KACO Powador 10.0 - 20.0 TL3 - Manual (Page 45)

EN
Maintenance/Troubleshooting
Operating Instructions Powador 12.0 TL3-20.0 TL3 Page 45
CAUTION
Destruction of the DC connection
The connection terminals can be destroyed by arcing if disconnected while still live.
› It is absolutely essential that the shutdown sequence be carried out in the correct order.
Shutting down the inverter
1. Switch off the grid voltage by turning off the external circuit breakers.
2. Disconnect the PV generator using the DC isolator switch.
DANGER! The DC cables are still live.
" Ensure that there is no voltage present on the grid connection terminals.
9.4 Faults
9.4.1 Procedure
DANGER
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 may occur if the cables and terminals in the inverter are touched.
" 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.
" 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.
9.4.2 Troubleshooting
Fault Cause of fault Explanation/remedy By
The display is
blank and the LEDs
do not light up.
Grid voltage not
available
" Check whether the DC and AC voltages are within the
permitted limits (see Technical Data).
E
" Notify KACO Service. E
The inverter stops
feeding into the
grid shortly after
being switched
on, even though
there is sunlight
present.
Faulty grid
separation relay in
the inverter.
If the grid separation relay is defective, the inverter will
recognise this during the self-test.
" Ensure that there is sufficient PV generator power. E
" If the grid separation relay is defective, have it replaced by
KACO Service.
" Notify KACO Service.
K