Faults - Kaco Powador 12.0 TL3 - INT Operating Manual

Maintenance/Troubleshooting
Disconnect DC plug connection
EN EN
Ensure there is no AC/DC voltage present.
1. Disconnect the PV generator using the DC isolator switch.
2. Use a screwdriver (blade width 3 mm) to push down the latch on the coupling.
3. Leave the screwdriver in place.
4. Disconnect the DC connector from the DC socket.
DANGER! The DC cables are still live.
Ensure that there is no voltage present on the grid connection terminals.
9.6

Faults

9.6.1 Procedure
Lethal voltages are still present in the terminals and cables of the inverter even after the
inverter has been switched off and disconnected.
Severe injuries or death will occur when touching the cables and terminals in the inverter.
In case of power failure, wait for the system to automatically restart.
Notify your electrician if there is an extended power failure.
B = Action of the operator
E = The indicated work may only be carried out by an authorised electrician.
K = The indicated work may only be carried out by a service employee of KACO new energy GmbH!
9.6.2 Rectifying a fault
Fault
The display is
blank and the
LEDs do not light
up.
The inverter stops
feeding into the
grid shortly after
being switched
on, even though
there is sunlight
present.
The inverter is
active but is not
feeding into the
grid. The display
indicates a line
failure.
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DANGER
When a fault occurs, notify an appropriately authorised and qualified electrician or KACO new
energy GmbH Service.
The operator can only carry out actions marked with a B.
Cause of fault Explanation/remedy
Grid voltage not
available
Faulty grid sepa- If the grid separation relay is defective, the inverter will recog-
ration relay in the nise this during the self-test.
inverter.
Grid-feed is inter- Due to a grid fault (grid impedance too high, over/undervolt-
rupted due to a age, over/underfrequency), the inverter stopped the feed-in
grid fault. process and disconnected from the grid for safety reasons.
Check whether the DC and AC voltages are within the per-
mitted limits (see Technical Data).
Notify KACO Service.
Ensure that there is sufficient PV generator power.
If the grid separation relay is defective, have it replaced by
KACO Service.
Notify KACO Service.
Change the line parameters within the permitted operat-
ing limits (see the "Start-Up" section).
Operating Instructions Powador 12.0 TL3-20.0 TL3
By
E
E
E
K
E