Specifications; Heavy Duty And Normal Duty Ratings - YASKAWA A1000 Series Quick Start Manual

A Specifications
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Specifications

◆ 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 124
Setting Parameter
C6-01
0: Heavy Duty
HD Rating varies by model
(default)
1: Normal Duty ND Rating varies by model
<1> Refer to Three-Phase 200 V Class Drives on page 125
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).
124
Table 59 Selecting the Appropriate Load Rating
Rated Output Current
<1>
<1>
for the differences between HD and ND.
Overload Tolerance
150% rated output current for 60 s
120% rated output current for 60 s varies by
model
and Three-Phase 400 V Class Drives on page 126
YASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide
Default Carrier Frequency
2 kHz
2 kHz, Swing PWM
for information on rating changes