Description Of The Device; Mode Of Operation; Device Diagram - Kaco blueplanet 3.0TL3 Series Manual

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Description of the device

3.1

Mode of operation

The device converts the DC voltage generated by the PV-modules into AC voltage and feeds this into the power grid. The
starting procedure begins when there is sufficient sunlight and a specific minimum voltage is present in the device. The
feed-in process begins once the PV generator has passed the insulation test and the grid parameters are within the re-
quirements imposed by the grid operator for a specific monitoring time. If, as it gets dark, the voltage drops below the
minimum voltage value, feed-in mode ends and the device switches off.
3.2

Device diagram

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1
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Fig. 3: Device diagram
Key
1 Housing
2 Cover
3 Status indicator with display and operator panel
4 Cover for the connection area
5 AC connection / 5-pole connector
3.2.1 Mechanische Komponenten
The DC isolator switch is located on the underside of the device. The DC isolator switch is used to disconnect the inverter
from the PV generator in order to carry out service.
Disconnecting the device from the PV generator
F Switch the DC isolator switches from 1 (ON) to 0 (OFF).
Connecting the device to the PV generator
F Switch the DC isolator switches from 0 (OFF) to 1 (ON).
3.2.2 Electrical functions
A potential-free relay contact is integrated into the device. Use this contact for one of the following functions:
Potential-free relay
The potential-free relay contact closes as soon as there is a fault during operation. You use this function, for example, to
signal a fault visually or acoustically.
KACO blueplanet 3.0TL3 KACO blueplanet 4.0TL3 KACO blueplanet 5.0TL3 KACO blueplanet 6.5TL3 KACO blue-
planet 7.5 TL3 KACO blueplanet 8.6TL3 KACO blueplanet 9.0TL3 KACO blueplanet 10.0TL3
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4
7
8 5
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6 Interfaces / cable feed-through
7 Communication - USB port / cable feed-through
8 DC connection / DC connector
9 DC isolator switch
Fig. 4: DC isolator switch
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