● The SUN2000 with a user interface board supports MBUS and RS485
communication modes, but only one communication mode can be selected at
the time of setup.
Figure 5-21 User interface board
(1) User interface board
● If the MBUS communication mode is selected, do not connect the RS485
communications cable. In addition, you need to set MBUS Communication to
Enable on the SUN2000 app. The MBUS communication mode is only
applicable to medium-voltage grid connection scenarios and non-low-voltage
public grid connection scenarios (industrial environment).
● If the RS485 communication mode is selected, you are advised to set MBUS
Communication to Disable on the SUN2000 app.
5.6.2 Installing the RS485 Communications Cable
Selecting an Installation Mode
An RS485 communications cable can be connected in two ways:
● Terminal block connection
Recommended: DJYP2VP2-22 2x2x1 PC cable or communications cable with a
conductor cross-sectional area of 1 mm
2
and a cable outer diameter of 14–18
mm.
● RJ45 network port connection
SUN2000-(70KTL, 75KTL)-C1
User Manual 5 Electrical Connections
Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd. 53
To Next Page
Loading...
Need help?
General