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5 Electrical Connection
5.9 Install Anti-Theft Protection
The Sunny String-Monitor allows activation of anti-theft protection for the PV modules. Here, the
contacts at the PV modules are connected to form a signal chain. Upon interruption of the signal chain,
an anti-theft warning appears in the Sunny Central Control display, and an e-mail message is sent
immediately.
Installation of the cable gland and wiring is carried out by the customer.
Maximum Loop Resistance
The signal chain may not exceed a loop resistance of 300 Ohms so as to prevent the
alarm contact from being overloaded.
1. Implement the contacts at the PV modules as NC contacts and connect to form a signal chain.
2. Integrate the signaling contact for the anti-theft protection on the measuring board into the
monitoring circuit (see chapter 5.2 "Overview of the Connection Area", page 21).
5.10 Identification of the Piggy-Back for Data Processing
The serial number serves to identify the Piggy-Backs for data processing. The position of the serial
number depends on the production version of the Piggy-Back for data processing.
All serial numbers of the Piggy-Backs for data processing of the measuring circuit boards in all Sunny
String-Monitor must be written down in the commissioning report. You need the serial numbers for the
settings on the Sunny Central Control and for grouping the individual measuring boards.
Figure 13: Possible position of the serial number
Position
A
B
C
Requirements:
☐ The Sunny String-Monitor is activated (see chapter 6.3 "Disconnecting the Sunny String-
Monitor", page 39).
• Identify the serial numbers and write them down.
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SSM-TEN103132
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Description
Serial number above in the middle line
Serial number in the middle
Serial number below
FA: 2349566
A3
SER: 20326
SMU8HV-DVPB
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SMA Solar Technology AG
Technical Description
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