Anhui JNGE Power Co,. Ltd
Address
：
No.99 Yonghe Road, High-Tech Zone, Hefei City Anhui Province, China Mainland
Tel
：
0551-65372576
http://www.hfjnge.com
- 14 -
Protection
Explain
Reverse
polarity
connection of
solar panel
modules
When the polarity of solar panel modules is reversed, the controller will
not be charged and will not be damaged. After correcting the wiring
errors, the controller will continue to work normally
PV over voltage
protection
When solar panel array charging voltage exceeds the controller's rated
input voltage range, it will stop charging
Reverse
polarity of
battery
When polarity of the battery is reversed, the controller will not work and
will not be damaged
Battery over
discharge
protection
When battery voltage is lower than the set under voltage value, the
battery will automatically stop the discharge, prevent the battery from
excessive discharge and damage
Battery
overvoltage
protection
When battery voltage reaches the set value of over voltage protection, it
will automatically stop charging the battery to prevent the battery from
overcharging and damage
Night protection At night, as the battery voltage is larger than the solar panel module
voltage, automatic protection prevents the battery voltage from
discharging through the solar panel module
Equipment
overheating
protection
There is a temperature sensor inside the controller. When the
temperature is higher than the set value, the charging will stop, and the
temperature will automatically start and continue to work
High voltage
surge
This controller can only protect high-voltage surges with low energy. In
areas with frequent lightning, it is recommended to install external
lightning arrester
5.2 Trouble Remove
If the following failure phenomenon occurs, please follow the following methods for
inspection and troubleshooting
：
5-2 Troubleshooting list
Error
Indicator
status and
alarm icon
Possible reasons
Solutions
Array over
voltage
Red light
，
Icon
flash
number of photovoltaic
array series groups is
relatively large
Disconnect the photovoltaic array, reduce the
number of photovoltaic array groups in series,
and ensure that the open circuit voltage of the
photovoltaic array does not exceed the set
value in the "photovoltaic electrical
parameters" table
