ABB ACH580-31 - Switching Frequency Derating

1500 m
1000 m
+25 °C +30 °C
+77 °F +86 °F
+40 °C
+104 °F
+35 °C
+95 °F
+20 °C
+68 °F
3300 ft
4921 ft
2000 m
6562 ft
2500 m
8202 ft
3000 m
9842 ft
3500 m
114 29 ft
4000 m
13123 ft
1.00
0.95
0.85
0.90
0.80
Derating factor 1.00
Derating factor 0.95
Derating factor 0.90
Derating factor 0.85
Derating factor 0.80
For a more accurate derating, use the DriveSize PC tool.
To calculate the output current, multiply the current given in the rating table by
derating factor k which for x meters (1000 m ≤ x ≤ 4000 m) is:
Switching frequency derating
To calculate the output current, multiplying the current given in the rating table
by the derating factor given in the table below.
Note: If you change the minimum switching frequency with parameter 97.02
Minimum switching frequency, derate according to the table below. Changing
parameter 97.01 Switching frequency reference does not require derating.
Technical data 175