SIEMENS 6SE7036-5GK84-1JC2 Frequency Converter

6SE7036-5GK84-1JC2 is a high-performance inverter produced by Siemens, which is widely used in various industrial automation fields. This inverter not only inherits the traditional advantages of Siemens products, but also further optimizes and improves its performance and application range.

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Product Introduction

A basic unit is a complete PLC. When the number of control points does not meet the needs, an expansion unit can be connected. The characteristics of the integral structure are very compact, small in size, low in cost and easy to install. Combined The combined structure of the programmable controller is to divide the various components of the PLC system into several modules according to their functions, such as CPU module, input module, output module, power module, etc. The functions of each module are relatively simple, but the types of modules are becoming more and more abundant. For example, some programmable controllers, in addition to some basic I/O modules, also have some special function modules, such as temperature detection module, position detection module, PID control module, communication module, etc. The characteristics of the combined structure of the PLC are that the CPU, input and output are all independent modules. The module size is uniform, the installation is neat, the I/O point selection is free, and the installation, debugging, expansion and maintenance are convenient. Stacked The stacked structure combines the advantages of the compactness, small size and easy installation of the integral structure and the flexible matching and neat installation of the I/O points of the combined structure. It is also composed of a combination of various units. Its characteristics are that the CPU is an independent basic unit (consisting of the CPU and certain I/O points), and other I/O modules are expansion units. No base plate is used during installation, only cables are used to connect the units, and each unit can be stacked one by one. Make the system flexible in configuration and compact in size.

What are the common faults and corresponding countermeasures of Siemens soft starters in daily applications?
The following analyzes the common faults and corresponding countermeasures of soft starters in daily applications:
1. During the debugging process, the start-up phase failure occurs, the soft starter fault light is on, and the motor does not respond. The cause of the fault may be:

① When the starting method adopts the live mode, the operation sequence is incorrect. (The correct operation sequence should be to send the main power first and then the control power)

② The power supply is missing, and the soft starter protection is activated. (Check the power supply)

③ The output end of the soft starter is not connected to the load. (The soft starter can work normally only after the output end is connected to the load)

Siemens 6SE7036-5GK84-1JC2 Product Manual

Advantages of Siemens PLC module:
Reliable
PLC does not require a large number of active components and wiring electronic components. Its wiring is greatly reduced. At the same time, the system maintenance is simple and the maintenance time is short. PLC adopts a series of reliability design methods for design. For example: redundant design. Power-off protection, fault diagnosis and information protection and recovery. PLC is a control device specially designed for industrial production process control. It has a simpler programming language and more reliable hardware than general computer control. A simplified programming language is used. The programming error rate is greatly reduced.

Easy to operate
PLC has high operability. It has the characteristics of simple programming, convenient operation, easy maintenance, etc., and it is generally not easy to make operational errors. The operation of PLC includes program input and program change operation. The input of the program can be directly connected to the display, and the operation of changing the program can also be directly searched or program searched according to the required address number or contact number, and then changed. PLC has a variety of programming languages ​​​​available for use. The ladder diagram is close to the electrical schematic diagram. It is easy to master and understand. The self-diagnosis function of PLC reduces the maintenance skills requirements of maintenance personnel. When the system fails, maintenance personnel can quickly find the fault location through hardware and software self-diagnosis.

Flexible
PLC uses ladder diagram, Boolean mnemonics, function table diagram, function module and statement description programming language. The diversity of programming methods makes programming simple and expands the application surface. The operation is very flexible and convenient, and it is very easy to monitor and control variables.

Siemens PLC S7-300 series PLC installation and precautions:

1. The auxiliary power supply is small and can only drive low-power equipment (photoelectric sensors, etc.);

2. Generally, PLCs have a certain number of occupied points (that is, empty address terminals), so do not connect the wires;

3. PLC has I/O response delay problems, especially in fast response devices.

4. The output has relay type and transistor type (suitable for high-speed output), and the output can directly carry light load (LED indicator, etc.);

5. The input/disconnection time should be greater than the PLC scanning time;

6. There is no protection in the PLC output circuit, so a fuse or other protective device should be used in series in the external circuit to prevent the load short circuit from damaging the PLC;

7. Do not connect the AC power cord to the input terminal to avoid burning the PLC;

8. The grounding terminal should be grounded independently and not connected in series with the grounding terminal of other equipment. The grounding wire cut surface should not be less than 2mm2;

9. The input and output signal lines should be routed separately as much as possible, and should not be in the same pipeline or bundled with the power line to avoid interference signals and malfunctions; the signal transmission line uses a shielded line and the shielded line is grounded; to ensure the reliability of the signal, the input and output lines are generally controlled within 20 meters; the extension cable is susceptible to noise and electrical interference, and should be kept away from power lines, high-voltage equipment, etc. Siemens 6SE7036-5GK84-1JC2 Product Manual

Siemens 6SE7036-5GK84-1JC2 Product Manual

According to the different functions of PLC, PLC can be divided into three categories: low-end, mid-range, and *.
Low-end PLC has basic functions such as timing, counting, logical operation, shifting, self-diagnosis, monitoring, etc. It can also have a small amount of analog input/output, data transmission, arithmetic operation and comparison and communication functions. It is mainly used for single-machine control systems with logic control, sequential control or a small amount of analog control. In addition to the functions of low-end PLC, mid-range PLC also has strong analog input/output, data transmission and comparison, arithmetic operation, remote I/O, number system conversion, subroutine and communication networking functions; some can also add PID control, interrupt control and other functions, which are suitable for complex control systems.

The programmable controllers produced by Siemens (SIEMENS) in Germany are also widely used in my country, and are used in metallurgy, chemical industry, printing production lines and other fields. Siemens' PLC products include LOGO, S7-200, S7-1200, S7-300, S7-400, S7-1500, etc. Siemens S7 series PLCs are small in size, fast in speed, standardized, have network communication capabilities, stronger functions, and high reliability. S7 series PLC products can be divided into micro PLCs (such as S7-200), PLCs with small-scale performance requirements (such as S7-300), and PLCs with medium and high performance requirements (such as S7-400).

* In addition to the functions of mid-range PLCs, PLCs also add matrix operations, signed arithmetic operations, square root operations, bit logic operations, tabulation and table transfer, and other special function functions. * PLCs have stronger communication and networking functions and can be used for large-scale process control or to form distributed network control systems, thereby realizing factory automation.
2. According to the structural form of PLCs, PLCs can be divided into two categories: modular and integral. Siemens 6SE7036-5GK84-1JC2 Product Manual
The modular PLC makes each component of the PLC into several separate modules, such as I/O modules, power modules (some are included in the CPU module), CPU modules and various functional modules. The modular PLC consists of a frame or baseboard and various modules, and the modules are installed on the sockets of the frame or baseboard, as shown in the figure. The characteristics of this modular PLC are flexible configuration, and different scale systems can be selected according to needs. It is easy to assemble and easy to expand and maintain. Large and medium-sized PLCs generally adopt a modular structure.

Siemens 6SE7036-5GK84-1JC2 Product Manual

The programmable controller is generated by the needs of modern production, and the classification of programmable controllers must also meet the needs of modern production.
Generally speaking, programmable controllers can be classified from three perspectives. The first is to classify according to the control scale of the programmable controller, the second is to classify according to the performance of the programmable controller, and the third is to classify according to the structural characteristics of the programmable controller. Siemens 6SE7036-5GK84-1JC2 Product Manual

The integral structure is generally used for small PLCs. The integral PLC is a CPU, power supply, I/O interface and other components are all installed in one chassis, as shown in the figure. It has the characteristics of compact structure, low price and small size. The integral PLC consists of expansion units with different I/O points and basic units (also known as host). The expansion unit only has I/O and power supply, but no CPU; the basic unit has I/O interface, CPU, expansion port connected to I/O expansion unit, and interface connected to programmer or EPROM writer. The basic unit and the expansion unit are generally connected with a flat cable. The integral PLC can also be equipped with special function units, such as position control unit, analog unit, etc., to expand its functions.
Some PLCs combine the characteristics of the integral type and the modular type to form the so-called stacked PLC. The CPU, power supply, I/O interface, etc. of the stacked PLC are also independent modules, but they are connected by cables, and the modules can be stacked layer by layer. In this way, not only can the system be flexibly configured, but it can also be made compact.

 

High-speed motor control DSP: Adopts TI's new generation of high-speed motor control DSP and innovatively uses a three-core processing technology platform to ensure that complex vector calculations are fully realized.

 

Non-PG vector control: A new generation of non-PG vector control, using a motor model algorithm, enables open-loop torque control to be implemented with a closed-loop algorithm. The torque response time is 10ms, and the steady-state accuracy is ≤5%. The speed ratio can reach 1:200, and the steady-state speed accuracy is 0.2%. 0.5Hz can output 180% of the rated torque.

 

PG vector control: Closed-loop torque control, supports online switching of torque and speed control, and realizes zero-servo control of the inverter. 0Hz can output 180% of the rated torque, the steady-speed accuracy can reach 0.02%, and the dynamic response time is 10ms.

 

Tri-contamination paint treatment: All standard products are treated with tri-contamination paint. At the same time, for occasions where humidity or dust exceeds the standard, protection enhancement measures can also be provided to meet the requirements of long-term stable operation in harsher environments.

 

Overcurrent, overvoltage, overload suppression and stall prevention functions: Complete overcurrent, overvoltage, overload suppression and stall prevention functions ensure that the equipment can operate reliably in various harsh environments.

 

New generation Infineon IGBT modules: The first to use the new generation Infineon IGBT modules, with higher reliability.

 

Wide voltage range design: Wide voltage range design, adaptable to different power grid environments.

 

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