Full Product Manual

10
Key Parts
1. Grounding Bolt
2. LCD Display
3. Battery LED
4. PV LED
5. Fault LED
6. Navigation Buttons
7. RS-485 port—monitor controller through PC and update firmware
8. RTC Battery Slot—model is CR2032
9. Remote Temperature Sensor Port—optional accessory to remotely monitor battery
temperature
10. Remote Battery Voltage Sensor Port—Provides accurate battery voltage
measurement
11. Reserved Port—Reserved port for future development. Special accessory currently
not sold.
12. RS-232 port—monitor controller through PC and update firmware
13. PV Terminal
14. Battery Terminal
PV Array Requirements
PV Strings
The commander is suitable for various types of PV configurations to maximize electrical
energy. Configurations are dependent on the open circuit voltage (Voc) and maximum
power point voltage (Vmp) located in solar panel specifications. The following table is to
serve as a reference only.
System Voltage
36 Cell Module
(Voc < 23V)
60 Cell Module
(Voc < 38V)
72 Cell Module
(Voc < 46V)
Max
Best
Max
Best
Max
Best
12V
4
2
2
1
2
1
24V
6
3
3
2
3
2
48V
6
5
3
3
3
2
Note: The above parameter values are calculated under the STC conditions: Irradiance 1000W/m
2
,
Temperature 25°C, Air Mass 1.5
PV Max Power
The Commanders have a limiting current function, where the current is limited within a
range, and therefore allows battery charging at the correct value despite oversized input
power. The power operation follows the following conditions: