Faults - Kaco blueplanet 29.0 TL3 M1 OD II4S Manual

↻ Switch off DC power supply externally via the combiner box (not supplied) using
the DC isolator switch.
↻ Ensure that there is absolutely no DC voltage present.
1 Remove the protection against contact from the PV+ and PV- terminal.
2 Detach the DC cables from the PV+ and PV- terminals.
3 Loosen the cable fitting and pull the PV cable through the cable fitting.
4 Mount the protection against contact on the PV+ and PV- terminal.
5 Place protective caps on the ends of the DC cables.
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 authorized and qualified electrician or KACO new energy
GmbH Service.
› 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
The display is blank and Grid voltage not avail-
the LEDs do not light up able
The device stops feeding Faulty grid separation
into the grid shortly relay in the device.
after being switched on,
even though there is
sunlight present.
Device is active but is Grid-feed is interrupted
not feeding into the grid. due to a grid fault.
The display indicates a
grid failure.
The grid fuse trips. The grid fuse capacity is
too low.
Page 78
Explanation/remedy
› Check whether the DC and AC voltages are within the permit-
ted limits (see Technical Data)
› Notify KACO Service.
If the grid separation relay is defective, the device will recog-
nise this error 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.
PV + PV- PV +
PV-
Fig. 70: Disconnecting DC cables
Kaco blueplanet 29.0TL3
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