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Fault
Possible cause
Explanation/remedy
By
Noise emission from the
device.
Particular ambient con-
ditions.
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 shorte-
ning of the device’s service life. People with very sensitive hea-
ring (particularly children) are able to hear the high-frequency
hum caused by the device’s operating frequency of approxima-
tely 17 kHz.
› No action
In spite of high radiation
levels, the inverter does
not feed the maximum
power into the grid.
Particular ambient con-
ditions.
Because the temperatures inside the device are too high, the
device reduces its power to prevent damage to the device. No-
te 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
DC fuse faulty
A generator string is disconnected from the device owing to a
faulty fuse. Check why it has tripped by measuring all DC
strings using a clip-on ammeter. - If there is no current flow in a
string, the associated DC fuse is faulty.
› Check the no-load voltage and dimensioning of the PV gene-
rator. Replace any damaged modules.
B, E
› Replace the PV fuse with a fuse of the same size and type.
Tab. 6:
Troubleshooting
B = Operator’s responsibility ; E = The indicated work may only be carried out by an authorised electrician. ; K = The indi-
cated work may only be carried out by a service employee of KACO new energy GmbH!
11.9
Fault messages
Many fault signals indicate a fault in the grid. They are not operational faults of the device. The triggering levels are defi-
ned in standards, e.g. VDE0126-1-1. The device shuts down if the values exceed or fall below the approved levels.
Fault LED (red)
Status
Explanation
LED
FS (fault status)
Fault signal relay has been tripped.
To:
Feed-in was ended due to a fault.
OS (operating status)
The fault relay releases again.
Off
The device feeds back into the grid again after a country-
specific time period.
11.10 Troubleshooting
The following table lists the possible status and fault messages, the ProLog© status messages that the device can display
by means of the LC display / web interface and the LEDs.
Kaco blueplanet 29.0TL3
Página 80
ES