SMA NR-STP-DC-CON-1012, Replacement Manual

Page: 13 / 270

5 Disconnecting the Inverter from Voltage Sources SMA Solar Technology AG
Replacement Manual DCCON-STPTL10-RM-xx-10 13
7. Flip the lower enclosure lid up and remove it.
8.
CAUTION
Risk of burns when touching the DC protective cover
The DC protective cover can get hot during operation.
• Do not touch the DC protective cover.
9. 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 into each round opening of the
terminal.
10. 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.
11. 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 terminal block.
12. Use a current clamp to ensure that no current is present in the DC cables.
13. Note the position of the DC connector in order to be able to connect it again later in the same
position.
ENGLISH