SMA SC 400HE Installation - Manual (Page 46)

Internal Electrical Connections SMA Solar Technology AG
46 SCxxxHE-IEN104432 Installation Guide
5.4 Connecting the Sunny Central Control to the Power Unit
Connect the data line of the Sunny Central Control to the controller board at the power unit. The cable
possesses a 4-pole white plug that is to be plugged into the controller board. The ADAPBFS
(control board) and controller board are located in the inverter cabinet on the topmost power unit.
The controller board communicates with the ADAPBFS board via a ribbon cable. The slot for the plug
of the data line is located on the right side of the board directly at the communication interface
(Piggy‑Back).
Connection terminal (A) for the data cable in the Sunny Central
Notice!
Faulty installation could damage the cabling
• Do not lay the cables in the cable channel or parallel to the power cables (EMC).
• Place the cables freely in the switch cabinet.
• Connect the plug-in contact carefully to the board.
L-
L+
L-
L+
L-
L+
A