SUN2000 (8KTL-28KTL) 
User Manual 
 
Copyright © Huawei Technologies Co., Ltd. 
 
 
After the positive and negative metal contacts snap into place, pull the DC input power cables 
back to check that they are connected securely. 
Step 2  Pull out the blue dustproof plugs from the ends of the DC input connectors. 
Step 3  Ensure that the DC input voltage of each PV string does not exceed 1000 V DC using a 
multimeter and check that the polarities of the DC input power cables are correct. 
Figure 5-22 Measuring the DC input voltage 
 
 
 
Before performing Step 4, ensure that theDC SWITCH is OFF. 
Step 4  Insert the positive and negative connectors into the corresponding DC input terminals of the 
SUN2000 until a "click" sound is heard, as shown in Figure 5-23.