Causes of the failure of the internal feedback encoder of the servo motor

In the application of servo motor, the most common problem is that the feedback encoder is damaged. In the diagnostic information of many equipment systems, there are often prompts about the "feedback error" of the servo motor, and a large part of the test report of the servo motor returned to the factory for repair often points to the feedback encoder. In many cases, there will even be expressions of so-called "application problems", which means "the user is responsible for non-product quality problems." What are the possible reasons for the failure and damage of the internal feedback encoder of the servo motor? Let's take a look at what are the reasons below?

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Causes of failure and damage to the internal feedback encoder of the servo motor:

1. Mechanical damage

The most common faults in servo feedback encoders are various mechanical damages, including hardware damage to the internal components of the encoder (code discs, shafts, bearings, etc.) due to mechanical vibration, collision, impact, wear and other factors.

2. Vibration

Excessive mechanical vibration is very likely to cause damage to the encoder code disc, shaft and bearing.

3. Impact

Like all electromechanical products, servo motors and feedback encoder products will also have rated shock acceleration limits. Excessive impact force may cause damage to the servo encoder code disc, shaft, bearing, integrated circuit board and chip, and even damage and scrap the entire feedback encoder.

4. Wear

This kind of mechanical damage is the wear of the servo feedback encoder shaft and bearing. Although it is not very common, it also requires some attention.

5. Electrical damage

In various servo feedback encoder failures, electrical damage often occurs.

6. Environmental impact

The environment mentioned here, of course, refers to the physical environment where the servo motor is located, including: humidity, temperature, dripping, oil, dust, corrosion... etc.

However, no matter what improvements and developments are made to the product, I still want to remind everyone not to forget to apply the servo motor in a reasonable manner in strict accordance with the installation and use requirements of the product.