Kaco blueplanet 87.0 TL3 Manual page 94

Fault Possible cause
The LEDs do not light up Grid voltage not avail-
able
The device stops feeding Defective circuit-break-
into the grid shortly ers in the device
after being switched on,
even though there is
sunlight present.
Device is active but not Grid-feed is interrupted
connected to the grid. A due to a grid fault.
grid fault is displayed on
the status LED.
The grid fuse trips. The grid fuse capacity is
too low.
The grid fuse trips. Hardware damage on
the device.
The device is displaying Faults in the grid.
an impossible daily peak
value.
Daily yields do not cor- Tolerances of the meas-
respond to the yields on uring elements in the
the feed-in meter. device.
Device is active but not Generator voltage too
connected to the grid. low; grid voltage or PV
generator voltage un-
stable.
Page 94
Explanation/remedy
› Check whether the DC and AC voltages are within the permit-
ted limits (see Technical Data)
› Notify KACO Service.
If the circuit-breakers are defective, the device will recognize
this during the self-test.
› Ensure that there is sufficient PV generator power.
› If the grid separation relay is defective, have it replaced by
KACO Service.
› Notify KACO Service.
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).
In case of a high level of solar radiation, the inverter exceeds its
rated current for a short period, depending on the PV gener-
ator.
Select the capacity of the device's backup fuse to be somewhat
higher than the maximum feed-in current (see the "Installa-
tion" section).
› Contact the grid operator if the grid failure continues to oc-
cur.
If the grid fuse trips immediately when the device goes into
feed-in mode (after the start-up period is complete), the
device's hardware is probably damaged.
› Contact KACO Service to test the hardware.
The device continues to operate as normal without losses to
the yield, even when an erroneous daily peak value is dis-
played. The value is reset overnight.
To reset the value immediately, switch the device off by dis-
connecting it from the grid and switching off the DC, then
switch it back on.
The measuring elements of the device have been selected to
ensure maximum yields. Due to these tolerances, the daily
yields shown may deviate from the values on the feed-in meter
by up to 15%.
› No action.
The PV generator voltage or power is not sufficient for feed-in
(solar radiation is too low). The inverter checks the grid para-
meters before the feed-in process begins. 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 have been set in-
correctly.
› Adjust starting voltage in the Parameter menu.
› No action
KACO blueplanet 87.0 TL3 KACO blueplanet 92.0 TL3 KACO blueplanet 110 TL3 KACO blueplanet 125 TL3
KACO blueplanet 137 TL3 KACO blueplanet 150 TL3
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