Delta VFD-M-D series User Manual

Chapter 5 Parameters|VFD-M-D Series
5-24 Revision Jan. 2007, MDE2, SW V1.05
Advantage Disadvantage
04 Multi-step
control mode 3
Uses edge trigger for speed switch. It
has 5-step speed for the single
direction to simplify the detection of the
position sensor.
There is only 5-step speed for the
single direction. It needs to run to the
close complete position after power on
again or AC motor drive stops due to
the edge trigger.
05 Multi-step
control mode 4
Uses level trigger for speed switch. It
has 5-step speed for the single
direction to simplify the detection of the
position sensor.
There is only 5-step speed for the
single direction.
0 - 10
PWM Carrier Frequency Selection
Unit: 1
Settings 01 to 15kHz Factory Setting: 12
Power Setting Range Factory Setting
230V Series
0.5HP (0.4kW) 01~15kHz 12kHz
 This parameter determines the PWM carrier frequency of the AC motor drive.
1kHz
8kHz
15kHz
Carrier
Frequency
Acoustic
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.
0 - 11 Automatic Voltage Regulation (AVR)
Factory Setting: 00
Settings 00 AVR function enabled
01 AVR function disabled
02 AVR function disabled for deceleration
 The rated voltage of the motor is usually AC220V/200V 60Hz/50Hz and the input voltage of
the AC motor drive may vary between 180V to 264 VAC 50Hz/60Hz. Therefore, when the AC
motor drive is used without AVR function, the output voltage will be the same as the input
voltage. When the motor runs at voltages exceeding the rated voltage with 12% - 20%, its

Delta VFD-M-D series Specifications

General

Brand	Delta
Model	VFD-M-D series
Category	Controller
Language	English