Megmeet PLC - What is the difference between PLC and MCU?

1. The motor runs differently in both directions Cause of failure: The phase of the brushless motor is wrong; The deviation potentiometer is in the wrong position. Solution: Detect or detect the correct phase; Reposition the potentiometer. 2. The motor speed is abnormal Cause of failure ...

Advantages of resistance welding: 1。 When a nugget is formed, it is always surrounded by a ring of plastic, the molten metal is isolated from the air, and the metallurgical process is simple 2。 The heating time is short, the heat is concentrated, the heat affected zone is small, and the deformation and stress are small. In general, there is no need to arrange calibration and heat after welding.

1. When the oscilloscope looks at the current monitoring output of the driver, it finds that it is all noisy and cannot be read Cause: The current monitoring output is not blocked from the AC power supply (transformer). Solution: You can use a DC voltmeter to detect and investigate. 2. Servo motor high speed ...

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） ...

1) Shut down, so that the inverter out of the operating state; 2) Cut off the high-voltage power supply and push out the high-voltage cabinet trolley (when there is a bypass cabinet. The inverter can be isolated by the disconnecting switch of the bypass cabinet), the local or remote high-voltage disconnect switch can be locked, and the high-voltage cabinet grounding switch can be grounded; 3) Hit ...

The EhaveCM350AR is a fully digital inverter melting multi-functional industrial heavy-duty Megmeet welding machine launched by Megmeet for global metalworking manufacturing. It brings customers higher quality and higher efficiency welding experience and value with excellent arc characteristics, reliability and high efficiency, and helps customers ...

1. Fault phenomenon: light voltage abnormal indicator Cause: Due to the slow start-up action, the switch contact is not synchronized. Solution: You can turn the device off and on again. 2. Fault phenomenon: the fan does not rotate, and the abnormal voltage indicator light is lit together Causes ...

3) Tungsten argon arc welding (TIG) Non-melting electrode gas arc welding, TIG welding, English is Tungsten Inert Gas (abbreviated TIG), also known as Gas Tungsten Arc Welding (abbreviated GTAW) The principle is: TIG welding is in argon and other inert gases.

Fault three Fault phenomenon: There is a rebound phenomenon when the rotation starts Solution: 1. Set the start frequency P08.02 and start frequency time P08.03 appropriately (such as P08.02=P08.03=0.5) 2. Appropriately reduce the stator resistance (P03.07) and no-load current value (P03.11 ...

1. No-load energizing test of inverter 1. Ground the grounding terminal of the inverter. 2. Connect the power input terminal of the inverter to the power supply through the leakage maintenance switch. 3. Check whether the factory display of the inverter window is normal, if it is incorrect, it should be reset, otherwise it should be ...

Inverter control cabinet (inverter electrical control cabinet / electric control cabinet / electric control box) is an electrical control cabinet developed by using inverters from Siemens, ABB, Schneider, Fujifilm, Mitsubishi, Panasonic, Delta, Shilin, Inovance and other manufacturers. According to the needs of working conditions, AC transmission can be installed in the frequency conversion cabinet.

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 ...

Fault one Fault phenomenon: the leakage protection switch trips, the inverter is energized or the equipment leakage protection switch is operated during operation Solution: 1. When the inverter drives the motor, the leakage value is larger than that of the non-inverter system, and the leakage protection value of the leakage protection switch is required to be more than 150mA, ...

21。 The unit is overheating The radiator in the unit is equipped with a temperature switch (normally closed point), and when the temperature exceeds 85°C, the normally closed point of the temperature relay is disconnected, and the unit is overheated and faulty. Check whether the cabinet top fan is working properly, whether the unit cabinet fan switch is tripped, and whether the filter screen is blocked.

One. It is difficult to start the arc and easy to break the arc 1. Confirm that the quality of the electrode you use is good, and the poor quality electrode may not meet the requirements of high-quality welding: 2. The welding rod that has not undergone drying treatment is also not easy to arc, and causes the arc to be unstable, so that the welding defects increase, and the welding ...

11. For the occasion when the inverter drives the ordinary motor for constant torque operation, long-term low-speed operation should be avoided as much as possible, otherwise the heat dissipation effect of the motor will become worse and the heating will be serious. If long-term operation at low speed constant torque is required, a variable frequency motor must be selected. 12. For the promotion of negative ...

Installation: The installation mode of PLC system is divided into centralized, remote I/O and distributed with multiple PLC networking. Centralized does not need to set up the drive remote I/O hardware, the system response is fast, and the cost is low; Remote I/O is suitable for large systems with a range of ...

1. It is necessary to figure out the basic parameters and shape of the device that needs to be replaced. The basic parameters include the rated operating current, the capacitance of the capacitor, the resistance value of the resistor, the value of the GTR Darlington device (current amplification factor), the switching characteristics of the IGBT (including IPM) device, and the saturation voltage ...

(1) The ambient temperature exceeds the range of 0-50 °C; (2) The relative humidity exceeds 85% or there is dew condensation (caused by sudden temperature changes or other factors); (3) direct sunlight; (4) There are corrosive and flammable gases, such as hydrogen chloride, ...

With the rapid development of the machinery manufacturing industry, the traditional general machine tool can no longer meet the changing parts processing needs of the shopping mall. CNC machine tools have undeniably become the mainstream processing equipment of today's machinery manufacturing. In response to the special application needs of the machine tool industry, Megmeet has launched the MV series of high-function ...