FATEK SD3 Series - Page 331

39
t
T[s]
N
F=N/T[Hz]
F[Hz]
0dB
-3dB
0dB
-3dB
[-]
No.79.0
No.86.0
No.360.0
No.74.0
No.83.0
No.357.0
No.74.0
No.83.0
No.357.0
[Hz]
No.75.0
No.84.0
No.358.0
SD3 Series Instruction Manual
Tuning
7
7. Tuning
3. Tuning Parameters
3. Tuning Parameters
Function
Apply this lter if the machine end point is still vibrating after su󱐰cient tuning was performed
and the smoothing lter was applied�
Has vibration suppression e󱐯ect on mechanical systems where the vibrations don ' t appear
in the torque output waveform�
When compared to the command smoothing lter, the position command lter is more
e󱐯ective in reducing the absolute position deviation (Status No�80)�
Parameter
Notch Filter Filter 1 Filter 2 Filter 3
Frequency
Default:
10 [0�1 Hz]
No�74�0 No�83�0 No�357�0
Setting range:
10 to 2,000
Width
Default:
512
No�75�0 No�84�0 No�358�0
Setting range:
128 to 2,048
Depth
Default:
0
No�79�0 No�86�0 No�360�0
Setting range:
0 to 100
Remark
Increasing the notch width will make the position deviation large�
Too large a notch width or setting the second level notch lter will result in better
vibration suppression; however, the position deviation will be larger� Set this lter within
the acceptable range of position deviation�
Tuning Tip
Check the following before applying the lter
・The command from the host controller is reasonable
・The equipment is installed rmly and properly�
・The gain parameters such as inertia ratio are properly set�
・The command smoothing lters 2 (and 1) are set�
・The integral gain has been decreased and vibrations are unlikely to occur�
Start the equipment operation and apply the vibration frequency (measured at the
equipment end) to the notch frequency� If the vibration cannot be suppressed, increase
the notch width (by 800 as a rough standard)� To reduce the position deviation during
operation, increase the notch depth of a smaller vibration frequency�
5 Setting Parameters List of Parameters
Position Command: Notch Filter
Vibration frequency
Vibration frequency
Depth
[times]
Gain [dB]
Torque Command Value
or
ABS Position Deviation
Gain [dB]
Width