3 closing the inverter, Closing the inverter – SMA WB 5000A-11 Installation User Manual
Page 59

SMA Solar Technology AG
Opening and Closing
Installation Manual
WB5A_6A-IA-IEN114540
59
7.3 Closing the Inverter
1. Secure the enclosure lid with the 6 screws and the
corresponding conical spring washers. To do this,
use a hexagon socket wrench (6 mm).
Tighten the screws with 6 Nm torque in the order
shown in the figure on the right. The toothing of the
conical spring washers must point toward the
enclosure lid.
The scope of delivery of the inverter includes a
spare screw and a spare conical spring washer.
2. Check the DC connectors for correct polarity and connect them to the inverter. To release the
DC connectors, see Section 7.2 "Opening the Inverter" (page 57).
☑ The DC connectors click audibly into position.
To release the DC connectors, see Section 7.2 "Opening the Inverter" (page 57).
3. Close all unused DC inputs as described in Section 5.4.4 "Connecting the Small Wind Turbine
System (DC)" (page 34) to seal the inverter.
4. Ensure that all DC connectors are securely in place.
5. Switch on the miniature circuit-breaker.
6. Commission the small wind turbine system in accordance with the instructions of the
manufacturer.
DANGER!
Danger to life due to live enclosure lid
The grounding of the enclosure lid is ensured by the conical spring washers.
• Attach the conical spring washers for all 6 screws with the toothing facing toward the
enclosure lid.