Heavy Duty And Normal Duty Ratings; 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 the following table for the differences between HD and ND.
Setting Parameter
C6-01
0: Heavy Duty
HD Rating varies by model
1: Normal Duty
ND Rating varies by model
(default)
<1> Refer to Power Ratings on page 163
• HD and ND: HD refers to applications requiring constant torque output, while ND refers to applications with
TERMS TERMS
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).
162
Table A.1 Selecting the Appropriate Load Rating
Rated Output Current
<1>
<1>
for information on rating changes based on drive model.
Overload Tolerance
150% rated output current for 60 s
120% rated output current for 60 s varies by model 2 kHz, Swing PWM
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
Default Carrier Frequency
2 kHz