What does T1 mode allow during robot operation?

T1 mode is designed to facilitate manual control of the robot while keeping the operation within a safe and manageable speed. This mode is particularly useful for programming and testing, as it allows operators to move the robot with reduced velocity. This slower speed grants the flexibility to make precise adjustments and safely program movements, ensuring that operators can interact with the system without the risk of rapid, uncontrolled movements that could lead to accidents or errors during setup.

In this context, the other options do not accurately describe T1 mode's functionality. While automatic execution of programs is a feature of other modes, T1 mode is specifically geared towards manual operation with reduced velocity. High-speed operations and full automation without restrictions align more closely with other operational modes that emphasize efficiency and speed rather than safety and precision.