auto-focusing to achieve maximum current charging and maximum efficiency improvement

Charged 12V battery with 15-23V solar panel
Charged 24V battery with 30-46V solar panel
Charged 36V battery with 45-66V solar panel
Charged 48V battery with 60-90V solar panel

Do not charge 12V battery with solar panels charging 24V/36V/48V. Excessive pressure difference may cause overheating and damage to the controller

Wiring instructions: In order to correctly identify the battery voltage, the controller ensures that:

12V battery voltage is higher than 10V;
24V battery voltage is higher than 20V;
36V battery voltage is higher than 30V;
48V battery voltage is higher than 40V;;

The wiring of the controller is first connected to the battery, then to the photovoltaic panel and then to the DC load

1 Connect the positive and negative poles of the battery to the controller as shown in the figure, and the controller will automatically detect the battery voltage

2 Connect the positive and negative poles of the load to the controller as shown in the figure

3 Connect the solar panel to the controller as shown

Note: Please access in strict accordance with the above order, otherwise the controller may be damaged. The disassembly sequence is opposite to the wiring sequence.

Matters needing attention
1 This controller is 12V/24V/36V/48V automatic adaptation. Please ensure that the battery has enough voltage during the first installation so that the controller can identify the correct battery type

2 Install the controller as close to the battery as possible to avoid the voltage drop caused by too long wires affecting the normal voltage judgment

3 This controller is suitable for all kinds of lead-acid batteries (including open sealing colloid, etc.) and lithium batteries (lithium batteries need to manually adjust the overcharge voltage). Please do not use other batteries (nickel-hydrogen batteries, etc.)

4 This controller can only use photovoltaic panels as charging sources, please do not use DC or other power sources as charging sources

5 This controller will heat up when running. Please pay attention to installing the controller on a flat and well-ventilated surface