Heavy Duty And Normal Duty Ratings - YASKAWA V1000 Quick Start Manual

6.1 Heavy Duty and Normal Duty Ratings

6.1 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 Table 6.1 for the differences between HD and ND. Specifications for capacity
ratings appear are listed on the following pages.
Setting
Parameter Rated Output Current
C6-01
0: Heavy Duty HD Rating
(default) varies by model
1: Normal Duty ND Rating
(default) varies by model
<1> The following pages list information on rating changes based on drive model.
HD and ND
TERMS TERMS TERMS
• HD refers to applications requiring constant torque output, while ND refers to
applications with variable torque 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 ND
(C6-01=1).
106
Table 6.1 Selecting the Appropriate Load Rating
150% rated output current for 60 s
<1>
120% rated output current for 60 s.
Varies by model
<1>
YASKAWA ELECTRIC TOEP C710606 14A YASKAWA AC Drive - V1000 Quick Start Guide
Overload Tolerance
<1>
Carrier Frequency
2-15 kHz
varies by model
2 kHz, Swing PWM