KACO blueplanet 1502xi - Manual (Page 13)

blueplanet Operating and Installation Instructions 1502x - 2502x Page 15
Troubleshooting
Error Cause of error Troubleshooting/Explanation
The inverter stops sup-
plying power to the grid
shortly after being switched
on, even though there is
suffi cient sunlight. Faulty grid separation relay in
the inverter. Although there is suffi cient 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 defi nitely receiving
suffi cient generator power, the grid separation relay is presumably
faulty, thus preventing the inverter from connecting. Please contact
your solar installer.
The line fuse trips. The line fuse capacity is too
low.
Damage to the inverter’s
hardware. 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 pre-fuse should be somewhat
higher than the maximum grid-feed current.
If the line fuse immediately trips when the inverter switches to
grid-feed mode (after the start-up period is complete), the inverter’s
hardware is probably damaged. Contact your solar installer.
Noise emission from the
inverter. Particular ambient conditions. When there are certain ambient conditions, the units may emit
audible noises. The following causes may be determining factors in
this regard:
– Line interference or line failure caused by particular loads (motors,
machines, etc.) which are either connected to the same point on the
grid or located in the vicinity of the inverter.
– In cases of dynamic weather conditions (frequent switching between
sunny and cloudy conditions) or strong solar insolation, a light hum
may be audible due to the high output.
– With particular grid conditions, resonances may form between the
unit’s input fi lter and the grid, which may be audible even when the
inverter is switched off.
– People with very sensitive hearing (particularly children) may be able
to hear the high-frequency hum caused by the inverter’s operating
frequency of approx. 17 kHz.
Such noise emissions do not affect the operation of the inverter. Nor
can they lead to loss of effi ciency, failure, damage or to a shortening
of the unit’s service life.
In spite of high insolation,
the inverter does not feed
in the maximum power into
low-voltage grid. Unit is too hot and
the power is reduced. The temperature inside the unit became too high. The inverter
reduced the power to prevent damage to the unit. Above an internal
temperature of 167 °F, the inverter limits the power and levels off at
a temperature of 185 °F. An internal temperature of 185 °F is only
reached if convection cooling is impeded by external factors, e. g. by
covering the cooling fi ns. Provide for suffi cient cooling of the unit.
Table 3: Troubleshooting
If the measures described in this guide do not assist in clearing
the fault, please notify your installer.
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
– Is the error reproducible? If yes, how?
– Does the error occur sporadically?
– Describe the prevailing insolation conditions when the
error occurred?
– Time of day
Details pertaining to the photovoltaic module
– Module type, manufacturer (if available, also send the
data sheet)
– The number of modules in series
– The number of strings
– Generator power