● 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 congured to the
same string. Remove some PV modules.
● Connect the PV string connector to the inverter connector, and then pull back
the PV string connector along the axial direction to check whether the
connectors are securely connected.
● The connector must be securely connected. Damages caused by improper
connection are not covered under the warranty.
Figure 5-17 Cable connection
Figure 5-18 Connector connection
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1)
User Manual 5 Electrical Connections
Issue 19 (2023-12-20) Copyright © Huawei Technologies Co., Ltd. 58
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