SMA Solar Technology AG Commissioning
Installation Manual SB20HF-30HF-IA-IEN120431 53
7.3.2 Test Sequence
Note the values which are displayed during the test sequence. These values must be entered into a
test report. The test results of the individual tests are displayed three times one after the other. When
the inverter has carried out the 4 tests, it switches to normal operation. The original calibration values
are reset.
Overvoltage test
The inverter starts the overvoltage test and shows the
adjacent display message for 5 seconds.
During the test sequence, the voltage limit applied is
shown in the display of the inverter. The voltage limit is
reduced successively until the shut‑down threshold is
reached and the inverter disconnects from the power
distribution grid.
Once the inverter has disconnected from the power distribution grid, the display successively shows
each of the following values one after the other for 10 seconds:
•Disconnection value,
•Calibration value,
•Reaction time.
The change between the first and second display takes places every 2.5 seconds.
Current values in the display
During the self‑test the current voltage, the feed‑in current and the frequency are displayed
above the text rows, independently of the test values.
To Next Page
Loading...
