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Essential details:A06B-6058-H012 FANUC A06B-60 SERVO AMPLIFIER 5RF1.32KW
This is a tricky question. Yes, the servo drive does provide a control element for the motor. Without motor drive, you will lose control. But, operating the motor as needed, are they controllers? Sometimes, but not always.
Let’s go back to the era of servo amplifiers. The motor does run from the power obtained from the amplifier. The amplifier does provide three-phase phase modulation for the brushless motor, which is essential for the correct operation of the motor. Most importantly, however, amplifiers do one thing: amplify. They receive command signals from an external source such as a dial, slide switch, or computer, and power the motor based on this. If you want to change the torque, speed or position of the motor, you must change the command signal. The controller is what transmits the command signal.
Nowadays, servo drives have become more advanced, but the line between drive and controller can be somewhat blurred. Some analog drivers have a potentiometer built into them, so if someone were to control the motor by manually adjusting the gain or offsetting the potentiometer (as we sometimes do when testing on IMC), that driver would technically act as a controller. That is, these processes are usually done during the adjustment process and are not used as control inputs for real applications.
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sunny He
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