KACO blueplanet 1502xi - Manual (Page 46)

Page 43 43 31000770-02-112609 blueplanet Operating and Installation Instructions 1502xi - 5002xi
9 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 equipment.
If your photovoltaic installation does not function properly despite these measures, we suggest the following troubleshooting 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 voltage 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 separation 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 interrupted
the grid-feed due to a line
failure. Due to a line failure (line impedance too high, over/undervoltage, 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 protection 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 9 · Troubleshooting