SMA SMC 7000HV Installation - Manual (Page 52)

Commissioning SMA Solar Technology AG
52 SMC70HV11-IA-IEN112970 Installation Manual
6.3.2 Completion of the Self-Test
Note the values which are displayed during the self-test. These values must be entered into a test
report. The test results of the individual tests are displayed 3 times, one after the other. The respective
display message is displayed for 10 seconds.
The self-test changes the upper and lower disconnection thresholds for each protective function on a
linear basis with a modification of 0.05 Hz/s and 0.05 Vn/s for the frequency and voltage
monitoring. As soon as the actual measured value is outside the permitted range (altered
disconnection threshold), the inverter disconnects itself from the power distribution grid. In this way,
the inverter determines the reaction time and checks itself.
Overvoltage test
The inverter begins with the overvoltage test. 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
the following values one after the other:
• Disconnection value,
• Calibration value,
• Reaction time,
• Current grid voltage.