Delta VFD-B Series User Manual

Chapter 5 Parameters_VFD-B Series
Revision 10/2005, BE13, SW V4.08 5-41
02 - 03
PWM Carrier Frequency Selections Unit: 1
230V/460V Series
Power
1-5hp
0.75-3.7kW
7.5-25hp
5.5-18.5kW
30-60hp
22-45kW
75-100hp
55-75kW
Setting Range 01-15 kHz 01-15 kHz 01-09 kHz 01-06 kHz
Factory Setting 15 kHz 09 kHz 06 kHz 06 kHz
575V Series
Power
1-15hp
0.75-11kW
20-60hp
15-45kW
75-100hp
55-75kW
Setting Range 01-10 kHz 01-08 kHz 01-06 kHz
Factory Setting 06 kHz 06 kHz 06 kHz
This parameter determines the PWM carrier frequency of the AC motor drive.
1kHz
8kHz
15kHz
Carrier
Frequency
A
coustic
Noise
Electromagnetic
Noise or leakage
current
Heat
Dissipation
Current
Wave
Significant
Minimal
Significant
Minimal
Minimal
Significant
Minimal
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.
02 - 04
Motor Direction Control
Factory Setting: 00
Settings 00 Enable Forward/Reverse operation
01 Disable Reverse operation
02 Disabled Forward operation
The parameter determines the AC motor drive direction of rotation. See Chapter 2 for definition of direction of
rotation.

Delta VFD-B Series Specifications

General

Brand	Delta
Model	VFD-B Series
Category	DC Drives
Language	English