SMA SUNNY BOY 4000TL - Explanation of Symbols; Symbols on the Inverter

Safety SMA Solar Technology AG
12 SB30TL_40TL_50TL-IA-IEN120231 Installation Guide
2.3 Explanation of Symbols
This section gives an explanation of all the symbols found on the inverter and on the type label.
2.3.1 Symbols on the Inverter
Icon Explanation
Operation Display.
Indicates the operation condition of the inverter.
An error has occurred.
Read section 11”Troubleshooting” (page79) to remedy the error.
Tap to switch on the display light and switch to the next display
message.
Bluetooth
®
Wireless Technology.
Shows the status of Bluetooth Communication.
Electronic Solar Switch (ESS) DC load disconnection unit
• When the Electronic Solar Switch is plugged in, the DC circuit
is closed.
• To interrupt the DC circuit and disconnect the inverter securely
under load, you have to disconnect the inverter as described
in section 7.2”Opening the Inverter” (page61).