CNC Cutting Machine Practice Test 2025 – Complete Exam Preparation

In a CNC drive system, amplifier circuits play a crucial role by receiving and amplifying control signals. These control signals originate from the CNC controller and dictate the movement of the machine's axes. The amplifier translates these signals into a form that can drive the motors effectively, ensuring that the desired speed and torque are achieved for precise movements.

This amplification process is vital for various types of motors commonly used in CNC systems, such as stepper motors and servo motors. The strength of the control signals from the CNC controller may not be sufficient to drive the motors directly, so the amplifier boosts these signals to a level that can energize the motor coils, allowing for accurate positioning and control.

The other options illustrate roles that are not related to the amplifier circuits. Encoding movements is primarily the function of the CNC software. Regulating the main power supply and ensuring cooling systems operate independently involve other components of the CNC system and are not tasks performed by the amplifier circuits themselves.