KACO blueplanet 1502x - Manual (Page 15)

blueplanet Operating Instructions 1502x - 5002x Page 15
Section 6 · Troubleshooting
Error Cause of error Troubleshooting/Explanation
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
filter 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 efficiency, 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 158 °F,
the inverter limits the power and levels off at a temperature between 158 °C
and 176 °C. An internal temperature of 185 °C is only reached if convection cool-
ing is impeded by external factors, e. g. by covering the cooling fins. Provide
for sufficient cooling of the unit.
Table 6.1: 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