Yaskawa LEGEND-MC - Manual (Page 250)

240
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:
OPERAND USAGE:
_VT contains the vector time constant.
RELATED COMMANDS:
EXAMPLES:
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
"IT" Independent Time Constant for smoothing
independent moves
VT 0.8 Set vector time constant
VT ? Return vector time constant
0.8