Siemens LOGO! 0BA7 Manual 

Simple Applications - Optimum Motor Speed Control Simulated Application with S7-1200 for LOGO! and SINAMICS V20 Set 23 https://support.industry.siemens.com/cs/ww/en/view/23753479 Siemens Industry Online Support ...

2 © Siemens AG 2014 All rights reserved Legal information Use of application examples Application examples illustrate the solution of automation tasks through an interaction of several components in the form of text, graphics and/or software modules. The application examples are a free service by Siemens AG and/or a subsidiary of Siemens AG (“Siemens”). They are non- binding and ...

Set23_RegSim Entry ID: 23753479, V2.3.S, 02/2014 3 © Siemens AG 2014 All rights reserved Table of Contents Legal information ..................................................................................................... 2 1 Task................................................................................................................. 4 1.1 Overview ....................................................................... ...

4 © Siemens AG 2014 All rights reserved 1 Task 1.1 Overview Introduction The features in the application will be explained with the example of an automation task so that they can be understood more easily. In an injection molding plant, the molded parts are cooled down to a certain final temperature by a water cooling system. Several water consumers are connected for cooling down up to three pa ...

5 © Siemens AG 2014 All rights reserved 2 Solution 2.1 Overview Schematic layout The following figure gives a schematic overview of the most important components of the solution: Figure 2-1 1 2 3 4 5 6 7 8 1 LOGO! Power 2 LOGO! logic module 3 LOGO! AM2 AQ 7 SIRIUS monitoring relay 5 SINAMICS V20 6 Asynchronous motor 8 Sensor for level monitoring 4 LOGO! TD 7 10 S7-1200 (PM, CPU, CSM) 10 11 ...

6 © Siemens AG 2014 All rights reserved integrated display of the LOGO! logic module, the setpoint pressure, the current pressure and the speed of the pump are displayed as bar diagrams. Advantages The solution presented here offers you the following advantages: • Cost-effective and stepless speed control • Simple combination of drive tasks with sensor and control functions by combining ...

7 © Siemens AG 2014 All rights reserved 2.3 Hardware and software components 2.3.1 Validity This Application is valid for: • LOGO! 0BA7 • SINAMICS V20 • STEP 7 as of V12 • S7-1200 2.3.2 Components used Note The cooling water system is designed for a 0.12 kW motor with a corresponding SINAMICS V20 frequency converter. Hardware components Table 2-1 No. Component No. Article number Not ...

8 © Siemens AG 2014 All rights reserved Configuration software/tools Table 2-3 Component No. Article number Note LOGO!Soft Comfort V7 1 6ED1058-0BA02-0YA1 2.4 Hardware and software components for the simulation of the controlled system Note With this component, it is possible to simulate the controlled system. The components listed here are needed in addition to the hardware listed in secti ...

9 © Siemens AG 2014 All rights reserved 2.5 Sample files and projects The following list includes all files and projects that are used in this example. Table 2-7 Component Note LOGO!Soft Comfort V7 – Program 23753479_Set23_RegSim_V23.lsc The zip-file contains: 23753479_Set23_RegSim_V23.zip STEP 7 V12 – Program 23753479_Set23_RegSim_V23.ap12 The zip-file contains: 23753479_Set23_RegSim_V ...

10 © Siemens AG 2014 All rights reserved 3 Operation 3.1 General overview Figure 3-1 PI P set P act + - ∆P + consumers 1,2 & 3 Q c - sensor Q P distance n Soll 3.2 Constantly controlling and adapting the pressure in the system Table 3-1 No. Function Comments 1. In order to provide the consumers in the cooling water system with a consistent pressure even under varying loads, a PI controll ...

11 © Siemens AG 2014 All rights reserved 3.3 Addressing the motor via an analog interface of the LOGO! Table 3-2 No. Function Comments 5. The setting value (0 to 10V) for the motor speed n setpoint is continuously transmitted by the LOGO! expansion module AM2 AQ to SINAMICS V20 and scaled into a frequency setpoint (0 to 50Hz) there. The lower and upper limit of the frequency setpoint depen ...

12 © Siemens AG 2014 All rights reserved 3.4 Monitor storage tanks and react to a dry run Table 3-3 No. Function Comments 1. To avoid the pump running dry in this cooling water system, a three-pole wire electrode is used for monitoring the water level in the storage tank. 2. For an electrode, the reference point (M), the minimum fill level (Min) and the maximum fill level (Max) are set. 3. ...

13 © Siemens AG 2014 All rights reserved 3.5 Simulation of the controlled system Table 3-4 No. Function Comments 1. With the S7-1200 PLC, the controlled system of this cooling water application can be simulated. This allows the application to be tested under almost real conditions without a complex set-up. 2. The S7-1200 PLC continuously calculates the pressure P actual and transmits it to ...

14 © Siemens AG 2014 All rights reserved 4 Installation This chapter shows the necessary steps to put the example into operation with the code from the download and the hardware list. Note The installation guidelines for LOGO!, SINAMICS V20 and S7-1200 always have to be observed. ! Warning Before installing the SINAMICS V20 and putting it into operation, please read all the safety inst ...

15 © Siemens AG 2014 All rights reserved The SIRIUS monitoring relay (4) is connected to a digital input of the LOGO! logic module. A three-pole wire electrode (8) is connected to the SIRIUS monitoring relay. In this set-up plan, the pressure measuring transducer (The SITRANS P pressure measuring transducer must be removes!) is replaced by a S7-1200, DC/DC/DC (1), which simulates the co ...

16 © Siemens AG 2014 All rights reserved 4.2 Software installation (download) This chapter describes the steps for the installation of the example code. Note The software examples are available on the HTML page from which you downloaded this document. The software examples are always assigned to the components used in the set and show their basic interaction. However, they are no real a ...

17 © Siemens AG 2014 All rights reserved No. Action Comments 7. Set the IP address at the LOGO!: See also LOGO! Manual \3\ 8. Navigate, if necessary with the LOGO! button  to the menu item “Date/Time” 9. Use the button sequence ESC and  to navigate to “Stop”. 10. Stop the program editing with the button sequence OK ,  and OK. 11. Navigate to “Network” with ...

18 © Siemens AG 2014 All rights reserved No. Action Comments 17. Set the operating mode of the LOGO! logic module to “RUN” by means of the symbol “Change LOGO! operating mode”. Installation of the STEP 7 program Table 4-4 No. Action Comments 1. Make sure all the components of STEP 7 and WinCC have been installed. See also Table 2-6: 2. Start STEP 7 (TIA Portal). 3. In STEP 7 (T ...

19 © Siemens AG 2014 All rights reserved No. Action Comments 6. Load the HW configuration and the program into the S7-1200 by means of the function “Extended download to device”. With a right-click on the station, you will reach the menu “Download to device > Hardware and software”. The window for the “Extended download” pops up. Set the type of the PG/PC interface to “PN/ ...

Set23_RegSim Entry ID: 23753479, V2.3.S, 02/2014 20 © Siemens AG 2014 All rights reserved 5 Configuration and Settings 5.1 Scaling analog values into physical values in the LOGO! Table 5-1 No. Function Comments 1. Coming and going analog values can be optionally scaled by means of the analog blocks so that the user can have real physical values (such as pressure, temperature, revs/min) displayed in the LOGO!. 2. Set the ...