Which statement correctly describes the role of the Active Coordinate System?

• A. It sets the robot base frame
• B. It determines how each of the eight axis keys operate and the motion type in Teach mode
• C. It modifies the pendant's speed setting
• D. It selects the active tool

Answer: (B)

The Active Coordinate System is about how your manual jog inputs are interpreted. It defines the frame of reference the controller uses when you press the axis keys on the Teach Pendant and it also determines the type of motion that Teach mode will issue (for example, moving in Cartesian space as a straight line versus moving by individual joints). Because of this, switching the Active Coordinate System changes what direction or axis your jog commands move in and whether those moves are linear or joint-based, which is exactly what you need for precise teaching in the right frame.

The other options describe different settings that aren’t what the Active Coordinate System controls: it doesn’t directly set the base frame, adjust the pendant’s speed, or pick the active tool. Those are separate aspects of setup and operation.