SMA SUNNY CENTRAL 900CP XT - Visual Inspection and Mechanical Test

4 Disconnecting and Reconnecting
SMA Solar Technology AG
Maintenance Manual 29SCCPXT-E7-WA-en-37
5. If the supply voltage has been disconnected upstream from the
circuit breaker, switch the circuit breaker of the supply voltage on.
4.3.2 Reconnecting the AC Side
1. Reconnect the supply voltage and external voltages (see Section4.3.1, page28).
2. Reconnect the AC voltage of the MV transformer.
3. Switch on the AC disconnection unit in the inverter.
4.3.3 Reconnecting the DC Side
1. Insert all fuses and disconnection blades into all fuse holders of the inverter. Use an LV/HRC fuse extractor.
2. Screw on the protective covers over the fuses (torque: 5Nm).
3. Switch on the DC voltage in the DC main distribution or DC subdistribution (see documentation of the main or
subdistribution).
4.3.4 Restarting the Inverter
• Turn the key switch to Start.