454 YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 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). The
user can select HD or ND torque depending on the application. Fans, pumps, and blowers should use ND, while other
applications generally use HD.
Refer to Selecting the Appropriate Load Rating on page 454 for the differences between HD and ND.
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, and
current limit. The default setting is HD (C6-01 = 0).
Setting Parameter C6-01
<1> Refer to Three-Phase 200 V Class Drives on page 455 and Three-Phase 400 V Class Drives on page 456 for information on rating changes
based on drive model.
Rated Output Current Overload Tolerance
0: Heavy Duty (default) HD Rating varies by model
<1>
150% rated output current for 60 s
1: Normal Duty ND Rating varies by model
<1>
120% rated output current for 60 s varies by model
SIEP_C710636_02B_1_0.book 454 ページ ２０１５年１１月２５日 水曜日 午後４時５６分
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