KACO Powador 16.0 TR3 - Manual (Page 43)

M a i n t e n a n c e / T r o u b l e s h o o t i n g
Page 44 Operating Instructions Powador 16.0 TR3, 18.0 TR3_EN
9.6 Faults
9.6.1 Procedure
DANGER
Lethal voltages are still present in the terminals and leads of the inverter even after the
inverter has been switched off and disconnected.
Severe injuries or death if the leads and terminals in the inverter are touched.
 When a fault occurs, notify an authorised electrician approved by the supply grid operator 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.
9.6.2 Troubleshooting
Fault Cause of fault Explanation/remedy By
The display is
blank and the
LEDs do not
light up. Line voltage not
available  Check whether the DC and AC voltages are within the per-
mitted 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 irradi-
ance. Faulty grid separa-
tion relay in the
inverter.
If the grid separation relay is defective, the inverter will recog-
nize this during the self-test.
 Ensure that there is suffi cient 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 does
not feed into the
grid. The display
indicates a line
failure.
Grid-feed is inter-
rupted due to a
grid fault.
Due to a grid fault (grid impedance too high, over/undervolt-
age, over/underfrequency), the inverter stopped the grid-feed
and disconnected from the grid for safety reasons.
 Change the line parameters within the permitted operat-
ing limits (see the “Start-Up” section).
E
Table 5: Troubleshooting
B = Action of the operator
E = The indicated work must only be carried out by an authorised electrician.
K = The indicated work must only be carried out by a service employee of KACO new energy GmbH.