Heavy Duty And Normal Duty Ratings; Heavy Duty And Normal Duty Ratings - YASKAWA V1000 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 318
capacity ratings are listed on the following pages.
Setting
Rated Output Current
Parameter C6-01
HD Rating
0: Heavy Duty
varies by model
ND Rating
1: Normal Duty
(default)
varies by model
<1> The following pages list information on rating changes based on drive model.
• HD and ND: HD refers to applications requiring constant torque output, while ND refers to applications
TERMS TERMS
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).
318
Table A.1 Selecting the Appropriate Load Rating
150% rated output current for 60 s
<1>
120% rated output current for 60 s
<1>
varies by model
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
for the differences between HD and ND. Specifications for
Overload Tolerance Default Carrier Frequency
8/10 kHz
varies by model
2 kHz, Swing PWM