SMA SC 500CP XT - Manual (Page 90)

Figure 17: GFDI
Position Designation
A GFDI
10.2.3.3 Remote GFDI
Depending on the order option, ground fault monitoring in the inverter may be carried out via ground fault detection
and interruption with motor drive, in short "Remote GFDI". This grounds one terminal of the PV array. Remote GFDI also
enables automatic error processing. This reduces downtimes and avoids service calls due to temporary insulation
errors such as when condensation occurs on the PV modules. Remote GFDI is performed via a high-performance K-type
circuit breaker with adjustable operating current. The remote GFDI is integrated in the inverter and connected between
an input busbar and the grounding busbar.
Figure 18: Remote GFDI
Position Designation
A Remote GFDI
10 Function Description SMA Solar Technology AG
User Manual SCCPXT-BA-E4-en-54 90