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MNEMONIC FUNCTION TYPE
V Read Only Velocity Variable Motion Variable
DESCRIPTION
The velocity variable is used in conjunction with the PR (print) instruction to read the current velocity of the axis in counts per
second. This variable can also be used with the BR and CL instructions to set a condition based upon a velocity. This variable can
also be used in conjunction with the user registers to compute another velocity.
USAGE UNITS
PR V Counts per Second
BR <addr>, V=<counts/sec>
CL <addr>, V=<counts/sec>
RELATED COMMANDS: VI, VM
MNEMONIC FUNCTION TYPE
VA Create User Variable Name Instruction
DESCRIPTION
The VA instruction allows the user to assign a 2 character name to a user defined variable.
The restrictions for this command are:
1] A variable cannot be named after a MDrive Motion Control Instruction, Variable or Flag.
2] The first character must be alpha, the second character may be alpha-numeric.
3] A variable is limited to two characters.
USAGE
VA <char><char>=<value>
EXAMPLE:
VA P2 ‘create user var P2
P2=20000 ‘set P2 to 20000
RELATED COMMANDS: UV
MNEMONIC FUNCTION TYPE
VI Initial Velocity Variable Motion Variable
DESCRIPTION
Initial velocity for all motion commands. The factory default value is 1000 clock pulses per second.
The initial velocity for a stepper should be set to avoid the low speed resonance frequency and must be set lower than the pull in
torque of the motor. It must also be set to a vaulue lower than VM (Max. Velocity).
USAGE UNITS RANGE DEFAULT
VI=<velocity> Counts per sec 1 to 5000000 1000
EXAMPLE:
VI=2000 ‘set initial velocity to 2000 counts per second
RELATED COMMANDS: VM