HITACHI VFD Frequency Converter L100-007MFU2

07/07/2020

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

06/23/2020

Advantages and disadvantages of Hitachi central air conditioning

At present, the central air-conditioning of the refrigerant system is still the best done by Japanese brands. When it comes to Japanese central air-conditioning, one has to say that Hitachi, one of the Japanese air-conditioning BOSS, is a well-known international central air-conditioning brand. Most air conditioners now use scroll compressors as the core of power, and the world’s first scroll machine for air conditioning was manufactured by Hitachi in 1983.

06/13/2024

How to Select a Right Solenoid Valve? Selection Guide for Beginners

The solenoid valve is an industrial electromagnetic device used to adjust the direction, flow, speed, etc. of the medium.

08/20/2020

Methods of handling sudden failures of precision air conditioners

1. Leakage treatment steps for precision air conditioning units 　　Leak handling operation precautions: Never destroy the vacuum artificially. If it is not certain that the unit has indeed leaked air into the unit, operation cannot be performed.

06/30/2020

Causes of compressor burnout

Causes of compressor burnout Common failures of compressors are mainly the following three: 1. Motor burned out; 2. Liquid shock; 3. Oil shortage caused by refrigeration oil. 　　 Today I will give you a detailed analysis of the cause of the motor burnout.

01/13/2025

Ultra3000 Servo Drive Failure Repair

We have listed the common faults and repair methods of Ultra3000 servo drives, if you need to replace the equipment, we provide <a href="https://okmarts.com/servo-product/allen-bradley-serve-product.html" alt="Allen Bradley Rockwell Servo Drive, Ultra3000 Servo Drive Repair">Allen Bradley Rockwell Servo Drive</a>

09/07/2020

Air compressor alarm mechanism, how much do you know

As a mechanical equipment for manufacturing compressed air, air compressors are inevitable due to long-term operation. If the air compressor fails, it will affect the production of the user enterprise and cause losses.

12/08/2022

The Lubrication of the Linear Guideway

For the sake of better performance, smaller wear, and longer service life of the linear guideway, proper lubrication is entailed. This article will discuss the functions, characteristics of lubricant and tips for lubrication.

02/27/2021

Working principle of servo motor (how servo motor works)

The rotor inside the servo motor is a permanent magnet. The U / V / W three-phase electricity controlled by the driver forms an electromagnetic field. The rotor rotates under the effect of this magnetic field. At the same time, the encoder of the motor feeds back the signal to the driver. The driver adjusts the rotation angle of the rotor according to the comparison between the feedback value and the target value. The accuracy of servo motor depends on the accuracy of encoder (number of lines).

08/06/2020

Refrigeration equipment design the role of solenoid valves, thermal expansion valves, four-way valves, gate valves, and butterfly valves

Electromagnetic valve (Electromagnetic valve) is an industrial equipment controlled by electromagnetic. It is an automation basic component used to control fluid. It is an actuator and is not limited to hydraulic and pneumatic.