Kaco 2901xi Operator Instructions Manual - page 6
KACO
Solar
Inc.
5
Operator’s
Instructions
blue
planet
4.2
Overview of blueplanet bottom plate
Figure 4.2: Overview of blueplanet bottom plate
Captions
4 Knock outs for AC connection
5 Start key
This key is used to activate the display messages at the end
of the day when the inverter has shut down.
6 RS232 serial interface
7 Knock out for RS485 interface cable
8 Knock out for DC connection
4.3 LED
displays
Under normal operating conditions the photovoltaic modules
will start to generate voltage as soon as enough daylight or
sunlight is available. If a certain amount of voltage is applied
to the inverter for a certain period of time, the inverter will
start the grid-feeding process. The inverter is equipped with
three LEDs, which provide information about the different
modes of operation as follows:
Figure 4.3: LED displays
Captions
1 LED DC Power In (1) (green)
2 LED AC Power out (2) (green)
3 LED Error (3) (red)
LED DC Power In (1) (green):
This LED is illuminated from a generator voltage of approx.
100V onward and extinguishes as soon as the generator
voltage falls below 80V. The DC Power In LED signals that
the inverter is in its active state and the inverter controls are
enabled. If this LED is not lit up the inverter will not be able
to start grid feeding. Under normal operating conditions the
LED is illuminated in the morning when there is enough
daylight, and extinguishes again when it gets dark.
LED AC Power out (2) (green):
This LED is illuminated during the grid feeding process. To
this effect, the generator voltage must first exceed a value
of 125V (factory setting) for 3 minutes, ensuring that the PV
generator provides enough power. This means that the “AC
Power out“ LED is not lit up unless the DC Power In LED is
illuminated.
Under normal operating conditions the inverter starts grid
feeding in the morning and terminates this process as it
becomes dark. On cloudy days or during the winter months
the grid feeding process can be interrupted at certain times,
depending on the PV generator and the actual grid feeding
capacity, and can be resumed later on. This process might
be repeated several times throughout the day, especially in
the morning and evening. This is not a sign of faulty
operation but is normal operating behavior.
Error LED (3) (red):
This LED indicates that the grid-feeding process has been
terminated as a result of a malfunction/error.
The “Error” LED is activated in the following cases:
- Grid overvoltage or low voltage
- Excessive generator voltage
- Excessive generator power
- High-temperature shutdown
Please wait for approx. 10 minutes to verify if the
malfunction is only temporarily. If not, please contact your
authorized electrician. On elimination of the error the grid-
feeding process is re-started after approx. 5 minutes.
Please check whether the cause of your error is a general
power failure or if the fuse between the power meter and
inverter has blown. In the event of a fuse failure please
contact your authorized electrician. In case of a general
power grid failure please wait until the problem has been
resolved. The inverter will restart automatically.
4.4
The “Display” and “Adjustment” buttons
Figure 4.4: Operating keys of the blueplanet xi-series
Captions
1 Display key
2 Adjustment key
The “Display” key (1) is used to toggle between the various
read values and data. Using the “Adjustment” key (2) you
may change the setting parameters, such as date and hour.
The menu guidance is subdivided into two levels. Level 1
(display mode) is used to display the measured values, e.g.
Important!
During Utility Company power failure
(power failure in the public grid) the
“Error” LED is not lit up. In this case
all LEDs and the display are
deactivated and the inverter is
completely shut down.
Only after the Utility Company power
has returned can the inverter resume
its normal operation.
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