Huawei 01075345 User Manual page 61

SUN2000-(2KTL-6KTL)-L1
User Manual
● Keep the DC input PV+ cable and PV– cable close to each other.
● Cables with high rigidity, such as armored cables, are not recommended as DC
● Before assembling DC connectors, label the cable polarities correctly to ensure
● After crimping the positive and negative metal terminals, pull the DC input
● Insert the crimped metal terminals of the positive and negative power cables
Figure 5-14 Assembling a DC connector
Before performing
Issue 10 (2023-02-13)
NO TICE
input power cables, because poor contact may be caused by the bending of the
cables.
correct cable connections.
power cables back to ensure that they are connected securely.
into the appropriate positive and negative connectors. Then pull back the DC
input power cables to ensure that they are connected securely.
NO TE
● If the PV string is not configured 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 configured to
the same string. Remove some PV modules.
● If the PV string is configured with an optimizer, check the cable polarity by referring to
the Smart PV optimizer quick guide.
WARNING
Step
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2, ensure that the DC switch is set to OFF.
5 Electrical Connection
54