Troubleshooting | 8
KD-536 | 1000051 | EN | 02
19 / 20
Fault
Possible causes
Rectification
Backup operation (grid outage) - Backup operation stops
Backup operation stops. The mini-
ature circuit breaker and the RCD
in the sonnenProtect have not
switched off. The eclipse of the
storage system is
off
.
The batteries of the storage system
have discharged so much that further
discharging would lead to a deep dis-
charge state and therefore damage the
batteries.
If the PV system generates electrical
power, the backup operation will continue
as soon as excess power is available.
If the PV system does not generate elec-
trical power the only thing to do is wait
until the grid outage passes and the public
electrical grid once again starts supplying
electrical energy. Then the sonnenProtect
automatically switches to grid operation.
Backup operation stops. The mini-
ature circuit breaker (F3.P) in the
sonnenProtect has switched off.
The eclipse of the storage system is
green
.
The miniature circuit breaker detected
an overload, this means electrical con-
sumers with too high power consump-
tion are connected to the backup cir-
cuit.
Switch off electrical consumers so that
the power consumption does not exceed
the nominal power or (when switching on)
the maximum power of the
sonnenProtect.
Then switch on the miniature circuit
breaker (F3.P) again. The storage system
automatically restarts the backup opera-
tion.
Backup operation stops. The RCD
(F4.P) in the sonnenProtect has
switched off. The eclipse of the
storage system is
green
.
The RCD has detected fault currents in
the backup circuit.
Contact your installer to check the wiring
and the connected electrical consumers
and to correct the error.
Backup operation stops. The mini-
ature circuit breaker and the RCD
in the sonnenProtect have not
switched off. The eclipse of the
storage system is
orange
.
The control of the storage system de-
tected an overload, this means there are
electrical consumers connected to the
backup circuit with a too high power
consumption.
Switch off electrical consumers so that
the power consumption does not exceed
the nominal power or (when switching on)
the maximum power of the
sonnenProtect.
The storage system automatically restarts
the backup operation. The eclipse of the
storage system is green.
If the backup operation does not start and
the eclipse stays orange, the storage sys-
tem has already unsuccessfully tried three
times to start the backup operation. Then
the only thing to do is wait until the con-
nection to the public electrical grid can
restored.
