Wiring the Sunny Boy Wiring the DC Input
SB3000US-4000US-11-SE1607 SMA America 5-17
DC Input Grounding
The Sunny Boy comes from the factory configured for negative ground systems.
Certain types of PV modules may require that the positive terminal be grounded
instead of the negative terminal. To configure the Sunny Boy for positive ground,
move the fuse (1) and change the jumper position (2) as shown in the following
illustrations.
Figure 5-8 GFDI Fuse and Jumper Settings for Negative Ground
Figure 5-9 GFDI Fuse and Jumper Settings for Positive Ground
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