SMA SC 400HE Installation - Manual (Page 47)

SMA Solar Technology AG Internal Electrical Connections
Installation Guide SCxxxHE-IEN104432 47
5.5 Connecting the Internal Control Cables of the Power Unit
The control cable coming from the AC cabinet is already plugged in upon delivery. Plug in the
X31/32 control cable via the terminal strip.
Connection (A) of the internal control cable for the Sunny Central
Connecting the control cable
Adhere to the circuit diagram included in the delivery when connecting the internal control
cable.
L-
L+
L-
L+
L-
L+
A