opti-solar SP3000 Vigor, User Manual, Page: 17 / 26

15
8. Commissioning
Step 1: Check the following requirements before commissioning:

Ensure the inverter is firmed secured

Check if the open circuit DC voltage of PV module meets requirement (Refer to Section
6)

Check if the open circuit utility voltage of the utility is at approximately same to the
nominal expected value from local utility company.

Correct connection to grid

Full connection to PV modules

Unused DC input connectors are sealed with supplied sealing plugs.

AC circuit breaker and DC circuit breaker are installed correctly.
Step 2: After switching on the DC circuit breakers, it will display “No Utility” in the LCD screen.
Then, switch on the AC circuit breakers. After 60 seconds, the system will automatically
connect to the grid. Then:

If inverter icon is in the LCD display like below, commissioning has been successfully.

Or, if icon flashes, there is insufficient radiation and the inverter is in standby
mode. Wait for sufficient radiation.

Or, if icon flashes, the grid voltage or frequency is beyond acceptable range
and the inverter is in standby mode. Wait for grid voltage or frequency to return to
acceptable range.

Or if icon flashes, there has been an error. Please check chapter 11 for trouble
shooting. If the problem still resists, please inform your installer.
Step 3: After the inverter is successfully on, please calibrate the time and date of the inverter
via monitoring software. Please check software manual for the details.