User manual

Event message Description Type
Grid frequency too low
reactivation
After switch-off, the inverter cannot inject again
because the grid voltage is below the legally pre-
scribed switch-on value.
u Contact your installer if this error occurs fre-
quently.
Grid islanding detected
The grid is not carrying any voltage (self-run of the
inverter). For safety reasons the inverter is not
allowed to inject into the grid. It switches itself off
as long as the error is present (display dark).
u Contact your installer if this error occurs fre-
quently.
Grid relay defective
The inverter has detected that a grid relay is defec-
tive; for this reason, it is not injecting into the grid.
u Notify your installer.
Grid voltage too high
The grid voltage applied on the inverter exceeds the
permissible value. Pursuant to statutory regulations,
the inverter switches off automatically as long as
this fault is pending.
u Contact your installer if this error occurs fre-
quently.
Grid voltage Æ too high
The output voltage averaged over the legally pre-
scribed time period exceeds the permissible toler-
ance range. The inverter switches off automatically
as long as this fault is pending.
u Contact your installer if this error occurs fre-
quently.
Grid voltage too low
The grid voltage applied on the inverter is below
the permissible value. Pursuant to statutory regula-
tions, the inverter switches off automatically as
long as this fault is pending.
u Contact your installer if this error occurs fre-
quently.
Grid voltage Æ too low
The output voltage averaged over the legally pre-
scribed time period is below the permissible toler-
ance range. The inverter switches off automatically
as long as this fault is pending.
u Contact your installer if this error occurs fre-
quently.
Grid voltage too high for
reactivation
After switching off, the inverter cannot resume
feeding because the grid voltage exceeds the legally
prescribed switch-on value.
u Contact your installer if this error occurs fre-
quently.
EN
747.431 | Z09.3 | 2017-09-05 75