Download LEGEND-MC User`s Manual

LEGEND-MC User’s Manual
VT (Vector Time Constant)
[Motion]
DESCRIPTION:
The VT command filters the acceleration and deceleration functions in vector moves of VM, LM type to
produce a smooth velocity profile. The resulting profile, known as Smoothing, has continuous acceleration
and results in reduced mechanical vibrations. VT sets the bandwidth of the filter, where 1 means no filtering
and 0.004 means maximum filtering. Note that the filtering results in longer motion time.
ARGUMENTS: VT n
where
n is an unsigned number with a resolution of 1/256.
USAGE:
While Moving
Yes
Minimum n Value
0.004
In a Program
Yes
Maximum n Value
1.000
Command Line
Yes
Default Value
1.0
Default Format
1.4
Distributed Control
No, Local
OPERAND USAGE:
_VT contains the vector time constant.
RELATED COMMANDS:
"IT"
Independent Time Constant for smoothing
independent moves
VT 0.8
Set vector time constant
VT ?
Return vector time constant
EXAMPLES:
0.8
240