SMA Power Control Module
The SMA Power Control Module enables the inverter to implement grid management services and
is equipped with an additional multifunction relay (for information on installation and configuration,
see the installation manual of the SMA Power Control Module). The SMA Power Control Module
can be retrofitted.
Multifunction Relay
You can configure the multifunction relay for various operating modes. The multifunction relay is
used, for example, to switch fault indicators on or off (for information on installation and
configuration, see the installation manual of the multifunction relay). The multifunction relay can be
retrofitted.
SMA OptiTrac Global Peak
SMA OptiTrac Global Peak is an advancement of SMA OptiTrac and allows the operating point of
the inverter to follow the MPP precisely at all times. In addition, with the aid of
SMA OptiTrac Global Peak, the inverter can detect the presence of several maximum power points
in the available operating range, such as may occur particularly with partially shaded strings. SMA
OptiTrac Global Peak is enabled by default.
Surge Arrester Type II
The surge arresters monitor the PV modules and limit dangerous overvoltages. Surge arresters of
type II can be retrofitted.
4 Product Description
SMA Solar Technology AG
Operating Manual
15
STP20-25TL-BE-en-11
