12.4 C: Tuning
562 YASKAWA SIEPC71061753C GA500 Technical Manual
■ C5-29: Speed Control Response
No.
(Hex.)
Name Description
Default
(Range)
C5-29
(0B18)
Expert
Speed Control Response
Sets the level of speed control responsiveness. Usually it is not necessary to change this setting.
1
(0, 1)
If a high level of speed control responsiveness is necessary, set C5-29 = 1, then adjust the speed control (ASR)
parameter.
0 : Standard
1 : High Performance 1
■ C5-39: ASR Primary Delay Time Const 2
No.
(Hex.)
Name Description
Default
(Range)
C5-39
(030D)
ASR Primary Delay Time
Const 2
Sets the filter time constant used when the torque reference is output from ASR. Usually it is not
necessary to change this parameter.
0.000 s
(0.000 - 0.500 s)
If you have a load with low rigidity or if oscillation is a problem, increase this setting in 0.01 unit increments.
◆ C6: Duty & 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.
■ C6-01: Normal / Heavy Duty Selection
No.
(Hex.)
Name Description
Default
(Range)
C6-01
(0223)
Normal / Heavy Duty
Selection
Sets the drive duty rating.
0
(0, 1)
0 : Heavy Duty Rating
The overload tolerance is 150% of the rated output current for 60 seconds.
1 : Normal Duty Rating
The overload tolerance is 110% of the rated output current for 60 seconds.
There are two types of load ratings for this product depending on the load characteristics of the application: Heavy
Duty Rating (HD) and Normal Duty Rating (ND).
The drive rated output current, overload tolerance, and acceleration stall prevention level change when the duty
rating changes. Set the drive to agree with the duty rating of the selected drive capacity. In HD, the tolerance is
150% overload for 60 seconds. In ND, the tolerance is 110% overload for 60 seconds. The rated output current for
ND drives is higher than the rated output current for HD drives. Refer to Model-Specific Specifications (Single-
Phase 200 V Class) on page 330, Model Specifications (Three-Phase 200 V Class) on page 331, and Model
Specifications (Three-Phase 400 V Class) on page 335 for more information about the rated output current.
Table 12.39 Differences between Heavy Duty Rating and Normal Duty Rating
Item Heavy Duty Rating (HD) Normal Duty Rating (ND)
C6-01 Setting 0 1
Load Characteristics
Application
A high overload tolerance is necessary during start up, acceleration,
deceleration, and equivalent conditions.
• Extruder
• Conveyor
• Cranes and hoists
• Constant torque or high overload capacity are necessary.
Overload tolerance is not necessary.
• Fan
• Pump
• Blower
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