SMA STP 15000TL - Manual (Page 49)

9. Use an appropriate measuring device to ensure that no voltage is present at the AC
connecting terminal plate between L1 and PE, L2 and PE, and L3 and PE. Insert the test
probe into each round opening of the terminal.
10. If you are using the multifunction relay, ensure that no voltage is present between any of the
terminals on the multifunction relay and PE on the AC connecting terminal plate.
11. Use a current clamp to ensure that no current is present in the DC cables.
12. Release and remove all DC connectors. To do this, insert a flat-blade screwdriver or an angled
screwdriver (blade width: 3.5 mm) into one of the side slots and pull the DC connectors
straight out. Do not pull on the cable.
13.
Danger to life due to high voltages in the inverter
The capacitors in the inverter take 20 minutes to discharge.
• Wait 20 minutes before opening the upper enclosure lid.
• Do not open the DC protective cover.
14.
Damage to the inverter due to electrostatic discharge
Touching electronic components can cause damage to or destroy the inverter through
electrostatic discharge.
• Ground yourself before touching any component.
10 Disconnecting the Inverter from Voltage Sources SMA Solar Technology AG
Operating Manual 49 STP15-17TL-10-BE-en-10