SMA SC 100 Indoor Installation - Manual (Page 39)

SMA Solar Technology AG Commissioning
Installation Guide SC-100-IEN093231 39
Serial Interfaces
For external communication and string current monitoring, the data cables must be connected.
Settings for the Hygrostat
The device contains an adjustable hygrostat for controlling the cabinet ventilators and the overheating
shut-off system. The hygrostat is pre-adjusted before delivery.
8.3 Switch On
If all tests and measurements have been performed, and all measured values lie within the acceptable
range, then the device can be switched on for the first time.
All circuit breakers and motor overload switches in the Sunny Central are to be switched on.
Now the inverter is completely connected on the AC and DC sides and can be switched on using the
key switch. Close the cabinet doors and turn the key switch to the right to the “Start” position.
The Sunny Central will now start automatically. First, the grid voltage and frequency parameters are
checked. After approx. 20 seconds, the motorized DC breaker is activated automatically and
connects the PV generator.
Prior to commissioning, please check whether the settings agree with the information in the
wiring diagram. If deviations are found, please set the values specified in the wiring
diagram.
Please follow the Sunny Central user manual for the continued operation of the inverter.