
11.7
Disconnecting connections
11.8
Faults
11.8.1
Procedure
DANGER
Lethal voltages are still present in the connections and cables of the device even after the device has
been switched off and disconnected!
Severe injuries or death may occur if the cables and/or terminals/busbars in the device are touched.
›
If a fault occurs, notify an appropriately authorised and qualified electrician or the customer service
department of the system integrator.
›
The operator can only carry out actions marked with a B.
NOTE
In case of power failure, wait for the system to automatically restart. Notify your electrician if there is an
extended power failure.
11.8.2
Rectifying a fault
Fault
Possible cause
Explanation/remedy
By
The display is blank and
the LEDs do not light up
Grid voltage not avail-
able
› Check whether the AC voltage is within the permitted limits
(see Technical Data)
E
Please inform your system manufacturer.
E
The device stops char-
ging or discharging the
battery shortly after be-
ing switched on.
Faulty grid separation
relay in the device.
If the grid separation relay is defective, the device will recog-
nise this error during the self-test.
K
If the grid separation relay is defective, obtain a replacement
from the system manufacturer.
Please inform your system manufacturer.
K
Device is active but not
connected to the grid.
The display indicates a
grid failure.
Charging or discharging
has been interrupted
due to a grid fault.
Due to a grid fault (over/undervoltage, over/underfrequency),
the device stopped the feed-in process and disconnected from
the grid for safety reasons.
› Change the grid parameters within the permitted operating
limits (see the "Start-Up" section).
E
The grid fuse trips.
The grid fuse capacity is
too low.
Select a fuse by referring to Section 7.2.1 Supply line and fuse
requirements.
The grid fuse trips.
Hardware damage on
the device.
If the grid fuse trips immediately when the device goes into
charging or discharging mode (after the start-up period is com-
plete), the device’s hardware is probably damaged.
Please inform the system manufacturer in order to test the
hardware.
E
KACO blueplanet gridsave 50.0TL3-S
Page 75
EN