SMA STP 8000TL-10 - Manual (Page 75)

SMA Solar Technology AG 11 Messages
Installation Manual STP8-17TL-IA-en-31 75
301 < Grid fault >
The 10-minute-average line voltage is no
longer within the permissible range.
This can be caused by one of the
following:
• The line voltage at the termination
point of the inverter is too high.
• The grid impedance at the
termination point of the inverter is
too high.
The inverter disconnects from the grid to
maintain power quality.
• Check the line voltage at the
termination point of the inverter:
If, due to local grid conditions, the line
voltage exceeds the configured treshold,
ask the network operator whether the
voltage can be adjusted at the feed-in
point, or whether it would be acceptable
to modify the treshold for power quality
monitoring.
If the line voltage is continually within the
tolerance range, and this error is still
displayed, contact the SMA Service Line.
401, 404 < Grid fault >
The inverter is no longer in grid-parallel
operation and has stopped feed-in for
safety reasons.
• Check the grid connection for
strong, short-term frequency
variations.
501 < Grid fault >
The power frequency is not within the
permissible range. The inverter
disconnects from the electricity grid for
safety reasons. • If possible, check the power
frequency and observe how often
major fluctuations occur.
If there are frequent fluctuations and this
error occurs as a result, ask your network
operator if it would be acceptable to
change the operating parameters.
Discuss the proposed parameters with the
SMA Service Line.
601 < Grid fault >
The internal monitoring function of the
inverter has detected an excessively high
proportion of direct current in the line
current. • Check the grid connection for direct
current.
• If this event occurs often, check with
the network operator whether it is
possible to raise the threshold for
monitoring.
Event no. Display message and cause Corrective measures