SMA SB 2500 Installation - Manual (Page 12)

Safety SMA Solar Technology AG
12 SB25-30-IA-en-51 Installation Manual
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
* This function is valid from firmware version 4.00, not for SB 2500-IT/3000-IT
** Optional
*** QR-Code is a registered trademark of DENSO WAVE INCORPORATED.
Symbol Explanation
Operation display
Indicates the operating state of the inverter.
Ground fault or varistor defective
Read Section 9.3 "Red LED is Permanently Lit" (page 55).
Error or fault
Read Section 9 "Troubleshooting" (page 51).
You can operate the display by tapping on the enclosure lid:
• Tapping once: the backlight switches on or the display scrolls to the
next display message.
• Tapping twice in quick succession*: the inverter shows the display
messages from the startup phase again (see Section 6.2 "Display
Messages during the Startup Phase" (page 38)).
DC switch-disconnector Electronic Solar Switch (ESS)**
• When the Electronic Solar Switch is plugged in, the electric DC
circuit is closed.
• To interrupt the electric DC circuit and disconnect the inverter
securely under load, you have to first pull out the Electronic Solar
Switch
and then remove all DC connectors as described in
Section 7.2 "Opening the Inverter" (page 44).
QR-Code ® *** for SMA bonus program
You will find information on the SMA bonus programme at
www.SMA-Bonus.com.