Connection Procedure - SMA Sunny Boy 1100 Installation Manual

SMA Solar Technology AG

Connection Procedure

DANGER!
Danger to life due to high voltages on the Sunny Boy!
• Before connecting the PV generator, ensure that the line circuit breaker is switched
off.
1. Remove the Electronic Solar Switch on the
underside of the Sunny Boy.
2. Check the connection cables of the PV modules for the correct polarity and compliance with the
maximum input voltage of 400 V (DC).
NOTICE!
Exceeding the maximum input voltage can destroy the Sunny Boy!
If the voltage of the PV modules exceeds the maximum input voltage of the Sunny Boy, it
can be destroyed by the overvoltage. All warranty claims become void.
• Do not connect strings to the Sunny Boy with open circuit voltage greater than the
maximum input voltage of the Sunny Boy.
• Check the system design.
3. Check strings for ground faults as described in
section 9.1.1 „Checking the PV Generator for
Ground Fault" (34).
DANGER!
Risk of lethal electric shock!
• Do not connect any strings in which you have detected a ground fault!
Installation Guide
Electrical Connection
PE
SB11_17-IEN084820 17