Which component is responsible for interpreting coded data and issuing axis movement commands?

Which component is responsible for interpreting coded data and issuing axis movement commands?

• A. Spindle
• B. Servo Drive
• C. Machine Control Unit
• D. Hydraulic Pump

Answer: (C)

The machine control unit acts as the brain of the CNC system. It reads the programmed instructions (like G-code), decodes them into precise motion plans, and generates the axis movement commands that tell each axis where to go, how fast, and when to move. In short, it interprets the coded data and issues the commands that drive the machine’s motion. The servo drives then execute those commands by moving the motors with feedback to maintain accuracy. The spindle handles tool rotation, and the hydraulic pump supplies fluid power for other systems, but neither interprets the program nor issues axis commands.

The machine control unit acts as the brain of the CNC system. It reads the programmed instructions (like G-code), decodes them into precise motion plans, and generates the axis movement commands that tell each axis where to go, how fast, and when to move. In short, it interprets the coded data and issues the commands that drive the machine’s motion. The servo drives then execute those commands by moving the motors with feedback to maintain accuracy. The spindle handles tool rotation, and the hydraulic pump supplies fluid power for other systems, but neither interprets the program nor issues axis commands.