Resetting SUN2000-(12KTL-25KTL)-M5 and SUN2000-50KTL-M3 Solar Inverter Password

NOTE:

You are advised to reset the password in the morning or at night when the solar irradiance is low

Step 1

Check that the AC and DC sides of the inverter are both powered on, and indicators and are steady green or blinking slowly for more than 3 minutes.

Step 2

Turn off the AC switch, set the DC SWITCH at the bottom of the inverter to OFF, and wait until all indicators on the inverter panel turn off.

Step 3

Complete the following operations within 4 minutes:

1. Turn on the AC switch and wait for about 90 s or until the inverter indicator blinks.
2. Turn off the AC switch and wait about 30 s or until all LED indicators on the inverter panel turn off.
3. Turn on the AC switch and wait for about 30 s or until all LED indicators on the inverter panel blink and then turn off after about 30s.

Step 4

Wait until the three green LEDs on the inverter panel blink fast and then the three red LEDs blink fast, which indicates that the password is restored.

Step 5

Reset the password within 10 minutes. (If no operation is performed within 10 minutes, all parameters of the inverter remain unchanged.)

1. Wait until the indicator blinks.
2. Connect to the app using the initial WLAN hotspot name (SSID) and initial password (PSW), which can be obtained from the label on the side of the inverter.
3. On the login page, set a new password and log in to the app.

Step 6

Set router and management system parameters to implement remote management.