SMA RS485-Quick Module - Manual (Page 19)

SMA America, LLC Assembly
Installation Guide RS485-QM-IA-eng-IUS111610 19
5 Assembly
5.1 Open SMA DC-Disconnect.
1. Disconnect the AC switch and make sure it cannot be switched on.
2. Turn the DC disconnector to the "Off" position and
wait 5 minutes until the capacitors of the inverter
are discharged.
☑ The inverter is disconnected on the AC and DC
sides.
3. Loosen the screws on the enclosure of the SMA DC-
Disconnect (turn the screws in a counterclockwise
direction). Leave the screws and tab washers on the
cover.
4. Remove the cover of the SMA DC-Disconnect
towards the front.
5. Place the cover to one side.
☑ The SMA DC-Disconnect is open.
WARNING
High voltages in the inverter. Death or serious injuries.
• Before working on the SMA DC-Disconnect, disconnect the AC switch and make sure
it cannot be switched on.
• Disconnect the multi-function relay power supply.
• Set the DC disconnector of the SMA DC-Disconnect to the "Off" position.
• Wait 5 minutes before opening the cover of the SMA DC-Disconnect, until the
capacitors of the inverter are discharged.