Maintenance/Troubleshooting
Page 54
Operating Instructions KACO blueplanet 29.0TL3
EN
EN
Disconnecting the DC connection (S, M version)
ඣ
Check that there is no current using a clip-on ammeter.
4. Remove the protection against contact from the PV+ and PV- terminal.
1.
Detach the DC cables from the PV+ and PV- terminals on the DC switch (see Figure 50 on page 53).
2. Loosen the cable fitting and pull the PV cable through the cable fitting.
3. Mounting the protection against contact on the PV+ and PV- terminal.
4. Furnish the DC cable ends with protective caps.
9.9 Faults
9.9.1 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 will occur when touching the cables and terminals in the inverter.
"
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.
9.9.2
Rectifying a fault
B = Operator’s responsibility ; 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
Possible cause
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 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 sunlight
present.
Faulty grid sepa-
ration relay in the
inverter.
If the grid separation relay is defective, the inverter will recog-
nise 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 (grid impedance too high, over/undervolt-
age, over/underfrequency), the inverter stopped the feed-in
process and disconnected from the grid for safety reasons.
"
Change the grid parameters within the permitted operat-
ing limits (see the “Start-Up” section).
E
Table 7:
Troubleshooting
