Mitsubishi Electric Melservo-J3 Series MR-J3-B Instruction Manual page 128

5. PARAMETERS
No. Symbol
PB02 VRFT Vibration suppression control tuning mode (advanced vibration suppression control)
This parameter cannot be used in the speed control mode.
The vibration suppression is valid when the parameter No. PA08 (auto tuning) setting is
" 2" or "
invalid.
Select the setting method for vibration suppression control tuning. Setting this parameter
to " 1" (vibration suppression control tuning mode) automatically changes the
vibration suppression control vibration frequency (parameter No. PB19) and vibration
suppression control resonance frequency (parameter No. PB20) after positioning is
done the predetermined number of times.
Machine end
position
Setting
0
1
2
Note. Parameter No. PB19 and PB20 are fixed to the initial values.
When this parameter is set to "
done the predetermined number or times for the predetermined period of time, and the
setting changes to "
necessary, the setting changes to "
the initial values are set to the vibration suppression control vibration frequency and
vibration suppression control resonance frequency. However, this does not occur when
the servo off.
For manufacturer setting
PB03
Do not change this value by any means.
PB04 FFC Feed forward gain
This parameter cannot be used in the speed control mode.
Set the feed forward gain. When the setting is 100%, the droop pulses during operation
at constant speed are nearly zero. However, sudden acceleration/deceleration will
increase the overshoot. As a guideline, when the feed forward gain setting is 100%, set
1s or more as the acceleration/deceleration time constant up to the rated speed.
For manufacturer setting
PB05
Do not change this value by any means.
Name and Function
3". When PA08 is "
Droop pulse
Command
0 0 0
Vibration suppression control tuning mode
Vibration suppression
control tuning mode
Vibration suppression
control OFF
Vibration suppression
control tuning mode
(Advanced vibration
suppression control)
Manual mode
1", the tuning is completed after positioning is
2". When the vibration suppression control tuning is not
1", vibration suppression is always
Droop pulse
Automatic
Command
adjustment
Machine end
position
Automatically set
parameter
(Note)
Parameter No. PB19
Parameter No. PB20
0". When this parameter is set to "
5 - 11
Initial Setting
Unit
Value Range
0000h
0",
0
0 %
500
0
to
100