YASKAWA SVC - Page 103

3.4 Motion Parameter Details
3.4.2 Setting Parameter Details
3-50
Setting Precautions
• After all position reference pulses have been distributed for position control, bit 1 (Positioning
Completed) in the IW0C monitor parameter changes to 1 (Within positioning completed
range) when the Positioning Completed signal from the slave SERVOPACK turns ON (i.e.,
when bit E in the IL28 monitor parameter changes to 1).
• Set a value that is appropriate for the machine specifications in the system. If the value is too
small, a long time will be required for positioning to be completed.
Related Parameters
• Fixed parameter No. 4 (Reference Unit Selection)
• Fixed parameter No. 5 (Number of Digits Below Decimal Point)
• Fixed parameter No. 6 (Travel Distance per Machine Rotation)
• Fixed parameter No. 8 (Servomotor Gear Ratio Term)
• Fixed parameter No. 9 (Machine Gear Ratio Term)
• OW2E setting parameter (Position Loop Gain)
• IW0C monitor parameter, bit 0 (Distribution Completed (DEN))
• IW0C monitor parameter, bit 1 (Positioning Completed (POSCOMP))
NEAR Signal Output Width
 NEAR Signal Output Width
Bit 3 in the IW0C monitor parameter (Near Position) changes to 1 (Within near position
range) when the absolute value of the difference between the reference position and the feed-
back position is within the width that is set for this parameter.
Register
Address
Name
Setting
Range
Setting Unit Default Control mode
OL1E Positioning Completion Width 0 to 65,535
Reference
units
100
Register
Address
Name
Setting
Range
Setting Unit Default Control mode
OL20 NEAR Signal Output Width 0 to 65,535
Reference
units
0
Position
Phase
Speed
Position Deviation
(IL1A)
Positioning
Completed Signal
(IW0C, bit 1)
Positioning Completion Width (OL1E)
Reference
Motor speed
Time
Time
Distribution completed
SVC
Position
Phase
Speed
Time
Distribution completed
Time
Position deviation
NEAR Signal
Output Width = 0
NEAR Signal
Output Width ≠ 0
NEAR Signal Output Width