SMA STP 15000TL - Manual (Page 15)

SMA Speedwire/Webconnect enables, for PV systems operated in Italy, the connection to or
disconnection of the inverter from the utility grid and definition of the frequency limits to be used
with IEC61850-GOOSE messages.
SMA Speedwire/Webconnect can be retrofitted.
RS485 interface
The inverter can communicate via cables with special SMA communication products via the RS485
interface (information on supported SMA products at www.SMA-Solar.com). The RS485 interface
can be retrofitted.
Grid Management Services
The inverter is equipped with service functions for grid management.
Depending on the requirements of the grid operator, you can activate and configure the functions
(e.g. active power limitation) via operating parameters.
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 optimal operating point of the PV array (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.
String-failure detection
String-failure detection recognizes the failure of an individual string or substring. If an insulation
error occurs, string-failure detection disconnects the defective string from the inverter. This avoids
having to shut down the entire PV array. In order for the string-failure detection to be reliable,
identically aligned PV modules must be connected to both inputs of the inverter. String-failure
detection is deactivated by default and must be activated.
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 STP15-17TL-10-BE-en-10