2 stroke switch positive and negative control chartThe following is the working principle of a common 2-stroke switch positive and negative rotation control chart:
** 1. Basic Elements and Connection **
1. ** Contactor **
- There are two contactors, namely KM1 (for forward control) and KM2 (for reverse control). Whether the two contactors were energized or not determined the forward and reverse state of the motor.
- Contactors have normally open contacts and normally closed contacts. Normally open contacts were used for self-locking (to keep the contactors 'coil energized), and normally closed contacts were used for interlocked (to prevent two contactors from being energized at the same time and causing a short circuit).
2. ** Travel switch **
- There are two limit switches, set to SQ1 and SQ2.
- The travel switch was a switch that changed the contact state (normally open to closed, normally closed to open) according to the collision of mechanical moving parts.
- The normally closed contacts of SQ1 and SQ2 are connected in series in the forward control circuit (related to KM1) and the reverse control circuit (related to KM2), respectively.
3. ** Push button switch **
- The forward button (set as SSB2) and the reverse button (set as SSB3) are normally open contacts, and when pressed, the circuit is connected.
- The stop button (set to SSB1) is a normally closed contact. It is connected under normal conditions, and when pressed, it opens the circuit.
** 2. Work Flow **
1. ** Forward Rotation Start **
- Press the forward button, and the coil of the Contactor KM1 will be energized.
- The normally open contact of the KM1 was closed to achieve self-locking, so that the KM1 coil was continuously energized, and the motor began to rotate forward.
- When the moving part moved to a predetermined position, it collided with the travel switch SQ1, and the normally closed contact of SQ1 was opened, causing the coil of the contactors KM1 to lose power and the motor to stop rotating forward.
2. ** Reversal activated **
- Press reverse button SSB3, and the coil of the contactors KM2 will be energized.
- The normally open contact of the KM2 closed to achieve self-locking, and the motor began to reverse.
- When the moving part moves to another predetermined position, it will collide with the travel switch SQ2, and the normally closed contact of SQ2 will be broken, causing the coil of the contactors KM2 to lose power, and the motor will stop reversing.
This kind of control chart was often used in equipment that needed to automatically switch the forward and backward rotation of the motor according to the position of the object, such as some machine tools with a back and forth movement function.
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Did negative emotions have any value?Negative emotions may have value in certain situations, such as in the plot of a novel as a driving force for the development of the plot. In a novel, the emotional changes and development of negative emotions of the characters can help the readers understand the psychology and personality of the characters more deeply. At the same time, it can also enhance the tension and drama of the plot.
Negative emotions could also play an important role in the theme of a novel. For example, the theme of some novels involves the weaknesses and defects of human nature. Negative emotions can reveal these weaknesses and defects, allowing readers to have a deeper understanding of the complexity of human nature.
But the value of negative emotions does not always exist, especially in the general audience of novels. Some readers might prefer positive emotions and attitudes, believing that they bring more happiness and satisfaction. Therefore, when writing a novel, the author needs to take into account the readers 'preferences and emotional needs to balance the value of negative emotions and positive emotions in order to better attract and retain readers.
Are cuckolding stories only about negative emotions?No. While there are elements of negative emotions like jealousy in cuckolding stories, they are not solely about that. There can be positive aspects too, such as growth in a relationship. The couple might learn more about each other's needs and boundaries through such experiences, leading to a stronger bond in the long run.
3 answers
2024-11-03 01:44
What hormones do negative emotions secrete?Negative emotions could cause a hormone imbalance in the body, causing stress hormones such as Cortisol and Adrenaline to remain at high levels for a long time. In addition, negative emotions themselves may also be related to the abnormal secretion of normal hormones in the human body, but there was no clear indication of which specific hormones would be secreted by negative emotions. It was only known that negative emotions would affect hormone levels. For example, long-term negative emotions would cause abnormal hormone levels in the human body, which would lead to the decline of the human immune barrier and increase the probability of illness.
Please recommend some novels with strong negative emotions.I recommend "The Negative Hero" to you. This book is a fantasy sword and magic novel. It tells the story of a disqualified hero who meets the female protagonist in a negative situation and begins his adventure. If you like this genre, this book will satisfy your craving ~ I hope you like this fairy's recommendation.😗
How to deal with the negative emotions caused by reading novels?Aiyaya, looks like the OP needs to soothe his emotions. At this time, I recommend a cool novel," The Splendid Small Farmer Girl of Space ", to you. Watch how Shen Qingyan became rich with the help of space skills after transmigrating and reincarnating, and defeated countless of her relatives. Reading this novel can bring you a happy mood and positive energy, making your mood relax a little. I hope my recommendation can help you.
Please recommend a novel without negative emotions and depression.I recommend the following novels to you, all of which are not depressing:😉
- "Expert Medical Saint"-A poor country boy who used his strength to counterattack the city, cultivating medical skills and special abilities. Without the troubles of stallions and harem, he could read it safely and without worry.
- "I'm a Rich Second Generation!" A young rich young master in the process of starting a business without any depressing plot. He would be in a good mood after reading it.
- "New Chongzhen Record". Although the story was set in a crisis during the Ming Dynasty, this book was not a quick and enjoyable novel. It was suitable for readers who wanted to read historical novels but were worried about the depressing plot.
- "The Mad Young Masters of the City's Wealthy Families"--The struggle and growth of a young man in the process of starting a business. Without the troubles of stallions and harem, read it easily and happily.
- "The Beauty of the Zither"-A girl's zither cultivation journey, a sweet love story with the male protagonist. There are no depressing plots, but it is full of warmth. It is suitable for readers who want to read ancient romance but are afraid of depressing plots.
I hope you like this fairy's recommendation. Muah ~😗
Why do I have to experience negative emotions?Although negative emotions brought about painful experiences, they also brought some benefits. For example, the negative emotions that forced one to immerse oneself in pain would bring about a sense of security. From the perspective of the relationship between emotions, negative emotions and positive emotions are mutually dependent. For example, hate (a negative emotion) is opposite to love (a positive emotion), inferiority (negative) is equivalent to self-love (positive). It is the result of different perceptions of oneself and others. These negative emotions are part of the emotional system. Through experiencing negative emotions, one can better understand the meaning and value of positive emotions. In addition, negative emotions can be used as a reminder. If we can accept it and thank it, it will urge us to change and grow, allowing us to take care of things that have been neglected for a long time.