Installing The Communications Cable - Huawei SUN2000-175KTL-H0 User Manual

SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1)
User Manual
Procedure
Use the MC4 EVO2 PV connectors delivered with the inverter. If the PV connectors are lost
or damaged, purchase the connectors of the same model. The device damage caused by
incompatible PV connectors is beyond the warranty scope.
Step 1 Install the DC input power cable.
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Figure 5-12 Cable connection
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5.9 Installing the Communications Cable

Precautions
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2.
Issue 02 (2019-06-05)
The DC voltage measurement range of the multimeter must be at least 1500 V.
If the voltage is a negative value, the DC input polarity is incorrect and needs correction.
If the voltage is greater than 1500 V, too many PV modules configured to the same string.
Remove some PV modules.
The RS485 and MBUS communication modes are mutually exclusive.
When routing communications cables, separate communications cables from power
cables to prevent communication from being affected.
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
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