Yaskawa MP2000 Series: User's Manual for Motion Programming - Manual (Page 139)

8 Command Reference
8.1.6 Set Velocity (VEL)
8-32
(b) Override
Motion setting parameter OW 18 (Override) can be used to specify a percentage of positioning speed
specified by a VEL command to be output (output ratio).
The default setting of motion setting parameter OW
18 is 10000 (100.00%).
Override
Override often means “to invalidate.” In this manual, however, it should be taken to mean “changing” the set value.
Motion setting parameter OW 18 (Override) can be changed while an axis is moving.
Fig. 8.15 OW 18 (Override) and Positioning Related Command
• The SVR module does not have motion setting parameter OW 18 (Override).
• For the Set Time Positioning command (MVT), the positioning speed used for override is not the VEL command refer-
ence value. The positioning speed changed by executing the Set Time Positioning command (MVT) is used for over-
ride.
• When using an override for the Set Time Positioning command (MVT), the positioning will not complete within the
specified time.
The MP2000 system calculates the positioning speed at execution of the Set Time Positioning command (MVT) assum-
ing the override to be 100%.
• The speed unit of the rated speed specified by the motion fixed parameter is different from the speed unit used for VEL
command coded in a motion program.
Refer to (c) Motor Speed Specifications to calculate the rated speed according to the speed unit for the Set Velocity
command (VEL).
Speed Speed Unit
Motion fixed parameter 34: Rated
motor speed
rotations/min
Set Velocity command (VEL) reference units/s, 10
n
reference units/min, 0.01%, 0.0001%
Positioning speed
VEL command
reference value
VEL command
reference value
˜
Override
0 to 327.67%
= Positioning speed
Override (OW 18)
TERMS
Time (t)
VEL command
reference value
Speed (V)
100% of VEL
Time (t)
100.00%
150% of VEL
50% of VEL
Override
OW 18
One positioning related command block
50.00%
150.00%
INFO