Megmeet PLC – the three programming languages of PLC

1. Realize remote control of industrial field equipment; 2. The PLC industrial gateway realizes remote upgrade of equipment firmware, downloads the program, and can flexibly access various equipment management platforms; 3. Realize remote control of industrial site touch screen and remote mapping of configuration screens; 4. PLC industry ...

1. Maintenance items and scope: Daily maintenance and maintenance of inverter Due to the influence of environmental temperature, humidity, dust and vibration, it will lead to the aging of the internal components of the inverter, resulting in the potential failure of the inverter or reducing the service life of the inverter. Therefore, there is a must ...

Inverter energy saving The energy saving of the inverter is mainly manifested in the application of fans and pumps. In order to ensure the reliability of production, all kinds of production machinery are designed with power drive, and there is a certain amount of surplus. When the motor cannot operate at full load, in addition to meeting the power drive requirements, ...

1. The electrical control cabinet installed with PLC should have a clean and dry environment. Moisture-absorbing dry materials should be placed inside, and the splashing of coolant and oil mist should be prevented. 2. Regardless of the system working or shutdown, the electrical cabinet door should always be closed, and the electrical components should be kept in a good state.

When the inverter is installed and wired; Note: When more than two inverters are installed in the same cabinet, please pay attention to the installation position and spacing to ensure the heat dissipation effect. Dangerous: 1. It should be operated by professional electrical engineering personnel, otherwise there is a risk of electric shock. 2. Please make sure before wiring...

1. After connecting the wires according to the wiring diagram, start the power supply and prepare to set the parameters of the inverter. 2. Press the "MODE" button to enter the parameter setting mode, and set the Pr.79 to "2": external operation mode, the start signal is input by the external terminal (STF, STR), and the speed adjustment is carried out by the external terminal.

1. Overcurrent fault of inverter Fault Code: OCF. (1) Fault name: inverter overcurrent fault (2) The cause of the failure: the motor nameplate data input is incorrect: the load dragged by the motor is too heavy: the machinery is stuck; Motor stalled. （3） ...

The first is that the PLC sends a start/stop signal to the server through the I/O point, and the server controls the operation of the servo motor. The PLC controls the operation/stop of the servo through the digital output, so as to achieve the purpose of controlling the servo motor. The second is through the pulse output of the PLC, which ...

PLC maintenance and inspection steps: 1. Check and make sure the mains power is on (120 VAC) 2. Check the available 24V power supply 3. Identify problem areas. It is recommended that peak currents cover this error code, a control method consisting of multiple components distributed over an area or process.

The system efficiency is equal to the product of the efficiency of the inverter and the efficiency of the motor, and the system efficiency is higher only when both are working at higher efficiency. From the perspective of efficiency, the following points should be paid attention to when selecting the power of the inverter: 1) Inverter power value and motor power ...

1. E1: indicates sensor failure. In this case, it is necessary to check whether the sensors of Megmeet are damaged or whether the wiring is loose. 2. E2: Indicates overweight load. At this point, it is necessary to check whether the load of Megmeet exceeds the set maximum load. 3. E3: Indicates battery ...

Before using the inverter, the inverter parameters should be carried out from the following aspects: First, confirm the motor parameters, the inverter sets the power, current, voltage, speed, and maximum frequency of the motor in the parameters, and these parameters can be directly obtained from the motor nameplate. Clause...

Zhuzhou Lihui Technology Co., Ltd., a subsidiary of Megmit, has put into use a new production line of PEU intelligent production of new energy cars, leading the wave of intelligent production of PEU in the key "three electric" components of domestic new energy cars. Zhuzhou Lihui Technology Co., Ltd. production workshop, a new ...

11。 If the interface board does not communicate with the monitor and does not establish communication with the interface board, the interface board will reset the monitor every 5 seconds, and if the communication is not established within 3 minutes and 30 seconds, it will be judged as a serious fault. Whether the communication line is normal, check whether the terminal is correct; Whether the I/O board is working properly. Especially the work ...

1. External equipment failure. Such faults come from external devices such as various sensors, switches, actuators, and loads. The failure of this part of the equipment will directly affect the control function of the system. This type of failure is usually caused by the quality and longevity of the equipment itself. 2. System failure ...

1. Regularly dust the inverter, focusing on the rectifier cabinet, inverter cabinet and control cabinet, if necessary, the rectifier module, inverter module and the circuit board in the control cabinet can be removed for dust removal. Whether the lower air inlet and upper air outlet of the inverter are dusty or blocked due to excessive dust. The inverter is due to the ...

1. The PLC adopts the mode of centralized sampling and centralized output, which can reduce the influence of external interference. 2. The working process of PLC is the process of cyclic scanning. The duration of the cyclic scan depends on the speed of execution of the instructions and the length of the user's program. 3. Output to input ...

1. The CPU is abnormal When the CPU is abnormally alarmed, check all the devices connected to the internal bus of the CPU unit. The specific method is to replace the potentially problematic units sequentially, find out the problematic units, and deal with them accordingly. Second, the memory is abnormal Memory anomaly alarm ...

1. CPU abnormality: When the CPU is abnormally alarmed, check the device connected to the internal line 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 abnormal alarm, if it is a program ...

1. The welding machine has no welding current output 1. Cause of failure: the internal wiring of the non-voltage input at the input end of the welding machine falls off or the internal coil of the broken circuit is burned out. 2. Treatment method: check whether the switch, wire, fuse and connection parts from the distribution box to the input end of the welding machine are in good condition.