Operation Of Vibration Tough Drive - Mitsubishi Electric MELSERVO J5 Series User Manual

Operation of vibration tough drive

The function block diagram of the vibration tough drive function is indicated. When the oscillation level exceeds the level set in
[Pr. PF23 Vibration tough drive oscillation detection level], set [Pr. PB13 Machine resonance suppression filter 1] and [Pr.
PB15 Machine resonance suppression filter 2] depending on the detected machine resonance frequency and the machine
resonance suppression filter being used. At this time, [AL. 0F0 Tough drive warning] is outputted for 5 s, and the number of
tough drive operations is incremented once.
[Pr. PA20.1] Machine
resonance
suppression
filter 1
1 Disabled
Enabled
Disabled
Enabled
2 Disabled
Enabled
Disabled
Enabled
Advanced
Command
vibration
Command
pulse train notch filter suppression
control 2
Machine Servo parameter that is set with the vibration tough drive function
resonance
suppression
filter 2
Disabled The vibration tough drive does not operate.
Disabled [Pr. PB13 Machine resonance suppression filter 1]
Enabled [Pr. PB15 Machine resonance suppression filter 2]
Enabled The detected machine resonance frequency are compared with the setting values of [Pr.
PB13] and [Pr. PB15], and then the setting value closest to the detected machine resonance
frequency is reset.
If the detected machine resonance frequency is the center value of [Pr. PB13 Machine
resonance suppression filter 1] and [Pr. PB15 Machine resonance suppression filter 2], reset
[Pr. PB13 Machine resonance suppression filter 1].
Disabled [Pr. PB13 Machine resonance suppression filter 1]
Disabled If the oscillation cannot be suppressed even when [Pr. PB15 Machine resonance
suppression filter 2] is set, set [Pr. PB13 Machine resonance suppression filter 1] again.
Enabled If the oscillation cannot be suppressed even when [Pr. PB13 Machine resonance
suppression filter 1] is set, reset [Pr. PB15 mechanical resonance suppression filter 2].
Enabled The detected machine resonance frequency are compared with the setting values of [Pr.
PB13] and [Pr. PB15], and then the setting value closest to the detected machine resonance
frequency is reset.
If the detected machine resonance frequency is the center value of [Pr. PB13 Machine
resonance suppression filter 1] and [Pr. PB15 Machine resonance suppression filter 2], reset
[Pr. PB13 Machine resonance suppression filter 1].
The servo parameters
are updated according to
the table above.
Speed
[Pr. PB18] [Pr. PB13]
control
Machine
+ Low-pass
resonance
filter setting
- suppression
filter 1
[Pr. PB48]
[Pr. PB49]
Machine
resonance
suppression
filter 4
[Pr. PB17]
Shaft
resonance
suppression
filter
Vibration tough drive
[Pr. PB23]
[Pr. PB47]
[Pr. PB23.3] = "0" or
[Pr. PB15]
[Pr. PB47.0] = "1"
Machine
resonance
[Pr. PB23.3] = "1" and
suppression
[Pr. PB47.0] = "0"
filter 2
[Pr. PB50]
[Pr. PE41]
Machine
resonance
suppression
filter 5
Robust filter
4 VIBRATION SUPPRESSION FUNCTION
[Pr. PB46]
Machine
resonance
suppression
filter 3
Shaft
resonance
suppression
filter 2
Load
Encoder
PWM M
Servo motor
4.9 Vibration tough drive
4
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