Chapter 4 Parameters
4-74
40%
50%
60%
For 115V/230V Series
80%
90%
100%
2kHz
4kHz
8kHz
10kHz
12kHz
14kHz 15kHz
6kHz
70%
Ra
te
d C
u
rr
e
n
t
(%
)
Carrier
Frequency
50 with mounting method A
℃
40 with mounting method B
℃
35 with mounting method A
℃
25 with mounting method B
℃
25 with mounting method A
℃
15 with mounting method B
℃
40%
50%
60%
For 460V Series
80%
90%
100%
70%
Carrier
Frequency
R
a
te
d Curr
e
n
t (%)
2kHz
4kHz
8kHz
10kHz
12kHz
14kHz15kHz
6kHz
50 with mounting method A
℃
40 with mounting method B
℃
25 with mounting method B
℃
25 with mounting method A
℃
15 with mounting method B
℃
Setting 1: to prevent the AC motor drive from overheating and thus extends IGBT’s life and
also prevent carrier change and motor noise due to surrounding temperature and frequently
load change, it needs to use this setting. Please refer to the following figure for the selection of
carrier frequency and rated current. For example, when carrier frequency should be kept in
15Hz, the rated current of the AC motor drive must be 65%. That means the rated current for
over load is 150% * 65% =97.5%. Thus, the rated current should be within the range of the
following figure to keep the carrier frequency at a fix frequency.
Related parameter: Pr.02.03 (PWM Carrier Frequency Selections)
