AC Voltage Configuration Locating Internal Components
4-2 SMA America SB3000US-4000US-11-SE1607
Locating Internal Components
Figure 4-1 illustrates the locations of the major internal components of the Sunny
Boy. Refer to this illustration as needed to locate particular components.
Figure 4-1 Sunny Boy Internal Components
Status LEDs
Display
Terminal for optional
communication
(RS-485)
Output
AC Line
Terminals
(N, L1 and L2)
Sockets for optional
communication Piggy-Back
(RS-485 or radio)
Ground
Terminal (PE)
Firmware EEPROM
DC–
Terminal
(input from PV
array)
DC+
Terminal
(input from PV
array)
Output AC Line
Terminals
( L1, L2, N and L2)
PV RETURN Terminal
(input from PV array)
PV HOT Terminal
(input from PV array)
Flat connection
for grounding
the cable
shield for
communication