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6.3 PV Connection
Please use the PV terminals from the accessory box for connection. Before connecting,
please make sure:
•
The voltage, current and power ratings of the panels to be connected are within
the allowable range of the inverter. Ensure polarity is correct. Please refer to the
Technical Data in chapter 9 for voltage and current limits.
•
Since the inverter is transformerless, please do not ground either output of the PV
panels. Ground the panel frames.
•
The 3.68kW/5kW inverter is designed with 2 MPPT trackers, if the inputs of the
PV panels are paralleled, please consult with your local distributor for technical
support.
•
If the inverter is equipped with a PV switch, please make sure it is in the “off”
position. Otherwise please use an external PV switch to cut off the PV connection
during wiring and when necessary.
• 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.
Procedure:
•
Use IEC61730 class-A Rating PV modules.
•
When exposed to light, PV panels will generate DC voltage.
•
Turn off the PV switch before connecting any wiring.
Step1: Assembling the PV Connector:
•
Unscrew the cap on the PV port and remove the waterproof cover from the
PV port at the bottom of the middle control box, insert 4 PV cables (two pairs
of positive and negative) through the waterproof connector.
•
Remove an appropriate length of the insulation layer from the positive and
negative power cables using a wire stripper.
•
Insert the exposed areas of the positive and negative power cables into the