Siemens S7-300 manual Installing the components, Installing and wiring the hardware

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3Installing and wiring the hardware

3Installing and wiring the hardware

3.2 Installing the components

In this section, we show you how to:

•Install and ground the mounting rail

•Install the modules on the mounting rail

•Insert the front panel connector

Installing and grounding the mounting rail

1.Screw the mounting rail to the subsurface. Use two M6 screws for this.

2.Connect the mounting rail to the ground wire.

The prescribed minimum cross-section for the cable to the protective conductor is 10 mm2.

Note the following information when installing the mounting rail:

•Make sure to maintain a clearance of at least 40 mm above and below the mounting rail. This is needed to satisfy the requirements for thermal conditions (heat dissipation and ventilation of the module) and to facilitate the installation (mounting and removing, wiring).

•If the subsurface is a grounded metal plate or a grounded device panel, make sure you have a low resistance connection between the mounting rail and the subsurface. This produces a uniform reference potential.

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SIMATIC S7-300 Getting Started for First Time Users Getting Started, 04/2007, 6ZB5310-0NC02-0BA0

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Contents Order No. 6ZB5310-0NC02-0BA0 04/2007SIMATIC S7-300 Getting Started for First Time Users Qualified Personnel Safety GuidelinesDanger Disclaimer of Liability Prescribed UsageTrademarks Page Contents 7 Congratulations1 Welcome To accomplish this, you will perform the following tasks 1 Welcome ValidityPrerequisites You will need a microMaterials and tools Order numberQuantity SiemensVDE 0805 / EN 60950 / IEC 950 or VDE 0106 Part In addition, you will need the following componentsYou can also use the Page 2 Preparing the PC Open the installation file and follow the instructions Installing STEP 7 LiteInstalling the driver for the PC Adapter USB 2 Preparing the PC Setting the interface1. Open the dialog for setting the PG/PC interface Page 2 Preparing the PC Page 3 Installing and wiring the hardware 3.1 What components are required? 3.2 Installing the components 3 Installing and wiring the hardwareInstalling and grounding the mounting rail 2. Connect the mounting rail to the ground wireInstalling modules on the mounting rail 1. Install the power supply, tighten2. Install the CPU 312C ing the screws hand-tight3.3 Wiring the components Preparing the cables1. Cut the cables to the desired 2. Remove the insulation and pressWiring the CPU 312C and the power supply 1. Prepare the power cable2. Connect the power cable to the power supply 3. Secure the power cableWiring the momentary contact switches 1. Connect the momentary contact switches to the digital inputsWiring the motor 1. Connect the power supply for the digital inputs2. Wire the motor, if available. This step is optional Connecting the front panel connector Checking the line voltage setting 2. If necessary, change the switch position for the line voltage1. Connect the USB cable to the PC Adapter and your PC Connecting the CPU 312C and the PC3.4 Commissioning the hardware 2. Close the front panel Supplying power to the CPU 312C 1. Connect the supply cable to the supply system3 Installing and wiring the hardware 3. Set the main switch of the power supply to “ON” Testing the connections Page 4 Configuring the control in STEP 7 Lite 4.1 What is a STEP 7 Lite project? 4 Configuring the control in STEP 7 Lite 4.2 Opening a STEP 7 Lite projectOpening the “conveyor” project 1. Start STEP 7 Lite1. Create a new S7-300 station 4.3 Reproducing the module configuration in STEP 7 LiteCreating the module configuration 4 Configuring the control in STEP 7 Lite Page 4 Configuring the control in STEP 7 Lite Setting the parameters of the CPU 312C 1. Set the amount of retentive bit memory to “0”Saving the project 1. Save the project4.4 Establishing the online connection between the PC and CPU 312C Establishing the online connection1. Delete the old program blocks and configurations from the CPU 312C 4.5 Downloading and checking the module configuration to the CPU 312CPerforming a memory reset on the CPU 312C Downloading the module configuration to the CPU 312C Checking the module configuration Page 5 Opening the program on the PC 5.1 What is a program? 1. Open the program 5.2 Opening a program5 Opening the program on the PC Page 6 Performing a test run 6.1 Downloading the project to the CPU 312C 6 Performing a test run 1. Set the mode switch of the CPU 312C to “RUN”6.2 Starting the test run 2. Press the green momentary con- tact switch to start the motor The output LED 0.3 goes out The motor is switched offThe output LED 0.5 lights up. The input LED 0.3 lights up Page 7 Congratulations Want to know more about SIMATIC S7-300? Contact us 8 Additional information 8.1 Diagnostics / correction of errors 8.2 Additional documentation 8 Additional informationName of manual DescriptionService & Support on the Internet 8.3 SIMATIC Technical SupportPage 8 Additional information

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