SMA WB 3000-21 Installation - Manual (Page 61)

SMA Solar Technology AG 11 Troubleshooting
Installation Manual WB3-5TL-21-IA-en-10 61
202 to
203,
205 Grid fault The power distribution grid has been disconnected, the
AC cable is damaged or the line voltage at the
termination point of the inverter is too low. The inverter
has disconnected from the power distribution grid.
Corrective measures:
• Ensure that the miniature circuit-breaker is switched
on.
• Ensure that the AC cable is not damaged.
• Ensure that the AC cable is connected correctly.
• Check that the line voltage at the termination point
of the inverter is permanently in the permissible
range.
If the line voltage is outside the permissible range
due to local grid conditions, contact the grid
operator. Ask the grid operator whether the voltage
can be adapted at the feed-in point or if it would be
acceptable to change the monitored operating
limits.
If the line voltage is permanently in the permissible
range and this message is still displayed, contact
the SMA Service Line.
301 Grid fault The 10-minute average line voltage is no longer within
the permissible range. The line voltage or grid impedance
at the termination point is too high. The inverter
disconnects from the power distribution grid to comply
with the power quality.
Corrective measures:
• Check that the line voltage at the termination point
of the inverter is permanently in the permissible
range.
If the line voltage is outside the permissible range
due to local grid conditions, contact the grid
operator. Ask the grid operator whether the voltage
can be adapted at the feed-in point or if it would be
acceptable to change the monitored operating
limits.
If the line voltage is permanently in the permissible
range and this message is still displayed, contact
the SMA Service Line.
Event
number Display message Cause and corrective measures