(1) Depending on the application and the specific use: Select the type of button according to the use occasion, such as open type, protective type, waterproof type, anti-corrosion type, etc.; according to the use, choose the appropriate form, such as the handle, rotary, key Type, emergency, lighted, etc. For example, the general button on the panel of the console cabinet can be opened first; if it needs to display the working state, it will be marked with an indicator light; in a very important place, it is necessary to use a key type to prevent accidental operation by unrelated personnel; Use anti-corrosion.
(2) Select the color of the button and indicator according to the working status, the instructions and the working conditions: the green color for "start" or "power on" and the red for "stop". In addition, the voltage of the indicator light (bulb) is divided into 6.3V, 12V, 24V and so on.
(3) According to the needs of the control loop, determine the number of different buttons: such as single button, double button, three button, multi button. For example, when you need "positive", "reverse", or "stop" three kinds of controls, you can use three buttons and install them in the same button box; when you want to "start" and "stop" control, you can assemble them with two buttons. Inside the same button box.
