Precautions when connecting the servo and the PLC

The problem of the inverter is not only affected by external factors, but also by internal factors. 1. The inverter parameter setting is unreasonable and countermeasures to make the inverter work normally, in addition to the normal equipment, the parameter setting is also very important, if the parameter is not set properly, it will not be able to ...

At present, in the domestic PLC market, there are many kinds, but there are not many domestic PLC manufacturers with real strength, most of the domestic PLC is not an individual who does not have the qualification of a legal person, or a single-chip microcomputer enthusiast, from the domestic PLC factory to buy the underlying programming code or buy a domestic PLC chip (the domestic P that burns the underlying code...

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. ...

Xinjie XDM series PLC, XDM is the sports control PLC in the XD series, now has the following types: XDM-24T4-E/C, XDM-32T4-E/C, XDM-60T4-E/C, XDM-60T10-E/C. The XDM series has the following ...

The damage of the inverter to the motor contains two aspects, the damage of the stator winding and the damage of the bearing, this damage usually occurs in a few weeks to more than ten months, the detailed moment and the inverter brand, the motor brand, the motor power, the inverter carrier frequency, the cable length between the inverter and the motor, the ring ...

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 ...

1. PLC input and output A small PLC controls a complex system with agility, and what can be seen is the upper and lower rows of staggered input and output relay terminals, corresponding lamps and PLC numbers, just like a piece of integrated electricity without dozens of feet. If any ego doesn't look at reason...

Motor overload: There is no need to set overload maintenance parameters in frequency conversion. The inverter generally acquiesces to the motor overload maintenance based on the motor power. Generally, it is 1.2 times 60 seconds to report the overload problem. The overload factor is not the same for different frequency converters. ...

The XC series includes XC1 (Economy), XC2 (Basic), XC3 (Standard), XC5 (Enhanced), XCM (Sport), XCC (High Performance) and their corresponding expansion modules. XC series PLC can be ...

What is a frequency converter? Variable frequency drive (VFD) uses inverter technology and microelectronics to change the operating power frequency of the motor to control the power control unit of the communication motor. The inverter is mainly composed of rectifier (from communication to DC), inverter, inverter (from DC ...

The grounding policy is nothing more than to avoid disturbance for safety, and the policy of grounding to PLC must not be attached to the disturbance at the power supply and input and output terminals, so the accurate grounding system is one of the primary methods for the PLC control system to resist electromagnetic disturbance. There are floating and direct grounding formations.

1. The speed regulation power is high, which is an efficient speed regulation method. This is because after the frequency change, the motor is still working in close proximity to the synchronous speed, and the rated slip is fundamentally adhered to. It's just that in the frequency conversion equipment system, there will be conversion loss, and because of the influence of higher harmonics, the loss of the motor will increase.

The internal disturbances of the PLC system are mainly caused by the mutual electromagnetic radiation between the internal components and circuits of the system, such as the mutual radiation of logic circuits and their influence on the imitation circuit, the interaction between imitation and logic, and the mutual mismatch between components. How to deal with PLC long distances ...

PLC programmable logic manipulators are the core part of industrial control. According to the number of I/O points of PLC, PLC can be divided into three categories: small PLC, medium and large. It is a digitally operated electronic device designed for industrial production. It uses a programmable memory to store programs that execute user-facing ...

1. The cause of the leakage problem Some sites use frequency converters to control the motor, which will present the problem of leakage, and the leakage voltage ranges from tens of volts to 200 volts. In view of this problem, the reason for this problem is explained and stated as follows. Depend on...

The development status of human-computer interface shopping malls in China China is the shopping mall with the largest demand for human-computer interface in the world, but it is not the shopping mall with the highest sales of human-computer interface products in the world.

1. Non-short-circuit overcurrent, which is mainly due to: (1) The motor is severely overloaded. (2) The motor accelerates too fast. (3) Due to the U/f ratio (torque compensation) setting is too high, the motor is in a light load condition. 2. Short circuit ...

We want to make sure that the capacity of the inverter is matched. First of all, according to the nature of the load, the correct type of inverter is selected. The general criterion is what is the nature of the load characteristics with what characteristics of the inverter, the following is mainly for pumps and other equipment to clarify. ...

Switch Mode Power Supply (SMPS) will cause the base of the switch tube to fail to get the switching pulse and intermittent operation due to the short circuit of the load, the failure of the vibration circuit itself and the loss of control of the protection circuit, which makes it difficult to locate the shortcomings of SMPS. Difficult to repair ...

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 ...