SMA SUNNY CENTRAL 900CP XT - Setting Project-Specific Parameters; Setting the Remote Shutdown; Deactivating the Fully Hermetic Transformer Protection; Setting the String Current Monitoring

4 Commissioning
SMA Solar Technology AG
User Manual 41SCCPXT-E7-BA-en-58
Procedure:
1. Call up the parameter overview (see Section9.3.1, page78).
2. Set the parameter TrfVolExlHi.
3. Set the parameter VRtg.
4. Save the parameter changes (see Section9.3.2, page78).
4.6.9 Setting Project-Specific Parameters
4.6.9.1 Setting the Remote Shutdown
1. Call up the parameter overview (see Section9.3.1, page78).
2. To activate remote shutdown, set the parameter ExlStrStpEna to On (see Section10.2.1.2, page85).
3. To deactivate remote shutdown, set the parameter ExlStrStpEna to Off (see Section10.2.1.2, page85).
4. Save the parameter changes (see Section9.3.2, page78).
4.6.9.2 Deactivating the "Fully Hermetic" Transformer Protection
1. Call up the parameter overview (see Section9.3.1, page78).
2. Set the parameter ExlTrfErrEna to Off (see Section10.2.2.2 "Transformer Protection", page85)
3. Save the parameter changes (see Section9.3.2, page78).
4.6.10 Setting the String Current Monitoring
4.6.10.1 Detecting the SunnyCentralString-MonitorController and the Inverter
1. Log into the user interface (see Section9.4.1, page78).
2. Select Data > Detection.
3. In the field Total number of devices to be detected, enter the value 2.
4. Select the button [Start detection].
☑ The communication unit starts detecting all inverters and displays its progress. Once all devices have been
detected, the message ### Device detection finished ### is displayed.
☑ The devices have been detected.
4.6.10.2 Setting the Date and Time of the SunnyCentralString-MonitorController
1. Log into the user interface (see Section9.4.1, page78).
2. Select Data > Devices.
3. Select .
☑ A list of the existing device types appears.
4. Select SunnyCentralString-MonitorController.
5. Select the tab Instantaneous values.
6. Make sure that the date SysDt and time SysTm of the SunnyCentralString-MonitorController are correct.
If the settings are incorrect, change the parameters Dt and Tm .
4.6.10.3 Detecting the SunnyString-Monitors via the SunnyCentralString-
MonitorController
It may take several minutes to detect the Sunny String-Monitors, depending on the number of devices and how far
apart they are.
Procedure:
1. Log into the user interface (see Section9.4.1, page78).