NO TE
ɲ /©ì¯Wväìà²Êª²äÊÑìÑÊĒªñà with an optimizer, use a multimeter to measure the
voltage at the DC position. The multimeter must have a DC voltage range of at least
600 V. If the voltage is a negative value, the DC input polarity is incorrect and needs
correction. If the voltage is greater than 600 V, too many PV modules are ÑÊĒªñà to
the same string. Remove some PV modules.
ɲ /©ì¯Wväìà²Êª²äÑÊĒªñà with an optimizer, check the cable polarity by referring to
the Smart PV optimizer quick guide.
Before performing Step 2, ensure that the DC switch is set to OFF.
Step 2 Insert the positive and negative connectors into corresponding DC input terminals
on the SUN2000.
After the positive and negative connectors snap into place, pull the DC input
power cables back to ensure that they are connected securely.
Figure 5-15 Connecting DC input power cables
SUN2000-(2KTL-6KTL)-L1
User Manual 5 Electrical Connection
Issue 03 (2020-09-15) Copyright © Huawei Technologies Co., Ltd. 45
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