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7 SPECIAL ADJUSTMENT FUNCTIONS
7.3 Tough drive function
The following shows the function block diagram of the vibration tough drive function.
This function compares the detected machine resonance frequency with the setting values of [Pr. PB13 Machine resonance
suppression filter 1] and [Pr. PB15 Machine resonance suppression filter 2], and resets the setting value closer to the detected
machine resonance frequency.
Filter
Setting parameter
Precaution
Parameter that is reset
with vibration tough
drive function
Machine resonance
suppression filter 1
PB01/PB13/PB14
The filter can be set automatically with "Filter tuning mode
selection" in [Pr. PB01].
PB13
Machine resonance
suppression filter 2
PB15/PB16
PB15
Machine resonance
suppression filter 3
PB46/PB47
Machine resonance
suppression filter 4
PB48/PB49
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.
Machine resonance
suppression filter 5
PB50/PB51
Enabling the robust filter disables the machine resonance
suppression filter 5.
The robust filter is disabled for the initial setting.
Command
pulse train
Command
filter
Encoder
Servo motor
PWM
M
Load
+
-
Machine
resonance
suppression
filter 1
[Pr. PB13]
[Pr. PB15]
[Pr. PB46]
Machine
resonance
suppression
filter 2
Machine
resonance
suppression
filter 3
Machine
resonance
suppression
filter 4
Machine
resonance
suppression
filter 5
Shaft
resonance
suppression
filter
Robust filter
[Pr. PB48]
[Pr. PB50]
[Pr. PB17]
[Pr. PB49]
[Pr. PE41]
Updates the parameter
whose setting is the
closest to the machine
resonance frequency.
Vibration tough drive
Torque
ALM
(Malfunction)
WNG
(Warning)
MTTR
(During tough drive)
ON
OFF
[Pr. PF23 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.
ON
OFF
ON
OFF
5 s
Summary of Contents for MELSERVO-J4 series
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