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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
Three-Phase 200 V Class Drives on page 455
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
150% rated output current for 60 s
1: Normal Duty
ND Rating varies by model
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