9 Opening and Closing SMA Solar Technology AG
66 SB30-50TL-21-IA-en-21 Installation Manual
11. Loosen the screw on the display and flip the display
up until it clicks into place.
12. Verify the absence of voltage in the multi-function
relay against PE at all terminals. The maximum
diameter of the test probe is 2 mm.
☑If voltage is present, check the installation.
☑ The inverter is open and no voltage is present.