1. Mitsubishi PLC's analog signal control inverter
Hardware: FX1N, FX2N PLC hosts, equipped with 1 simple FX1N-1DA-BD extended analog output board; or analog input-output hybrid module FX0N-3A; or FX2N-2DA with two outputs; or a four-output FX2N-4DA module, etc.
Advantages: PLC programming is simple and convenient, the speed control curve is smooth and continuous, and the work is stable.
Disadvantages: In the large-scale production line, the control cable is long, especially when the DA module selects the voltage signal output, the line has a large voltage drop, which affects the stability and reliability of the system. In addition, from an economic point of view, such as controlling 8 inverters, 2 Mitsubishi PLC-FX2N-4DA modules are required, and the cost is 5-7 times that of the selected extended memory communication control.
Second, the switching signal of Mitsubishi PLC controls Mitsubishi inverter
The output point and COM point of Mitsubishi PLC (MR type or MT type) are directly connected to the STF (forward actuator), RH (high speed), RM (medium speed), RL (low speed), and input SG ports of the inverter. Mitsubishi PLC can control the initiation, abort, and reset of the inverter through the program; It can also control the different combinations of high-speed, medium-speed and low-speed terminals of the inverter to complete multi-stage speed operation.
However, because it is controlled by switching quantities, the speed regulation curve is not a continuous smooth curve, and it cannot complete the fine speed conditioning. The speed regulation accuracy of this switching control method cannot be compared with that of the extended memory communication control.
3. The PLC uses the Modbus-RTU communication method of RS-485 to control the inverter
The new Mitsubishi F700 series inverter uses RS-485 terminals to communicate with the PLC using the Modbus-RTU protocol.
Advantages: PLC programming of the Modbus communication method is simpler and more convenient than the RS-485 protocol-free method.
Disadvantages: PLC programming workload is still very large.
Fourth, Mitsubishi PLC uses the fieldbus method to control the inverter
Mitsubishi drives can be built with various types of communication options, such as the FR-A5NC option for CC-Link fieldbuses; FR-A***P(A) option for Profibus DP fieldbus; FR-A5ND option for DeviceNet fieldbus and much more.
FX series Mitsubishi PLC has a corresponding communication interface module to dock with it.
Advantages: fast speed, long distance, high efficiency, stable operation, simple programming, large number of inverters that can be connected.
Disadvantages: The cost is high, much higher than the cost of using extended memory communication control.
5. The PLC uses RS-485 protocol-free communication method to control Mitsubishi inverter
This is a widely used method, and the PLC uses RS serial communication command programming.
Advantages: The hardware is simple, the cost is low, and it can control 32 inverters. Mitsubishi PLC controls the inverter in several ways.
|
More on that
|
How to deal with Mitsubishi PLC failures - Mitsubishi
01. Base system problem
In Mitsubishi PLC, binary, octal, decimal 10, hexadecimal, 2-10 (BCD), etc., we need to master the conversion of 2-8 base.
2-8, the binary number is remembered from the back, every 3 dividends in a group, each group is separated into 8 bases, such as 1 ...
|
|
Mitsubishi servo motor is now commonly used
1. Torque control: Torque control is based on external simulation simulation type or direct address assignment to set the output torque of the motor shaft. For example, 10V matches 5Nm. When the external simulation simulation is set to 5V, the output of the motor shaft is 2.5Nm. If the load on the motor shaft is less than 2.5Nm, ...
|
|
Mitsubishi FX series PLC master control command
The FX2N has a total of 27 fundamental logic instructions, including 20 fundamental logic instructions of some sub-series PLCs.
Master Control Command (MC/MCR)
(1) MC (Master Control Command) for common tandem contacts ...
|
|
Precautions for the use of Mitsubishi L series PLC terminal cover
Mitsubishi L series PLC is the same as Q series PLC is a modular PLC, in the specific engineering application, users according to the actual needs of the CPU, power supply, input and output and other special function modules for combination. However, there is a difference between the L series PLC and the Q series PLC in terms of hardware composition.
|
|
Mitsubishi FX1N switching power supply fault repair
Problem description: The power supply of the Mitsubishi FX1N-60MR-001 has no display (the safety guard, filter, temperature protection element, and rectifier are damaged).
Inspection and repair: After the PLC is connected to the power supply, the power indicator (POWER light) does not light up.
|
|
Confirmation and clearing of Mitsubishi inverter FR-CS80 alarm history
When the FR-CS80 inverter detects an abnormality, it will display an error message or alarm in the operation panel according to the abnormal content, or maintain the function action and block the output of the inverter. When maintaining a function operation, please deal with the cause of its operation before resetting the inverter, and then start working. ...
|
|
Mitsubishi PLC network structure
1. The equipment layer/fieldbus CC-Link equipment layer is a field network that connects PLC and other control equipment, sensors and drive equipment, which is the lowest layer of the entire network system. CC-Link fieldbus connection is selected, the number of wiring is greatly reduced, and the maintainability of the system is improved. Combine...
|
|
Mitsubishi servo maintenance failure analysis
Major Failures and Analysis:
1. Motor encoder alarm
1. The cause of the failure
(1) Wrong wiring;
(2) electromagnetic interference;
(3) Encoder hardware damage caused by mechanical vibration;
(4) Pollution caused by the on-site environment;
2. Troubleshooting
...
|
|
Mitsubishi Inverter F740 restores factory default
Press the "SET" button to end the factory setting.
Defects usually occur due to problems with the resistors or wiring of the voltage detection loop, rather than the actual undervoltage of the input voltage. OC disadvantages of the A200 series ...
|
|
Mitsubishi Electric will introduce the T-series 2.0kV IGBT module for industrial use
Tokyo, June 9, 2021 – Mitsubishi announced the upcoming launch of its industrial T-series 2.0kV insulated gate bipolar transistor (IGBT) module, the world's first IGBT1 with a 2.0kV withstand voltage, June 30. This module is ideally suited to increase the power of renewable energy power converters ...
|
|
Mitsubishi Electric begins research and development of a Mars satellite probe probe
TOKYO, February 21, 2020 – Mitsubishi Electric Corporation (TOKYO:6503) announced today that it has been appointed by the Japan Aeronautics and Astronautics Agency (JAXA) as the contractor for the Mars Lunar Probe (MMX) space probe. Mitsubishi Electric has launched development activities for the project that will utilize MMX's system ...
|
|
Mitsubishi Q Series PLC and GX Works2 connection method
01 USB connection
USB connection requires a device USB driver, generally after installing GX Works2 software, it will automatically install the driver, but a single time due to antivirus software or system reasons, may not be installed, then we need to manually drive the device to the accounting machine. The specific device method we ...
|
|
Mitsubishi PLC set and reset command use example
1 SET Directive
The SET instruction is called an enthronement instruction. Its function is: to drive the coil, so that it has a self-locking function, and insists on the connection condition. In the diagram, when the moving contact X0 is closed, the SET command is executed to turn on the Y0 coil. After X0 is disconnected, the Y0 coil continues to insist on the ON condition, ...
|
|
Introduction to the functions of Mitsubishi's commonly used servo motor series
Mitsubishi servo motor MR-J2S series
1. The product also has RS-232 and RS-422 serial communication function, which can be used for parameter setting, trial operation, status display and gain adjustment through the personal computer installed with servo setting software.
2. Matching with MR-J2S series ...
|
|
Mitsubishi PLC network structure
1. The equipment layer/fieldbus CC-Link equipment layer is a field network that connects PLC and other control equipment and sensors and drive equipment, which is the low-level network of the entire network system. The CC-Link fieldbus connection is selected, and the number of wiring is greatly reduced, and the system maintainability is improved. Whereas...
|
|
Introduction to the principle of Mitsubishi tension controller
The tension controller can be called the tension manipulator, which is generally equipped with magnetic powder brake, magnetic particle clutch and tension detector, and is suitable for winding, unwinding, tension control, etc. It also has the so-called manual control function, which generally refers to the ability to give a certain amount of output through the tension manipulator ...
|
|
Preparation steps for the installation of PLC - Mitsubishi
Installation and commissioning of the system
Reasonable arrangement of system installation and commissioning procedures is the key to ensure that the installation and commissioning mission is completed efficiently and with high quality.
1. Preliminary skill preparation
The more abundant the skills to prepare for the commissioning of the system device, the smoother the installation and commissioning will be. Former...
|
|
Mitsubishi FX series PLC error command and solution
1. Error message: NO ERROR--No abnormal error occurs
Abnormal content and cause: No abnormal occurrence
Solution: Check whether the cable connection between the host and the I/O expansion base/module is normal
2. Error message: ...
|
|
MITSUBISHI MELFA ASSISTA COLLABORATIVE ROBOT
With the spread of industrial robots in the production site, more and more on-site issues need to be solved, such as the need for more robot programming engineers, which increases the human cost; The teaching is complicated, which increases a lot of non-production time; Set up guardrails to increase the cost of space and installations; Robot...
|
|
Mitsubishi Electric expands 6th generation 1200V large-scale DIPIPM
Power semiconductor module for 40kW class commercial air conditioner
Expansion of the "6th Generation 1200V Large DIPIPM" product lineup
Mitsubishi Electric Corporation will sell the power of inverters that drive commercial air conditioners and other products on August 30.
|
|