Setting 0: Disabled
Integral operation occurs only during constant speed and not during acceleration or deceleration.
Setting 1: Enabled
Integral operation is always enabled.
n
C5-37, C5-38: Motor 2 Inertia, Motor 2 Load Inertia Ratio
These parameters function for motor 2 the same way that C5-17 and C5-18 function for motor 1. These parameters are set
automatically when Inertia Tuning and ASR Tuning are performed for motor 2 in CLV and CLV/PM control modes. Refer
to Auto-Tuning on page 100 for details on Auto-Tuning or enter the data manually.
No. Parameter Name Setting Range Default
C5-37 Motor 2 Inertia
0.0001 to 600.00 kgm
2
Determined by C6-01 and
o2-04
C5-38 Motor 2 Load Inertia Ratio 0.0 to 6000.0 1.0
u
C6: Carrier Frequency
n
C6-01: Drive Duty Mode Selection
The drive has two different duty modes from which to select based on the load characteristics. The drive rated current, overload
capacity, and maximum output frequency will change depending upon the duty mode selection. Use parameter C6-01 to select
Heavy Duty (HD) or Normal Duty (ND) for the application. The default setting is ND. Refer to Heavy Duty and Normal
Duty Ratings on page 372 for details about the rated current.
No. Parameter Name Setting Range Default
C6-01 Duty Mode Selection 0, 1 1 (ND)
Table 5.15 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, n5-02, L3-24,
C5-17, and C5-37).
5.3 C: Tuning
166
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
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