Chapter 12 Description of Parameter SettingsC2000-HS
12.1-00-11
TQC Sensorless (Pr. 00-13=2) control diagram is shown in the following:
Load Selection
Default: Read only
Settings 0: Normal load
Normal duty: over-load rated output current 160% in 3 seconds (120%, 1 minute). Refer to Pr.
00-17 for the setting for the carrier wave. Refer to Pr. 00-01 or the specification table in Chapter
09 for the rated current.
In Normal Duty, the default setting of Pr. 06-03 and Pr. 06-04 is 120%, and the maximum setting
range is 160%. However, if DC voltage is higher than 700V
DC
, then the maximum setting range is
145%.
Carrier Frequency
Default: Table below
Settings 2–15 kHz
This parameter determinates the PWM carrier frequency for the AC motor drive.
Model Settings Default
VFD300–750C43A-HS 2–15kHz 10kHz
VFD1100C43A-HS 2–15kHz 8kHz
VFD1600C43A-HS 2–12kHz 8kHz
VFD2200C43A-HS 2–10kHz 6kHz
VFD3550C43A-HS 2–9kHz 6kHz
From the table, you see that the PWM carrier frequency has significant influences on the
electromagnetic noise, the AC motor drive heat dissipation, and the motor acoustic noise.
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