ABB Controller Module 3BSC690087R1

03/11/2021

Common faults

The motor of servo driver is unstable, and the speed is fast and slow. The main reasons for this kind of fault are as follows: 1.The servo driver parameters are not adjusted properly, and the regulator does not reach the best working state.

08/21/2020

HVAC people collect these data, better than ten years of work experience!

HVAC people, we know that HVAC engineering includes many systems, the situation is complicated, and most of the pipes are hidden in tube wells, walls, ceilings, so the design process is very complicated, but don’t worry, we can step on the predecessors’ Go on your shoulders!

06/14/2020

The weather turns hot Avoid the risk of epidemic spread due to the use of air conditioning

The weather turns hot: Avoid the risk of epidemic spread due to the use of air conditioning According to the press conference of the 108th New Coronary Pneumonia Epidemic Prevention and Control in Beijing on May 18, 2020, 33 patients with concentrated feﰸ2䀀
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07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

08/20/2020

Talking about how to install large-scale cold storage refrigeration equipment

Cold storage is mainly used as constant temperature storage air-conditioning equipment for food, dairy products, meat, aquatic products, etc. Cold storage is actually a kind of low-temperature cold storage and also a type of refrigeration equipment.

06/14/2020

Scroll compressor

Scroll compressor

06/29/2020

Compressor oil change index

Compressor oil change index The general indicators for determining whether the refrigeration oil can continue to be used are: appearance, viscosity, acid value, moisture, pour point, flash point, compressive strength, copper corrosion, mechanical impurities and insolubles.

11/13/2021

Basics of Industrial Control System and the Use of PLC

The components of industrial control system (ICS) can be roughly divided into two categories according to their location: control center equipment and remote site equipment.

08/07/2020

What to do if the air conditioner drips Why not try this trick

Every household basically has air conditioners, but dripping of air conditioners is really a big problem. Many people don't understand why the air conditioners are dripping.

08/14/2020

Four Steps to Refrigeration Compressor Maintenance

Summer is coming, and the long-standing air conditioner will come in handy again! In recent years, consumers have become more and more experienced in the use of air conditioners,