Sma RS485-Quick Module User Manual download pdf (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.

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Sma RS485-Quick Module User Manual Page 19