When load exceeds the rated power, delayed load over-power protection will be
started according to actual circumstances.
Load short circuit protection
Provide timely and fast protection for short circuit of load, and try to start load
automatically after a certain delay. The maximum number per day is 5 times. When load
short circuit occurs, the user can also remove load short circuit manually in system data
analysis page exception code.
Night reverse connection proof protection
At night, prevent battery discharging via solar panel.
TVS Lightning Protection.
Over-Temperature Protection
With temperature higher than the set temperature, the solar charge controller reduces charging power
or stops charging. See the following figure
4.2 System Maintenance
◆
To maintain the best and long-term performance, it is recommended that following
items are checked each year.
Confirm that air flow around the solar charge controller is not blocked. Remove any◆
dirt or debris on the cooling fin.
Check whether insulation of bare wires is damaged due to sunburn, friction with◆
other objects around, dry rot, insects or rodents destruction. Check whether repairing or
wire replacement is necessary.
Verify that indicators are consistent with equipment operation. Please pay attention to◆
any fault or error displays, and take corrective actions when necessary.
Check all wiring terminals to see if there is corrosion, insulation damage, high◆
temperature or burning /discoloration signs, and tighten screw terminal.
Check whether there are dirt, nest-building insects and corrosion phenomenon, and◆
clean by following requirements.
If lightning arrester has failed, timely replace invalid lightning arrester to prevent◆
causing lightning damage to solar charge controller or even user’s other equipments.
Warning: Risk of electric shock! In process of above operation, make sure all
power supply of the solar charge controller has been disconnected, and then conduct
related check or actions accordingly!
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