SMA sunny boy 2000hf-us, Руководство по установке

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Wiring the Sunny Boy SMA America, LLC
52 SB20_25_30HFUS-eng-IUS113711 Installation Guide
DC connection with a positively grounded PV plant
Connecting the Sunny Boy on the DC side
1. Connect the positive inverter wire (red wire) of the
Sunny Boy to the terminal (B).
2. Connect the negative inverter wire (black wire) of
the Sunny Boy to the terminal (C).
Connecting the PV strings
3. Remove the screwless end block from the top- hat-
rail (left of the DC terminal block).
4. Mount three fuse holders to the top-hat rail.
Refer to section 14 ”Accessories” (page 108) for a
specification of suitable fuse holders.
5. Ensure that fuses are installed in the fuse holders.
The fuses must be fully operative and of the correct
size. Refer to section 14 ”Accessories” (page 108)
for a specification of suitable fuses. If there are no
functional fuses installed, then install fully operative
fuses.
6. Put the sticker delivered with the fuse holder plainly
visible near by the fuse holder.
7. Loosen the screws of the lower terminals of the fuses
(G) in a counterclockwise direction.
8. For each negative DC wire of the PV strings:
– Feed in the wire from below into the terminal of
a fuse (G).
– Tighten the terminal screw in a clockwise
direction.
9. Strip the ends of the additional wires on one side in accordance with the specifications of the
fuse holder manufacturer.
10. Strip the ends of the additional wires on the other
side to a length of
1
⁄
3
in. (8 mm).
11. Loosen the screws of the upper terminal of the fuses
(A) in a counterclockwise direction.
12. For each additional wire:
– Feed in the wire from above into the terminal of a fuse holder (A).
– Tighten the terminal screw in a clockwise direction.
Using DC terminal blocks
Connect the wires to the DC terminal block as described in section 12.7.1 ”Connect wires
to DC terminal block” (page 100).