Switching Frequency Derating; Altitude Derating - ABB ACS580-01 Hardware Manual

140 Technical data


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 97.02
Minimum switching frequency, derate according to the table below. Changing
parameter 97.01 Switching frequency reference does not require derating.
Frame Type
size ACS580
-01
R0 02A6-4...05A6-4
R1 07A2-4...12A6-4
R2 017A-4...025A-4
R3 032A-4...045A-4
R4 062A-4
R4 073A-4
R5 061A-4...087A-4
R6 105A-4...145A-4
R7 169A-4...206A-4
R8 246A-4...293A-4
R9 363A-4...430A-4


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:
1
k = 1 -
10 000 m
Check the network compatibility restrictions above 2000 m (6562 ft), see
site altitude on page 159. Check also PELV limitation on relay output terminals above
2000 m (6562 ft), see sections
Isolation areas, R5...R9 (CCU-12):
Derating factor (k) for the minimum switching frequencies
1 kHz 2 kHz
1
1
1
1
1
1
1
1 0.97
1 0.98
1 0.96
1 0.95
. (x - 1000) m
Isolation areas, R0...R4 (CCU-11):
on page 156.
4kHz
1 1
1 1
1 1
1 1
1 1
1 1
1 0.92
0.83
0.88
0.81
0.78
8 kHz 12 kHz
0.67 0.5
0.67 0.5
0.65 0.48
0.65 0.48
0.82 0.64
0.73 0.55
0.7 0.57
0.66 0.5
0.7 0.5
0.6 N/A
0.56 N/A
Installation
on page 155 and