如何实现S120 主从控制方案
西门子Ｓ１２０变频器在转炉中的应用
西门子Ｓ１２０变频器在转炉中的应用桂立波① 徐慧明（广东省阳春新钢铁有限责公司炼钢厂 广东阳春５２９６００）摘 要 采用西门子新一代变频器Ｓ１２０为核心来升级转炉倾动主从控制系统，通过组建新的控制方式来提高转炉控制的精度和平稳性。
系统中采用一台西门子ＣＵ３２０－２控制单元控制４台西门子功率单元，控制单元与功率单元通过ＣＬＩＱ连接，功率单元与ｐｌｃ通过ｐｒｏｆｉｂｕｓ ｄｐ连接。
实现通过一台西门子ＣＵ３２０－２控制单元控制４台西门子功率单元的主从控制方式实现多轴控制，极大的提高了机械传动的同步性，消除了同步差异性引起的变频报故带来的生产风险因子。
通过我们公司的实践表明采用一台控制单元实现多轴同步控制与老一代一对一通控制方式比对，无论是从控制方式、结构设计都优于前者。
关键词 变频器 转炉 倾动系统 主从控制中图法分类号 ＴＦ３ 文献标识码 ＢＤｏｉ：１０ ３９６９／ｊ ｉｓｓｎ １００１－１２６９ ２０２３ ０６ ０２７ＡｐｐｌｉｃａｔｉｏｎｏｆＳｉｅｍｅｎｓＳ１２０ＦｒｅｑｕｅｎｃｙＣｏｎｖｅｒｔｅｒｉｎＣｏｎｖｅｒｔｅＧｕｉＬｉｂｏ ＸｕＨｕｉｍｉｎｇ（ＳｔｅｅｌｍａｋｉｎｇＰｌａｎｔ，ＧｕａｎｇｄｏｎｇＹａｎｇｃｈｕｎＮｅｗＳｔｅｅｌＣｏ．，Ｌｔｄ．，Ｙａｎｇｃｈｕｎ５２９６００）ＡＢＳＴＲＡＣＴ ＴｈｅｎｅｗｇｅｎｅｒａｔｉｏｎｏｆＳｉｅｍｅｎｓｉｎｖｅｒｔｅｒＳ１２０ｉｓａｄｏｐｔｅｄｔｏｕｐｇｒａｄｅｔｈｅｃｏｎｖｅｒｔｅｒｔｉｌｔｉｎｇｍａｓｔｅｒ ｓｌａｖｅｃｏｎｔｒｏｌｓｙｓｔｅｍ，ａｎｄｔｈｅｐｒｅｃｉｓｉｏｎａｎｄｓｔａｂｉｌｉｔｙｏｆｃｏｎｖｅｒｔｅｒｃｏｎｔｒｏｌａｒｅｉｍｐｒｏｖｅｄｂｙｅｓｔａｂｌｉｓｈｉｎｇａｎｅｗｃｏｎｔｒｏｌｍｏｄｅ．Ｉｎｔｈｅｓｙｓｔｅｍ，ａＳｉｅｍｅｎｓＣＵ３２０ ２ｃｏｎｔｒｏｌｕｎｉｔｉｓｕｓｅｄｔｏｃｏｎｔｒｏｌ４Ｓｉｅｍｅｎｓｐｏｗｅｒｕｎｉｔｓ．ＴｈｅｃｏｎｔｒｏｌｕｎｉｔａｎｄｐｏｗｅｒｕｎｉｔａｒｅｃｏｎｎｅｃｔｅｄｔｈｒｏｕｇｈＣＬＩＱ，ａｎｄｔｈｅｐｏｗｅｒｕｎｉｔａｎｄｐｌｃａｒｅｃｏｎｎｅｃｔｅｄｔｈｒｏｕｇｈｐｒｏｆｉｂｕｓ ｄｐ．Ｔｈｅｍｕｌｔｉ ａｘｉｓｃｏｎｔｒｏｌｉｓｒｅａｌｉｚｅｄｔｈｒｏｕｇｈｔｈｅｍａｓｔｅｒ ｓｌａｖｅｃｏｎｔｒｏｌｍｏｄｅｏｆｃｏｎｔｒｏｌｌｉｎｇｆｏｕｒＳｉｅｍｅｎｓｐｏｗｅｒｕｎｉｔｓｂｙｏｎｅＳｉｅｍｅｎｓＣＵ３２０ ２ｃｏｎｔｒｏｌｕｎｉｔ，ｗｈｉｃｈｇｒｅａｔｌｙｉｍｐｒｏｖｅｓｔｈｅｓｙｎｃｈｒｏｎｉｚａｔｉｏｎｏｆｍｅｃｈａｎｉｃａｌｔｒａｎｓｍｉｓｓｉｏｎａｎｄｅｌｉｍｉｎａｔｅｓｔｈｅｐｒｏｄｕｃｔｉｏｎｒｉｓｋｆａｃｔｏｒｓｃａｕｓｅｄｂｙｆｒｅｑｕｅｎｃｙｃｏｎｖｅｒｓｉｏｎａｌａｒｍｃａｕｓｅｄｂｙｓｙｎｃｈｒｏｎｉｚａｔｉｏｎｄｉｆｆｅｒｅｎｃｅ．Ｔｈｅｐｒａｃｔｉｃｅｏｆｏｕｒｃｏｍｐａｎｙｓｈｏｗｓｔｈａｔｔｈｅｍｕｌｔｉ ａｘｉｓｓｙｎｃｈｒｏｎｏｕｓｃｏｎｔｒｏｌｕｓｉｎｇｏｎｅｃｏｎｔｒｏｌｕｎｉｔｉｓｓｕｐｅｒｉｏｒｔｏｔｈｅｏｌｄｇｅｎｅｒａｔｉｏｎｏｎｅ ｔｏ ｏｎｅｃｏｎｔｒｏｌｍｏｄｅ，ｂｏｔｈｉｎｔｅｒｍｓｏｆｃｏｎｔｒｏｌｍｏｄｅａｎｄｓｔｒｕｃｔｕｒｅｄｅｓｉｇｎ，ａｎｄｉｔｉｓｗｏｒｔｈｐｏｐｕｌａｒｉｚｉｎｇａｎｄａｄｏｐｔｉｎｇ．ＫＥＹＷＯＲＤＳ Ｆｒｅｑｕｅｎｃｙｃｏｎｖｅｒｔｅｒ Ｃｏｎｖｅｒｔｅｒ Ｔｉｌｔｉｎｇｓｙｓｔｅｍ Ｍａｓｔｅｒ ｓｌａｖｅｃｏｎｔｒｏｌ１ 前言西门子官方公布西门子６ＳＥ７０系列变频器于２０１１年１０月宣布全部停产，新一代的西门子Ｓ１２０变频器作为迭代产品已成为电气传动领域的主力军。
S120变频器主从控制4页
S120变频器主从控制Abstract: this paper introduces S120 inverter in master-slave control principle and realization method, and discusses the implementation methods of control characteristics.Keywords: master-slave control; DRIVE - CLIQ; ProfiBUS.在变频器的应用中，有很多场合需要进行主从控制，当一个传动设备是由两个或多个电机驱动的时候，就需要通过主从控制来分配各个电机间的负荷使其达到均匀平衡，以满足对传动点的控制精度。
一、主从控制的工作原理：主从应用中主传动是典型的速度控制，而从传动是速度或者转矩控制，一般情况下可分为：1、当主传动和从传动的电机轴为刚性连接时，从传动与主传动之间不能有速度差，从传动使用转矩控制，其工作时只负责输出一定比例的转矩以减少主传动的负荷，整个传动的速度控制由主传动来完成。
2、当主传动和从传动的电机轴通过传输带等设备柔性连接时，从传动与主传动之间允许有细微的速度差，从传动使用速度控制。
3、在一些特殊应用中从传动既需要速度控制，也需要转矩控制，原因是两个电机轴工作时有的时候是硬性连接，有的时候是柔性连接，一般有主从控制性能的变频器都有自由切换这两种控制方式的功能。
二、主从控制的实现方法主从控制的关键技术问题是如何把主传动的速度信号或转矩信号高速和精确地传送到从传动变频器，实现方法因产品规格型号不同会有所差别，并且在各种应用场合中由于传动控制精度的要求不同也可以通过不同的方法来实现，以下以西门子的SINAMICS S120变频器为例说明主从控制的几种实现方法及其控制特点。
在对变频器进行主从控制前，需要先对电机进行单机调试。
1．对于2个电机的主从控制，可以设置一个控制单元CU320-2DP，转矩给定可以通过DRIVE-CLIQ通讯在两个电机之间进行直接传输，大大提高了数据传输的可靠性和快速性。
S120如何实现本地远程控制切换
S120如何实现本地远程控制切换1 概述在使用SINAMICS S120驱动器控制伺服电机运行时，常常会需要切换不同的控制信号源。
比如在进行设检修或维护时，需要将设备由PLC通信控制切换到本地手动控制，而正常生产时，又需要从本地手动控制切换回由PLC通信控制。
对于这种控制需求，需要借助于S120驱动器中的指令数据组(CDS)的切换功能才能实现，本文为大家介绍具体的实现方法。
2 功能说明S120驱动器指令数据组由以下两部分组成:•控制命令的二进制互联输入（数字量信号），如ON/OFF使能（P0844）或JOG（P1055）等;•设定值的模拟量互联输入（模拟量信号），如速度设定值（P1070）或转矩限值（P1522,P1523）等。
通过以下参数来选择指令数据组：参数p0810 ~ p0811用于选择指令数据组，以二进制形式表示指令数据组的编号（0 ~ 3）：•p0810 BI:指令数据组选择CDS 位0；•p0811 BI:指令数据组选择CDS 位1。
如果选择了不存在的指令数据组，则当前的数据组保持生效。
选中的数据组由参数r0836 显示。
3 通过指令数据组切换实现本地/远程控制通过指令数据组切换来实现S120驱动器本地/远程控制的项目配置步骤如下：1)首先在驱动Configuration界面中，点击“Add CDS“来添加CDS指令数据组。
<图3-1 添加CDS指令数据组>2)在Command data sets选项卡，关联选择CDS指令数据组所需的数字量输入点：设置p0810=r722.4<图3-2 设置CDS指令数据组选择开关>3)在Control logic界面中，分别设置CDS:0和CDS:1的驱动启停信号源。
<图3-3 CDS指令数据组驱动启停信号源设置>4)在Speed setpoint界面中，分别设置：CDS:0的Main setpoint P1070来自通信报文（在初始调试时开启了“Extended setpoint channe l”）；CDS:1的Main setpoint P1070=r1024，速度给定为固定转速给定。
实现S120主从控制的方案全解
实现S120主从控制的方案全解S120主从控制是指在工业自动化系统中，通过一个主控制器（Master controller）对多个从设备（Slave device）进行统一控制和管理的一种方案。
下面将详细介绍S120主从控制的实现方案。
一、硬件设备方案：1.主控制器：选取一台性能强大的工控机或PLC作为主控制器，用于控制和管理整个系统。
主控制器可以连接各种输入输出设备，如传感器、执行器、显示器等。
2.从设备：每个从设备都配备一个控制器或PLC，用于实现该设备的独立控制和运行。
从设备之间通过通信模块与主控制器进行数据交互。
从设备可以是各种执行器，如电机、驱动器等。
3.通信模块：主控制器和从设备之间需要通过可靠的通信方式进行数据传输和命令下发。
可以选择常用的通信方式，如以太网、RS485等。
通信模块需具备高速传输和可靠性强的特点。
4.IO模块：主控制器和从设备之间的数据交互需要经过输入输出模块。
IO模块负责将输入信号与输出信号进行转换和传输，通常具备多个输入输出端口，可以与各种传感器和执行器进行连接。
5.传感器和执行器：系统中的传感器用于采集各种环境参数和设备状态，执行器用于实现各种动作。
根据实际需求选择合适的传感器和执行器，并与IO模块进行连接。
二、软件方案：1.主控制软件：主控制器上的软件主要负责整个系统的调度和控制。
其功能包括：接收从设备发送的数据，对从设备进行控制和配置，分配任务给从设备，处理异常情况等。
主控制软件需要具备良好的实时性和稳定性。
2.从设备控制软件：每个从设备上的控制软件可以根据具体应用需求编写。
主要功能是接收主控制器发送的命令、读取传感器数据、控制执行器运动等。
从设备控制软件还可以实现一些本地的逻辑判断和控制。
3.数据库系统：为了对系统的运行状态进行数据记录和分析，可以采用数据库系统来存储各种运行数据。
数据库系统可以记录从设备的状态、传感器数据、报警信息、故障记录等，以便于后期的查询和分析。
S120的本地远程控制
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该文档的文档编号：F1023（英文版）Two regulations promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of comprehensive strictly strategic plan, implementation in accordance with the rules and discipline to manage the party, strengthen inner-party supervision of major initiatives. The two regulations supporting each other, the < code > adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can see, enough to get a high standard; < rule > around the party discipline, disciplinary ruler requirements, listed as "negative list, focusing on vertical gauge, draw the party organizations and Party members do not touch the" bottom line ". Here, the main from four square face two party rules of interpretation: the first part introduces two party Revised regulations the necessity and the revision process; the second part is the interpretation of the two fundamental principles of the revision of laws and regulations in the party; the third part introduces two party regulations modified the main changes and needs to grasp several key problems; the fourth part on how to grasp the implementation of the two regulations of the party. < code > and < Regulations > revised the necessity and revised history of the CPC Central Committee the amendment to the Chinese Communist Party members and leading cadres honest politics several guidelines > and < Chinese Communist Party discipline and Punishment Regulations > column 1 by 2015 to strengthenparty laws and regulations focus. Two party regulations revision work lasted a Y ears, pooling the wisdom of the whole party, ideological consensus, draw historical experience, respect for the wisdom of our predecessors, which reflects the unity of inheritance and innovation; follow the correct direction, grasp the limited goals, adhere to the party's leadership, to solve the masses of the people reflect a focus on the problem. The new revision of the < code > and < rule >, reflects the party's 18 and the eighth session of the third, the spirit of the fourth plenary session, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the party's eighteen years comprehensive strictly practice. (a) revised two regulations of the party need of < the ICAC guidelines > in < in 1997 Leaders as members of the Communist Party of China clean politics certain criteria (Trial) > based on revised, the promulgation and implementation of January 2010, to strengthen the construction of the contingent of leading cadres play an important role. But with the party to manage the party strictly administering the deepening, has not been able to fully meet the actual needs. Content is too complicated, "eight prohibition, 52 are not allowed to" hard to remember, and also difficult to put into practice; the second is concisely positive advocated by the lack of prohibited provisions excessive, no autonomy requirements; the third is banned terms and discipline law, both with the party discipline, disciplinary regulationsrepeat and Criminal law and other laws and regulations repeat; the fourth is to "clean" the theme is not prominent, not for the existing problems, and is narrow, only needle of county-level leading cadres above. < rule > is in 1997 < Chinese Communist Party disciplinary cases (Trial) > based on revision, in December 2003 the promulgation and implementation, to strengthen the construction of the party play very important role. Along with the development of the situation, which many provisions have been unable to fully meet the comprehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law and other countries laws and regulations Repetition; two is the political discipline regulations is not prominent, not specific, for violation of the party constitution, damage the authority of Party Constitution of misconduct lack necessary and serious responsibility to pursue; third is the main discipline for the leading cadres, does not cover all Party members. Based on the above situation, need to < the criterion of a clean and honest administration > and < rule > the two is likely to be more relevant regulations first amendment. By revising, really put the authority of Party discipline, the seriousness in the party tree and call up the majority of Party members and cadres of the party constitution of party compasses party consciousness. (II) two party regulations revision process the Central Committee of the Communist Party of China attaches great importance to two regulations revision . Xi Jinping, general books recorded in the FifthPlenary Session of the eighth session of the Central Commission for Discipline Inspection, on the revised regulations < > made clear instructions. According to the central deployment, the Central Commission for Discipline Inspection from 2014 under six months begin study two regulations revision. The Standing Committee of the Central Commission for Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a special meeting to study two regulations revision, amendment clarifies the direction, major issues of principle, path and target, respectively held a forum will listen to part of the province (area) secretary of the Party committee, Secretary of the Discipline Inspection Commission, part of the central ministries and state organs DepartmentThe first party committee is mainly responsible for people, views of experts and scholars and grassroots party organizations and Party members. Approved by the Central Committee of the Communist Party of China, on 7 September 2015, the general office of the Central Committee of the Party issued a notice to solicit the provinces (autonomous regions, municipalities) Party, the central ministries and commissions, state ministries and commissions of the Party (party), the General Political Department of the military, every 3 people organization of Party of two regulations revision opinion. Central Commission for Discipline Inspection of extensive solicitation of opinions, careful study, attracting, formed a revised sent reviewers. In October 8 and October 12, Central Committee PoliticalBureau Standing Committee and the Political Bureau of the Central Committee After consideration of the two regulations revised draft. On October 18, the Central Committee of the Communist Party of China formally issued two regulations. Can say, two laws amendment concentrated the wisdom of the whole party, embodies the party. Second, < code > and < Regulations > revision of the basic principles of two party regulations revision work and implement the party's eighteen, ten eight plenary, the spirit of the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi Jinping important instructions on the revised < low political criterion > and < Regulations >, highlighting the ruling party characteristics, serious discipline, the discipline quite in front of the law, based on the current, a long-term, advance as a whole, with Bu Xiuding independent < rule > and < rule >. Main principle is: first, adhere to the party constitution to follow. The constitution about discipline and self-discipline required specific, awaken the party constitution of party compasses party consciousness, maintaining the authority of the constitution. General Secretary Xi Jinping pointed out that "no rules, no side round. Party constitution is the fundamental law, the party must follow the general rules. In early 2015 held the eighth session of the Central Commission for Discipline Inspection Fifth Plenary Session of the 16th Central Committee, Xi Jinping again pointed out that constitution is the party must follow the general rules, but also the general rules." the revisionof the < code > and < rule > is Method in adhere to the regulations established for the purpose of combining rule of virtue is to adhere to the party constitution as a fundamental to follow, the constitution authority set up, wake up the party constitution and party rules the sense of discipline, the party constitution about discipline and self-discipline specific requirements. 4 second is to adhere to in accordance with the regulations governing the party and the party. The Party of rule of virtue "de", mainly refers to the party's ideals and beliefs, excellent traditional style. The revised the < code > closely linked to the "self-discipline", insisting on the positive initiative, for all members, highlight the "vital few", emphasized self-discipline, focusing on the morality, and the majority of Party members and the ideological and moral standards. The revised < > Ji method separately, Ji, Ji Y an to Method, as a "negative list", emphasizing the heteronomy, focusing on vertical gauge. Is this one high and one low, a positive reaction, the strict party discipline and practice results transformation for the integration of the whole party to observe moral and discipline requirements, for the majority of Party members and cadres provides benchmarking and ruler. Third, insist on to. In view of the problems existing in the party at the present stage, the main problems of Party members and cadres in the aspect of self-discipline and abide by the discipline to make clearly defined, especially the party's eighteen years strict political discipline and political rules, organization and discipline andto implement the central eight provisions of the spirit against the four winds and other requirements into Disciplinary provisions. Not one pace reachs the designated position, focusing on in line with reality, pragmatic and effective. After the revision of major changes, major changes in the < code > and < rule > modified and needs to grasp several key problems (a) < code > < code > adhere to according to regulations governing the party and party with morals in combination, for at the present stage, the leadership of the party members and cadres and Party members in existing main problems of self-discipline, put forward principles, requirements and specifications, showing Communists noble moral pursuit, reflected at all times and in all over the world ethics from high from low 5 common requirements. One is closely linked to the "self-discipline", removal and no direct relation to the provisions of . the second is adhere to a positive advocate, "eight prohibition" 52 are not allowed to "about the content of the" negative list moved into synchronization amendment < cases >. Three is for all the party members, will apply object from the leadership of the party members and cadres to expand to all Party members, fully embodies the comprehensive strictly required. The fourth is prominent key minority, seize the leadership of the party members and cadres is the key, and put forward higher requirements than the ordinary Party members. Five is to simplify, and strive to achieve concise, easy to understand, easy to remember. The revised < code > is the ruling Party since the first insists ona positive advocate forAll Party members and the self-discipline norms, moral declaration issued to all members of the party and the National People's solemn commitment. > < criterion of a clean and honest administration consists of 4 parts, 18, more than 3600 words. After the revision of the < code >, a total of eight, 281 words, including lead, specification and Party member cadre clean fingered self-discipline norms, etc. Part 3 members low-cost clean and self-discipline, the main contents can be summarized as "four must" "eight code". Lead part, reiterated on ideal and faith, fundamental purpose, the fine traditions and work style, noble sentiments, such as "four must" the principle of requirements, strong tone of self-discipline, The higher request for 6 and supervised tenet, the foothold in permanent Bao the party's advanced nature and purity, to reflect the revised standards requirements. Members of self-discipline norms around the party members how to correctly treat and deal with the "public and private", "cheap and rot" thrifty and extravagance "bitter music", put forward the "four norms". Party leader cadre clean fingered self-discipline norms for the leadership of the party members and cadres of the "vital few", around the "clean politics", from civil servant of the color, the exercise of power, moral integrity, a good family tradition and other aspects of the leadership of the party members and cadres of the "four norms" < > < norm norm. "The Party member's self-discipline norms" and "party members and leading cadre clean fingered self-discipline norms," atotal of eight, collectively referred to as the "eight". "Four must" and "eight" of the content from the party constitution and Party's several generation of leaders, especially Xi Jinping, general secretary of the important discussion, refer to the "three discipline and eight points for attention" statements, and reference some embody the Chinese nation excellent traditional culture essence of epigrams. (2) the revised regulations, the main changes in the revised Regulations > to fully adapt to the strictly requirements, reflects the according to the regulations governing the law of recognition of deepening, the realization of the discipline construction and Jin Ju. < rule > is party a ruler, members of the basic line and follow. And the majority of Party members and cadres of Party organizations at all levels should adhere to the bottom line of thinking, fear discipline, hold the bottom line, as a preventive measure, to keep the party's advanced nature and purity. 1, respect for the constitution, refinement and discipline. Revised < rule > from comprehensive comb physical constitution began, the party constitution and other regulations of the Party of Party organizations and Party discipline requirements refinement, clearly defined in violation of the party constitution will be in accordance with regulations to give the corresponding disciplinary action. The original 10 categories of misconduct, integration specification for political discipline, discipline, honesty and discipline masses Ji Law and discipline and discipline and other six categories, the content of < rule >real return to Party discipline, for the majority of Party members and listed a "negative list. 7 2, highlighting the political discipline and political rules. > < Regulations according to the stage of the discipline of outstanding performance, emphasizing political discipline and political rules, organization and discipline, in opposition to the party's leadership and the party's basic theory, basic line, basic program and basic experience, the basic requirement of behavior made prescribed punishment, increase the cliques, against the organization such as violation of the provisions, to ensure that the central government decrees and the Party of centralized and unified. 3, adhere to strict discipline in the law and discipline In front, Ji separated. Revised < Regulations > adhere to the problem oriented, do Ji separated. Any national law existing content, will not repeat the provisions, the total removal of 79 and criminal law, repeat the content of the public security management punishment law, and other laws and regulations. In the general reiterated that party organizations and Party members must conscientiously accept the party's discipline, die van comply with national laws and regulations; at the same time, to investigate violations of Party members and even criminal behavior of Party discipline and responsibility, > < Regulations distinguish five different conditions, with special provisions were made provisions, so as to realize the connection of Party discipline and state law. 4, reflect Wind building and anti-corruption struggle of the latest achievements. < rule > the party's eighteen yearsimplement the spirit of the central provisions of the eight, against the requirements of the "four winds" and transformation for disciplinary provisions, reflecting the style construction is always on the road, not a gust of wind. In the fight against corruption out of new problems, increase the trading rights, the use of authority relatives profit and other disciplinary terms. Prominent discipline of the masses, the new against the interests of the masses and ignore the demands of the masses and other disciplinary terms and make provisions of the disposition and the destruction of the party's close ties with the masses.Discipline to protect the party's purpose. 8 of these regulations, a total of three series, Chapter 15, 178, more than 24000 words, after the revision of the regulations a total of 3 series, Chapter 11, 133, 17000 words, divided into "general" and "special provisions" and "Supplementary Provisions" Part 3. Among them, add, delete, modify the provisions of the proportion of up to nearly 90%. 1, the general general is divided into five chapters. The first chapter to the regulations of the guiding ideology, principles and scope of application of the provisions, highlight the strengthening of the party constitution consciousness, maintenance the authority of Party Constitution, increase the party organizations and Party members must abide by the party constitution, Y an Centralized centralized, would examine at all levels of the amended provisions implementing and maintaining Party discipline, and consciously accept the party discipline,exemplary compliance with national laws and regulations. The second chapter of discipline concept, disciplinary action types and effects of the regulations, will be a serious warning from the original a year for a year and a half; increase the Party Congress representative, by leaving the party above (including leave probation) punishment, the party organization should be terminated its representative qualification provisions. The third chapter of the disciplinary rules of use prescribed in the discipline rectifying process, non convergence, not close hand classified as severely or heavier punishment. "Discipline straighten "At least eighteen years of five years, these five years is to pay close attention to the provisions of the central eight implementation and anti -" four winds ". The fourth chapter on suspicion of illegal party disciplinary distinguish five different conditions, with special provisions were made provisions, to achieve effective convergence of Party and country 9 method. < rule > the provisions of Article 27, Party organizations in the disciplinary review found that party members have committed embezzlement, bribery, dereliction of duty dereliction of duty and other criminal law act is suspected of committing a crime shall give cancel party posts, probation or expelled from the party. The second is < Regulations > Article 28 the provisions of Party organizations in the disciplinary review But found that party members are stipulated in the criminal law, although not involved in a crime shall be investigated for Party discipline and responsibility shouldbe depending on the specific circumstances shall be given a warning until expelled punishment. This situation and a difference is that the former regulation behavior has been suspected of a crime, the feeling is quite strict, and the latter for the behavior not involving crime, only the objective performance of the provisions of the criminal code of behavior, but the plot is a crime to slightly. < Regulations > the 29 provisions, Party organizations in the discipline review found that party members and other illegal behavior, affect the party's image, the damage to the party, the state and the people's interests, we should depend on the situation Seriousness given disciplinary action. The loss of Party members, seriously damaging the party's image of behavior, should be given expelled from the party. At this article is party member is in violation of the criminal law outside the other illegal acts, such as violates the public security administration punishment law, customs law, financial laws and regulations behavior. The fourth is < cases > Article 32 stipulates, minor party members and the circumstances of the crime, the people's Procuratorate shall make a decision not to initiate a prosecution, or the people's court shall make a conviction and exempted from criminal punishment shall be given within the party is removed from his post, probation or expelled from the party. Party members and crime, sheets were fined in accordance with For acts; the principal Ordinance amended the provisions of the preceding paragraph. This is the new content, in order to achieve Ji method effectiveconvergence. Five is < > the thirty third article 10 of the provisions, the Party member due to an intentional crime is sentenced to criminal law (including probation) sheets or additional deprivation of political rights; due to negligence crime and was sentenced to three years or more (excluding three years) a penalty, shall give expelled punishment. Due to negligence crime is convicted and sentenced to three years (including three years) in prison or be sentenced to public surveillance, detention, shall in general be expelled from the party. For the individual may not be expelled from the party, should control Approval. This is followed and retained the original > < Regulations the provisions of punishment party authorization rules and report to a level party organizations. For is "party members with criminal acts, and by the criminal punishment, generally should be expelled from the party". The fifth chapter of probationary Party member of the discipline and discipline after missing members of the treatment and punishment decisions, such as the implementation of the provisions, clear the related party discipline and punishment decision made after, for duties, wages and other relevant alteration formalities for the longest time. 2, sub sub section will the original regulations of10 categories of acts of violation of discipline integration revised into 6 categories, respectively, in violation of the punishments for acts of political discipline "in violation of discipline behavior of punishment" in violation of integrity of disciplinary action points "of violation punishments for actsof mass discipline" "the violation of work discipline, punishment" in violation of discipline of life behavior punishment "6 chapters. 3, annex" Supplementary Provisions "clear authority making supplementary provisions of, cases of interpretative organ, as well as regulations implementation time and retroactivity etc.. 11 (3) learning understanding > < regulations needs to grasp several key problems The first problem -- about the violation of political discipline behavior > < new ordinance chapter 6 the political discipline column for the six disciplines, that is the main opposition to Party leadership and the opposition of the basic theory, basic line, basic program and basic experience, basic requirements of misconduct made provisions of the disposition, especially the eighteen since the CPC Central Committee put forward the Yan Mingzheng treatment of discipline and political rules requirements and practical achievements transformation for Discipline article, increase the false debate central policies, cliques, against the organization review, make no discipline of the principle of harmony terms. These are the party's eighteen years in comprehensive strictly Process combined with the practice of rich content. (1) false debate the central policies and undermine the Party of centralized and unified the problem is made in accordance with the provisions of the party constitution. Constitution in general programme requirements adhere to democratic centralism is one of the requirements of the construction of the party must adhere to the four cardinal. Applicationof this principle is not only the party the basic organization principle and is also the mass line in party life, it requires that we must fully develop inner-party democracy, respect for the dominant position of Party members, safeguarding the Party member democratic rights, give full play to the enthusiasm and creativity of the party organizations at all levels and Party members, at the same time, also must implement the right concentration, ensure the party's mission < the chaos in unity and concerted action to ensure that the party's decision to get quickly and effectively implementing. The Party Central Committee formulated the major principles and policies, through different channels and ways, fully listen to the party organizations and Party members of the opinions and suggestions, but 12 is some people face to face not to say back blather "" will not say, after the meeting said, "" Taiwan does not say, and nonsense ", in fact, not only disrupt the people thought, some causing serious consequences, the damage to the Party of the centralized and unified, hinder the central policy implementation, but also a serious violation of the democratic system of principles. There is no doubt that shall, in accordance with the Regulations > 4 Specified in Article 6 to give the appropriate punishment. For did not cause serious consequences, to give criticism and education or the corresponding tissue processing. (2) about the destruction of the party's unity < New Regulations > the forty eighth to fifty second article, to damage Party's unity unified and violation of political discipline, punishment situationmade explicit provisions. Article 52 of the new "in the party get round group, gangs seek private gain, cliques, cultivate private forces or through the exchange of interests, for their own to create momentum and other activities to gain political capital, given a serious warning or withdraw from their party posts disposition; if the circumstances are serious, to give Leave a party to observation or expelled from the party. (3) on against the organization review of the provisions of the constitution, party loyalty honesty is party members must comply with the obligations. Members must obey the organization decision, shall not violate the organization decided encounters by asking questions to find organization, rely on the organization, shall not deceive the organization, against the organization. For example, after the investigation does not take the initiative to explain the situation, but to engage in offensive and defensive alliance, hiding the stolen money is against survey organization, is a violation of the behavior of political discipline. Article 24 of the original > < Regulations, although the provisions of the interference, hinder group review the behavior of the fabric can be severely or 13 Aggravated punishment, but did not put this kind of behavior alone as a discipline for qualitative amount of discipline. > < new regulations increase the Article 57, "anti organization review, one of the following acts, given a warning or serious warning; if the circumstances are relatively serious, giving removed from or placed on probation within the party post; if the circumstances are serious, give。
s120变频器在热轧卷取机中的应用
s120变频器在热轧卷取机中的应用作者：李颖斌来源：《中国科技纵横》2018年第08期摘要：本文介绍了唐钢1700热轧卷取机传动系统的结构与控制方案，通过对西门子SinamicsS120整流单元与变频装置的介绍，系统地阐述S120变频器的特性，及主从控制在本系统中的应用。
结合现场调试对速度环进行优化，确保传动系统可靠稳定运行。
关键词：S120变频器；卷取机；主从控制；矢量控制；速度调节优化中图分类号：TG333.2 文献标识码：A 文章编号：1671-2064（2018）08-0080-011 引言随着现代工业的快速发展，市场对热轧带钢产品的需求不断增大，2007年唐钢股份有限公司新建了1700热轧生产线，在热轧生产工艺中卷取机的自动化控制性能发挥着重要的作用。
本文就其传动系统的特点，结合西门子SINAMICS S120变频器特性，简单介绍了卷取机的控制结构及传动系统的控制方案，通过变频装置的主从控制实现两台电机同轴驱动的同步控制，整个系统在投入运行以来，工作稳定满足了热轧线工艺生产需要。
2 系统结构唐钢1700热轧生产线控制器采用的是西门子TDC控制系统，通过工业以太网与上位机及二级服务器通讯，以Profibus-DP通讯与传动控制系统及过程控制站进行数据交换，该生产线有两台卷取机，在正常生产作业时交叉作业，即一台卷取机卷取作业，另一台卷取机等待作业，因此应用西门子S120系列变频装置时，整流控制单元可按一台卷取机的电机容量进行选型，整流器选用的是带能量反馈的SLM系列整流单元，每台卷取机由两台电机来驱动，每台电机分别由一个S120系列逆变器控制，由于两台电机是同轴驱动，属于刚性连接，在两台变频器的同步控制上采用的是以CBE20模块作为通讯板，基于Profinet通讯的主从控制方式，保证了系统运行的快速性及同步性。
其控制结构如下图1所示。
3 S120变频器的特点SinamicsS120变频装置是西门子公司推出的全新的集v＼f控制、矢量控制及伺服控制于一体的驱动控制系统：（1）系统基本模块包括：整流模块，电机模块，控制单元，I/O模块，编码器模块等，这些模块可根据要求分别选配、安装，紧凑的模块化结构设计，大量节省了电气室空间。
s120抱闸控制说明
S120抱闸控制说明(总5页) -CAL-FENGHAI.-(YICAI)-Company One1-CAL-本页仅作为文档封面，使用请直接删除1 简单抱闸控制特点S120抱闸控制主要分为简单抱闸控制和扩展抱闸控制，可根据应用场合不同而灵活选用。
本文主要介绍简单抱闸控制。
S120 简单抱闸控制的特点主要有：• 通过顺序控制自动激活• 静态P1227（零速P1228）检测监控• 强制释放抱闸（p0855，p1215），包括有条件或无条件释放抱闸• 无条件关闭抱闸（p0858 = 1）• 取消“使能速度控制器”信号后的抱闸应用（p0856 = 0）2抱闸功能描述“简单抱闸控制”专门用于电机抱闸的控制。
当驱动不激活时，保持抱闸用于保护驱动装置，以免出现不希望的运动，如位能性的负载或垂直运行的负载出现的危险。
释放和保持抱闸的触发命令通过控制单元（CU）的DRIVE-CLiQ 传送至电机模块，直接把信号互连到电机模块上并进行监控。
然后电机模块执行动作并激活保持抱闸的输出。
可在SINAMICS S120/S150 参数手册（功能图2701，2704）中看到详细的顺序控制框图。
通过参数p1215可配置抱闸控制的运行规则，图1所示为简单抱闸控制的顺序图。
打开抱闸的过程：(1) 当符合启动条件后，控制单元发出ON命令，接触器开始闭合，设备开始预充电。
完成后，开始建立励磁；(2) 励磁完成后，打开抱闸的输出信号为1；(3) 此处还可以通过p0855=1强迫释放抱闸命令；(4) 打开抱闸的输出信号为1，r0899.12=1，可以控制抱闸装置。
此时电机并不会立即加速，否则会出现溜钩的现象；(5) 延迟时间p1216到达之后，电机立即加速，直到稳定状态。
p1216的时间需根据现场情况调节。
关闭抱闸的过程：(1) 当控制单元发出OFF命令后，电机速度开始下降；(2) 电机实际速度或设定速度小于p1226所设定的值；(3) 延迟p1227或p1228时间后，关闭抱闸的输出信号为1；(4) 此处还可以通过p0858 = 1强迫输出关闭抱闸命令；(5) 关闭抱闸的输出信号为1，r0899.13=1，可以控制抱闸装置。
S7_400控制S120实例
S7_400控制S120实例
1. 在PLC中硬件组态：
选中所组态的装置，其通讯设置为PZD-10/10。
（如下）
本实例是一个CU320带两台逆变器，所以通讯字应该再增加一组，右键点击，选中对象属性，点击“insert object”即可。
两台逆变器的通讯首地址如下：
2. 在PLC中编程：
创建OB1、FC1、FC2等程序块，在OB1中调用FC1、FC2，而SFC14、SFC15不需要建立，直接在FC1等中调用就可以自动出现。
（注：在DB块中要把所有用到的变量都建立，否则CPU会报内部故障）。
其他系统所需的块也相应建立。
OB程序如下：
FC1程序如下：
M0.0控制启动和停止；MW10为速度给定。
下图就是在程序中直接调用块SFC14，点击左栏的库“libraries”，在“system function blocks”中。
上图的“W#16#200”中的“200”是由逆变器的通讯首地址通过进制转换而来，如下
块SFC14的“RET_VAL”的值是调用块成功与否返回的值。
“P#DB1.DBX0.0BYTE 20”意思为指针指向存放数据的首地址，长度为20个字节。
3. 在逆变器中设置通讯：。
S120变频器在转炉倾动中的主从控制方案比较
１
引 言
机 有 时处于 电 动状 态 ， 有 时 处 于 发 电状 态 。实 际生
￥ １ ２ ０变 频器 是 西 门子 公 司推 出 的全 新 一 代 驱 动产 品 ， 可用 于 复 杂 的 高 端 应 用 ， 是 ６ Ｓ Ｅ ７ ０变 频 器 的升 级换 代产 品 ， 功能比６ Ｓ Ｅ ７ ０强 大 ， 应用比 ６ Ｓ Ｅ ７ ０
总第 ２ １ ４期
２ ０ １ ３年 第 ｌ ０期
河 北 冶全
ＨＥ ＢＥＩ Ｍ ＥＴＡＬＬ ＵＲＧＹ
Ｔｏ ｔ ａ ｌ ＮＯ ２１ ４
２ ０１ ３， Ｎｕ ｍｂｅ ｒ １ ０
Ｓ １ ２ ０变 频 器 在 转 炉 倾 动 中的 主从 控 制 方 案 比较
郭进 涛 ， 薛 辉
Ａｂｓ ｔ ｒ ａ ｃ ｔ ：Ｉ ｔ ｉ ｓ ｉ ｎ ｔ ｒ ｏ ｄ ｕｃ ｅ ｄ ｔ ｈｅ ｌ ｏ ａ ｄ ｐ ｒ ｏ ｐ ｅ ｒ ｔ ｙ ｉ ｎ ｃ ｏｎ ｖ ｅ ｒ ｔ ｅ ｒ ｔ ｉ ｌ ｔ ｉ ｎ ｇ， ｃ ｈａ ｒ ａ ｃ ｔ ｅ ｒ ｉ ｓ ｔ ｉ ｃ ｓ ｏｆ Ｓ ｉ ｅ ｍｅ ｎｓ Ｓ１ ２ ０ ｆ ｒ ｅ ｑ ｕｅ ｎｃ ｙ ｔ ｒ ａ ｎｓ ｆ ｏ ｒ ｍｅ ｒ ，ｄ ｒ ｉ ｖ ｅ ｃ ｏｎ ｆ ｉ ｇｕ ｒ ａ ｔ ｉ ｏ ｎ ａ ｎｄ ｃ ｏ ｎｔ ｒ ｏｌ ｐ ｌ ａ ｎ． Ｔｗ ｏ ｐ ｌ ａ ｎｓ ａ ｎｄ ｔ ｈ ｅ ｉ ｒ ｐ ｒ ａ ｃ ｔ ｉ ｃ ｅ ｍｅ ｔ ｈｏ ｄ ｓ ｆ ｏ ｒ Ｓ１ ２ ０ ｔ ｏ ｒ ｅ ａ ｌ ｉ ｚ ｅ ｍａ ｓ ｔ ｅ ｒ— ｓ ｌ ａ ｖｅ ｃ ｏ ｎ ｔ ｒ ｏ ｌ ａ ｒ ｅ ｐ ｒ ｅ ｓ ｅ ｎ ｔ ｅ ｄ ａ ｎ ｄ ｃｏ ｍｐ ａ ｒ ｅ ｄ ． Ｋｅ ｙ Ｗｏ ｒ ｄｓ：Ｓ １ ２ ０ ｒｅ ｆ ｑ ｕ ｅ ｎ ｃ ｙ ｒａ ｔ ｎｓ ｆ ｏ ｒ ｍｅ ｒ ；ｃ ｏ ｎｖ ｅ ｔｅ ｒ ｒ ；ｔ ｉ ｌ ｔ ｉ ｎ ｇ；ｍ ａ ｓ ｔ ｅ ｒ— ｓ ｌ ａ ｖ ｅ ｃ ｏｎ ｔ ｒ ｏｌ ；ｐ ｌ ａ ｎ；ｃ ｏｍｐａ ｒ ｅ
《西门子SINAMICS S120系统应用与实践》教学课件—04系统的伺服控制应用
S120伺服轴的程序步功能
使用程序步（Traversing blocks）功能，S120系统可以自动执行一个完整的定位程序，也可以实现由外部信 号触发的单步控制。
A——程序步的激活 B——程序步的停止条件 C——设置外部信号对程序步的控制 D——程序步的选择 E——打开程序步的编辑界面
S120伺服轴的MDI位置控制
S120系统的伺服控制应用
目录
1. S120的伺服控制 2. S120伺服轴的手动试运行 3. 伺服控制器的自动优化 4. S120伺服轴利用外部开关进行点动控制
5. S120伺服轴的设置回零 6. S120伺服轴的程序步功能 7. S120伺服轴的MD伺服控制应用中，应选择伺服轴。 · 伺服控制方式适用于精确的位置控制。 · 可通过向导，完成轴的DDS配置。
1——使能该轴 2——选择点动运行方式 3——设定速度及比率 4——启动该轴 5——点动运行 6——监控运行状态
伺服控制器的自动优化
· 伺服控制功能配置好之后需要进行电机的静态辨识、编码器调节、动态辨识、控制器优化等，其中静 态及动态辨识的过程与矢量控制时的类似 · 伺服控制模式下，动态辨识时电机容易飞车，所以不推荐进行该辨识。如果坚持要进行动态辨识，请 修改斜坡时间及最大速度，并通过修改p1959做只激活转动惯量的辨识！
S120伺服轴利用外部开关进行点动控制
为了防止运行时超出机械的极限位置而发生危险，伺服系统一般都设置有软限位，为防止软限位失效，在其外侧 还设置有硬限位。S120系统在伺服控制功能中也需要设置软硬限位。
A——软限位的激活 B——零点/参考点的设置状态 C——设置正反向软限位的位置值 D——激活硬限位 E—— 连 接 至 硬 限 位 的 外 部 开 关
S120使用说明
S120变频器的使用说明第一节STATER 软件的安装步骤第二节S120硬件结构说明第三节S120拓扑结构硬件连接及自动组态第四节PC与CU320的通讯第六节S120变频器的硬件配置第七节S120变频器的仿真运行第八节S120变频器辨识第九节S120变频器I/O定义及功能图第十节S120变频器自由块的使用第十一节S120变频器与s7 plc的通讯编制：王兵辉第一节STATER 软件的安装步骤1.必须把Starter_v4.3sp1安装软件放在根目录下2. 只需安装CD_1下的安装文件即可，后面的CD_2，CD_3跟着自动安装3.安装大约需要1.5小时第二节S120硬件结构说明1.1 CU3201.2 TB31第三节S120拓扑结构的硬件连接及自动组态1.主从装置的硬件拓扑结构主装置拓扑结构2.装置拓扑结构自动组态新版S120装置的拓扑结构具有自动组态功能，不需要手动组态，首先我们把存储卡插到CU320里面，在面板上会出现选择面板的版本号，我们选择正确的版本号（通常选择第一个），然后存储卡开始识别我们的面板，大约10分钟结束，接下来会让选择语言，我们选择“中文”，接下来出现“是否激活并联”，我们选择否，接下来出现选择控制方式“矢量或伺服”，我们选择矢量，最后自动载入语言及参数。
系统自动识别完毕后，各模块的指示灯都变成绿色，否则请检查硬件结构连接，最后我们通过面板把参数做一次永久保存，否则下次启动后系统还会自动识别拓扑结构。
注：存储卡不能拔出，否则会报故障，机卡不分离。
第四节PC与CU320的通讯1. PC与CU320之间串口通讯1.1建立一个新项目1.2选择在线连接单元1.3填写项目名称及保存位置1.4选择接口，PPI1.5自动插入驱动单元1.6配置结束1.7在线连接1.8选择所有连接内容1.9选择把参数上载到电脑上1.10选择把所有参数上载到电脑上1.11上载完成结束2. PC与CU320之间以太网通讯2.1建立一个新项目2.2选择在线连接单元2.3填写项目名称及保存位置2.4选择接口，TCP/IP BROADCOM 2.5自动插入驱动单元2.6配置结束2.7选择ACCESSIBLE NODES寻找装置IP地址2.8查看自动搜索到的IP地址2.9设置PC的IP地址，与装置IP必须在一个网段2.10打上对勾，选择接受。
实现S120 主从控制的方案
如何实现S120 主从控制方案1主从控制方案概述在变频器的实际使用过程中，经常由于工艺的要求或者变频器容量的限制，会采用一个传动设备是由两个或多个电机驱动共同配合工作的方案，这种情况下，各驱动电机之间需要保证相同的运行速度，以及转矩的平均分配，为此，我们需要在驱动电机的变频器上实现需要的速度及转矩分配控制要求，变频器的这种应用我们称之为主从控制应用。
针对主从控制应用的方案，我们通常在变频器上采用如下两种控制方法来实现：∙直接转矩分配∙速度偏差与转矩限幅1．1直接转矩分配直接转矩分配方案主要应用于电机之间是硬连接方式，如齿轮、同轴等，电机之间通过连接器保持相同的转速，如下图：图1在配置直接转矩控制方式时，需要将主机设定在速度模式工作，从机设定在转矩模式工作，将主机的转矩设定值作为从机的转矩给定值，这样保证系统运行时，从机转矩始终与主机一致，同时因为机械结构的原因，从机速度始终与主机相同，这样就完成了转矩的分配。
该方式的特点是，从机转矩始终跟随主机转矩，系统按照主机的速度环运行，转矩响应比较快。
1．2速度偏差与转矩限幅速度偏差与转矩限幅的方案主要应用于电机之间软连接方式，如皮带、绳索等，由于是柔性材料产生的耦合关系，电机之间需要有相同的运行速度，同时保证电机力矩的均匀分配，还要有防止连接断裂时的保护。
图2在速度偏差与转矩限幅方式时，主机从机都工作在速度模式，主从机的速度设定值相同，然后从机在此基础上附加+/- 5%-10%左右的速度偏差（与运行方向有关，附加速度大小由实际情况决定），将主机的转矩值连接到从机的转矩限幅上。
在启动后，由于速度偏差的存在，连接的材料迅速拉紧，从机的速度环饱和，输出的转矩受转矩限辐限制，从而保证从机的转矩跟随主机的转矩；从机速度受到连接的牵引，与主机速度相同。
当发生断带时，主从电机工作在各自的速度环模式下，不会发生飞车现象。
该模式的特点是，启动瞬间主机从机的速度环都起作用，张力的建立比较平缓，避免系统产生振荡。
S120负载平衡设置方法
S120负载平衡设置方法（测试OK）
当两台电机需要做负载平衡时，可以采用主从控制方式实现，主机采用速度控制，从机采用速度控制转矩限制，从机设定如下：
一、转矩限制设定
这里假设主机正转，从机反转的模式，程序里面依旧根据计算速度给主从驱动各自的速度，上图中各个位置描述：
1：P1522，这里设置成0%，即与主机同方向之转矩不输出（因为从机是反转），如果从机是正转这里就是主机的实际转矩设定点r79. 2：P1551，设置成1，也可以根据需要通过程序控制。
3：P1523，设置成主机的转矩设定点r79,需要与主机同向时且正转时设置为0.
4：P1525，设置成-100%，即取主机转矩的相反数，因为需要反转，如果设成100%的话不会运转。
具体设置可以根据实际使用灵活组合，只要做到就是同向同转矩，反向反转矩即可。
二、速度命令设定
需要将从机的速度高于主机才会起到作用，如果慢于主机，那么从机无法帮助输出负载拖动，反而成为主机的拖累。
图中设定通过实验，设定2处参数会有比较好的效果。
1：P1071，命令速度百分比，可以放大缩小来自于速度通道的命令数据，实际效果不是很好，慢速时不明显，高速时太快。
2：P1075：速度叠加。
设置成P2900或P2901，然后再把P2900设置成需要叠加的百分比，这个百分比是P2000的百分比，这个参数好处是数值固定。
三、故障屏蔽
因为设置了一个速度叠加，正常情况下从机有了负载后会跳F7900和F7902与堵转和速度误差过大之类的报警，统统放到P2118里面屏蔽之即可。
关于S120转矩控制的问题
关于S120转矩控制的问题？楼主2012-12-18 22:02:02给位大侠，请问S120中转矩控制的话，怎么控制转速？我看功能图转速限幅在速度控制器之前，转矩给定的话（P1503），速度会不会飞车？就像如果是速度控制转矩限幅，完全可以实现转矩限幅起到作用，达到想要的转矩，可是转矩控制我不是很理解引用收藏(2)“点赞”也能得经验值啦！1更多Zane至圣经验值: 19150发帖数: 11597精华帖: 151回复：关于S120转矩控制的问题？1楼2012-12-18 23:06:31这就是力的平衡关系，输出转矩大于阻力矩就加速，小于阻力矩就减速，等于就匀速或静止。
Zane 注册自动化系统工程师Always save before download引用收藏飞华侠士经验值: 1846发帖数: 444精华帖: 2回复：关于S120转矩控制的问题？2楼2012-12-31 23:25:19quote:以下是引用Zane在2012-12-18 23:06:31的发言：这就是力的平衡关系，输出转矩大于阻力矩就加速，小于阻力矩就减速，等于就匀速或静止。
转矩控制时速度无法控制,它时以转矩控制为第一目标,有可能是飞车.它有辅助的速度限制.防止飞车.引用收藏李文华侠圣经验值: 2554发帖数: 654精华帖: 17回复：关于S120转矩控制的问题？3楼2013-01-02 13:37:20quote:以下是引用飞华在2012-12-31 23:25:19的发言：quote:以下是引用Zane在2012-12-18 23:06:31的发言：这就是力的平衡关系，输出转矩大于阻力矩就加速，小于阻力矩就减速，等于就匀速或静止。
转矩控制时速度无法控制,它时以转矩控制为第一目标,有可能是飞车.它有辅助的速度限制.防止飞车.如果转矩设定大于负载转矩，电机的速度将一直上升到接近同步转速（转子不切割磁力线就不会有转矩），那能否在转矩模式下将最大速度或频率限制在额定转速以下的某个值？如何限制？引用收藏李文华侠圣经验值: 2554发帖数: 654精华帖: 17回复：关于S120转矩控制的问题？4楼2013-01-02 13:59:18我现在的理解是：如果将变频器输出的最高频率（如MM440的P1082）限制在30Hz，那么此时电机的同步转速就是30Hz对应的那个值，虽然给定转矩大于负载转矩，由于是异步电动机，这时的电机速度不可能超过30Hz对应的这个同步转速值（激活滑差补偿功能除外），但不能调速。
用S120实现盾构机刀盘主从控制的自动切换
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基于西门子S120的轧机传动系统的设计
基于西门子S120的轧机传动系统的设计马艳阳【摘要】介绍了西门子S120系列变频调速器在轧机传动系统中的应用,阐述了传动系统的整流回馈加逆变的共直流母线设计方案、特点以及调试方法,为今后轧机用交流传动设计提供了参考.【期刊名称】《装备制造技术》【年(卷),期】2014(000)012【总页数】3页(P61-63)【关键词】S120;交流传动系统;逆变器【作者】马艳阳【作者单位】陕西国防工业职业技术学院电子信息分院,陕西西安710300【正文语种】中文【中图分类】工业技术《装备制造技术》 2014 年第 12 期基于西门子 S120 的轧机传动系统的设计马艳阳（陕西国防工业职业技术学院电子信息分院，陕西西安 710300 ）摘要：介绍了西门予 S120 系列变频调速器在轧机传动系统中的应用，阐述了传动系统的整流回馈加逆变的共直流母线设计方案、特点以及调试方法，为今后轧机用交流传动设计提供了参考。
关键词：S120 ；交流传动系统；逆变器中图分类号： TG333文献标识码：B文章编号：1672-545X(2014)12-0061-03随着交流调速技术的发展和日趋成熟，交流传动有了更大的应用空间。
西门子全数字交流变频调速系统 SINAMICS家族中，G120 系列的变频器主要应用于风机、水泵、空压机等对控制精度要求不高的场合，SM150系列是中压产品，适合于高压大功率的场合。
轧机传动系统的电机电压等级为 AC690V ，电机功率最大为 1000kW ．不适合采用 SM1500 而 S120 系列属于低电压等级，适合电机功率不是很大的场合，具有控制性能好、可靠性高等优点，正好满足了轧机高品质、高精度的要求。
本文介绍一种基于西门子S120的交流变频轧机传动系统。
1轧机传动系统方案设计带材冷轧机一般为可逆轧机，设备主要由开卷机、左卷取机、主轧机、右卷取机等组成，在轧制过程中分开卷轧制和卷取轧制，在这两种轧制模式中主轧机的上、下辊驱动电机均工作在速度模式，而且过载倍数比较大；在开卷轧制时，开卷机和左或右卷取机工作，驱动电机均处于力矩模式，开卷机工作在发电状态，卷取机工作在电动状态；在卷取轧制时，开卷机不投人工作，左卷取机和右卷取机工作，一个工作在电动状态，一个工作在发电状态。
用S120实现盾构机刀盘主从控制的自动切换
用S120实现盾构机刀盘主从控制的自动切换王瑾;高伟贤;刘书兵;张欣;赵海峰【摘要】In order to reduce the shield machine fault downtime, improve production efficiency, the multi-motor-drive cutter head control system of tunnel boring machine was designed, which used S7 - 300 to be controller and S120 to be actuator. The specific requirements about the cutter drive motor were described. How to achieve the master-slave control of cutter head on tunnel boring machine through control group, and the load balanced distribution of transmission under master-slave control were discussed. How to use S120 to achieve the automatically switch of master-slave control on the cutter head of tunnel boring machine was described. This system achieved automatically switch of master-slave control on the cutter head of tunnel boring machine after being put into operation and the control worked well, which proved that the method can satisfy the requirements of the application on the tunnel boring machine.%为了减少盾构机的故障停机时间,提高生产效率,设计了以S7-300做控制器、S120为执行器的多机驱动的盾构机刀盘控制系统.描述了刀盘驱动对于电机控制的具体要求,并论述了通过控制分组,如何利用S120实现盾构机刀盘的主从控制、以及主从控制方式下传动的负倚平衡分配,阐述了如何用S120实现主从控制的自动切换.系统投入运行后,控制效果良好,实现了盾构机刀盘主从控制的自动切换,证明上述方法能很好地满足盾构机应用的要求.【期刊名称】《电气传动》【年(卷),期】2012(042)010【总页数】4页(P62-65)【关键词】盾构机;主从控制;负荷平衡【作者】王瑾;高伟贤;刘书兵;张欣;赵海峰【作者单位】北方重工集团有限公司,辽宁沈阳110141;全断面掘进机国家重点实验室,辽宁沈阳110141;北方重工集团有限公司,辽宁沈阳110141;北方重工集团有限公司,辽宁沈阳110141;北方重工集团有限公司,辽宁沈阳110141;北方重工集团有限公司,辽宁沈阳110141;全断面掘进机国家重点实验室,辽宁沈阳110141【正文语种】中文【中图分类】TP291 引言随着我国城市地下交通设施建设进程的加快，用盾构机进行施工已经达成共识。
实现S120 主从控制的方案
如何实现S120 主从控制方案1主从控制方案概述在变频器的实际使用过程中，经常由于工艺的要求或者变频器容量的限制，会采用一个传动设备是由两个或多个电机驱动共同配合工作的方案，这种情况下，各驱动电机之间需要保证相同的运行速度，以及转矩的平均分配，为此，我们需要在驱动电机的变频器上实现需要的速度及转矩分配控制要求，变频器的这种应用我们称之为主从控制应用。
针对主从控制应用的方案，我们通常在变频器上采用如下两种控制方法来实现：∙直接转矩分配∙速度偏差与转矩限幅1．1直接转矩分配直接转矩分配方案主要应用于电机之间是硬连接方式，如齿轮、同轴等，电机之间通过连接器保持相同的转速，如下图：图1在配置直接转矩控制方式时，需要将主机设定在速度模式工作，从机设定在转矩模式工作，将主机的转矩设定值作为从机的转矩给定值，这样保证系统运行时，从机转矩始终与主机一致，同时因为机械结构的原因，从机速度始终与主机相同，这样就完成了转矩的分配。
该方式的特点是，从机转矩始终跟随主机转矩，系统按照主机的速度环运行，转矩响应比较快。
1．2速度偏差与转矩限幅速度偏差与转矩限幅的方案主要应用于电机之间软连接方式，如皮带、绳索等，由于是柔性材料产生的耦合关系，电机之间需要有相同的运行速度，同时保证电机力矩的均匀分配，还要有防止连接断裂时的保护。
图2在速度偏差与转矩限幅方式时，主机从机都工作在速度模式，主从机的速度设定值相同，然后从机在此基础上附加+/- 5%-10%左右的速度偏差（与运行方向有关，附加速度大小由实际情况决定），将主机的转矩值连接到从机的转矩限幅上。
在启动后，由于速度偏差的存在，连接的材料迅速拉紧，从机的速度环饱和，输出的转矩受转矩限辐限制，从而保证从机的转矩跟随主机的转矩；从机速度受到连接的牵引，与主机速度相同。
当发生断带时，主从电机工作在各自的速度环模式下，不会发生飞车现象。
该模式的特点是，启动瞬间主机从机的速度环都起作用，张力的建立比较平缓，避免系统产生振荡。