BRC300 Digital expansion module ABB
Brand ABB Color Standard Application Industrial height 165mm rated current 290mA
Protection Level IP45 Suitable for motor power 358KW Application Site Power Industry Material Code GJR2391500R1220 Power industry HIEE401782R0001 Part Number BRC300
Applicable pipe 2 Whether imported is weighing 4.78 kg can be sold nationwide
BRC300 Digital expansion module ABB
Proximity switch is also called proximity switch, also known as contactless stroke switch, in addition to complete stroke control and limit protection, or a non-contact detection device, in all kinds of switches, there is a close to its object has the ability to “sense” components – displacement sensor. Using the sensitive characteristics of the displacement sensor to the approaching object to control the switch on or off, this is the proximity switch.
Proximity switch function and application range
In addition to complete the stroke control and limit protection, the proximity switch is also a non-contact detection device, used for detecting the size of parts and speed measurement, etc., and can also be used for frequency conversion counters, frequency conversion pulse generators, liquid level control and automatic connection of processing programs. It has the advantages of reliable operation, low power consumption, high repositioning accuracy, high operating frequency and adaptability to harsh working environment.
At present, proximity switches have been widely used in aviation, aerospace technology and industrial production. In terms of security and anti-theft, such as data archives, accounting, finance, museums, vaults and other major places are usually equipped with anti-theft devices composed of various proximity switches. In measuring techniques, such as the measurement of length and position; In the control technology, such as displacement, speed, acceleration measurement and control, also use a large number of proximity switches.
In general industrial production sites, eddy current proximity switches and capacitive proximity switches are usually used. In the following, the editor of the industrial control network will interpret the difference and application range of these two switches for you.
Eddy current proximity switch detection principle
Eddy current proximity switches are sometimes called inductive proximity switches. It uses a conductive object to generate eddy currents inside the object when it approaches the proximity switch, which can generate an electromagnetic field. This eddy current reacts to the proximity switch, changes the internal circuit parameters of the switch, thereby identifying whether there is a conductive object moving closer, and then controls the switch on or off. The object that the proximity switch can detect must be an electrical conductor.
Eddy current proximity switch detects metal objects
When the object under test is a conductive object or an object that can be fixed on a metal object, the eddy current proximity switch is generally selected because of its high response frequency, good resistance to environmental interference, wide range of applications, and low price.
BRC300 Digital expansion module ABB
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