1. As a digital actuator, the stepper motor is widely used in motion control systems. Many users often wonder why their motors get hot during operation and whether this is normal. In fact, it's quite common for stepper motors to generate heat, but understanding what kind of heat is acceptable and how to reduce it can help ensure long-term performance.
2. The acceptable temperature range for a stepper motor depends on its internal insulation. If the internal temperature exceeds 130°C, the insulation may be damaged. Therefore, as long as the surface temperature stays below 90°C, the motor should remain safe. A typical normal operating temperature is between 70°C and 80°C. To check the temperature, you can use an infrared thermometer or estimate by touch: if you can hold your hand on it for more than 1-2 seconds, it’s around 60°C; if it’s just barely bearable, it’s about 70-80°C; and if water droplets evaporate quickly, it’s over 90°C.
3. It's important to note that while some heat is expected, excessive heat could indicate issues such as overloading, incorrect current settings, or poor ventilation. Ensuring proper cooling and using the correct driver settings can significantly reduce unnecessary heat generation. Additionally, regular maintenance and monitoring can help prevent long-term damage and improve the motor's efficiency and lifespan.
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