SUN2000-(12KTL, 15KTL, 17KTL, 20KTL)-M0 
User Manual 
 
Copyright © Huawei Technologies Co., Ltd. 
 
 
The WPA, WPA2, or WPA/WPA2 encryption mode is recommended for routers. Enterprise-level 
encryption is not supported (for example, public hotspots requiring authentication such as airport 
WiFi). WEP and WPA TKIP are not recommended because these two encryption modes have serious 
security defects. If the inverter cannot be connected using WEP, log in to the router and change the 
encryption mode to WPA2 or WPA/WPA2. 
Figure 6-8 Quick settings 
 
 
 
The initial password for connecting the inverter WiFi is Changeme 
 
The initial password of the installer is 00000a 
 
Use the initial password upon first power-on and change it immediately after login. To ensure 
account security, change the password periodically and keep the new password in mind. Not 
changing the initial password may cause password disclosure. A password left unchanged for a long 
period of time may be stolen or cracked. If a password is lost, devices cannot be accessed. In these 
cases, the user is liable for any loss caused to the PV plant. 
 
To set more parameters, tap Parameter configuration. 
 
3.  (Optional) When multiple inverters are connected to a third-party data collector, set 
RS485 parameters.