DMC-1400 Series Command Reference VT ● 217
VT FUNCTION: Vector Time Constant
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 in the range between 0.004 and 1.0, with a resolution of 1/256.
n = ? Returns the value of the vector time constant for the S coordinate plane.
USAGE:
While Moving Yes Default Value 1.0
In a Program Yes Default Format 1.4
Command Line Yes
Controller Usage ALL
OPERAND USAGE:
_VT contains the vector time constant.
RELATED COMMANDS:
IT Independent Time Constant for smoothing independent moves
EXAMPLES:
VT 0.8 Set vector time constant for the coordinate system
VT ? Return vector time constant for the coordinate system
0.8