![]() When sizing a servo motor, two torque values are taken into consideration-maximum torque and root mean square (RMS) torque. The torque-speed curve shows the motor’s continuous and intermittent (limited) operating zones. Regardless, the continuous and intermittent zones are the ranges of torque and speed that can be achieved for specific amounts of time without the risk of overheating the motor. Because the servo amplifier can limit the motor’s peak speed and torque, it’s important to note that torque-speed curves are often based on specific motor and amplifier combinations. One tool for servo motor selection is the torque-speed curve, which depicts the motor’s continuous and intermittent operating zones. Internal thermal sensors can protect the motor during operation, but proper sizing and selection are the first step to ensuring that the motor is not at risk of thermal overload within the parameters of the application. Servo motor performance is highly influenced by the motor’s ability to dissipate heat and avoid thermal overload, which can damage internal components and even demagnetize the magnets.
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