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Drive Duty and Carrier Frequency Selection: C6-01 and C6-02
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Drive Duty Selection: C6-01
The drive
has two different duty modes from which to select based on the load characteristics.
The drive rated current, overload capacity, and carrier frequency will change depending upon
the duty mode selection. Use parameter C6-01 (Duty Cycle) to select Heavy Duty (HD) or
Normal Duty (ND) for the application. The default setting is ND. Refer to Specifications on
page 197 for details about the rated current.
HD and ND Mode Selections
Mode HD Rating ND Rating
C6-01 0 1
Characteristics
100 %
100 %
0 Motor Speed
Rated Load
Overload
150 %
Motor Speed
0
100 %
100 %
120 %
Rated Load
Overload
Application
Use HD Rating is designed applications
requiring a high overload tolerance with
constant load torque, like conveyors.
Use ND Rating for applications in which the
torque requirements
drop along with the speed.
Examples include fans or pumps where a high
overload tolerance is not required.
Overload capability
(oL2)
100% continuous, 150% of drive rated current
for 60 s
100% continuous, 120% of drive rated current
for 60 s
C6-02 2.0 to 15.0 kHz (default depends on drive capacity)
L3-02 Stall
Prevention during
Acceleration
150% 120%
L3-06 Stall
Prevention during
Run
150% 120%
Note: 1. By selecting
HD/ND, motor parameter E2 is changed to the value for the maximum applicable motor.
2. Swing PWM uses 2.0 kHz carrier frequency as a base. The application of special PWM patterns
keeps the audible noise of the motor low.
4.5 Basic Operation
YASKAWA ELECTRIC TOEP C710606 26B YASKAWA AC Drive – J1000 Quick Start Guide
95
4
Start-Up Programming
& Operation
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