Delta CT2000 Series User Manual page 204

Load Selection

Settings
 Light duty: over load, rated output current 160% in 3 second. Please refer to Pr.00-17 for the setting
of carrier wave. Refer to chapter specifications or Pr.00-01 for the rated current.

Heavy duty: over load, rated output current 180% in 3 second. Please 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
Settings
 This parameter determinates the PWM carrier frequency of the AC motor drive.
Models
Setting Range
Light Duty Factory Setting
Heavy Duty Factory Setting
Carrier
Frequency
15kHz
 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.
Reserved
PLC Command Mask
Settings
 This parameter determines if frequency command or control command is occupied by PLC.
0: Light Duty
1: Heavy Duty
2~15kHz
1-20HP [0.75-15kW] 25-75HP [18.5-55kW] 100-475HP [75-355kW]
02~15kHz
8kHz
Acoustic
Noise
Significant
1kH z
8kH z
Minimal
Bit 0: Control command by PLC force control
Bit 1: Frequency command by PLC force control
Bit 2: Position command by PLC force control
Bit 3: Torque command by PLC force control
Chapter 12 Description of Parameter SettingsCT2000 Series
Factory setting: Table below
460V Series
02~10kHz
6kHz
2kHz
Electromagnetic
Noise or Leakage
Current
Minimal
Significant
12.1-00-11
Factory Setting: 0
02~09kHz
4kHz
Heat
Current
Dissipation
Wave
Minimal
Significant
Factory Setting: Read Only