SMA SB 2000HF-30 Installation - Manual (Page 68)

Messages SMA Solar Technology AG
68 SB20HF-30HF-IA-en-32 Installation Manual
6 < Grid fault >
The internal monitoring function of the
inverter has detected an excessively high
proportion of direct current in the grid
current. • Check the grid connection for direct
current.
• If this is a recurrent phenomenon,
check with the grid operator whether
it is possible to raise the limiting value
of monitoring.
7 < Frq. not permitted >
The power frequency is outside the
permissible range. The inverter disconnects
itself from the power distribution grid for
safety reasons. • If possible, check the power
frequency and observe how often
major deviations occur.
If there are frequent fluctuations and this
error occurs as a result, ask your grid
operator if it would be acceptable to
change the operating parameters.
Discuss the proposed parameters with the
SMA Service Line.
8 < Waiting for grid voltage >
< Grid failure >
< Check fuse >
• Check fuse.
• Check AC installation.
• Check whether there is a general
power outage.
33 < Unstable operation >
There is not enough power at the DC input
of the inverter for stable operation. This
may be caused by snow on the PV
modules. • Wait for more sunlight.
• If this event recurs at medium
irradiation, check the PV plant design
and correct the connection of the PV
array.
34 < DC overvoltage >
< Disconnect generator >
The DC input voltage connected to the
inverter is too high.
• Immediately disconnect the
inverter from the PV array, as
described in section
8 "Disconnecting the Inverter
from Voltage Sources"
(page 58)! The inverter may
otherwise be destroyed.
• Check the DC voltage of the strings
for adherence to the maximum input
voltage of the inverter before
reconnecting the inverter to the PV
array.
Event no. Display message and cause Corrective measures