SMA Solar Technology AG
4. Discharge the DC EMV assembly at the contact
points using a voltage detector without intrinsic
voltage source. Ensure that the residual voltage is
below 5 V: connectors (red, light blue, white, green,
black and purple) to the protective conductor
(enclosure), the bolted connection (black, blue) to
the protective conductor (enclosure), connectors
(red, light blue, white ) to the black bolted
connection, connectors (green, black, purple) to the
blue bolted connection.
5. Ground yourself prior to replacing the assembly to prevent ESD damage.
6. Disconnect cables (red, light blue, white, green,
black and purple) from the top and bottom of the
assembly. Use a suitable screwdriver to remove the
cables from the terminals and ensure that the ferrites
are not damaged.
7. Unplug the ribbon cable connector. Unlock the plug
first.
Replacement Manual
6 Replacing the DC EMV Assembly
STP50-DC-EMV-DST-RM-xx-12
15