SMA SB 2500 Installation - Manual (Page 35)

SMA Solar Technology AG Electrical Connection
Installation Manual SB25-30-IA-en-51 35
9. If an Electronic Solar Switch is installed, check the
Electronic Solar Switch for wear, as described in
Section 8.2 "Checking the Electronic Solar Switch
for Wear" (page 49), and reattach it firmly.
☑ The PV array is connected.
5.5 Communication
The inverter is equipped with a slot for communication interfaces in order to communicate with special
data capture devices (e.g., Sunny WebBox) or a PC with corresponding software
(e.g. Sunny Data Control or Sunny Explorer).
Refer to the communication interface manual for a detailed wiring diagram and a mounting
description.
The inverter's active power can be limited externally using the Power Reducer Box from
SMA Solar Technology AG. You will find detailed information on active power limitation in the
Technical Description "Operating Parameters" at www.SMA.de/en.
NOTICE!
Damage to the inverter due to moisture and dust intrusion
If the Electronic Solar Switch is not plugged in or incorrectly plugged in during operation,
moisture and dust can penetrate the inverter.
If the Electronic Solar Switch is not correctly plugged in, this can cause contacts to wear in
the Electronic Solar Switch or the Electronic Solar Switch might fall down. This can result in
yield loss and damage to the Electronic Solar Switch.
Always plug in the Electronic Solar Switch as described in the following:
• Do not tighten the screw in the Electronic Solar Switch.
• Firmly plug in the Electronic Solar Switch until it is flush with the enclosure.
• Ensure that the maximum distance between the Electronic Solar Switch and the
enclosure is 1 mm.