Parker
Hannifin
•
ROTARY
(Set Rotary Axis Length)—sets a rotary axis length used
in a shortest-distance calculation. The resulting move is never
longer than half the rotary axis length.
•
TMOV
(Time Based Move)—sets the time (in seconds) in which
the move is completed. The controller calculates a new master
motion profile to complete the move in the specified time. The
new motion profile values for acceleration, deceleration, stop
ramps, and velocity are no greater than the user-specified
values.
•
VECDEF
(Define Automatic Vector)—controls how the
Coordinated Moves Profiler calculates the master move
vector. The
VECDEF
command defines the weight each axis
receives in the vector calculation. The default value is 1 for
every axis.
In some applications, it is not desirable to include an axis in the
motion profile calculation. Suppose there is an application with
coordinated motion for axes X, Y, and Z, and rotary axis A.
Setting the axis A value to zero removes it from the vector
calculation. Axis A makes its move within the defined motion
profile, but is not part of the calculation itself.
•
VECTOR
(Set Manual Vector)—sets an independent vector
value for an axis removed from the motion profile calculation
through the
VECDEF
command. Because the axis is no longer
part of the motion profile calculation, it has no master velocity
with which it can make independent moves. The
VECTOR
command provides that value so the axis can make
independent moves.
Feedback Control Commands
The feedback control commands affect the velocity profiles and
define the encoder feedback used by axes in the current program.
Values must be set for each axis.
•
MULT
(Set Encoder Multipliers)—sets the count direction and
the hardware multiplication for the encoder of a given axis.
This command affects tuning gains, directions, distances,
velocities, and accelerations.
Caution —
Damage to equipment and/or serious
injury to personnel may result if
MULT
is changed
to a value inappropriate to the application.
Carefully consider the effects throughout the
application before applying a new value, and
perform a test without the load or mechanics
attached.
Making Motion 59
Содержание ACR Series
Страница 1: ......
Страница 65: ...Parker Hannifin Making Motion 65...
Страница 89: ...Parker Hannifin Servo Loop Fundamentals 89 Figure 17 Following Error...