User Manual

6
FAULT CODES
Faults Possible reasons Troubleshooting
Charging LED Solar array Check that solar and battery wire connections are
indicator off during disconnection correct and tight.
daytime when
sunshine falls on
solar modules
Green Battery LED Battery voltage higher Check the battery voltage. If voltage levels are high,
indicator fast than over voltage disconnect the solar module immediately and
flashing disconnect voltage change to a new controller.
(OVD)
Battery LED Battery under voltage Load output is normal. Charging LED indicator will
indicators orange return to green automatically when fully charged.
Battery LED indicators Battery over The controller cut off the output automatically.
RED color and loads discharged LED indicator will return to green automatically
not working when not working.
Load status Over load Remove or cut out the additional load and press
indicator red and the button, the controller will resume after
slow flashing 3 seconds.
Load status indicator Short circuit Clear short circuit and press the button, the controller
red and fast flashing will resume to work after 3 seconds.
All LED indicators Temperature of When heat sink of the controller exceeds 85°C, the
flashing (battery controller too high controller will automatically cut input and output
orange indicator circuit. When the temperature reaches below 75°C,
flashing) the controller will resume operation. Reduce the
environment temperature, the power of solar
module or the power of the load.
All LED indicators System voltage error Check whether the battery voltage matches the
flashing (battery red controller working voltage. Please change to a suitable
indicator flashing) battery or reset the working voltage. If there is
nothing abnormal, please press load button to
clear the malfunction.
SOC value incorrect Wrong battery type Correct the right battery type;
selected using the Using the configuration of the charging voltage
reconfigured profile compensation if choosing the user defined battery
of the user defined type and ignore the SOC.
battery type.
SPECIFICATIONS
Electrical Parameters
Nominal System Voltage 12/24VDC
Max. PV input voltage 50V
Max. Battery Terminal Voltage 34V
Rated Battery Current SC320: 20A, SC330: 30A
Charge Circuit Voltage Drop ≤0.28V
Discharge Circuit Voltage Drop ≤0.20V
Self-consumption ≤8.4mA/12V; ≤7. 8mA/24V
Temperature compensation coefficient -3mV/°C /2V (Default)
Grounding Positive grounding