SMA SC 400HE Installation - Manual (Page 95)

SMA Solar Technology AG Commissioning
Installation Guide SCxxxHE-IEN104432 95
7.4 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 load disconnection unit.
8. Activate the circuit breakers fuses.
9. Close the doors.
10. Leave the operating room before switching on the voltage.
Switching 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.