Parameter Details
12
12.4 C: Tuning
YASKAWA SIEPC71061737D GA800 Drive Technical Reference 791
■ C5-38: Motor 2 Load Inertia Ratio
No.
(Hex.)
Name Description
Default
(Range)
C5-38
(0279)
Expert
Motor 2 Load Inertia Ratio
Sets the load inertia ratio for the motor 2 inertia.
1.0
(0.0 - 6000.0)
The drive automatically sets C5-38 to the value of [Load Inertia Ratio] when you do Inertia Tuning or ASR Tuning.
■ 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.
■ C5-50: Notch Filter Frequency
No.
(Hex.)
Name Description
Default
(Range)
C5-50
(0B14)
Expert
Notch Filter Frequency
Sets the machine resonance frequency.
0 Hz
(0, or 2 to 100 Hz)
Machine resonance can cause high-frequency noise and vibration during operation. A notch filter can help prevent the
noise and vibration. Notch filters set the resonant frequency of the machine to remove specific vibrational frequency
components caused by machine resonance.
Note:
• Correctly set the value for the notch filter frequency. If the frequency value is too low for the speed loop response frequency, the speed
control function will not function correctly. Set the frequency to be a minimum of 4 times the speed loop response frequency.
• Set C5-50 = 0 [0 Hz] to disable the notch filter.
■ C5-51: Notch Filter Bandwidth
No.
(Hex.)
Name Description
Default
(Range)
C5-51
(0B15)
Expert
Notch Filter Bandwidth
Sets the notch width of the notch filter.
1.0
(0.5 - 5.0)
Note:
Set C5-50 = 0 [Notch Filter Frequency = 0 Hz] to disable the notch filter.
◆ 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.
1
(0, 1)
0 : Heavy Duty Rating
The overload tolerance is 150% of the rated output current for 60 seconds.
1 : Normal Duty Rating
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