1. CPU abnormality: When the CPU abnormality alarms, check the devices connected to the internal bus of the CPU unit. The specific method is to replace the units that may cause failures in turn, find out the faulty units, and deal with them accordingly.
2. Memory abnormality: When the memory is abnormally alarmed, if it is a problem with the program memory, the fault will be reproduced after reprogramming. In this case, it may be that the interference of noise causes a change in the program, otherwise the memory should be replaced.
3. Abnormal input/output unit and abnormal expansion unit: When this kind of alarm occurs, the insertion status and cable connection status of the connector of the input/output unit and the expansion unit should be checked first, and the unit should be replaced after determining the fault.
4. Do not execute the program: the input check is identified by the input LED indicator, or the input monitor composed of a writer is checked. When the input LED is not lit, it can be preliminarily determined that the external input system is faulty, and then check with the multimeter.
If the output voltage is abnormal, it can be determined that the input unit is faulty. When the LED is on but the internal monitor is not displayed, it is considered to be a fault of the input unit, CPU unit, or expansion unit.
The program performs a check through a monitor check on the writer. When the contact status of the ladder diagram does not match the result, it is a program error (e.g., double use of internal relays, etc.), or a malfunction in the calculation part.
Output checks can be identified using the output LED indicator. If the calculation result is correct but the output LED indicates an error, it can be considered as a fault of the CPU unit or 1/0 interface unit. When the output LED is bright but there is no output, it can be determined that the output unit is faulty, or the external load system is faulty.
5. Some programs are not executed: the check method is the same as the previous item, but if the input time of the counter, step controller, etc. is too short, there will be no response failure, then the input time should be checked whether the input time is large enough, and the verification can be carried out according to the relationship between the input time < the * response time of the input unit + the operation scanning time multiplied by 2.
6. If the power supply is powered off for a short time, the program content will also disappear: in order to make the microprocessor start correctly, the PLC is equipped with an initial reset point circuit and a saving program circuit when the power supply is disconnected. When such a circuit fails, the program cannot be saved. Check the on/off of the available power supply.
7. PROM cannot operate: first check whether the PROM is inserted well, and then determine whether the chip needs to be replaced.
8. After the power supply is re-put into or reset, the action stops: this fault can be regarded as caused by noise interference or poor internal contact of the PLC. The cause of noise is generally caused by the reduction of the capacitance of the small capacitor in the circuit board or the poor performance of the components, and the cause of the poor contact can be checked by gently tapping the PLC body. Also check the plugged in status of the cables and connectors.
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Omron attended the 2022 P&G Electrical Automation Symposium
Recently, the 2022 P&G Electrical Automation Seminar held by Procter & Gamble (China) Co., Ltd. (hereinafter referred to as "P&G") was held in Guangzhou. Omron Automation (China) Co., Ltd. (hereinafter referred to as "Omron") was invited to attend the meeting and worked with the engineering, manufacturing, R&D and other departments of P&G factories on behalf of the ...
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What are the common fault phenomena of Omron relays?
One. Damage to glass insulators
Because the glass insulator of Omron relay is mainly made of metal prongs and glass sintering, it is easy to be damaged in the process of cleaning, overhaul, assembly, etc., such as bending of the pins, falling blocks, cracking, etc., resulting in Omron relays.
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Introduction to the characteristics of Omron 3G3RX series inverter
1. High starting torque of more than 200% at 0.3Hz, 0Hz to ensure 150% torque output;
2. Closed-loop vector has servo functions such as position control, origin reset, and electronic gear ratio;
3. Over-current and over-voltage suppression function;
4. The fast ...
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Omron MMC Health Convenience Store is once again stationed in Xi'an
On May 12, Omron Health Care (China) Co., Ltd. and Xi'an Yikang Pharmaceutical jointly built Xi'an Yikang Pharmaceutical Youyi West Road Store MMC Health Convenience Store (No. 105, 1st Floor, Life North District, Optical Machinery Institute, No. 121 Youyi West Road, Beilin District, Xi'an City) was officially opened and put into operation. The double ...
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【Omron industry case】The application of robots in the assembly line of automobile high-pressure oil pump
Equipment Overview
The high-pressure oil pump (abbreviation: HDP) is the main power source to drive the fuel pressure of the automobile engine.
The "high-pressure oil pump robot automatic assembly line" mainly realizes the intelligent supply of each component on the high-pressure oil pump and the automatic assembly of each component by the robot.
Work...
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Introduction to the application of Omron micro switches
About installation
When installing, disassembling, wiring, and maintaining and inspecting the Omron switching power switch, please try to carry out the switching power supply with the switching power supply OFF. Otherwise, there is a high risk of electric shock or burn damage.
About wiring work
Please do not switch on the power ...
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FAQs on Omron PLC
1.How to install the USB driver of CP1H?
The computer is connected to CP1H (powered on) through a USB cable, and the PC will automatically prompt to find the new hardware and prompt to install the driver.
2.The built-in USB port of CP1H can be used ...
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Omron PLC formatting method
1. Click [Controller] - [Mode] - [Programming Mode].
2. Click [Yes] in the pop-up window, and at this time, the PLC is in programming mode.
3. Click [Controller] - [Clear All Memory].
4. Click [OK], and the PLC memory is successfully ...
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Recommended selection of Omron's commonly used products
Omron's recommended product models today:
K8DS is a triple opposite missing sequential appliance
The inverse lacks sequential electrical appliances
Three-phase voltage + inverted phase lack sequential electrical appliances
Three-phase unbalanced + inverted lack of sequential electrical appliances
Three-phase undervoltage + inverted inverted missing sequential electric
Three-phase voltage + three-phase ...
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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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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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How are Omron switch relays wired?
One. Before connecting, determine the voltage required for the proximity switch, and in the case of a 3-wire system, determine whether it is PP type or P type. The proximity switch is divided into 2-wire, 3-wire and 4-wire systems.
Two. Wire proximity switches are connected in series when connected to relays. i.e. the relay is connected to the proximity switch to give it ...
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What are some common failures of Omron?
Common troubleshooting methods for Omron are as follows:
(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 ...
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The solution to the E4 fault code on the Omron electronic blood pressure monitor
The E4 fault code usually appears on the display of the blood pressure monitor, indicating that the blood pressure monitor is poorly connected to the cuff or that the cuff is falling off. This failure can lead to inaccurate measurement results or even inability to complete the measurement.
Solution(s):
1. Check that the cuff is worn correctly and whether it is loose...
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Selection rules for Omron relays
1. Coil voltage: also known as input voltage, used to control the contact on/off, with AC24V, DC24V, AC220V and other specifications
2. Contact capacity: the voltage and current of the load
3. Contact structure: 2C (double-pole double-throw), 4C (four-pole double-throw), 1A, 1B, etc
4. Load type ...
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Omron household oxygen concentrator failure and maintenance method
1/4 of the machine is not running, but the power indicator is on:
Reason: The compressor is overheated, so that the compressor turns on the overheating protection and stops automatically.
Exclusion method: If the machine runs for a long time without stopping, suddenly stops one day, and can run again after the machine is turned off and cooled, this is ...
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Omron PLC--CPM1A-V1 series product model
1. CPM1A-10CDR-A-V1 10-point CPU unit AC100-220V, 6 points in, 4 points relay output
(1A is the model code; 10 means that the total number of input and output points is 10 points, specifically 6 points of input and 4 points of output; C means CPU unit; D stands for mixed type, that is, there is a loss ...
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Omron applications in semiconductor wire bonding equipment
Process introduction
High-purity gold wire (Au), copper wire (Cu) or aluminum wire (Al) is used to connect the Pad and Lead by soldering.
■ PAD is the external contact point of the circuit on the chip
■ Lead is the connection point on the Lead Frame.
W/B is the encapsulation process ...
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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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Fault detection method for Omron relays
Fault detection method 1
1. You can check whether the voltage of the Omron relay is high or low, generally the maximum is between 180V-240V, if the excess value deviation is too large, it is possible that the Omron relay has been damaged.
Fault detection method 2
2. ...
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