9
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 recommended cable size as below.
Model
Typical Amperage
Cable Size
Torque
Model with PWM
50A
8 AWG
1.4~1.6 Nm
Model with MPPT
80A
6 AWG
1.4~1.6 Nm
PV Module Selection:
When selecting proper PV modules, please be sure to consider the parameters below:
1.
Open circuit Voltage (Voc) of PV modules
can’t exceed
the maximum voltage of the PV array open circuit of
the inverter.
2.
Open circuit Voltage (Voc) of PV modules should be higher than the minimum voltage of the battery.
Please follow the steps below to implement PV module connection:
1.
Remove insulation sleeve 10 mm from positive and negative conductors.
2.
Check the correct polarity of connected 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.
3.
Make sure the wires are securely connected.
Solar Charging Mode
Solar Charger Type
PWM
MPPT
Max. PV Array Open Circuit Voltage
80Vdc
145Vdc
PV Array MPPT Voltage Range
N/A
30~80Vdc
Operating Voltage Range
30~40Vdc
N/A
Min. battery voltage for PV charge
17Vdc
17Vdc
