How to select a suitable rotary encoder ！

How to select a suitable rotary encoder

Knowing how to select a suitable rotary encoder is really important for the encoder application in the future. It will avoid many problem. Here Changchun Rongde Optics Co.,Ltd (Roundss Encoder) is going to introduce the methords to choose the best rotary encoder solution of your machine application.

For connecting rotary encoders shaft with user's output shaft, elastic soft connection is reccomended in stead of rigid connection, which could avoid runout moving of user shaft, decrease the damage to the encoder shaft and the code disc. When mouting the shaft of rotary encoder, the action should be gentle. Do not use a hammer and beat the encoder shaft with peressure. it could avoid damage to the shaft and encoder. Please note that the permissible axle load when installation shall not exceed its limit load.

There are three aspects to consider when choosing a rotary encoder. The first is that rotary encoder body is able to meet their processing requirements and how is the quality of the rotary encoder. The second is to choose a competiable rotary encoder system. There are many types of rotary encoder system, choose the right system is the key to buy a rotary encoder. Finally, the drive unit is the key to control the rotation of the encoder. the drive unit can achieve different machining accuracy. the choice of the drive unit, according to the precision machining of workpieces asked to select a suitable driving unit.

The rotary encoder could be also choosed from the following aspects:

1, incremental rotary encoder or absolute rotary encoder

the allowable costs should be considered in order to select the appropriate signal. And you still need to think about the origin of the possibility of power-on reset, control speed, immunity to interference and so on.

2. Select the encoder resolution

Taking into account the requirements of the assembly of mechanical devices and the cost of the machine,basic accuracy needs to be selected among the most appropriate model. Generally select 1/2-1/4 resolution of mechanical precision integrated precision.

3 Dimensions

To consider installation space, the shaft type is selected by the state  (hollow shaft or solid shaft type)

4, the allowed load of encoder shaft

The different installation methods different axial load state, and mechanical lifetime need to be taked into account.

5, the maximum permissible speed

It depends on the machine's maximum speed when working.

About the rotary encoder selection, you can choose rotary encoder according to the above aspents. Changchun Rongde Optics Co.,Ltd manufactures a variety of encoders. Customers can visit the company's Web site www.roundssencoder.com for detailed information.

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