4. PRODUCT PROTECTION AND MAINTENANCE
Water proof
Waterproof level:Ip32
Input power limit protection
When the solar panel exceeds the rated power the controller will limit the power of the solar
panel to the rated power to prevent any excess current damaging the controller and enter into
current- limited
Charging.
Battery reverse polarity protection if the battery is connected in reverse the controller will not
turn on as to protect the controller from component damage.
Solar input high voltage protection
If the solar panel array voltage is too high the controller will automatically Shut down the panel
input voltage.
Solar input short circuit protection
If the solar panel has short circuit the controller will stop working until The short is rectified then
the controller will start working normally.
Solar panel reverse connection
If the solar panel is reversely connected the controller will stay illuminated however there will be
no power display going to the battery The controller will go back to normal operation once the
wiring has been corrected.
Load overpower protection
When the load power exceeds the rated power value, the load will enter into delay protection.
Load short circuit protection
If the load is short circuited the controller will protect the load by shutting it down this can
happen 5 times per day without affecting the controller users can also manually address this
through accessing the abnormality codes on the system data analysis page.
Reverse charging protection at night
This function will protect the battery from discharging through the solar panel at night
Over temperature protection
When the controller temperature exceeds the set value ,it will decrease the charging power or
stop charging until the temperature has decreased, see the following diagram.
15%
20%
25%
35%
40%
45%
55%
60%
65%
75%
80%
85%
95%
100%
Chg-P :/%
66
Tem-MOS :/ ℃
65 67 68 69 70 71 72 73 74 75 76 77 78 790
0
5 % Fig. 4-1
