Frequently fault and maintenance methods for control buttons

The control button is also called the button or the button switch is an electric appliance that is short-lived or disconnected. It does not directly control the peas of the main circuit, and “instruction” is issued in the control circuit to control the contactor, relayThe other electrical appliance is then controlled to control the main electrical circuit.The contact of the control button allows the current to pass by no more than 5A.

控制按钮的常见故障及检修方法

The control button is divided into stop button (normally closed button), start button (normally open button), start button (normally open button), start button (normally closed button), start button (normally closed button).There are many types of control buttons, commonly used with LA2, LA18, LA19 and LA20 and other series.The shape of the LA18, the LA19 series button is shown in Figure 6-14.

Figure 6-14 LA18, LA19 Series Buttons Shape Structure

Model of control buttons

The model of the common control button is as follows:

Main technical parameters for control buttons

控制按钮的常见故障及检修方法

The main technical parameters of the common control buttons are shown in Table 6-28.

Table 6-28 Main technical parameters of common control buttons

The common faults and maintenance methods of the control button are shown in Table 6-29.

控制按钮的常见故障及检修方法

Table 6-29 Common faults and maintenance methods for control buttons

Frequently fault and maintenance methods for control buttons

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