Chuzhou Siemens inverter agent

Chuzhou 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.

Chuzhou Siemens inverter agent

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.

Huaibei Siemens inverter agent

Siemensfrequency converterModel and Parameters 1:MicroMaster420

　　MicroMaster420 is a new generation of modular design multifunctional standard frequency converter. Its user-friendly interface makes your installation, operation, and control as flexible and convenient as playing a game. The new IGBT technology, powerful communication capabilities, precise control performance, and high reliability all make control a pleasure.

1. Main features

200V-240V ± 10%, single-phase/three-phase, AC, 0.12kW-5.5kW; 380V-480V ± 10%, three-phase, AC, 0.37kW-11kW; Modular structural design with multiple flexibility; Standard parameter access structure, easy to operate.

2. Control function

Linear v/f control, square v/f control, programmable multi-point setting v/f control; Flux current control (FCC) can improve dynamic response characteristics; New IGBT technology, digital microprocessor control;

Three digital inputs, one analog input, one analog output, and one relay output; Integrated RS485 communication interface, optional PROFIBUS-DP communication module/Device Net template; Has 7 fixed frequencies, 4 jump frequencies, programmable; Capture and restart function;

It has the function of "automatic restart" when the power supply disappears or malfunctions;

A flexible ramp function generator with smooth starting and ending segments;

Fast current limiting (FCL) to prevent unnecessary tripping during operation;

There are DC braking and composite braking methods to improve braking performance;

3. Protection function

The overload capacity is 150% of the rated load current, with a duration of 60 seconds;

Overvoltage and undervoltage protection;

Inverter over temperature protection;

Ground fault protection, short circuit protection;

I2t motor overheat protection;

Motor overheating protection using PTC connected through digital terminal;

Implement parameter linkage using PIN numbers;

Locking motor protection to prevent stall protection.