SMA SUNNY TRIPOWER CORE1 - Setting SMA Optitrac Global Peak; Setting the Rated Residual Current of the Residual-Current Device; Activating String-Failure Detection

8 Operation
SMA Solar Technology AG
Operating manual STP50-40-BE-en-15 75
8.19 Setting SMA OptiTrac Global Peak
For partially shaded PV modules, you should set the interval at which the inverter is to optimize the
MPP of the PV system. If you do not want to use SMAOptiTracGlobalPeak feature, you can
deactivate the feature.
The basic procedure for changing operating parameters is explained in another section (see
Section8.12 "Changing Operating Parameters", page69).
Procedure:
• In the parameter group DC-side > DC settings > OptiTrac Global Peak, set the parameter
Cycle time of the OptiTrac Global Peak algorithm and set the required time interval. The
ideal time interval is usually six minutes. This value should only be increased if the shading
situation changes extremely slowly.
☑ The inverter optimizes the MPP of the PV system at the predetermined time interval.
• In order to deactivate the SMAOptiTracGlobalPeak feature, in the parameter group DC-
side > DC settings > OptiTrac Global Peak, set the parameter OptiTrac Global Peak
switched on to Off.
8.20 Setting the Rated Residual Current of the Residual-
Current Device
When using residual-current devices with a rated residual current of <500mA, set the rated
residual current to the respective value in the inverter. In this way the inverter reduces the
operational leakage currents and prevents a false triggering of the residual-current device (further
information see technical information "Leading Leakage Currents" at www.SMA-Solar.com).
The basic procedure for changing operating parameters is explained in another section (see
Section8.12 "Changing Operating Parameters", page69).
Procedure:
• In the parameter group Device > Inverter, select the parameter RCD adjustment and set it
to the rated residual current of the residual-current device that is used.
8.21 Activating String-Failure Detection
1. Activate the user interface (see Section8.2, page56).
2. Log into the user interface as an Installer.
3. On the right-hand side of the menu bar, select the menu User Settings (see Section8.4 "Start
Page Design of the User Interface", page62).
4. In the context menu, select [Starting the installation assistant].