What Are the Selection Criteria for Button Switches of Electric Bridge Cranes?

There are emergency stop button, start button, up, down, left, right, front and back buttons on the remote control of electric bridge crane. Pressing the abort button is very important. Its main function is to stop when there is a risk. For example, when the bridge crane is sliding, the sliding hook can be manipulated by pressing the emergency stop button.

We should also pay attention to the use of emergency stop buttons. The emergency stop button should be pressed immediately after the bridge crane is used. Because if the emergency stop button is not pressed, the bridge crane is powered on. If you don't touch the key, other accidents may occur. Long-term electrification will also affect the service life of electrical components. For example, the warning light will flash for a long time, and the overload limiter will remain in working condition. With the passage of time, the service life of these electrical components will be shortened.

The emergency stop button is similar to the power button and unlock function on a mobile phone. When we use mobile phones, we will turn on the power button and unlock, and then press the power button to turn off the power. If it is used for a long time, it will shorten the service life and consume a lot of power.

The power supply of the bridge crane is usually introduced by conductive equipment, such as section steel or tram line or winding machine. The circuit controlled by the crane operating button switch is a small current circuit.

The electromagnetic brake of the bridge crane will not be released immediately when the electric motor is energized from the suspension to the operation of the bridge crane. In fact, there may be a large current in the starting process of the bridge crane. As far as braking equipment is concerned, this process will affect the service life of its accessories. In the process of transformation, qualified crane operators must pay special attention to its safety to ensure the reliability and cohesion of the transformation process. In this way, through certain technical means, we can make our products operate more safely. If the operation process is reversed, that is, from running to stopping, the brake of the bridge crane will block the power source before the motor. At this time, regarding other products that may be electric, the current before the power failure will definitely increase. In order to effectively maintain every product, every operation must be carried out in accordance with strict regulations.

The crane button switch wiring diagram is a kind of master electrical appliance with simple structure and a very wide range of applications. In electrical automatic control circuits, it is used to manually send control signals to control contactors, relays, electromagnetic starters, etc.

The button switch can complete basic control such as start, stop, forward and reverse rotation, speed change and interlock. Usually each push button switch has two pairs of contacts. Each pair of contacts consists of a normally open contact and a normally closed contact.

When the button is pressed, the two pairs of contacts act at the same time, the normally closed contact is disconnected, and the normally open contact is closed. The colors of the crane button switch wiring diagram are red, green, black, yellow, blue, white, etc. For example, red means stop button, green means start button, etc.

The main parameters, type, mounting hole size, number of contacts and current capacity of the crane button switch wiring diagram are described in detail in the crane button switch wiring diagram manual.