How it works
Add a certain voltage at both ends of the coil, a certain current will flow through the coil, resulting in an electromagnetic effect, and the armature will overcome the tensile force of the return spring under the action of electromagnetic force attraction and attract to the core, thereby driving the moving contact of the armature to engage with the static contact (normally open contact).
When the coil is de-energized, the electromagnetic suction disappears, and the armature returns to its original position under the reaction force of the spring, releasing the moving contact and the original static contact (normally closed contact). In this way, it is engaged and released, so as to achieve the purpose of conduction and cutting in the circuit.
For the "normally open, normally closed" contacts of relays, they can be distinguished as follows: the static contacts that are in the open state when the relay coil is not energized are called "normally open contacts"; Static contacts that are turned on are called "normally closed contacts".
use
1. Expand the control range: For example, when the control signal of the multi-contact relay reaches a certain value, it can be changed, interrupted and connected to multiple circuits at the same time according to the different forms of the contact group.
2. Amplification: For example, sensitive relays, intermediate relays, etc., can control a very large power circuit with a very small amount of control.
3. Integrated signal: For example, when a plurality of control signals are input into a multi-winding relay in the specified form, the predetermined control effect is achieved after comparative synthesis.
4. Automatic, remote control, monitoring: For example, the relay on the automatic device, together with other electrical appliances, can form a program control circuit, so as to achieve automatic operation.
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More on that
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Common causes and solutions of PLC failures in Omron operation
Fault phenomenon: The analog module CJ1W-DA041 outputs 4-20mA current for 4 channels, of which channels 2 and 3 are normal, and channels 1 and 4 have no current output.
Analyzing the circuit, the 4 current outputs use 4 manifold LT1490 for D/A conversion, and first measure the manifold LT on 1 and 4 channels.
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Introduction to Omron electronic thermometer and how to use it
Using an Omron electronic thermometer, which is displayed digitally and compared with a conventional thermometer, there is a small chance of error, generally no more than 0.1 degrees, so there is little need to worry about inaccuracies. Every time you use it, it's also very simple, just press the power switch ...
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Omron Relays – The role of signal relays
1) Expand the scope of control. For example, when the control signal of a multi-contact relay reaches a certain value, it can be changed, interrupted, and connected to multiple circuits at the same time according to the different forms of contact groups.
2) Zoom in. For example, sensitive relays, intermediate relays, etc., with a very small control ...
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Address allocation of Omron PLC - CPU unit address allocation
1. CPU unit address allocation
Type X and XA CPUs
The X and XA CPU units come with 40 I/O, of which 24 are inputs and 16 are outputs, and the input part of the CIO area occupies 0 - 1 channel, with a total of 24 input bits:
12 of these bits are 0 bits of channel 00—— ...
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Application of Omron automatic gluing robot
Process introduction
Since the implementation of the [plastic restriction order] in 2007, plastic packaging has been greatly restricted. Subsequently, all kinds of metal cans represented by beer cans, tea cans, and oil cans are increasing, and metal packaging has begun to usher in a period of rapid development.
Metal cans are divided into ...
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How to detect the type of Omron relay
1. Measuring contact resistor
Use the resistor file of the universal meter to measure the normally closed contact and the moving point resistor, and its resistance should be 0; The resistance of the normally open contact and the moving point is infinite. This makes it possible to distinguish which is a normally closed contact and which is normally open.
2. Test the coil resistance
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What are some common troubleshooting methods for Omron?
(1) Failure of peripheral circuit components
This kind of failure is more common in PLC maintenance, and it is generally a frequent occurrence in failures after a certain period of work. In the PLC control loop, if there is a component damage fault, the PLC control system will immediately and automatically stop working. The input circuit is P...
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The application of Omron in laser welding of the top cover of automotive power battery
Process introduction
The assembly process of automobile power battery and cell section is divided into:
1.Hot pressing 2.Tab welding 3.Adapter welding 4.Coating 5.Into the shell 6.Top cover welding
Among them, top cover welding is the last process, which uses the laser welding process to combine the top cover with ...
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The Omron mobile robot can move a payload of up to 250 kg
Omron's LD-250 can be used to transport large automotive parts, such as gearboxes and large quantities of packaging materials, which are normally handled by human workers using trolleys.
The robot is made of a sturdy metal enclosure that can withstand unexpected external shocks and requirements for more ...
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How to choose Omron relays?
1. Select the rated working current of the electromagnetic relay coil: For the DC electromagnetic relay driven by transistors or integrated circuits, the rated working current of the coil (generally 2 times the suction current) should be within the output current range of the driving circuit.
2. Select electromagnetic relay contact ...
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Nine main characteristics of Omron relays
1. Extra-small and lightweight
Omron relay has developed and manufactured a very small standard, leading the relay industry at home and abroad, and occupying a dominant position in the market.
2. Low driving current
The driving current is in the range of 6.5-16 mA, which achieves a low current, and in order to protect the environment, it is eco-efficient.
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What are the advantages of Omron relays?
1. The relay is small and still weldable.
The relays in SSOP/USOP packages feature directly exposed terminals for excellent visibility and easy installation.
2. Ultra-small and lightweight: In addition to SSOP and USOP, ultra-small packages contribute to the miniaturization of devices.
...
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What are the common faults of Omron relays?
Fault 1:
Do not exceed the rated voltage of the load current during the use of the OMRON relay, because when the applied rated voltage is too large, it may cause a local short circuit between the cores of the OMRON relay coil and poor operation of the AC operation relay. And there are ...
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Omron alarm code analysis
Warning display
Over Torque Detection (OL2)
FUNCTION code error (CE01)
Registers NO. Error (CE02)
Data Error (CE03)
Slave Execution Error (CE04)
Slave Execution (CE06)
Communication Timeout (CE10)
Display...
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Omron switch - 9 tests and methods for switching power supplies
1. Repeated short-circuit test
◆ Test instructions
The output of the module is short-circuited in various input and output states, the module should be able to achieve protection or retraction, repeated short-circuits, and after troubleshooting, the module should be able to automatically resume normal operation.
◆ Test Method
a ...
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Parameter settings for Omron inverters
1. First of all, set the parameters of Omron inverter according to the rated voltage, rated frequency, rated power and other parameters of the motor;
2. Secondly, according to the actual operation of the motor, adjust the parameters of the Omron inverter to achieve the best operation effect;
3. Finally, ...
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How to connect Omron plc IP address?
1. The IP address of the computer is automatically obtained.
2. The computer is directly connected to the PLC network port.
3. Open the DirectEthernetUtility software. Software Setup Start - > All Programs - > OMRON - >Communications Middleware Utilities - > DirectE...
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Omron set off a digital low-carbon boom at the expo
From November 5th to 10th, the 5th China International Import Expo was held in Shanghai, where multinational companies from all over the world gathered to participate in the annual international economic and trade event.
As a global expert in digital transformation in the field of automation, Omron has entered the ...
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What are the characteristics of Omron 3G3JZ series inverter?
1. Standard configuration with RS485 interface, Modbus bus communication function;
2. At 3Hz, it can provide more than 150% torque output and start quickly;
3. The carrier frequency of 2-15KHz is adjustable, which can realize silent drive;
4. Equipped with simple energy-saving function;
5. Controlled ...
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What's going on if Omron PLC can't be installed?
1. Open the CX-programmer software;
2. Use rs232 and other communication lines to connect to PLC;
3. Open "PLC" -> "Auto Online"; - >> "Direct Online";
4. Select "Connection Type" and click "Connection".
5. In the pop-up window, click ...
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