Mitsubishi Electric Melservo-J3 Series MR-J3-B, Instruction Manual

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10 - 4
10. SPECIAL ADJUSTMENT FUNCTIONS
POINT
"Filter OFF" enables a return to the initial value.
When adaptive tuning is executed, vibration sound increases as an excitation
signal is forcibly applied for several seconds.
When adaptive tuning is executed, machine resonance is detected for a
maximum of 10 seconds and a filter is generated. After filter generation, the
adaptive tuning mode automatically shifts to the manual mode.
Adaptive tuning generates the optimum filter with the currently set control
gains. If vibration occurs when the response setting is increased, execute
adaptive tuning again.
During adaptive tuning, a filter having an optimal notch depth for the set
control gain is generated. To allow a filter margin against machine resonance,
increase the notch depth in the manual mode.
10.3 Machine resonance suppression filter
(1) Function
The machine resonance suppression filter is a filter function (notch filter) which decreases the gain of the
specific frequency to suppress the resonance of the mechanical system. You can set the gain decreasing
frequency (notch frequency), gain decreasing depth and width.
Mechanical
system
response
level
Machine resonance point
Frequency
Notch
depth
Notch frequency
Frequency
Notch width
Notch depth
You can use the machine resonance suppression filter 1 (parameter No.PB13, PB14) and machine
resonance suppression filter 2 (parameter No.PB15, PB16) to suppress the vibration of two resonance
frequencies. Execution of adaptive tuning in the filter tuning mode automatically adjusts the machine
resonance suppression filter. The filter tuning mode shifts to the manual mode after the predetermined
period of time. The manual mode enables manual setting using the machine resonance suppression filter 1.
Mechanical
system
response
level
Machine resonance point
Frequency
Notch
depth
Frequency
Parameter No.PB01,
PB13, PB14 Parameter No.PB15,
PB16