Connecting The Inverter To The Grid - Epcom EPIG1K User Manual

Step 3: Check connection cable of one PV array string for correct polarity and that the
maximum input open circuit voltage does not exceed 450V.
Step 4: Measure DC voltage between positive terminal of the PV string and Earth and
DC voltage between negative terminal of the PV string and Earth. If the two
voltages are constant and not zero, there is an insulation failure somewhere in
this PV string.
Step 5: Plug DC positive and negative connector into corresponding terminals. If it
makes a click sound, it means DC connector has attached to terminals.

5.5 Connecting the inverter to the grid

5.5.1 AC output wiring
Step 1: Unscrew AC output cover at the downside of the machine.
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