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 Manual
MVPS22JP-SH-en-11
88
Summary of Contents for 1000-1SC
Page 257: ......
