12
11
3.3.4 PV connection
CAUTION: Before connecting to PV modules, please install separately a DC circuit
breaker between inverter and PV modules.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It's very important for system safety and efficient operation to use
appropriate cable for PV module connection. To reduce risk of injury, please use the
proper recommended cable size as below.
Table 3.4
PV Module Selection:
When selecting proper PV modules, please be sure to consider below parameters:
1.Open circuit Voltage(Voc) of PV modules not exceeds max. PV array open circuit
voltage of inverter.
2.Open circuit Voltage(Voc) of PV modules should be higher than min. battery voltage.
Model
Max. PV array open circuit voltage
PV array MPPT voltage range
Min. battery voltage for PV charge
Table 3.5
Please follow below steps to implement PV input connection:
1.Remove insulation sleeve 10 mm for positive and negative conductors.
Figure 3.9
3.Make sure the wires are securely connected.
3.3.5 Finally assemble
After connecting all wirings, please put bottom cover back by screwing two screws
as shown below
:
Figure 3.11
Model
Max charging current per string
Diameter
Torque
Solar Charger
3500
35A
1*10AWG
1.2-1.6Nm
Solar Charger 3500
145Vdc
60~115Vdc
36Vdc
Figure 3.10
2.Check correct polarity of connection cable from PV modules and PV input
connectors. Then, connect positive pole (+) of connection cable to positive pole (+) of
PV input connector. Connect negative pole (-) of connection cable to negative pole (-)
of PV input connector.
There're two pairs of string for PV SC3500.
