Huawei SUN2000-M3 User Manual page 63

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual
MBUS Communication
The MBUS is a communication mode in which communication signals are loaded
to power cables through the communications board for transmission.
Figure 5-22 MBUS communication (utility-scale scenarios)
Issue 11 (2023-01-10)
Figure 5-21 SmartLogger networking
NO TE
● If a SUN2000 is networked using the SmartLogger, it cannot be connected to a
Smart Dongle.
● It is recommended that the number of SUN2000s connected to each RS485 route
be less than 30.
NO TE
● Inverters manufactured after July 20, 2022 do not support the AC MBUS.
● The built-in MBUS module in the SUN2000 does not need to be connected with cables.
● In utility-scale scenarios, an isolation transformer must be connected between inverters
and loads.
● Commercial and industrial scenarios are supported only in China.
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
54