SMA NR-PL-DCEMV5-01 Manual page 19

SMA Solar Technology AG
3. Disconnect cables (1 red, 2 light blue, 1 white, 1
green, 1 black and 1 purple) from the assembly.
Use a suitable screwdriver to remove the cables
from the terminals.
4. Unplug the connections. When doing so, unlock the
ribbon cable plug first.
5. Remove the screws on the power connections from
the DST assembly (TX20 or TX30). If the bolting
block and the terminal lug stick together, the contact
surfaces must be ground prior to the next connection
being made. Ensure that no grinding filings remain
in the device.
6. Clean the contact surfaces on the bolting block and terminal lugs with a suitable cleaning
agent to remove bolt coating deposits.
Replacement Manual
7 Replacing the DST Assembly
STP50-DC-EMV-DST-RM-xx-10 19