Rockwell Automation 22C PowerFlex 400 AC Drive FRN 1.xx - 7.xx - Manual (Page 100)

3-42 Programming and Parameters
PowerFlex 400 Adjustable Frequency AC Drive FRN 1.xx - 7.xx User Manual
Publication 22C-UM001I-EN-P
Advanced Program Group (continued)
A168 [PWM Frequency] Related Parameter(s): A169
Sets the carrier frequency for the PWM output waveform. The chart below provides derating
guidelines based on the PWM frequency setting.
Important: Ignoring derating guidelines can cause reduced drive performance.
Values Default: 4.0 kHz
Min/Max: 2.0/10.0 kHz (Frame C and D drives)
2.0/8.0 kHz (Frame E, F, G and H drives)
Display: 0.1 kHz
% Output Curent (A)
68
84
88
80
76
96
100
92
72
64
60
56
52
50
48
Carrier Frequency (kHz)
8 7 6 5 4 3 2 1 10 9
A169 [PWM Mode] Related Parameter(s): A168
Selects the PWM algorithm used.
Options 0 “Space Vector” 3-Phase Modulation: Provides quiet operation and produces
less motor losses.
1 “2-Phase” (Default) 2-Phase Modulation: Provides less drive losses and best
performance with long motor cable runs.