Справочник Пользователя для Mitsubishi Electronics C64T

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2215 SV015 

FFC 

Acceleration 
rate feed 
forward gain 

When a relative error in the synchronous control is large, 
apply this parameter to the axis that is delaying.  The 
standard setting value is “0”.  For the SHG control, set to 
“100”. 
To adjust a relative error in acceleration/deceleration, 
increase the value by 50 to 100 at a time. 

0 to 999(%) 

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 %) 

2216 SV016 

LMC1 

Lost motion 
compensa- 
tion 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.