SMA WB 3000-21 Installation - Manual (Page 47)

SMA Solar Technology AG 7 Initial Start-Up
Installation Manual WB3-5TL-21-IA-en-10 47
1. Switch on the miniature circuit-breaker.
2. If the multi-function relay is used, switch on the load supply voltage.
3. Start the small wind turbine system.
☑ The start phase begins.
☑ The green LED is lit and the display shows, in succession, the device type, the firmware
version, the serial number or designation of the inverter, the NetID, and the specified country
data set and display language.
✖ Green LED flashing?
Possible cause of error: The DC input voltage is still too low, or the inverter is monitoring the
power distribution grid.
• If the DC input voltage is sufficiently high and the grid start-up conditions are met, the
inverter starts to operate.
✖ The red LED is lit and an error message and event number appear in the display?
• Eliminate the fault (see Section 11 "Troubleshooting", page 59).
4. Configure the inverter (see Section 8).
7.5 For Italy Only: Starting the Self-Test
The self-test is only valid for inverters that are configured with the country data set
CEI0-21 Int/CEI 0-21 Intern and were commissioned in Italy.
The Italian standard requires that all inverters feeding into the power distribution grid are equipped
with a self-test function in accordance with CEI 0-21. During the self-test, the inverter will consecutively
check the reaction times for overvoltage, undervoltage, maximum frequency and minimum frequency.
The self-test changes the upper and lower trip-limit values for each protective function on a linear basis
for frequency monitoring and voltage monitoring. As soon as the measured value exceeds the
permitted trip-limit value, the inverter disconnects from the power distribution grid. In this way, the
inverter determines the reaction time up to disconnection and checks itself.
After the self-test has been completed, the inverter automatically switches back to the feed-in
operation, resets the original calibration values and connects to the power distribution grid.
Requirements:
☐ Configured country data set: CEI0-21Int/CEI 0-21 Intern or amended country data set
trimmed/Special setting based on one of the country data sets mentioned above.
☐ A report for entering the test results must be available.
☐ The inverter must be in operation and in the start phase.