SMA SB 1200 Installation - Manual (Page 13)

SMA Solar Technology AG Safety
Installation Guide SB12-17-IA-en-52 13
2.3 Explanation of Symbols
This chapter contains an explanation of all symbols found on the inverter and type label.
2.3.1 Symbols on the Inverter
Symbol Explanation
Operation display.
Indicates the operation condition of the inverter.
Ground fault or varistor defective.
Read section 9.3 ”Red LED is Glowing Continuously” (page 56).
Disturbance or fault.
Read section 9 ”Failure Search” (page 52).
You can operate the display by tapping it:
• 1 tap: the backlight is switched on, or the display switches to the next
screen.
• 2 taps in quick succession: the inverter shows the display messages
from the initialization phase again (see section 6.2 ”Display
Messages during Initialization” (page 39)).
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 first pull out the Electronic Solar Switch
and then remove all DC plug connectors , as described in section
7.2 ”Opening the Inverter” (page 45).