SMA SB 1300TL - Manual (Page 37)

Self-test in accordance with CEI 0-21 during commissioning (applies to Italy only)
The Italian standard prescribes that an inverter can only operate on the utility grid after the
disconnection times for overvoltage, undervoltage, minimum frequency and maximum
frequency have been checked.
• If the country data set CEI 0-21 Int / CEI 0-21 internal is set, start the self-test as soon
as the display shows the country data set (see Section 7.4.1, page 37).
☑ The green LED is glowing and the display alternates automatically between the device type or
designation of the inverter, the firmware version and the configured country data set.
✖ The green LED is flashing?
The DC input voltage is still too low or the inverter is checking the utility grid.
• Once the DC input voltage is sufficiently high and the grid connection conditions are met,
the inverter will start operation.
✖ The red LED is glowing?
The inverter has detected a ground fault or one of the varistors is defective.
• Rectify the error (see the service manual at www.SMA-Solar.com).
✖ The yellow LED is glowing or flashing?
An error or disturbance has occurred.
• Rectify the error or disturbance (see service manual at www.SMA-Solar.com).
✖ All LEDs are flashing?
The DC voltage is still too low and the start-up phase begins again. No error has occurred.
• Waiting for sufficient irradiation
✖ All LEDs have gone out?
The inverter is switched off because the ESS is not plugged in, the external DC load-break
switch is not switched on or irradiation is not sufficient.
• Ensure that the ESS is plugged in correctly or that the external DC load-break switch is
switched on.
7.4 Self-Test in Accordance with CEI 0-21 for PV Systems
≤6 kW
7.4.1 Starting the Self-Test
The self-test only applies to inverters that are configured with the country data set
CEI 0-21 Int or CEI 0-21 internal.
The self-test is only valid for inverters licensed for Italy and configured with the country data set
CEI0-21 Int or CEI 0-21 internal.
The self-test is only required for inverters to be commissioned in Italy. The Italian standard requires
that all inverters feeding into the utility 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.
7 Commissioning SMA Solar Technology AG
Operating Manual 37 SB13-21TL-BE-en-11