Mitsubishi Electric MELDAS MDS-B-SVJ2 Series - Page 142

Chapter 5 Adjustment
5-34
No. Abbrev. Parameter name Explanation
Setting range
(Unit)
Set this when the protrusion (that occurs due to the non-sensitive band by
friction, torsion, backlash, etc) at quadrant change is too large.
This compensates the torque at quadrant change.
This is valid only when the lost motion compensation (SV027 (SSF1/lmc))
is selected.
Type 1: When SV027 (SSF1)/ bit9, 8 (lmc)=01
Set the compensation amount based on the motor torque before the
quadrant change.
The standard setting is “100”. Setting to “0” means the compensation
amount is zero.
Normally, use Type 2.
-1 to 200
(%)
Type 2: When SV027 (SSF1)/ bit9, 8 (lmc)=10
Set the compensation amount based on the stall (rated) current of the
motor.
The standard setting is double of the friction torque. Setting to “0”
means the compensation amount is zero.
-1 to 100
(Stall [rated]
current %)
SV016 LMC1
Lost motion
compensation 1
When you wish different compensation amount depending on the direction
When SV041 (LMC2) is “0”, compensate with the value of SV016
(LMC1) in both of the + and -directions.
If you wish to change the compensation amount depending on the
command direction, set this and SV041 (LMC2). (SV016: + direction,
SV041: - direction. However, the directions may be opposite
depending on other settings.)
When “-1” is set, the compensation won’t be performed in the direction
of the command.
15141312111098765 4 3 2 10
abs vdir mc dmk
bit Meaning when “0” is set Meaning when “1” is set
0dmk
Deceleration control stop (SVJ2
standard)
Dynamic brake stop
1
2
3 mc Contactor control output invalid Contactor control output valid
4
5
vdir
HA053N to HA33N motor
Detector installation position
standard (A, C)
HA053N to HA33N motor
Detector installation position 90
degrees (B, D)
6
SV017 SPEC*
Servo specification
selection
7 abs Incremental control Absolute position control
8
9
10
11
12
13
14
15
(Note) Set to “0” for bits with no particular description.
SV018 PIT* Ball screw pitch Set the ball screw pitch. Set to “360” for the rotary axis.
1 to 32767
(mm/rev)
Parameters with an asterisk * in the abbreviation, such as PC1*, are validated when the NC power is turned ON again.