KACO blueplanet 1502x - Manual (Page 25)

blueplanet Installation Instructions 1502x - 5002x Page 25
8 Troubleshooting
In line with our continuously expanding quality assurance system, we endeavor to eliminate all errors and faults. You have
purchased a product which left our factory in proper working condition. Each individual unit has successfully passed an
endurance test as well as extensive tests for the purpose of assessing the operating behavior and the protective equip-
ment.
If your photovoltaic installation does not function properly despite these measures, we suggest the following trouble-
shooting procedures:The first step is to check that the solar generator and grid connections are properly connected to
the blueplanet. In doing so, observe all the safety instructions specified in this manual. Monitor the inverter closely and,
where applicable, make a note of the displays and LEDs.
The following faults may occur and should be remedied as described.
Error Cause of error Troubleshooting/Explanation
The display is blank
and the LEDs are not
lighting up.
– There is no line voltage.
– The solar generator
voltage is too low.
The inverter switches to night shutdown mode as soon as the
solar generator voltage is below the minimum grid-feed voltage
for a longer period of time. For this reason, check first to see if the
solar generator voltage is sufficiently high. The inverter changes
to stand-by status once 80 % of the minimum grid-feed voltage
is reached. Check the AC voltage as well. The permissible vol-
tage ranges for grid-feed can be found in the technical data.
If despite these measures the display stays blank, please contact
KACO new energy service.
The inverter stops
supplying power to
the grid shortly after
being switched on,
even though there is
sufficient sunlight.
Faulty grid separation
relay in the inverter.
Although there is sufficient sunlight, the inverter feeds into the
grid only for a few seconds before switching off again. During
the short grid-feed period, the inverter shows that the power
being fed into the grid is between 0 and 5 W. If the inverter is
definitely receiving sufficient generator power, the grid separa-
tion relay is presumably faulty, thus preventing the inverter from
connecting. Please contact KACO new energy service.
The inverter is active
but does not feed into
the grid. The display
indicates a line failure.
The inverter has interrup-
ted the grid-feed due to a
line failure.
Due to a line failure (line impedance too high, over/undervol-
tage, over/underfrequency), the inverter stopped the grid-feed
and disconnected from the low-voltage grid for safety reasons.
Many grid parameters can be changed within the permissible
operating limits. More information can be found in the section
“Starting up the inverter”. If the line failure exists for a long time,
please contact the grid operator.
The line overcurrent
protection trips.
The line overcurrent
protection capacity is too
low.
In cases of high insolation, the inverter can – depending on the
solar generator – exceed its rated current for a short period. For
this reason, the capacity of the inverter’s overcurrent protec-
tion should be somewhat higher than the maximum grid-feed
current. You can find a dimensioning of the line overcurrent
protection in the section “Installation and Start-Up”.
The line overcurrent
protection trips.
Damage to the inverter’s
hardware.
If the line overcurrent protection immediately trips when the
inverter switches to grid-feed mode (after the start-up period is
complete), the inverter’s hardware is possibly damaged.
Please contact KACO new energy service.
If the measures described in this guide do not assist in clearing the fault, please notify KACO technical support at +1
(866) 522-6765.
In order for our factory customer service department to respond in an appropriate and expeditious manner, some
details are imperative:
Details pertaining to the inverter
– The unit’s serial number
– Model
– A short description of the error and error code if applicable
– Is the error reproducible? If yes, how?
– Does the error occur sporadically?
– Describe the prevailing insolation conditions when the error occurred?
– Time of day
Section 8 · Troubleshooting