11
(2) PV array maximum power
This MPPT controller has a limiting function of charging current, the charging
current will be limited within rated range, therefore, the controller will charge
the battery with the rated charging power even if the input power at the PV
exceeds.
The actual operation power of the PV array conforms to the conditions below:
1
）
PV array actual power ≤ controller rated charge power, the controller
charge battery at actual maximum power point.
2
）
PV array actual power > controller rated charge power, the controller
charge battery at rated power.
If the PV array higher than rated power, the charging time at rated power to
battery will be longer, more energy to battery yields.
WARNING:
Controller will be damaged when the PV array straight
polarity and the actual operation power of the PV array is three times
greater than the rated charge power!
WARNING:
Controller will be damaged when the PV array reverse
polarity and the actual operation power of the PV array is 1.5 times
greater than the rated charge power!
When the PV array straight polarity, the actual operation of the PV array must
NOT exceed three times of rated charge power
；
When the PV array reverse
polarity, the actual operation must NOT exceed 1.5 times. For real application
please refer to the table below:
Model
Rated Charge
Current
Rated Charge
Power
Max. PV
Array Power
Max. PV
open circuit
voltage
ET4415BND
45A
600W/12V
1200W/24V
1800W/36V
2400W/48V
1800W/12V
3600W/24V
5400W/36V
7200W/48V
150V
①
138V
②
ET6415BND
60A
800W/12V
1600W/24V
2400W/36V
3200W/48V
2400W/12V
4800W/24V
7200W/36V
9600W/48V
ET6420BND
60A
800W/12V
1600W/24V
2400W/36V
3200W/48V
2400W/12V
4800W/24V
7200W/36V
9600W/48V
190V
①
180V
②
①
At minimum operating environment temperature
②
At 25
℃
environment temperature
