User Manual

PV Over
Current/power
When the charging current or power of the PV array exceeds the
controller’s rated current or power, it will be charge at the rated
current or power.
NOTE: When the PV modules are in series, ensure that the
open-circuit voltage of the PV array does not exceed the
"maximum PV open-circuit voltage" rating. Otherwise the controller
may be damaged.
PV Short Circuit
When not in PV charging state, the controller will not be
damaged in case of a short-circuiting in the PV array.
PV Reverse Polarity
When the polarity of the PV array is reversed, the controller may not
be damaged and can continue to operate normally after the polarity
is corrected.
NOTE: If the PV array is reverse connected to the
controller,1.5 times rated controller power(watts)from the PV array,
will damage the controller.
Night Reverse
Charging
Prevents the battery from discharging to the PV module at
night.
Battery Reverse
Polarity
Fully protected against battery reverse polarity; no damage will
occur to the battery. Correct the miswire to resume normal
operation.
NOTE: Limited to the characteristic of lithium battery, when the PV
connection is correct and battery connection reversed, the
controller will be damaged.
Battery Over
Voltage
When the battery voltage reaches the over voltage
disconnect voltage, it will automatically stop battery charging to
prevent battery damage caused by over-charging.
Battery Over
Discharge
When the battery voltage reaches the low voltage disconnect
voltage, it will automatically stop battery discharging to prevent
battery damage caused by over-discharging. (Any controller
connected loads will be disconnected. Loads directly connected to
the battery will not be affected and may continue to discharge the
battery.)
Battery Overheating
The controller can detect the battery temperature through an
external temperature sensor. The controller stops working when its
temperature exceeds 65 °C and restart to work when its tempera-
ture is below 55 °C.
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