SMA SSM8-21-BS - Manual (Page 40)

7 Commissioning SMA Solar Technology AG
40 SSMxx-21-IA-BS-JP-en-20 Installation Manual
7.2.3 Noting Down the Serial Number of the String-Monitor Unit
The serial number clearly identifies the String-Monitor Unit. The serial number can be found on the type label at the bottom
right-hand corner of the String-Monitor Unit.
You will need the serial numbers for detecting the String-Monitor Units. All serial numbers of the String-Monitor Units must
be noted in the commissioning report.
Figure 17: Position of the serial number on the String-Monitor Unit
Procedure:
• Identify the serial numbers of the String-Monitor Units and note them in the commissioning report.
7.3 Switching On the Sunny String-Monitor
Requirement:
☐ The String-Monitor Unit is supplied with voltage.
Procedure:
1. Open the fuse holders.
3. Close the fuse holders.
4. Switch on the DC load-break switch.
Position Designation
A Serial number of the String-Monitor Unit
:$51,1*
Fire risk caused by incorrect rating of string fuses or by use of incorrect string fuses
• Ensure that the rating of the string fuses is correct.
• Only install string fuses supplied or approved by SMA Solar Technology AG for Sunny String-Monitors.
2. '$1*(5
Danger to life due to electric shock if live components of the Sunny String-Monitor are touched
• Only insert the string fuses in the Sunny String-Monitor when the power is switched off.