Yaskawa MP940 - Manual (Page 265)

6.3 SVA Parameter Details
6-25
6
18 Feed Forward
Gain Setting (Kf) OWC011 0 to 200 Reduces positioning time by applying feed for-
ward control.
• Setting range: 0 to 200 [%]
Reference position and actual position error
decrease with higher settings.
0
19 Position
Reference
Setting (XREF) OLC012 -2 31 to 2 31 -1 Set the position reference. The meaning of the set-
ting data depends on OBC001C: Position Refer-
ence Selection and OBC001E: Position Reference
Type.
Explanation
1. Using OLC012 as Position Reference for
Absolute Position Reference Method
• OBC001C = 0: Directly specified
• OBC001E = 0: Absolute position reference
2. Using OLC012 as Position Reference for Add
Difference Method
• OBC01C = 0: Directly specified
• OBC01E = 1: Add difference
3. Using OLC012 as Position Reference for Add
Difference Method
• OBC01C = 1: Indirectly specified
• OBC01E = 0: Absolute position reference
Note: Setting 1 causes setting parameter error.
Refer to 11.3.1 Prerequisites for Position Control.
0
No. Name
Register
Number
Bit Name Description Default
The machine may start to vibrate
if the setting is too high.