● Cables with high rigidity, such as armored cables, are not recommended as DC
input power cables, because poor contact may be caused by the bending of the
cables.
● Before assembling DC connectors, label the cable polarities correctly to ensure
correct cable connections.
● After crimping the positive and negative metal contacts, pull the DC input
power cables back to ensure that they are connected securely.
● Insert the crimped metal contacts of the positive and negative power cables
into the appropriate positive and negative connectors. Then pull back the DC
input power cables to ensure that they are connected securely.
● If the DC input power cable is reversely connected and the DC SWITCH is set to
the ON position, do not operate the DC SWITCH and positive and negative
connectors. Otherwise, the device may be damaged. The caused device damage
is not covered under any warranty. Wait until the solar irradiance declines and
the PV string current drops to below 0.5 A. Then set the two DC SWITCH to the
OFF position, remove the positive and negative connectors, and rectify the
connection of the DC input power cable.
● The DC voltage measurement range of the multimeter must be at least 1080 V. If the
voltage is a negative value, the DC input polarity is incorrect and needs correction. If the
voltage is greater than 1080 V, too many PV modules
congured in the same string.
Remove some PV modules.
● If the PV string is congured with an optimizer, check the cable polarity by referring to
the Smart PV optimizer quick guide.
Step 1 Connect the DC input power cable.
Use the Staubli MC4 positive and negative metal terminals and DC connectors
delivered with the SUN2000. Using incompatible positive and negative metal
terminals and DC connectors may result in serious consequences. The caused
device damage is not covered under any warranty or service agreement.
SUN2000-(8KTL-20KTL)-M2
User Manual 5 Electrical Connections
Issue 11 (2023-02-07) Copyright © Huawei Technologies Co., Ltd. 50
To Next Page
Loading...
Need help?
General