The capacity (non-functional) of the Mitsubishi inverter of the drive motor can be understood from the change in energy activity determined by the operating method.
1. When operating at speed or constant speed
The efficiency of the inverter is the output current, which is how much current the inverter can provide to the motor. The efficiency of this output current of the inverter can be expressed by the rated output current or overload.
2. During deceleration operation
Because the motor driven by the Mitsubishi Variant becomes a generator during the deceleration operation, the activity of energy flows from the motor to the inverter, and the function of the inverter is to consume this energy, contrary to the acceleration or constant speed operation of the inverter.
Part of the energy returned by the motor load during deceleration is consumed by the motor, while the rest is consumed by the inverter. In addition, because the energy returned to the inverter increases the terminal voltage of the smoothing capacitor, when the voltage is drawn to a certain value, it will produce regenerative energy consumption or energy return to the power supply side, although the activity state.
Mitsubishi inverter capacity selection key:
The capacity of Mitsubishi inverters should match the capacity of the motor they drive, and the selection of inverters should be determined according to the load characteristics, operation methods, etc. In order to avoid accidents (such as the motor cannot be started), we should be clear that the inverter drives the motor, and its V/F control torque is higher than that of the power frequency drive in the low frequency area.
|
More on that
|
Introduction to the Mitsubishi FX PLC Outage Service
1. What is suspension?
The so-called suspension refers to the fact that in the process of sequentially performing the program scanning, when there is a request to respond immediately, the scanning work performed at that time is immediately suspended, and the service work specified in the request is performed first. When the service job is complete, go back to ...
|
|
Advantages of Mitsubishi inverter installation reactor
Features of the output reactor:
1. It is suitable for reactive power compensation and harmonic management
2. The primary effect of the output reactor is to compensate for the influence of long-line distributed capacitance, and output harmonic current according to the press; 3. Effectively maintain Mitsubishi inverters and improve the power factor, which can thwart the ...
|
|
Advantages of Mitsubishi Electric fresh air system
Mitsubishi Electric's fresh air system realizes indoor ventilation, but of course, we can't just replace the outdoor air into the room, a good fresh air should filter the harmful substances in the air, so that the air entering the room is not only fresh, but also clean and harmless.
...
|
|
PLC troubleshooting method - Mitsubishi
1. If the PLC stops in the middle of some outputs where the output is excited, then look for the signal that caused the next operation (input, timer, line, drum manipulator, etc.). The programmer will show the ON/OFF status of that signal.
...
|
|
Precautions for the use of Mitsubishi servo motor with brake
1. Occasions to choose a servo motor with brakes:
The servo motor is mainly loaded through the motor shaft, if the load driven by the motor shaft is in the straight direction, after the whole control system is powered off, the load on the servo motor shaft will be driven to run down under the effect of gravity, so that ...
|
|
Inverter overload fault factor - Mitsubishi inverter
1) The mechanical load is too heavy
The main characteristic of overload is the fever of the motor, and it can be detected by reading the operating current from the display. The main factor is that the load of Mitsubishi inverter is too large, and the acceleration and deceleration time and operation cycle time are too tight; V/F features voltage too ...
|
|
Mitsubishi PLCFX3U positioning control
Origin regression command with DOG lookup function
Mitsubishi PLCFX3U origin regression command with DOG lookup function: DSZR.
1. The workbench runs in the direction of the value reduction of the current value register (generally runs in the opposite direction M8342 ...
|
|
MITSUBISHI COLLABORATIVE ROBOT MELFA ASSISTA
With the popularization of industrial robots in the production site, more and more Mitsubishi collaborative robots, Mitsubishi robots, MELFA ASSISTA, RV-5AS-D on-site issues need to be solved urgently, such as the need for more robot programming engineers, adding labor costs; The teaching is cluttered, and a large number of non-...
|
|
Mitsubishi garbage incinerator equipment with a daily processing capacity of 1,500 tons was delivered and put into operation
Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. (MHIEC, President: Takayuki Hishinuma, Headquarters: Nishi-ku, Yokohama), a subsidiary of the Mitsubishi Heavy Industries Group, has supplied two advanced Mitsubishi grate furnaces to a large-scale waste-fired power plant in Xiaogan City, Hubei Province, China. The waste-fired power generation ...
|
|
Mitsubishi PLC Comparison Instruction Application
1. Compare the instruction CMP
1)。 16-bit arithmetic (CMP, CMPP) compares the contents of the comparison value S1 with the comparison source S2, and according to the results (small, - zhi, large), D, D+1, D+2 - one is ON.
...
|
|
Mitsubishi PLC programming cable communication port setting method
1. Plug the programming cable into the USB port of the computer.
2. On the desktop, place the mouse on the "My Computer" icon, and then right-click.
3. In the pop-up menu, select "Device Manager".
...
|
|
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...
|
|
Internal data structure of the Mitsubishi PLC FX series
A lot of data is used in the internal structure of the PLC and in the user's use program. These data have the following ways in terms of structure or number system.
(1) Decimal number
Decimal numbers are also known as word data in PLC. It is first and foremost ...
|
|
PLC Programming Recommendations – Mitsubishi PLC
1. When the PLC and the host computer (or touch screen) form a monitoring system, there are many hours on the screen that require "manual", "active" and other control forms (generally more than one). In the program, you can use the "MOV" command. For example, when selecting "manual", the constant 1 MOV will be changed to a ...
|
|
Mitsubishi inverter encountered problems and solutions
1. If you want to use the inverter to drive the motor with a capacitor to improve the power factor, but the motor does not move, please explain the reason.
The current flowing into the inverter is used to improve the power factor, but the capacitor cannot be started because its charging current causes the inverter overcurrent (OCT), as a countermeasure, ...
|
|
Mitsubishi PLC controls the control method of the inverter
1. Use the switching signal of PLC to control the inverter
The output point and COM point of the PLC (MR type or MT type) are directly connected to the STF (forward engine), RH (high speed), RM (medium speed), RL (low speed), and SG input ports of the inverter. The PLC can control the inverter through the program.
|
|
Application of Mitsubishi FX PLC in speed measurement
[Example] a motor is equipped with an optical encoder (the optical encoder is coaxially installed with the motor), and the FX2N-32MT is used to measure the speed of the motor.
【Solution】
Because the photoelectric encoder is coaxially installed with the motor, the ...
|
|
Mitsubishi Electric instruction format
(1) Arbitrary axis AC command (G140)
G140 Instruction Address = Axis Address Instruction Address = Axis Address ... ;
Command Address: Arbitrary Axis AC Command (G140) After that, specify the 1-character address set by the parameter (#12071-#12078) to be used for moving commands, etc.
|
|
Mitsubishi inverter heat dissipation causes and countermeasures
1. Whether there is abnormal change in the sound during the operation of the equipment, including whether there is oscillation during the operation of the motor.
2. Whether the ambient temperature of the inverter installation is too high or too low, the working temperature is generally required to be in the range of -10°C - +40°C, and it is better to be about 25°C.
...
|
|
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...
|
|