SMA MEDIUM VOLTAGE POWER STATION 500SC-JP - Setting the Medium Voltage; Setting the Remote Shutdown; Setting the String Current Monitoring; Detecting the Sunny Central String-Monitor Controller and the Inverter

6.5.9.3 Setting the Medium Voltage
The line-to-line voltage of the overvoltage side of the MV transformer (parameter TrfVolExlHi) has to be adapted to
the nominal conductor voltage of the utility grid (parameter VRtg). It is important that the transmission ratio of the
external MV transformer is adjusted at the same time. The undervoltage side is already preset for the specific device.
Procedure:
1. Call up the parameter overview (see Section12.8.3, page178).
2. Set the parameter TrfVolExlHi.
3. Set the parameter VRtg.
4. Save the parameter changes (see Section12.8.4, page178).
6.5.10 Setting the Remote Shutdown
1. Call up the parameter overview (see Section12.8.3, page178).
2. To activate remote shutdown, set the parameter ExlStrStpEna to On (see Section13.2.1.2, page184).
3. To deactivate remote shutdown, set the parameter ExlStrStpEna to Off (see Section13.2.1.2, page184).
4. Save the parameter changes (see Section12.8.4, page178).
6.5.11 Setting the String Current Monitoring
6.5.11.1 Detecting the SunnyCentralString-MonitorController and the Inverter
1. Log into the user interface (see Section12.8.1, page177).
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.
6.5.11.2 Setting the Date and Time of the SunnyCentralString-MonitorController
1. Log into the user interface (see Section12.8.1, page177).
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 .
6.5.11.3 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.
6 Commissioning
SMA Solar Technology AG
System ManualMVPS22JP-SH-en-1188