SIEMENS Module 7MH4950-2AA01

08/29/2020

Six reasons and solutions for oily exhaust of screw air compressors

Failure factors of screw engine exhaust with oil 　　 Among the failures of screw compressors, the faults with oil in the exhaust are the most common. The main factors that cause the faults with oil in the exhaust are:

06/28/2022

What is Piston Pump?

A piston pump is a type of positive displacement pump where the high-pressure seal reciprocates with the piston.Piston pumps can be used to move liquids or compress gases.

09/11/2022

Torque Motor: Structure, Features, Types, Application

Torque motor is a special motor with a large number of poles, which can run continuously without causing damage to the motor even when the motor is at low speed or even blocked.

08/13/2020

Several symptoms of fluorine deficiency in refrigerators in summer

In summer, the frequency of use of refrigerators is relatively high, and the intensity of use is relatively high, so fluorine deficiency is prone to occur. How to judge whether the ice water machine is lack of fluoride in summer?

05/21/2025

Have you figured out the "enthalpy" and "entropy" of the refrigeration system?

1. Enthalpy<br></br> It is a kind of energy, used to indicate the thermal state parameter of the state of the refrigerant, it represents the size of the total energy of the refrigerant; namely:

08/24/2020

Precautions for safe operation of chiller

Water chiller is a kind of cooling water equipment that can provide constant temperature, constant current and constant pressure. The working principle of the chiller is to inject a certain amount of water into the water tank in the machine,

08/21/2020

Common problems and solutions for ice making machines

1. Common problems and solutions of ice maker 　　 1. The compressor is working but not cooling. 　　 Reason: The refrigerant leaks or the two-way solenoid valve is damaged and it is not closed tightly.

06/29/2020

Several causes of compressor burning

03/03/2021

Control mode of servo motor

Torque control: the torque control mode is to set the external output torque of the motor shaft through the input of external analog quantity or the assignment of direct address. For example, if 10V corresponds to 5nm, when the external analog quantity is set to 5V, the output of the motor shaft is 2.5nm: if the load of the motor shaft is lower than 2.5nm, the motor will rotate forward, and when the external load is equal to 2.5nm

06/14/2020

There is a market for air-conditioning sterilization, and innovation is helping the market pick up

Since the beginning of this year, due to the impact of the new coronary pneumonia epidemic, the development of the air-conditioning industry has been relatively difficult. With the normalization of epidemic prevention and control, and the advent of the tr器2䀀
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