C6: Carrier Frequency - YASKAWA GA700 Technical Manual

11.4 C: Tuning
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C6: Carrier Frequency

C6 parameters are used to set the selection of drive duty rating, selection of carrier frequency, and upper and
lower limits of carrier frequencies.
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C6-01: Normal / Heavy Duty Selection
No.
Name
(Hex.)
C6-01 Normal / Heavy Duty
Selection
(0223)
0 : Constant Torque Application Heavy Duty Rating 1 (HD1)
The overload tolerance is 150% of the rated output current for 60 seconds.
1 : Variable Torque Application Normal Duty Rating 1 (ND1)
The overload tolerance is 110% of the rated output current for 60 seconds.
The ratings for this product are based on two types of load ratings depending on the load characteristics of an
application: Heavy Duty Rating (HD) and Normal Duty Rating (ND).
The drive rated output current, overload tolerance, and acceleration stall prevention level differs between HD and
ND modes. Configure in accordance with the duty rating of the selected drive capacity. When HD is selected, the
tolerance is a 150% overload state for 60 seconds. When ND is selected, the tolerance is a 110% overload state for
60 seconds. In other words, the rated output current for ND drives is higher than that for HD drives. Refer to
"Model Specifications (200 V Class)" and "Model Specifications (400 V Class)" for more information on rated
output current.
Table 11.30 Differences between Heavy Duty Rating and Normal Duty Rating
Item
C6-01 Setting
Load characteristics
Application
Overload Tolerance
Stall Prevent Level during
Accel
Stall Prevent Level during
Run
Carrier Frequency
Note:
• Configure the stall prevention level used during acceleration with L3-02 and the stall prevention level used during run with L3-06.
• Changing C6-01 changes the maximum capacity of applicable drive motors. The setting values of E2-xx and E4-xx are automatically
changed to suitable values. The following parameters that are dependent on motor output are also automatically changed.
–b8-04 [Energy Saving Coefficient Value]
–C5-17 [Motor Inertia]
–C5-37 [Motor 2 Inertia]
–L2-03 [Momentary Power Loss Min BB Time]
–L3-24 [Motor Accel Time for Inertia Cal]
–n5-02 [Motor Acceleration Time]
664
V/f CL-V/f OLV
Selects the drive duty rating.
Heavy Duty Rating (HD1)
0
This is applicable when significant overload tolerance
is required during startup, acceleration, deceleration,
and similar scenarios.
• Extruder
• Conveyor
• Cranes and hoists
• Applications that require constant torque or high
overload capacity
150% - 60 seconds
150%
150%
2 kHz
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
Description
CLV AOLV OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
This is applicable when overload tolerance is not
particularly necessary.
• Fan
• Pump
• Blower
Default
(Range)
(0, 1)
Normal Duty Rating (ND1)
1
110% - 60 seconds
110%
110%
2 kHz Swing-PWM
0