Troubleshooting methods for unsuccessful touch screen penetration

Xinjie PLC conditions are established, why is the corresponding coil not in place? There are two possible reasons for this: (1) The same coil may be used in multiple places to perform the double coil output, and when the double coil is output, the coil on the rear side will operate first. （2） ...

There are many novices who are not familiar with the false load about the maintenance inverter, and the maintenance inverter uses the false load to keep many of their modules, because the maintenance novice generally does not know how to do this, and now the electric light is on to clarify that the module is going to be broken. A dummy load is a load with a resistor of several hundred ohms ( ...

1. Introduction TP Contact Industrial Graphic Displayer (referred to as contact screen) is a human-machine interface (known as HMI or MMI in foreign countries) that connects humans and machines (mainly PLC), which is known as the face of PLC. It is a generation ...

The suffix is XT and only supports RS232 communication, 4 inches out. The suffix MT supports RS 232/485/422 communication. The suffix is UT on the basis of MT, and a U disk port is added, which can be used to import and export engineering and CSV data from U disk. The suffix is named ET and is added to the UT ...

(1) There is no need to adjust the parameters, we can maintain the original parameters (default value) when the inverter leaves the factory. (2) It is the parameter that needs to be set and changed before the trial operation. (3) It is a parameter that is adjusted in the operation of the demand. Frequency converters ...

1. The inverter is used in the air conditioning load class Office buildings, shopping malls and some supermarkets and factories have central air conditioning, and the electricity consumption of air conditioning is very large at the peak of electricity consumption in summer. In the hot climate, Beijing, Shanghai, Shenzhen air conditioning ...

PLC is the abbreviation of programmable logic manipulator, which is a digital operation manipulator with a microprocessor for automatic control, which can load control instructions into memory at any time for storage and fulfillment. PAC is an abbreviation for Programmable Automation Manipulator. PAC in industrial control ...

Xinjie PLC丨The condition is established, why is the corresponding coil not in place? There are two possible reasons for this: (1) The same coil may be used in multiple places to perform the double coil output, and the coil on the rear side will operate first when the double coil is output. （2 ...

(1) Whether there is an abnormal change in the sound during the operation of the motor, including whether there is vibration during the operation of the motor. (2) Whether the installation environment of the inverter has changed. Whether the ambient temperature is normal, the operating temperature of the inverter is generally required to be in the range of -10 °C - +40 °C, and it is better to take about 25 °C.

In order to shorten the early problem period, further extend the random problem period, and postpone the arrival of the wear and tear problem period, we will generally choose the method to take a certain approach at the beginning of the system planning.

Input and output module, if it is the kind of relay output, it is normal to have a little movement, because the relay is a mechanical equipment, there will be a little noise during the action, but the average person can not hear it, if it is obvious, it is estimated that the relay is broken, such as a short circuit between the turns of the coil, please pay attention to: Rongji point ...

1. Look inside the electrical cabinet, for example, to see if there are small animals and their droppings, and whether there are condensation or water marks. If the dust in the cabinet is large, please clear the external radiator of the inverter. 2. Assuming that the humidity is relatively large, there are condensation or water marks, please open the cabinet door first, ventilate and dehumidify, you can use electric fans, etc.

1. Save the transformation cycle, no need for large-scale construction: eliminate the trouble of wiring maintenance, and easily complete the transformation within one day and meet the requirements of communication stability. 2. The device is simple, no programming is required: the wireless communication terminal only needs to ...

Model introduction of Xinjie PLC 　　XC series Including XC1 (economy), XC2 (basic), XC3 (standard), XC5 (enhanced), XCM (sport), XCC (high-performance) and their corresponding expansion modules, as well as special analog bodies and other special models. XC series PLC can be ...

It is necessary to route the signal line and the power line separately: When using the analog signal remote control inverter, in order to reduce the disturbance of the analog signal of the VFD and other equipment, please separate the signal line of the VFD control from the strong current circuit (main circuit and sequential control circuit). The spacing should be more than 30cm. Even in the control ...

The voltage waveform output by the inverter is similar to a sine wave, but not a real sine wave. Its waveform contains a large number of harmonic components, especially the higher harmonics will increase the output current of the inverter, form the motor winding heating, produce vibration and noise, accelerate the aging of insulation, and even ...

1. Check the full-load power supply of the inverter (Variable-frequency Drive (VFD). 1. Ground the terminal strip of the VFD. 2. Type the switching power supply of VFD into the terminal and receive it from the switching power supply through the power switch of the leakage protector. 3. ...

1. When the PLC and the host computer (or touch screen) form a monitoring system, there are many times on the screen that there are "manual", "active" and other control modes (generally more than one). In the program, you can use the "MOV" command. For example, when selecting "manual", the constant 1MOV will be ...

(1) What is the current setting value of the thermal relay? The setting current of the thermal relay refers to its action current, that is to say, it is adjusted between 0.95 - 1.05 times of the rated current of the motor being maintained.

Why does the motor driven by the inverter overheat? This is due to the fact that the voltage of the inverter drive motor contains a rich high-frequency component. The voltage waveform of the inverter-driven motor is not a sine wave voltage, but a pulse-width modulation (PWM) voltage. According to Fu Liye's analysis, this waveform ...