Kaco blueplanet gridsave 50.0TL3-S Series, Manual, Page: 9 / 83

3 Description of the device
3.1 Mode of operation
An external EMS/PMS
1
is required to operate the device. The EMS/PMS must be provided by the customer/system integ-
rator. Modbus TCP is the sole means of communication with the device.
The necessary commands and data points are described in the SunSpec Protocol description About this document [See
section 1.1
} Page 4].
The shutdown threshold (DC-Min.) is dynamically determined by the device on the basis of the current grid voltage. After
shutting down the device, it is therefore not possible to guarantee reconnection as there may be a change in the grid
voltage.
After a continuous operation period >23 days, the device disconnects from the grid at midnight and performs a restart in-
cluding a self-test.
3.2 Device diagram
5
6
7
1
4
8
2
3
Fig. 3: Device diagram
1 Housing 5 DC connection / cable feed-through
2 Housing door 6 Interfaces / cable feed-through
3 Status indicator with display and operator panel 7 Communication - USB port / cable feed-through
4 Mount with fan 8 AC connection / cable feed-through
3.2.1 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.
1
Energy management system/power management system
KACO blueplanet gridsave 50.0TL3-S
Page 9
EN