Delta C2000 Series User Manual page 266

Carrier Frequency
2 15kHz
Settings
This parameter determinates the PWM carrier frequency of the AC motor drive.
Models
Setting Range
Normal Duty Factory Setting
Heavy Duty Factory Setting
Setting Range
Carrier
Frequency
1kH z
8kH z
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
Bit 0: Control command by PLC force control
Settings
Bit 1: Frequency command by PLC force control
Bit 2: Position command by PLC force control
Bit 3: Torque command by PLC force control
This parameter determines if frequency command or control command is occupied by PLC
Source of the Master Frequency Command AUTO
0: Digital keypad
Settings
1: RS-485 serial communication
2: External analog input (Pr.03-00)
3: External UP/DOWN terminal
4: Pulse input without direction command (Pr.10-16 without direction)
5: Pulse input with direction command (Pr.10-16)
6: CANopen communication card
Chapter 12 Description of Parameter Settings
575V series
2-20HP [1.5-15kW]
02~15kHz
4kHz
Electromagnetic
Acoustic
Noise or Leakage
Noise
Current
Significant
Minimal
Minimal
Significant
12.1-00-9
Factory setting: Table below
690V series
25-745HP [22-560KW]
02~9kHz
4kHz
Heat
Current
Dissipation
Wave
M inimal
Significant
Factory Setting: Read Only
Factory Setting: 0
830HP [630kW]
02~9kHz
3kHz