SMA NR-STP200IFX-AST Austauschanleitung Seite 13

SMA Solar Technology AG
13. Release and remove the DC connectors. To do so,
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 out. When
doing so, do not lever the DC connectors out, but
insert the tool into one of the side slots only to
release the locking mechanism, and do not pull on
the cable.
14. Ensure that no voltage is present at the DC inputs of the inverter.
15. Use an appropriate measuring device to ensure that
no voltage is present at the AC terminal block
between L1 and N, L2 and N, and L3 and N.
Insert the test probe of the multimeter into the round
opening in the terminal.
16. Use an appropriate measuring device to ensure that no voltage is present at the AC terminal
block between L1 and PE, L2 and PE, and L3 and PE. Insert the test probe into each round
opening of the terminal.
17. Ensure that no voltage is present between any terminal of the multifunction relay and PE of the
AC terminal block.
18. Disconnect the communication assembly from the
inverter. To do so, release and remove the ribbon
cable from the communication assembly.
19.
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.
Replacement Manual
5 Disconnecting the Inverter from Voltage Sources
2
DANGER
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