Galil DMC-1400 用户手册
94 ● FV
DMC-1400 Series Command Reference
FV
FUNCTION: Velocity Feedforward
DESCRIPTION:
The FV command sets the velocity feedforward coefficient, or returns the previously set
value. This coefficient generates an output bias signal in proportion to the commanded
velocity.
velocity.
Velocity feedforward bias = 1.22
⋅ 10-6 ⋅ FV ⋅ Velocity [in ct/s].
For example, if FV=10 and the velocity is 200,000 count/s, the velocity feedforward bias
equals 2.44 volts.
ARGUMENTS: FVn
where
n is an unsigned number in the range 0 to 8191 decimal
“?” returns the feedforward velocity for the specified axis.
USAGE:
While Moving
Yes
Default Value
0
In a Program
Yes
Default Format
3.0
Command Line
Yes
Can be Interrogated
Yes
Used as an Operand
Yes
Controller Usage ALL
OPERAND USAGE:
_FV contains the feedforward velocity.
RELATED COMMANDS:
Acceleration feedforward
EXAMPLES:
FV 10
Set feedforward coefficients to 10
JG 30000
This produces 0.366 volts.
FV ?
Return the value
010