SMA 20000TL User Manual
Page 15
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 detects 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
Surge arresters limit dangerous overvoltages. Surge arresters of type II can be retrofitted (for details
on the installation refer to the service manual of the inverter at
Q on Demand 24/7
The inverter can supply reactive power by means of Q on Demand 24/7 covering the entire unit
circle around the clock (for details on the configuration refer to the Technical Information
"Integrated Plant Control and Q on Demand 24/7").
Integrated Plant Control
The inverter can display the Q(V) characteristic curve specified by the grid operator by means of
Integrated Plant Control without measuring on the grid-connection point. The inverter can
automatically compensate equipment installed between the inverter and the grid-connection point
after having activated the function (for information on the system configuration refer to the Technical
Information "Integrated Plant Control and Q on Demand 24/7").
4 Product Description
SMA Solar Technology AG
Operating Manual
15
STP20-25TL-BE-en-12