308 YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V 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 308 for the differences between HD and ND. Specifications for
capacity ratings are listed on the following pages.
Table A.1 Selecting the Appropriate Load Rating
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).
Setting Parameter
C6-01
Rated Output Current Overload Tolerance Default Carrier Frequency
0: Heavy Duty
(default)
HD Rating varies by model
<1>
<1> The following pages list information on rating changes based on drive model.
150% rated output current for 60 s 8/10 kHz varies by model
1: Normal Duty ND Rating varies by model <1> 120% rated output current for 60 s varies by model 2 kHz
TERMS
TERMS
HD and ND: HD refers to applications requiring constant torque output, while ND refers to
applications with variable torque needs.
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