Sanyo Denki Servo Drive RS3A05A2AL0

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="" />

08/08/2020

Selection and calculation of differential pressure regulating valve for central air-conditioning chilled water system

In order to ensure that the flow of the chiller in the central air-conditioning chilled water system is basically constant; the operating conditions of the chilled water pump are stable,

08/05/2020

Why does the refrigeration compressor produce overheat protection What matters should be paid attention to in the use of overload protector

The working principle and classification of the overload protector. The overload protector of the compressor for air conditioning generally adopts a snap-type bimetallic protector, which consists of a heating wire,

08/18/2020

How to wire the cold storage distribution box What problems should be paid attention to when wiring

Cold storage power distribution boxes play a very important role in the use of cold storage, and many people do not know much about cold storage power distribution boxes. Let's take a look at it with okmarts.com editor.

06/29/2020

Compression ratio of American Copeland compressor

07/27/2020

Selection and comparison of compressors

1. Piston compressor (the work of the piston compressor is the continuous change of the working volume formed by the cylinder, the valve and the reciprocating piston in the cylinder).　

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

06/14/2020

Reciprocating compressor

Reciprocating compressor refrigerators The last one we want to see is reciprocating compressors. As newer and more efficient technologies have replaced it, this type of refrigerator is becoming less and less common, at least in the field of commercial ref器2䀀
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01/13/2021

Judgement method of refrigerator solenoid valve is good or bad

(1)Use a multimeter to detect the resistance of the solenoid valve coil is about 2K or more (the resistance value is different according to the requirements of each refrigerator manufacturer); (2)Use a multimeter to detect the pulse voltage. You can adju器2䀀
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06/14/2020

Other forms of scroll compressors

Other forms of scroll compressors