SMA SUNNY BOY 7000-US - Page 52

Electrical Connection SMA America, LLC
52 SB50US-80US-IA-en-36 Installation Manual
Positive Grounding
3. Tighten all cables in the terminal blocks in the DC disconnect with a torque of 15 in
-
lb. (1.7 Nm).
In order to check whether your inverter is grounded as intended, observe section
6.6.2 ”DC Input Grounding” (page 48).
1. Connect the negative DC cable to the terminal
labeled PV UNGROUNDED (A) in the DC
disconnect.
2. Connect the positive DC cable to the terminal
labeled PV GROUNDED (A) in the DC disconnect.
4. Using a screwdriver, make a hole in the left sealing
grommet.
5. Remove the rubber membrane.
2357 AB+-
2
4
0
V
2
7
7
V
2
0
8
V
2357 AB+-
2
4
0
V
2
7
7
V
2
0
8
V