Kaco Powador 3200 Operating Instructions Manual page 48

M a in tenance/Tro u b le s ho ot in g
Authorised electrician
Fault
Cause of fault
The inverter is •
active but does not
feed into the grid.
•
Display: "Waiting for
feed-in"
Noise emission Particular ambient
from the inverter. conditions.
In spite of high The device is too
radiation levels, the hot and the system
inverter does not limits the power.
feed the maximum
power into the grid.
Table 6: Troubleshooting
Page 48
Explanation/remedy
Generator • The PV generator voltage or power is not suffi cient for
voltage too low feed-in (solar radiation is too low).
Grid voltage or • The inverter checks the grid parameters before the feed-in
PV generator process begins. The length of time it takes to switch back
voltage on again diff ers from country to country, depending on
unstable. applicable standards and regulations, and may be several
minutes.
• The starting voltage may have been set incorrectly.
 Adjust starting voltage in the Parameter menu if
required.
When there are certain ambient conditions, the units may
emit audible noises.
• Grid interference or grid 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 volatile weather conditions (frequent switching
between sunny and cloudy conditions) or strong solar
radiation, a light hum may be audible due to the increased
power.
• Under certain 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 .
These noise emissions do not aff ect the operation of the
inverter. They do not lead to loss of effi ciency, failure,
damage or to a shortening of the unit's service life.
People with very sensitive hearing (particularly children) are
able to hear the high-frequency hum caused by the inverter's
operating frequency of approximately 17 kHz.
 No action
Because the temperatures inside the unit are too high, the
inverter reduces its power to prevent damage to the unit.
Note the technical data. Ensure that the convection cooling is
not impeded from the exterior. Do not cover the cooling fi ns.
 Provide for suffi cient cooling of the unit.
 Do not cover the cooling fi ns.
Operating Instructions Powador 3200-6600_EN
By
K
B, E