SUN2000-(50KTL-JPM0, 50KTL-JPM1, 63KTL-JPM0)
User Manual
5 Electrical Connections
Issue 01 (2018-09-30)
Copyright © Huawei Technologies Co., Ltd.
46
Figure 5-17
Connecting DC input power cables
If polarity of the DC input power cable is reversed and the DC switch is ON, do not turn off
the DC switch immediately or unplug positive and negative connectors. The device may be
damaged if you do not follow the instruction. The caused equipment damage is beyond the
warranty scope. Wait until the solar irradiance declines and the PV string current reduces to
below 0.5 A, and then turn off the two DC switches and remove the positive and negative
connectors. Correct the string polarity before reconnecting the string to the SUN2000.
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5.6 Installing the Communications Cable
5.6.1 Communication Mode Description
The SUN2000 can connect to the SmartLogger over RS485 or to a PC through the
SmartLogger to implement communication. You can use the SUN2000 app, SmartLogger,
embedded WebUI, or the network management software (such as the NetEco) on the PC to
query information about the SUN2000, such as energy yield, alarms, and running status.