Heavy Duty And Normal Duty Ratings - YASKAWA A1000 Technical Manual

A.1 Heavy Duty and Normal Duty Ratings
A.1 Heavy Duty and Normal Duty Ratings
The capacity of the drive is based on two types of load characteristics: Heavy Duty (HD) and Normal Duty (ND).
Refer to Selecting the Appropriate Load Rating on page 438
Setting Parameter C6-01
0: Heavy Duty (default) HD Rating varies by model
1: Normal Duty ND Rating varies by model
<1> Refer to Three-Phase 200 V Class Drives on page 439
based on drive model.
HD and ND: HD refers to applications requiring constant torque output, while ND refers to applications with variable torque
TERMS TERMS TERMS
needs. The drive allows the user to select HD or ND torque depending on the application. Fans, pumps, and blowers should use
ND (C6-01 = 1), and other applications generally use HD (C6-01 = 0).
Swing PWM: Swing PWM equivalent to a 2 kHz audible noise. This function turns the motor noise into a less obtrusive white
noise.
Note: Differences between HD ratings and ND ratings for the drive include rated input and output current, overload capacity, carrier
frequency, and current limit. The default setting is for HD (C6-01 = 0).
438
Table A.1 Selecting the Appropriate Load Rating
Rated Output Current
150% rated output current for 60 s
<1>
120% rated output current for 60 s varies by model
<1>
and
for the differences between HD and ND.
Overload Tolerance
Three-Phase 400 V Class Drives on page 440
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
Default Carrier Frequency
2 kHz
2 kHz, Swing PWM
for information on rating changes