3 preparation for commissioning, Preparation for commissioning – SMA SC 200 Installation User Manual
Page 78

Commissioning
SMA Solar Technology AG
78
SC20_25_35-IEN094521
Installation Guide
7.3 Preparation for Commissioning
Preparatory Work
1. Disconnect all voltages.
2. Ensure that no voltage is present in the system.
3. Set the device to "Stop".
4. Insert the fuses.
5. Fit the covers.
6. Activate the internal main switch.
7. Close the circuit breakers.
8. Activate the automatic fuses.
9. Close the doors.
10. Leave the service room before switching on the voltage.
Switch on the voltages.
1. Activate the internal AC power supply externally.
☑ The Sunny Central boots and displays "Grid fault".
2. Activate the AC grid voltage externally.
☑ "Grid fault" is acknowledged automatically after a short period.
– Check the current values of the grid voltage on the display.
Fault display on the Sunny Central Control
See the Sunny Central user manual for details on troubleshooting.
If you cannot rectify the fault, contact the SMA Serviceline.