Sunny Boy 2500U
Installation and Operator’s Manual
SB2500U-11:NE
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39
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SMA Regelsysteme GmbH
4.5 Upgrading or modification of the Sunny Boy interface
The Sunny Boy is prepared for data transmission. By simply plugging on a piggy back
module it supports transmission via Powerline, RS232 or RS485 interfaces.
In order to install a new interface in the Sunny Boy a corresponding piggy back module
has to be installed on the system control board.
WARNING:
Follow all relevant instructions in chapters 2.3, “Electric Con-
nection”, 3, “Commissioning”, 4.4, “Opening and closing of the Sunny Boy”
in the Sunny Boy manual.
WARNING:
The Sunny Boy works with high voltages externally and inter-
nally which can cause considerable harm to people. Only a qualified elec-
trician may work on the device, especially open it!
While upgrading the Sunny Boy interface the operator can get into touch both with elec-
tronic components and components carrying lethal voltage. Faulty upgrading can lead to
damage at the device and danger to people by electric voltage.
Therefore the device may only be upgraded by qualified personnel or the SMA service.
WARNING:
Only work on the Sunny Boy when it is disconnected from the
grid and is sufficiently discharged!
Follow ESD protection countermeasures when modifying the Sunny Boy:
Electronic components are sensitive to electrostatic discharge. To protect them you have
to be on the same electric potential. Discharge the electrostatic charge by touching the
grounded case before touching an electronic component, otherwise you run a great risk
in destroying your electronics.
