SMA SC 500HE-20 Installation - Manual (Page 64)

12 Commissioning SMA Solar Technology AG
64 SCxxxHE-20-IA-IEN111210 Installation Manual
4. Check the 3 indicator lamps on the 3 printed circuit
boards of the power units in the inverter cabinet.
☑ Indicator lights glow green.
✖ Are indicator lights not glowing green?
• Contact the SMA Serviceline.
12.7 Switching on the Inverter
Requirements:
☐ All electrical connections made on site are correctly executed and firmly in place.
☐ The entire electrical system including the PV plant has been tested by the plant installer in
accordance with IEC 60364-600 "Low-voltage electrical installations – Part 6: Verification".
☐ A test protocol of the tests performed in accordance with IEC 60364-600 is available.
☐ If a medium-voltage system is present, further tests have been performed.
☐ The ground resistance of the plant has been measured.
☐ All values measured are within the permissible range.
☐ The inverter doors are closed.
• Turn the key switch to Start.
☑ The DC switch switches on with an audible click.
☑ Under conditions of sufficient irradiation, the inverter starts feeding into the grid.
✖ Are the display or indicator lamps showing an fault?
• Follow the operating manual for troubleshooting.
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Danger to life through electric shock in the event of improper use or unauthorized
opening of the inverter.
High voltages are present in the inverter during operation.
• Do not operate the inverter while the door is open.
• Remove the keys from the door locks on the inverter station.
• Keep the keys in a safe place.