Adtech iMASTER – A1 Series User Manual page 175

A1-User's Manual
98.02 HD/ND (torque type) select

0: Heavy duty (HD) ----- Initial value
1: Normal duty (ND)
Depending on this parameter, VFD rated current, PWM carrier frequency and Stall level will
be changed
Set 0: Heavy duty (HD)

Hoists, conveyors, pump process; select HD
Set 1: Normal duty (ND)

Fans, or centrifugal pump applications; select ND

98.03 PWM carrier frequency

Range: 1.0 ~ 10.0 kHz in 0.1 kHz
Initial value: 3.0 kHz
Select Heavy Duty or Normal Duty factory setting per VFD model and loading type
If the value is high, noise of motor is decreased and noise and temperature of
VFD is increased
Model
A1-032A-2 A1-045A-2
A1-064A-2 A1-076A-2
A1-090A-2 A1-114A-2
A1-140A-2 A1-170A-2
A1-205A-2 A1-261A-2
A1-310A-2
A1-016A-4 A1-023A-4
A1-032A-4 A1-038A-4
A1-045A-4 A1-058A-4
A1-075A-4 A1-090A-4
A1-110A-4 A1-149A-4
A1-176A-4 A1-217A-4
A1-260A-4 A1-296A-4
98.04 PWM carrier mode

0: Normal ----- Initial value
1: Swing PWM1
Swing PWM1 is used to decrease noise of motor
It changes the PWM carrier frequency in between 2.25 kHz and 2.75 kHz
'31.18', '98.03',
Related Parameters:
Range
1.0 ~ 10.0 kHz
1.0 ~ 10.0 kHz
1.0 ~ 16.0 kHz
1.0 ~ 10.0 kHz
Model
A1-032A-2 A1-045A-2
A1-064A-2 A1-076A-2
A1-090A-2 A1-114A-2
A1-140A-2 A1-170A-2
A1-205A-2 A1-261A-2
A1-310A-2
A1-016A-4 A1-023A-4
A1-032A-4 A1-038A-4
A1-045A-4 A1-058A-4
A1-075A-4 A1-090A-4
A1-110A-4 A1-149A-4
A1-176A-4 A1-217A-4
A1-260A-4 A1-296A-4
１７１
HD ( '98.02' = 0) ND ( '98.02'
5.0 kHz 3.0 kHz
3.0 kHz 2.0 kHz
5.0 kHz 3.0 kHz
3.0 kHz 2.0 kHz
= 1)