Technical data
Grid
Grid-related events
ID Display Description Action DNO Hotline PV
1–6 The grid voltage is too low Check voltage and AC installation, if
the voltage is zero check the fuses
x - -
7–9 The grid mean voltage is too
high
Check that the installation is correct
according to the installation manual
and if found okay, then increase the
mean voltage limit according to sec-
tion
Functional Safety
x - -
10–15 The grid voltage is too high Check voltage and AC installation x - -
16–18 The momentary grid voltage
is too high
Check voltage and AC installation x - -
19–24 The grid frequency is out of
range
- x - -
25–27 Loss of mains, line to line
voltage too low
Check the line to line voltage and the
AC installation
x - -
28–30 Loss of mains, ROCOF out of
range
- x - -
31–33 DC content of the grid cur-
rent is too high
- - x -
34–37 The detected residual cur-
rent is too high
Make a visual inspection of all PV ca-
bles and modules
- x -
40 AC grid
not OK
The AC grid has been out of
range for more than 10 mi-
nutes
Check the AC installation x - -
246 A grid event was detected
and inverter was stopped by
the redundant safety circuit
A grid event was detected and inverter
was stopped by the redundant safety
circuit. Check the eventlog, if the ma-
jority of entries are of type 246, call
the service department. Otherwise
wait 24 h and check again.
- x -
Table 11.2: Grid-related Events
PV
PV-related events
ID Display Description Action DNO Hot-
line
PV
103-105 PV current is
too high / wait-
ing
PV current is too high Check that installation and layout
corresponds to recommendations
in this manual.
- x x
115 PV insulation
resistance is
too low / retry-
ing
The insulation resist-
ance between ground
and PV is too low. This
will force the inverter
to make a new meas-
urement after 10 mi-
nutes have passed.
Make a visual inspection of all PV
cables and modules. Check that
the installation is correct according
to the installation manual as it
could indicate that the PE connec-
tion is missing.
- x x
258 PV voltage too
high / waiting
PV voltage is too high Check that installation and layout
corresponds to recommendations
in this manual.
- x x
Table 11.3: PV-related Events
11. Service and Repair
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