Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 375

7. PARAMETERS
No./ Setting
symbol/name digit
PE45 Set the lost motion compensation for when forward rotation (CCW) switches to
reverse rotation (CW) in increments of 0.01% assuming the rated torque as 100%.
LMCN
This parameter is available with servo amplifiers with software version B4 or later.
Lost motion
compensation
negative-side
compensation
value
selection Setting range: 0 to 30000
PE46 Set the time constant of the lost motion compensation filter in increments of 0.1 ms.
LMFLT If the time constant is "0", the torque is compensated with the value set in [Pr. PE44]
and [Pr. PE45]. If the time constant is other than "0", the torque is compensated with
Lost motion
the high-pass filter output value of the set time constant, and the lost motion
filter setting
compensation will continue.
This parameter is available with servo amplifiers with software version B4 or later.
Setting range: 0 to 30000
PE47 Set this when canceling unbalanced torque of vertical axis. Set this assuming the
rated torque of the servo motor as 100%. The torque offset does not need to be set for
TOF
a machine not generating unbalanced torque. The torque offset cannot be used for
Torque offset
linear servo motors and direct drive motors. Set 0.00%.
This parameter is available with servo amplifiers with software version B4 or later.
Setting range: -10000 to 10000
PE48 _ _ _ x Lost motion compensation selection
*LMOP 0: Disabled
Lost motion 1: Enabled
compensation
This parameter is available with servo amplifiers with software version B4 or later.
function
_ _ x _ Unit setting of lost motion compensation non-sensitive band
selection
0: 1 pulse unit
1: 1 kplulse unit
This parameter is available with servo amplifiers with software version B4 or later.
_ x _ _ For manufacturer setting
x _ _ _
PE49 Set the lost motion compensation timing in increments of 0.1 ms.
LMCD You can delay the timing to perform the lost motion compensation for the set time.
Lost motion This parameter is available with servo amplifiers with software version B4 or later.
compensation
timing
Setting range: 0 to 30000
PE50 Set the lost motion compensation non-sensitive band. When the fluctuation of the
droop pulse is the setting value or less, the speed will be 0. Setting can be changed in
LMCT
[Pr. PE48]. Set the parameter per encoder unit.
Lost motion
This parameter is available with servo amplifiers with software version B4 or later.
compensation
non-sensitive
band Setting range: 0 to 65535
Function
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Control mode
Initial
value
[unit]
0
[0.01%]
0
[0.1 ms]
0
[0.01%]
0h
0h
0h
0h
0
[0.1 ms]
0
[pulse]/
[kpulse]