KACO Powador 3200 - 6600 - Manual (Page 43)

EN
Maintenance/Troubleshooting
Page 43 Operating Instructions for Powador 3200-6600_EN
Authorised electrician
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.
9.4.2 Troubleshooting
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.
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 sepa-
ration relay in the
inverter.
If the grid separation relay is defective, the inverter will rec-
ognise 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.
E
The inverter is
active but is not
feeding into the
grid. The display
indicates a line
failure.
Grid-feed is inter-
rupted due to a
grid fault.
Due to a grid fault (over/undervoltage, over/underfre-
quency), the inverter stopped the feed-in process and discon-
nected from the grid for safety reasons.
" Change the line parameters within the permitted operat-
ing limits (see the “Start-Up” section).
E
The grid fuse trips. The grid fuse
capacity is too low.
In cases of high solar radiation, the inverter exceeds its rated
current for a short period, depending on the PV generator.
" Select the capacity of the inverter’s pre-fuse to be some-
what higher than the maximum feed-in current (see the
“Installation” section).
E
" Contact the grid operator if the grid failure continues to
occur.
E
Table 6: Troubleshooting