Table 1.26 Differences between Heavy Duty and Normal Duty
Characteristics
Heavy Duty Rating (HD)
Normal Duty Rating (ND)
C6-01
0
1
Performance
100 %
100 %
0
Motor Speed
Rated Load
Overload
150 %
Motor Speed
0
100 %
100 %
120 %
Rated Load
Overload
Application
Use Heavy Duty Rating for applications requiring a high
overload tolerance with constant load torque, such as
extruders and conveyors.
Use Normal Duty Rating for applications in which the torque
requirements drop along with the speed, such as fans and
pumps where a high overload tolerance is not required.
Overload capability (oL2)
150% of drive rated Heavy Duty current for 60 s
120% of drive rated Normal Duty current for 60 s
Stall Prevention during
Acceleration (L3-02)
150%
120%
Stall Prevention during
Run (L3-06)
150%
120%
Default Carrier Frequency
2 kHz
2 kHz Swing PWM
Note:
Changing the Duty Mode selection automatically changes the maximum size motor that the drive can run, sets the E2-
oo
parameters to
appropriate values (E4-
oo
for motor 2), and recalculates parameter settings determined by motor capacity (e.g., b8-04, L2-03).
n
C6-02: Carrier Frequency Selection
Sets the switching frequency of the drive output transistors. Changes to the switching frequency lower audible noise and reduce
leakage current.
No.
Parameter Name
Setting Range
Default
C6-02
Carrier Frequency Selection
1
1
Setting
C6–02
Carrier Frequency
1
2.0 kHz
1.3 C: Tuning
58
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
Summary of Contents for A1000 HHP
Page 359: ......
