Figure 5-17 Measuring voltage
● If the voltage is a negative value, the PV string is of reversed polarity. Correct
before connecting this string to the SUN2000.
● If the voltage is greater than 1100 V, too many PV modules are congured to
the same string. Remove some PV modules.
Step 3 Pull out the blue dustproof plugs from the ends of the DC input connectors.
Before performing Step 4, ensure that the two DC switches are OFF.
Step 4 Insert the positive and negative connectors into the corresponding positive and
negative DC input terminals of the SUN2000 until they snap into place.
After the positive and negative connectors snap into place, pull test to the DC
input power cable is recommended.
SUN2000-(70KTL, 75KTL)-C1
User Manual 5 Electrical Connections
Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd. 50
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