Machine Resonance Suppression Filter Restrictions; Machine Resonance Suppression Filter Precautions; Machine Resonance Suppression Filter Setting Method - Mitsubishi Electric MR-J5 User Manual

Machine resonance suppression filter restrictions

• Enabling the machine resonance suppression filter 4 disables the shaft resonance suppression filter. Using the shaft
resonance suppression filter is recommended because it has been adjusted optimally in accordance with the usage
situation. The shaft resonance suppression filter is enabled as a default.

Machine resonance suppression filter precautions

• The machine resonance suppression filter is a delay factor for the servo system. Therefore, the vibration increases if an
incorrect resonance frequency is set or the notch characteristics are too deep or too wide.
• A deeper notch has a higher effect on the machine resonance suppression but increases the phase delay, and this may
cause a higher vibration.
• A wider notch has a higher effect on the machine resonance suppression, but increases the phase delay and vibration.

Machine resonance suppression filter setting method

Set the machine resonance suppression filter with the servo parameters shown below.
Item Servo parameter
Enable/Disable
Machine resonance [Pr. PB01.0 Filter tuning mode
suppression filter 1 selection]
Machine resonance [Pr. PB16.0 Machine
suppression filter 2 resonance suppression filter 2
selection]
Machine resonance [Pr. PB47.0 Machine
suppression filter 3 resonance suppression filter 3
selection]
Machine resonance [Pr. PB49.0 Machine
suppression filter 4 resonance suppression filter 4
selection]
Machine resonance [Pr. PB51.0 Machine
suppression filter 5 resonance suppression filter 5
selection]
Notch frequency Notch depth, notch width
[Pr. PB13 Machine resonance [Pr. PB14.1 Notch depth
suppression filter 1] selection 1]
[Pr. PB14.2 Notch width
selection 1]
[Pr. PB15 Machine resonance [Pr. PB16.1 Notch depth
suppression filter 2] selection]
[Pr. PB16.2 Notch width
selection]
[Pr. PB46 Machine resonance [Pr. PB47.1 Notch depth
suppression filter 3] selection]
[Pr. PB47.2 Notch width
selection]
[Pr. PB48 Machine resonance [Pr. PB49.1 Notch depth
suppression filter 4] selection]
[Pr. PB49.2 Notch width
selection]
[Pr. PB50 Machine resonance [Pr. PB51.1 Notch depth
suppression filter 5] selection]
[Pr. PB51.2 Notch width
selection]
Remark


Shaft resonance
suppression filter 2 cannot
be set when machine
resonance suppression filter
3 is enabled.
Shaft resonance
suppression filter cannot be
set when machine
resonance suppression filter
4 is enabled.
Machine resonance
suppression filter 5 cannot
be used when the robust
filter is enabled (i.e., when
[Pr. PE41.0 Robust filter
selection] is set to "1"
(enabled)).
4 VIBRATION SUPPRESSION FUNCTION
4.2 Machine resonance suppression filter
4
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