Mitsubishi Electric MR-J4-10B(-RJ) Instruction Manual page 590

17. APPLICATION OF FUNCTIONS
The following shows the function block diagram of the vibration tough drive function.
The function detects machine resonance frequency and compares it with [Pr. PB13] and [Pr. PB15], and
reset a machine resonance frequency of a parameter whose set value is closer.
Machine resonance
suppression filter 1
Machine resonance
suppression filter 2
Machine resonance
suppression filter 3
Machine resonance
suppression filter 4
Machine resonance
suppression filter 5
Updates the parameter
whose setting is the
closest to the machine
resonance frequency.
+
Command Command
filter
pulse train -
Torque
ON
ALM
(Malfunction)
OFF
ON
WNG
(Warning)
OFF
ON
MTTR
(During tough drive)
OFF
Filter Setting parameter
PB01/PB13/PB14
PB15/PB16
PX17/PX18
PX19/PX20
PX21/PX22
Vibration tough drive
[Pr. PB13] [Pr. PB15]
Machine
resonance
suppression
filter 1
[Pr. PX19]
[Pr. PX20]
Machine
resonance
suppression
filter 4
[Pr. PB17]
Shaft
resonance
suppression
filter
5 s
Precaution
The filter can be set automatically with
"Filter tuning mode selection" in [Pr.
PB01].
Enabling the machine resonance
suppression filter 4 disables the shaft
resonance suppression filter.
Using the shaft resonance suppression
filter is recommended because it is
adjusted properly depending on the
usage situation.
The shaft resonance suppression filter is
enabled for the initial setting.
Enabling the robust filter disables the
machine resonance suppression filter 5.
The robust filter is disabled for the initial
setting.
[Pr. PX17]
Machine Machine
resonance resonance
suppression suppression
filter 2 filter 3
[Pr. PX21]
[Pr. PX31]
Machine
resonance
suppression
filter 5
Robust filter
[Pr. PX26 Vibration tough drive - Oscillation detection level]
Detects the machine resonance and reconfigures the filter automatically.
During tough drive (MTTR) is not turned on in the vibration tough drive function.
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Parameter that is
reset with vibration
tough drive function
PB13
PB15
Load
Encoder
M
PWM
Servo motor