HONTKO Encoder HSK-40-2-C

07/07/2020

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

06/14/2020

Haikou exploded, the central air conditioner was back

Haikou exploded, the central air conditioner was back, was it wrong Since 2020, the safety of the use of central air conditioning has been widely concerned. From the clustered infections in closed places during the epidemic to the explosion accident in H器2䀀
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07/16/2020

Common failures and maintenance of overload protectors for air-conditioning compressors

Overload protector of air conditioner compressor Installed between the active and passive sides of the power transmission, when an overload fault occurs (torque exceeds the set value), the torque limiter will separate, thereby effectively protecting the driving machinery and the load. Just like its name, the fundamental function of the overload protector is to protect the air-conditioning compressor.

07/14/2020

I realized that in winter, the refrigerator should be adjusted correctly, and the power saving and cooling are correct.

I realized that in winter, the refrigerator should be adjusted correctly, and the power saving and cooling are correct. I believe that there should be a refrigerator in the home of the friends, the role of the refrigerator is to freeze and refrigerate the food in the home.

08/21/2020

What are the hazards caused by the air entering the condenser of the freezer

The handling of water-cooled chiller failures must strictly follow scientific procedures. The chiller operator should not act without authorization and disassemble the water-cooled chiller at will when the situation is unclear,

07/26/2020

This is a common failure of refrigeration compressors!

The excessively high suction temperature is mainly caused by the increase of suction superheat. Note that high suction temperature does not mean high suction pressure, because suction is superheated steam.

06/14/2020

What is the energy efficiency ratio of air conditioning

What is the energy efficiency ratio of air conditioning What does the air-conditioning energy efficiency ratio mean? How to calculate the air-conditioning energy efficiency ratio?

07/07/2020

How much do you know about the diameter of the refrigeration system and the return of the upstream pipe

How much do you know about the diameter of the refrigeration system and the return of the upstream pipe When the refrigeration equipment is under low load, if it is found that the oil return cannot be normal, it can be calculated according to the minimum return oil flow rate.

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).

03/13/2021

Working mode of servo driver

The working modes of servo driver are: open loop mode, voltage mode, current mode (torque mode), IR compensation mode, Hall speed mode, encoder speed mode, tachometer mode, and analog position loop mode (ANP mode). (not all of the above modes exist in all models of drives)