Troubleshooting - Projecta SC220 Instruction Manual

TROUBLESHOOTING

Faults
The LCD is off during
daytime when sunshine
falls on PV modules
properly
Wire connection is correct,
LCD not display
Interface
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Interface
blink
Interface
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Interface
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Possible reasons
PV array disconnection
1) Battery voltage is
lower than 9V
2) PV voltage is less than
battery voltage
Battery over voltage
Battery over discharged
Battery Overheating
Over load or Short circuit
Troubleshooting
Confirm that PV wire connections are correct
and tight
1) Please check the voltage of battery.
At least 9V voltage to activate the controller
2) Check the PV input voltage which should
be higher than battery's
Check if the battery voltage is higher than
OVD point (over voltage disconnect voltage),
and disconnect the PV
When the battery voltage is restored to
or above LVR point (low voltage reconnect
voltage), the load will recover
The controller will automatically turn the
system off. But while the temperature
decline to be below 50ºC, the controller
will resume
Please reduce the number of electric
equipment or check carefully load
connection
9