ABB ACH480 Series - Page 129

the derated current. Multiply the drive output current with the applicable derating factor
from the table.
Derating is not necessary when changing parameter 97.01 Switching frequency
reference.
Frame R4: If the application is cyclic and the surrounding air temperature is constantly
over 40 °C (104 °F), keep parameter 97.02 Minimum switching frequency at its default
value (1.5 kHz). Higher switching frequencies decrease the product life time or the
performance in the temperature range 40 … 60°C (104 … 140 °F).
Derating factorIEC type
ACH480-
04-…
12 kHz8 kHz< 4 kHz
3-phase U
N
= 400 V
0.480.651.002A7-4
0.480.651.003A4-4
0.480.651.004A1-4
0.480.651.005A7-4
0.480.651.007A3-4
0.480.651.009A5-4
0.510.681.012A7-4
0.510.681.0018A-4
0.510.671.0026A-4
0.490.651.0033A-4
0.490.651.0039A-4
0.490.661.0046A-4
0.490.661.0050A-4
Derating factorUL (NEC)
type
ACH480-
04-…
12 kHz8 kHz< 4 kHz
3-phase U
N
= 480 V
0.480.651.002A1-4
0.480.651.003A0-4
0.480.651.003A5-4
0.480.651.004A8-4
0.480.651.006A0-4
0.480.651.007A6-4
0.510.681.0011A-4
0.510.681.0014A-4
0.510.671.0021A-4
0.490.651.0027A-4
Technical data 129