AX5125 - Switching frequency of the IGBT module

In case of a higher PWM frequency, the power of the servo drive may be derated. Due to the higher switching losses, the derating is changed. In result of this, the current rating and the peak current of the servo drives is reduced.

servo drive

PWM frequency (kHz)

current rating Irated(A)

peak current Ipeak(A)

tmax (s)Ipeak

tmax (s)Ipeak

tmax (s)Ipeak

400 V AC

480 V AC

400 V AC

480 V AC

0 Hz – 1,5 Hz

1,5 Hz – 3 Hz

> 3 Hz



AX5125

4

--

--

--

--

--

8

25

50

7

7

7

16

13

12

23.5

18.6

7

7

7

The settings are made in the parameters P-0-0090 (channel peak current) and P-0-0091 (Channel rated current)