Newport MM4006, Руководство пользователя

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MM4006 V V D e f i n e the vector velocity on trajectory
(trajectory velocity)
Usage • IMM • PGM
■
M I P
Syntax V V n n or VV?
Parameters
Description n n (double) — Desired trajectory velocity.
Range n n > 0 to Max Trajectory Velocity (MTV).
Units n n U n i t s / s e c .
Defaults n n M i s s i n g : M T V.
Out of range: E r r o r C.
Description T h i s command defines the vector velocity on trajectory that the controller
uses to start and stop execution of the trajectory. In association with the
trajectory acceleration this will define the necessary time to reach the tra-
jectory velocity.
NOTE
The controller calculates automatically .MTV for the trajectory to execute
(set of trajectory elements entered before this command) one time this
command is entered and limits the trajectory velocity to MTV if the para-
meter entered is greater than MTV. It is then advised to read MTV just
before this command with help of the command XV1 and to read
assigned trajectory velocity after this command with help of the com-
mand VV? or XV.
In fact, MTV is defined as the minimum value of minimum value of maximum
allowed X assigned axis and Y assigned axis velocities and of minimum
value of all trajectory arc elements maximum allowed contouring velocities,
that are calculated as square of product of maximum allowed trajectory
acceleration (MTA) with arc element contouring radius (V(MTA * Radius)).
Returns I f the sign "?" takes place of the nn value, this command reports the actual
trajectory velocity value.
Errors C — Parameter out of limits.
S — Communication time-out.
Rel. Commands V S — D e f i n e the vector acceleration on trajectory (trajectory acceleration).
XV — T e l l the vector velocity on trajectory (trajectory velocity).
Example X V I R e a d MTV.
XV20 C o n t r o l l e r tells MTV.
W 5 D e f i n e 5 units/sec as trajectory velocity.
XV R e a d trajectory velocity.
XV5.0 C o n t r o l l e r tells trajectory velocity.
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Nevvport. 3 . 1 6 5
EDF10181En1020 — 03/03