SMA SUNNY BOY 2000HF - Page 69

SMA Solar Technology AG Messages
Installation Guide SB20_25_30HF-IEN102911 69
2< Grid fault >
The grid voltage has fallen below the
permissible range. This error can have the
following causes:
• Grid disconnected
• AC cable damaged
• The grid voltage at the point of
connection of the inverter is too low.
For safety reasons, the inverter disconnects
itself from the grid.
• Check for tripping of the line circuit
breaker.
• Check the grid current and grid
connection on the inverter.
If the grid voltage lies outside the
acceptable range because of local grid
conditions, ask the utility provider if the
voltage can be adjusted at the feed-in point
or if it would agree to changes in the values
of the monitored operational limits.
If the grid voltage lies within the tolerance
range, yet this error is still being displayed,
contact the SMAServiceline.
3< Grid fault >
The average grid voltage over 10 minutes
is no longer within the permissible range.
This can have the following causes:
• The grid voltage at the point of
connection of the inverter is too high.
• Grid impedance at the terminal of the
inverter is too high.
The inverter disconnects to assure
compliance with the voltage quality of the
grid.
• Check the grid voltage at the point of
connection of the inverter:
If due to local grid conditions the grid
voltage exceeds the configured limiting
value, ask the utility provider whether the
voltage can be adjusted at the feed-in
point, or whether it would agree to a
modification of the limiting value for
voltage quality monitoring.
If the grid voltage is continually within the
acceptable range, and this error is still
displayed, contact the SMAServiceline.
4< Grid fault >
The inverter has left the grid parallel
operation and for safety reasons
interrupted feeding-in.
• Check the power supply line for
strong, short-term frequency
variations.
5< Grid fault >
The grid frequency is not within the
permissible range. For safety reasons, the
inverter disconnects itself from the grid.
• If possible, check the grid frequency
and observe how often major
deviations occur.
If repeated frequency variations occur and
as a result this error occurs, ask the utility
provider if it would agree to modify the
operating parameter.
Discuss the proposed parameters with the
SMAServiceline.
Event no. Display message and cause Corrective measures