Siemens VFD Frequency Converter 6SE6440-2UD21-5AA1

03/08/2021

AC servo driver wiring precautions

For signal line and encoder input line, please use shielded wire. Wiring length: the length of signal line from NC to AC servo driver is less than 3m, and the length of input line from AC driver to encoder is less than 20m. The ground wire should be thick wire as far as possible. According to the third grounding standard (grounding resistance < 100 Ω), one point grounding method should be adopted to connect the ground wire. If the motor and the machine tool are insulated, the motor should be grounded.

08/27/2024

10 Common Reasons for AC Compressor Burnout, How Many Do You Know?

If the heat pump temperature is improperly set -- the cooling temperature is too low, or the heating temperature is too high

09/02/2020

The power frequency air compressor costs electricity, is there any rescue

Recently, when I was communicating with friends in the industry, I heard two cases. I think it is instructive for air compressor manufacturers or distributors who are "taking the quality" road, and they are worthy of our thoughts and learning.

08/17/2020

Too high or too low oil pressure of industrial chillers affects normal operation

When using industrial chillers, regular inspection and maintenance work is essential. In the absence of basic maintenance and regular inspections, many industrial chillers are prone to different failures.

07/22/2020

Method for identifying failure of hermetic refrigeration compressor

The resistance between running terminal (R), starting terminal (S), common terminal (C), RS is greater than the resistance between SC and RC. The resistance between RS is equal to the resistance between SC and the resistance between RC.

06/29/2020

Several causes of compressor burning

08/05/2020

The air source heat pump fan is attached to the air conditioner to assist in the cooling and heating function

In the process of accelerating the promotion and implementation of the "coal-to-electricity" project for heating in northern rural areas, as an upgraded form of ordinary heating and cooling air conditioners

09/07/2020

Comprehensive classification knowledge of air compressors

Classification of air compressors Air compressors are divided into: 　　1, speed type; 　　2, volumetric type; volumetric type is divided into rotary and reciprocating;

01/06/2021

Precautions when using the fresh air system

Precautions when using the fresh air system The fresh air system introduces outdoor air through the fan, and then deeply purifies the pollutants in the outdoor air by the fuselage filter and sends it to the room. After the clean air enters the room, th器2䀀
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07/18/2020

Process and cause of liquid shock in piston refrigeration compressor

Piston refrigeration compressor liquid hammer process and reasons for liquid hammer 1. Introduction The phenomenon that liquid refrigerant and/or lubricating oil is sucked into the compressor cylinder with the gas and damaged the suction valve plate