Delta Electronics VFD037CH23A-21 — настройки параметров для выбора нагрузки в приводах переменного тока [228/638]

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Delta Electronics VFD007CH23A-21 [228/638] Minimal
Chapter 12 Description of Parameter SettingsCH2000 Series
12-12
Load Selection
Factory Setting: 3
Settings
3: Super Heavy Duty
Super Heavy Duty: over load, rated output current 200% in 3 second (150%, 1 minute). Refer to
Pr.00-17 for the setting of carrier wave. Refer to chapter specifications or Pr.00-01 for the rated
current.
Carrier Frequency
Factory setting: Table below
Settings
215kHz
This parameter determinates the PWM carrier frequency of the AC motor drive.
230V Series
Models 1-15HP [0.75-11kW] 20-100HP [15-75kW]
Setting Range 05~15kHz 05~15kHz
Super Heavy Duty
Factory Setting
8kHz 6kHz
460V Series
Models 1-20HP [0.75-15kW] 25-100HP [18.5-75kW] 125-375HP [90-280kW]
Setting Range 05~15kHz 05~15kHz 04~10kHz
Super Heavy Duty
Factory Setting
8kHz 6kHz 5kHz
1kHz
8kHz
15kHz
Carrier
Frequency
Acoustic
Noise
Electromagnetic
Noise or Leakage
Current
Heat
Dissipation
Current
Wave
Significant
Minimal
Minimal
Minimal
Significant
Significant
From the table, we see that the PWM carrier frequency has a significant influence on the
electromagnetic noise, AC motor drive heat dissipation, and motor acoustic noise. Therefore, if the
surrounding noise is greater than the motor noise, lower the carrier frequency is good to reduce the
temperature rise. Although it is quiet operation in the higher carrier frequency, the entire wiring and
interference resistance should be considerate.
When the carrier frequency is higher than the factory setting, it needs to protect by decreasing the
carrier frequency. See Pr.06-55 for the related setting and details.

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Изучите настройки параметров для выбора нагрузки в приводах переменного тока. Узнайте о частоте несущей и ее влиянии на шум и теплоотдачу.