Pv Wiring Connection - LG LGES-5048 User Manual

2.4.2 PV Wiring Connection

Before connecting PV panels/strings to inverter, please make sure requirements are followed as
below
:
• The total short-circuit current of a PV string must not exceed the inverter's max DC current.
• The minimum impedance to earth of the PV module shall be greater than R. R=Max.Input
Voltage (V)/30mA, i.e. R=1100V/30mA=36.7KΩ or R=1000V/30mA=33.4KΩ).
• The PV string must not be connected to the earth/grounding conductor.
• Use the right PV plugs in the accessory box. (BAT plugs are similar to PV plugs. Please check before
using them.)
Note: There are MC4 plugs in the accessory box. The connection details are shown below.
1
Prepare the PV cables and PV plugs.
4-6mm
2
4-6mm
2
Note:
1. Please use the PV plugs and connectors from the
accessory box.
2. The PV cable should be a standard 4–6mm
3
Screw the cap on and plug it into the inverter side.
Note: There will be a clicking sound if the connectors are inserted correctly into the PV plugs.
The polarity of the PV strings must not be connected in a reverse manner. Otherwise, the
inverter could be damaged.
2
Connect the PV cable to the PV connectors.
7mm
7mm
Note:
1. Crimp the PV cable tightly onto the connectors.
2. There will be a clicking sound if the connectors are
inserted correctly into the PV plugs.
.
2
10
MC4 Series