48 SB3-5TL-21-BE-en-10 Operating Manual
10 Disconnecting the Inverter from Voltage Sources SMA Solar Technology AG
9. Ensure that no voltage is present at the DC inputs of the inverter.
10. Ensure that no voltage is present between L and N and L and PE on the AC connecting terminal
plate using a suitable measuring device. Insert the test probe (maximum diameter: 2 mm) in
each round opening of the terminal.
11. Flip the display up to have more space to make the measurement. Loosen the screw on the
display to do this.
☑ The display clicks into place.
12. Ensure that there is no voltage between any terminal of the multi-function relay and PE of the
AC connecting terminal plate.
8. Release and disconnect all DC connectors.
To do so, insert a screwdriver or an angled
screwdriver (blade width: 3.5 mm) into one of
the side slots and pull the DC connectors straight
down. Do not pull on the cable.
13.
Damage to the inverter due to electrostatic discharge
The internal components of the inverter can be irreparably damaged by electrostatic discharge.
• Ground yourself before touching any components.
To Next Page
Loading...
