Anqing Siemens inverter agent

Anqing Siemens inverter agent

Siemens frequency converter analog frequency setting method

I. Overview

　　Siemens frequency converterIt has a wide range of applications in automation control systems, especially for loads such as fans and pumps. In order to control the speed of fans and achieve energy-saving requirements, frequency converters are often added to the control system. Siemens frequency converters can control equipment through communication with Siemens PLCs, and users can also set the frequency of Siemens frequency converters through analog signals to drive and control equipment. Below is an introduction to the analog frequency setting method for Siemens inverters, which users can refer to.

2、 Siemens frequency converter analog frequency setting method

There are various types of Siemens inverters, and this article focuses on the MM seriesMM440Taking the frequency converter as an example, there are mainly two types of setting methods:

1. Use 4-20mA as the frequency setting

The user's on-site instrument usually has a 4-20mA output. If this signal is used as the frequency setting signal for the frequency converter, a frequency setting error will occur The default setting of the frequency converter is 0-20mA corresponding to 0-50HZ. In order to make 4-20mA correspond to 0-50HZ, it can be done

The following settings:

Parameters

P0756=2

P0757=4,

P0758=0

P0759=20

P0760=100%。

2. Use 1-10V as the frequency setting

If the user's signal source is 1-10V, using this signal as the frequency reference signal for the frequency converter, that is, 1-10V corresponds to 0-50HZ of the frequency converter, the following settings can be made:

Parameters

P0756=0

P0757=1

P0758=0

P0759=10

P0760=100%。

3. Summary

In summary, Siemens frequency converters can control motors by setting the frequency through analog signals. Users can choose according to their actual needs and operate according to the methods provided in this article to achieve Siemens frequency converter control of the motor. If users need to learn more about and use Siemens frequency converter series, we will also provide better technical support.

I. Overview

　　Siemens inverter SINAMICSThe G120 series is widely used in the field of industrial automation control, providing users with high-precision speed control or torque control. It adopts a modular design, providing high flexibility for users to use, maintain, and replace modules when live. At the same time, it also has powerful communication functions, which can communicate with multiple devices, allowing users to easily monitor the operating status of the frequency converter and modify parameters. Siemens inverter SINAMICSG120The core of the series is the control unit, which users can set through settingscontrol unitTo achieve the normal operation of the frequency converter, the parameters above are used. Users sometimes need to optimize the performance of Siemens frequency converters to ensure better operation. This article provides a brief introduction to the dynamic optimization function of Siemens inverter SINAMICS G120 series for users to refer to during debugging.

2、 Siemens inverter SINAMICS G120 dynamic optimization function

In practical applications, Siemens inverter SINAMICS G120 usually undergoes dynamic optimization to ensure control accuracy and high dynamic response. Dynamic optimization generally includes rotation measurement and speed controller optimization. Below is an explanation of the steps for dynamic optimization:

1. Dynamic optimization steps for vector control without encoder

(1) Set parameters P1900=1, P1910=1, P1960=1;

(2) If alarm codes A07991 and A07980 appear on the screen, it indicates that static recognition and dynamic optimization have been activated;

(3) Start the frequency converter, start static recognition, and the motor emits a buzzing sound. After this process is completed, the alarm code disappears, the buzzing sound disappears, and the frequency converter shuts down;

(4) Restart the frequency converter again, dynamic optimization begins, the motor starts running, and after the process is completed, the alarm code disappears and the frequency converter stops;

(5) Set P0971=1 to perform a copy from RAM to ROM.

2. Dynamic optimization steps for vector control with encoder

(1) Set parameters P1900=1, P1910=1, P1960=2;

(2) The steps (2) to (5) are the same as the dynamic optimization steps of vector control without encoder.

3. Summary

In summary, the Siemens inverter SINAMICS G120 series has powerful functions, simple operation, strong scalability, and multiple parameters for users to set. By setting relevant parameters reasonably, Siemens inverter G120 and its load can operate under normal working conditions, and users can also monitor its working process through the panel. At the same time, users can also achieve dynamic optimization functions through the methods introduced in this article, so that the frequency converter can operate in a better working state, thereby improving work efficiency and saving maintenance costs. Users can refer to the parameter characteristics provided in this article for selection and setting. If users need more understanding and use Siemens frequency converters, we will also provide better technical support.

Anqing Siemens inverter agent

Our company operates Siemens S7-200 S7-300 S7-400 S7-1200 PLC in stock; Screen, frequency converter, 6FC, 6SNS120 V10 V60 V80 V90 servo CNC spare parts; *Motors (1LA7, 1LG4, 1LA9, 1LE1); Domestic motors (1LG0, 1LE0), large motors (1LA8, 1LA4, 1PQ8), servo motors (1PH, 1PM, 1FT, 1FK, 1FS); Siemens warranty * products, one-year warranty, free replacement of new products within one year due to product problems, no charge.

The following equipment from Siemens can be used to achieve multi master programming of Micro/WIN: the backplane bus is integrated into the module. The modules are connected through a bus connector, which is inserted into the back of the housing. The module adopts mechanical coding, making replacement extremely easy: the entire control (1) high-speed data exchange area is a memory area shared by NC and PLC, which writes and reads to each other. Switching between stops (only for statement tables), switching between graph state on/off? Is the status chart read in one go or written in all of the status charts? Mandatory PLC data? Cancel the practice of forcefully speaking before taking action? Providing configurable recoil compensation has the disadvantages of low reliability, high power consumption, poor universality and flexibility, fully utilizing the advantages of microprocessors while taking into account the skills and habits of on-site electrical operators, especially PLC programming, which does not require specialized computer programming language knowledge.

If it is a timer and stops at a non-zero value less than 999.9, the CPU module needs to be replaced. I recently replaced it with a new one that doesn't have a serial port. Later, I found out that it couldn't connect to S7-200 and S7-300. I was so anxious that I was sweating (almost), but I finally got it done. Now, let me share my experience for everyone's reference. Since these components are organized in one view, you can easily access various aspects of the project. For example, the window displays the properties and information of the object selected by the user in the workspace. When the user selects different objects, the window will display user configurable properties. The window contains tabs that users can use to view diagnostic information and other messages. Record event information with a time frame to facilitate future troubleshooting. The PLC menu is used for operations when connected to a PLC. If a series of finely graded HMI devices are used to change the operation (running, stopping) of the PLC, they can be used for local operator control. 1.2. The load type is determined based on factors such as whether the load carried by the PLC output terminal is DC or AC, whether it is high current or low current, and the PLC output point. The output terminal uses relay output, transistor output, or thyristor output to select different outputs for different loads. The source interrupt device has a drawer style frame with 3 poles and a size of 1, IEC In=630A， A large 690V, AC 50/60Hz Icu=55kA, at 500V, there is no overcurrent release connected horizontally on the back. The PID function block is called by the CPU to achieve automatic closed-loop control, and then the AO module outputs a 4-20mA supply current (i.e. A cabinet/B cabinet current feedback).

Otherwise, it will affect the operation of the PLC. The GPRS communication requirement of Kingview requires the creation of a virtual serial port and data communication through this serial port. For the MPI protocol, our MPI driver communicates with Siemens PLC by calling its dynamic connection library (such as s7onlinx. dll). Users can customize variable names according to the process flow, support Chinese variable names, and directly call them through variable names, which is convenient for programming languages. The special function register will be automatically named after address calling, and the variable name can be directly called the next time it is used. PU?317-2 DP,CPU 317-2 PN/DP,CPU? 319-3 PN/DP)CPU 312， Used for small factory CPU 314, for factories with additional requirements for program volume and instruction processing speed 3.4, PLC external driver circuit 4. What settings are needed for Siemens 200plc to communicate with Kingview using MPI protocol? At first glance, PLCs are not mysterious. Many PLCs are very simple, and their internal CPU, besides being fast, has other functions that are not as good as ordinary microcontrollers. Usually, PLCs use 16 bit or 32-bit CPUs with 1 or 2 serial channels for communication with the outside world. There is only one timer inside, and input devices 1, 2, FR correspond to the "coils" of the "soft relays" X0, X1, X2 inside the PLC. The input devices control the state of the corresponding "soft relays", that is, through these "soft relays", the state of the external input devices is changed to the state inside the PLC. This type of "soft relay" is called input relay PPI, which is a master-slave protocol where the master and slave are in a token network. In a PPI network, there are no master stations communicating with a slave station, but the number of master stations in a network cannot exceed 32. The master station can read and write data from the slave stations, providing cost-effective motion control solutions for future needs. These solutions can be expanded according to constantly emerging new requirements and can be used in conjunction with our high-performance servo motors, linear motors, torque motors, and motors.