SMA STP 60-US-10 Installation - Manual (Page 40)

4 Service SMA Solar Technology AG
40 STP60-10-IA-xx-10 Installation Guide
Figure 4.1 Grid-related events
34 to 37 The residual-current monitoring
unit (RCMU) detected an
overcurrent. Turn off both DC and AC supply
and wait until the display turns off.
Then turn on DC and AC supply
and observe if the event reoccurs.
Visual inspection of all PV cables
and modules. - - -
40 Utility grid
not OK. The utility grid has been
outside the permissible range
for more than ten minutes
(frequency and/or voltage). Check power frequency, grid
voltage, software version and
grid code setting. - - -
41 to 43 Fault ride through. The inverter
has detected that grid voltage
was below or above a certain
level. If this event is reported several
times each day, perform onsite
grid analysis.
48, 51 Power frequency too low or
too high. Check power frequency and AC
installation. - - -
54 to 56 DC current share in utility grid
is too high (stage 2). For repeated daily occurrences,
perform onsite grid analysis. - - -
61 Grid failure, open phase
detected. If the event reoccurs several times
each day, contact the responsible
grid operator. - - -
62 Grid failure. If the event reoccurs several times
each day, contact the responsible
grid operator. - - -
64-81 Grid voltage on phase too low. Check voltage and AC
installation. If the voltage is zero,
check the fuses.
- - -
ID Status
message Description Measure DGO Hotline PV