Connecting The Pv Array To The Inverter - SolarEdge SE15K-AU Installation Manual

33 Connecting the PV Array to the Inverter
9. Verify that all wires inside the Inverter are firmly tightened to the AC terminal block.
Check that the wires are fully inserted and cannot be pulled out easily.
10. Close the inverter cover and tighten the screws with a torque of 9 N*m / 10.3 N*m
(for plastic screws).
11. Close the cover of the DC Safety Unit and tighten the screws with a torque of 9 N*m
/ 10.3 N*m (for plastic screws).

Connecting the PV Array to the Inverter

Connect the PV array to the DC input pairs. Additional PV arrays can be added to the
system by parallel connection using an external combiner box or branch cables.
Installation and connection of the combiner box must be done before connecting to
the inverter or DC Safety Unit.
NOTE
Functional electrical earthing of DC-side negative or positive poles is prohibited
because the inverter has no transformer. Grounding (earth ground) of module
frames and mounting equipment of the PV array modules is acceptable.
NOTE
SolarEdge fixed input voltage architecture enables the parallel arrays to be of
different lengths. Therefore, they do not need to have the same number of
range. power optimizers, as long as the length of each string is within the permitt ed
Figure 18: Connecting wires to the terminal block
Three Phase Inverter with SetApp Configuration