Sungrow SG2K5-S - Page 74

7 LCD Operation User Manual
66
(1) 81>.S1: over-frequency test
(stage I)
(2) 81<.S1: under-frequency test
(stage I)
(3) 59.S1: over-voltage test
(stage I)
(4) 27.S1: under-voltage test
(stage I)
(5) 81>.S2: over-frequency test
(stage II)
(6) 81<.S2: under-frequency test
(stage II)
(7) 59.S2: over-voltage test
(stage II)
(8) 27.S2: under-voltage test
(stage II)
81>.S1
Imp. / Ril.
Valo. (Hz)
Tempo (s)
Risult.
50.50 / 49.99
0.10 / 0.00
Test...
81<.S1
Imp. / Ril.
Valo. (Hz)
Tempo (s)
Risult.
49.50 / 49.99
0.10 / 0.00
Test...
59.S1
Imp. / Ril.
Valo. (Hz)
Tempo (s)
Risult.
253.0 / 230.0
0.10 / 0.00
Test...
27.S1
Imp. / Ril.
Valo. (Hz)
Tempo (s)
Risult.
195.5 / 230.0
0.10 / 0.00
Test...
81>.S2
Imp. / Ril.
Valo. (Hz)
Tempo (s)
Risult.
51.50 / 49.99
0.10 / 0.00
Test...
81<.S2
Imp. / Ril.
Valo. (Hz)
Tempo (s)
Risult.
47.50 / 49.99
0.10 / 0.00
Test...
59.S2
Imp. / Ril.
Valo. (Hz)
Tempo (s)
Risult.
264.5 / 230.0
0.10 / 0.00
Test...
27.S2
Imp. / Ril.
Valo. (Hz)
Tempo (s)
Risult.
92.0 / 230.0
0.10 / 0.00
Test...
Imp.: the default protection threshold
Ril.: the actual sample value

For over- frequency / voltage protection testing, the default protection
threshold (Imp.) is linearly decreased with a ramp <= 0.05 Hz/s or <= 0.05
Vn/s. The protection function will be triggered if the threshold is lower than
the actual sample value (Ril.).

For under- frequency / voltage protection testing, the default protection
threshold (Imp.) is linearly increased with a ramp <= 0.05 Hz/s or <= 0.05
Vn/s. The protection function will be triggered if the threshold is higher
than the actual sample value (Ril.).
If the protection function is triggered, the LCD will automatically return to the
main screen with the corresponding error code displayed and the LED
indicator will be lit red.
If the test is successfully completed, for each test, the values of frequency /
voltage and the trip times will be visualized as well as the current values of
the frequency and voltage measured by the inverter.
Touch to scroll pages and touch ENT to exit.