The Velocity of Rotation tag VR= used for?

• A. The Velocity of Rotation tag VR Angle_Speed is used to define the rotational speed when that speed definition is more appropriate
• B. VR= Linear Speed
• C. VR= Joint acceleration
• D. VR= Time until rotation finishes

Answer: (A)

The Velocity of Rotation tag is about controlling how fast a rotating axis or component turns. When rotation is the motion being commanded, it’s natural to think in terms of angular velocity rather than linear distance. Using VR with Angle_Speed specifies the rotational speed directly—how many degrees (or radians) per second the rotation should achieve. This gives precise, predictable control for rotational moves, especially when the path is defined by angles or when the motion is inherently circular.

The other options don’t fit because VR is not about linear speed (that would be translational motion), nor about how quickly the speed itself changes (joint acceleration), nor about how long the rotation should take (duration).