ABB ACS580-01 - Switching Frequency Derating

Technical data 167
The altitude derating can be reduced if the temperature is below +40 °C, for example,
if the temperature is 30 °C, the derating factor is 1 - 1.5%
· 10 = 0.85. You can reduce
the output current by 35% instead of 40% at 4000 meter above the see level.
Note: Check the supply network compatibility restrictions above 2000 m (6562 ft),
see Installation site altitude on page 192. Check also PELV limitation on relay output
terminals above 2000 m (6562 ft), see sections Isolation areas, R1…R5 on page 188
and Isolation areas, R6…R9 on page 189.
 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
size
Type
ACS580
-01-
Derating factor (k) for the minimum switching frequencies
1kHz 2kHz 4kHz 8kHz 12 kHz
R1 02A1-4…12A7-4 1 1 1 0.67 0.5
R2 014A-4…026A-4 1 1 1 0.65 0.48
R3 027A-4…046A-4 1 1 1 0.65 0.48
R4 052A-4…062A-4 1 1 1 0.82 0.64
R4 065A-4…073A-4 1 1 1 0.73 0.55
R5 078A-4…106A-4 1 1 1 0.71 0.57
R6 124A-4…145A-4 1 0.97 0.84 0.66 0.52
R7 156A-4…206A-4 1 0.98 0.89 0.71 0.53
R8 240A-4…293A-4 1 0.96 0.82 0.61 0.45
R9 361A-4…430A-4 1 0.95 0.79 0.58 0.43
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