Fault
Possible cause
Explanation/remedy
By
Device is active but not
connected to the grid.
Display : "Waiting for
feed-in"
Battery voltage too low;
grid voltage or battery
voltage unstable.
The battery voltage is too low to connect to the grid. The
device checks the grid parameters before the feed-in process.
The length of time it takes to switch back on again differs from
country to country, depending on applicable standards and
regulations, and may be several minutes. The starting voltage
may be set incorrectly.
› Adjust starting voltage in the Parameter menu.
E
Battery is deep discharged. Inform the battery manufacturer in
order to test the battery.
B
The device is not receiv-
ing a start command
from the EMS. The re-
quired parameters have
not yet been sent to the
device from the EMS.
To operate the device, an EMS is required that controls the bid-
irectional feed-in inverter and sends the performance data to
the device.
Check the connection of the device to the EMS.
E
Please inform your system manufacturer in order to test the
EMS.
B
Noise emission from the
device.
When there are certain ambient conditions, the devices may
emit audible noises. Grid interference or grid failure caused by
particular loads (motors, machines, etc.) which are either con-
nected to the same point on the grid or located in the vicinity
of the device. Under particular grid conditions, resonances may
form between the device’s input filter and the grid; these may
be audible even when the device is switched off. These noise
emissions do not affect the operation of the device. They do
not lead to loss of performance, failure, damage or to a short-
ening of the device’s service life. People with very sensitive
hearing (particularly children) are able to hear the high-fre-
quency hum caused by the device’s operating frequency of ap-
proximately 17 kHz.
› No action.
Despite the power re-
quirement, the device
does not charge or dis-
charge the battery with
the required power
The device is too hot
and the system limits
the power.
Because the temperatures inside the device are too high, the
device reduces its power to prevent damage to the device.
Note the technical data. Ensure that the convection cooling is
not impeded from the exterior. Do not cover the cooling fins.
› Ensure sufficient cooling of the device.
B
› Remove any foreign bodies which are present on the device. B
› Clean the cooling fins
E
Device self-limits to pro-
tect the battery.
When the max. charging or discharging current parameterised
by the EMS is exceeded, and when the end-of-discharge
voltage or end-of-charge voltage is exceeded, the device self-
limits to protect the battery.
No action
DC breaker is tripped.
DC breaker specifica-
tions are too low.
With high charge or discharge output levels, the DC current ex-
ceeds the trigger value of the DC breaker.
Select a fuse by referring to Section 7.2.1 Supply line and fuse
requirements.
E
Hardware damage on
the device
If the DC breaker trips immediately when the device is connec-
ted to the battery, there may be hardware damage present.
Please inform your system manufacturer in order to test the
hardware.
B
Tab. 8:
Troubleshooting
B = Operator’s responsibility ; E = The indicated work may only be carried out by an authorised electrician. ; K= The indic-
ated work is only permitted to be carried out by the system integrator!
KACO blueplanet gridsave 50.0TL3-S
Page 76
EN