Switching Frequency Derating; Altitude Derating - ABB ACS560 Hardware Manual

110 Technical data
k
1.00
0.95
0.90
0.85
0.80
...
°C
5.00 +104.00 °C
-59 °F
￭

Switching frequency derating

The output current is calculated by 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 , derate according to the
table below. Changing parameter does not require derating.
Frame size
R0
R1
R2
R3
R4
R5
R6
R7
R8
￭

Altitude derating

In altitudes 1000...4000 m (3300...13120 ft) above sea level, the derating is 1% for every
100 m (330 ft).
The output current is calculated by multiplying the current given in the rating table by the
derating factor k, which for x meters (1000 m <= x <= 4000 m) is:
+122.00 °C
+104 °F +122 °F
Derating factor of the min. switch frequency
2kHz
1
1
1
1
1
1
0.97
0.98
0.96
R0...R8
T
4kHz 8kHz
1 0.65
1 0.67
1 0.67
1 0.65
1 0.73
1 0.71
0.83 0.66
0.88 0.7
0.81 0.6
12kHz
0.48
0.5
0.5
0.48
0.55
0.55
0.5
0.5
Not applicable
3AXD10000561047.xls