Schneider PLC TM241C40R

06/27/2025

VFD Basics - How VFD Controls the Motor Running?

When the main circuit of the VFD is connected with the power line, in order to control the motor, it is necessary to connect the surrounding control circuit to the relevant terminals

09/03/2020

Choose a safe gas tank in just 5 steps!

Air storage tank is a kind of industrial equipment commonly used in industry to purify and shrink air, and it is also one of the special safety equipment strictly regulated by the country.

09/10/2020

The high-voltage inverter market has huge potential, expecting technological breakthroughs

The high-voltage inverter has a significant energy saving effect. Without changing the host equipment, only changing the speed can achieve an average power saving effect of 30%. Among them, the average energy saving rate of petroleum system is 38%, petrochemical system 46%, metallurgical system 42%, urban water supply and drainage system 45%, chemical industry System 24%.

06/18/2020

Analysis of the circuit diagram of the two compressors' phase failure protection

Analysis of the circuit diagram of the two compressors' phase failure <br><br> Air compressor phase failure <br><br> circuit In the figure, KP is the electrical contact pressure gauge Ai is the CD4073 AND gate circuit, Az is the ~D4025 NOR gate circuit, and A3 is the CD4071 OR gate circuit. The 7806 three-terminal fixed integrated voltage regulator is used as the control circuit for the DC working power supply. When the AC power fails, the relay KA is released and the motor stops. Circuit diagram of compressor phase failure <br><br><img src="{{media url=&quot;wysiwyg/Analysis_of_the_circuit_diagram_of_the_two_compressors_phase_failure_protection.jpg&quot;}}" alt="" />

06/14/2020

What to do if the air conditioning refrigeration effect is not good

The summer is hot, and air conditioning is an indispensable home appliance product. However, most owners will encounter problems with the poor cooling effect of the air conditioner in the process of using the air conditioner. What is the problem with the 器2䀀
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06/29/2020

Compression ratio of American Copeland compressor

08/02/2020

How to determine the refrigerant leakage of the air conditioning system Only need these six steps

Shut down and unplug the air conditioner (to prevent danger during the inspection process), and connect a pressure gauge to the large valve. Observe the static pressure.

08/17/2020

How to clean the return air duct of central air conditioning

Today, the editor of okmarts.com mainly introduces some of the most commonly used and basic cleaning procedures for central air-conditioning. I hope it will be useful to everyone!

08/06/2020

Several effective methods to control energy consumption of chillers

Every spring and summer, the temperature starts to rise, and the number and time of use of industrial water chillers will be more than in autumn and winter.

11/17/2021

Why Commercial Ice Maker not Work and Solutions

In modern city life, it's easy to see ice makers in restaurants, supermarkets, bars, cafes and other places, and there are car ice makers too.