Waiting

1. Discharge inverter after disconnect AC and DC for 30min.

2. Disconnect  the  earthing  and  check  inverter  is working or not.

3. Disconnect the Neutral and check inverter is working or not.

4. Change the Grid standard from advance setting and check.

5. Please check the VOC of all of the PV strings (Voltage should check from connector end after disconnect string from inverter).

6. Use a multi-meter to check the voltages between PV+ and earth, PV- and earth of all the PV strings. It should be decreasing from values between 5% and 95% of single PV module Voc. If voltage stuck on above single module VOC or in decreasing condition if voltage getting increase that means there is some fault with that strings.

7. If system is three phase (Check AC side voltage Phase to Phase, phase to neutral and neutral to earthing.) Always check reading from inverter AC gland end.

8. If system is single phase (Check AC side voltage Phase to neutral, phase to earthing and neutral to earthing.) Always check reading from inverter AC gland end.

9. Take complete reading of information menu like DC1, DC2, DC3, DC4  then VA, VB, VC  or VGrid  then Status (Error) and Total energy.

10. Take reading from advance info Alarm messages, version, running messages, warning messages.

11. Take ACDB, DCDB close and clear photo, inverter serial no. which is stick on inverter body and inverter complete installation photo.