Related Manuals for Rockwell Automation Allen-Bradley DRIVES HEADQUARTERS Flying Start PowerFlex 755
Summary of Contents for Rockwell Automation Allen-Bradley DRIVES HEADQUARTERS Flying Start PowerFlex 755
- Page 1 All manuals and user guides at all-guides.com Flying Start PowerFlex 755 AC Drives For Classroom Use Only!
- Page 2 In no event will Rockwell Automation, Inc., or any of its affiliate or subsidiary companies (hereinafter “Rockwell Automation”) be responsible or liable for any indirect or consequential damages resulting from the use or application of the Products described in this Documentation.
-
Page 3: Table Of Contents
All manuals and user guides at all-guides.com Intro Steps Contents Contents ......................................3 Before you begin ..................................... 4 About this lab ....................................4 Tools & Prerequisites ..................................4 Network Setup ....................................5 About the PowerFlex 755 DHQ Demo Box ........................... 6 Drive Setup –... -
Page 4: Before You Begin
All manuals and user guides at all-guides.com Before you begin Please review the following information before starting this lab. About this lab This session provides you with an opportunity to explore the Flying Start features of the PowerFlex 755 AC Drive. In this session you will: ... -
Page 5: Network Setup
All manuals and user guides at all-guides.com Network Setup Ethernet Connections PF755 Ethernet Port Set IP Address of PowerFlex 755 to 192.168.1.30 by setting the IP address switches. Hundreds – 0 Tens – 3 Ones – 0 Motor with Flywheel attached 5 of 19... -
Page 6: About The Powerflex 755 Dhq Demo Box
All manuals and user guides at all-guides.com About the PowerFlex 755 DHQ Demo Box 6 of 19... -
Page 7: Drive Setup - Reset Defaults
All manuals and user guides at all-guides.com Drive Setup – Reset Defaults Use the steps below to reset the drive to its default settings. 1. Press the ‘Folders’ button on the HIM keypad. The button is located on the bottom row of the HIM Keypad (shown circled in the left image below). Pressing the ‘Folders’ button changes the HIM screen display to the Folders screen (see right image below). -
Page 8: Drive Setup - Auto Tune And Configuration Parameters
All manuals and user guides at all-guides.com Drive Setup – Auto Tune and Configuration Parameters Use the settings below to auto tune the drive, and configure certain parameters for the lab. Connect to the Drive using Connected Components Workbench 1. Open Connected Components Workbench using the icon on the desktop. 2. -
Page 9: Configuring Drive Parameters
All manuals and user guides at all-guides.com Configuring Drive Parameters 1. Select the Parameters button to view the parameters for the PowerFlex 755 drive. 2. Using the Group drop down list, expand Motor Control and select Motor Data. 3. Fill in the following parameters with the values found on the motor nameplate at this station. Motor NP Volts ... - Page 10 All manuals and user guides at all-guides.com 5. In the Group drop down menu, expand Drive Cfg and select Preferences. Change the following parameters: 300 – Speed Units – RPM 301 – Access Level - Expert 6. In the Group drop down menu, expand Speed Control, select Speed Reference and change the following parameters: 545 –...
- Page 11 All manuals and user guides at all-guides.com Auto Tune Follow the steps below to Auto Tune the Drive. 1. Using the Group drop down list, expand Motor Control and select Autotune, then change the Autotune value to Rotate Tune. Be sure to press Enter to confirm the Autotune value change. 2.
-
Page 12: Flying Start
All manuals and user guides at all-guides.com Flying Start The Flying Start feature is used to start an already rotating motor. When a drive is started in normal mode, it will apply a frequency of 0 Hz to the motor and then ramp up to the desired frequency. If the motor is already rotating, the drive will try to force the motor to stop, which will generate large currents, which will cause an overcurrent fault. - Page 13 All manuals and user guides at all-guides.com 5. For 162 - DI Fwd Reverse, change the values to the following: Port 7 2 – Input 2 6. Verify this change on the HIM module, by watching the display while flipping the IN 2 switch on the demo box. The HIM will display F, then R, as well as an arrow change when flipping the switch back and forth.
-
Page 14: Demo
All manuals and user guides at all-guides.com Demo In this demonstration, you will see what happens if a motor that is able to rotate without power is commanded to start by the drive. 1. Press the Start button on the HIM module of the drive. 2. -
Page 15: Sweep Flying Start - Forward
All manuals and user guides at all-guides.com Sweep Flying Start – Forward The Sweep option for Flying Start utilizes a different method of finding the motor’s speed. Use the steps below to configure the drive for this option, then explore the results of that configuration. 1. -
Page 16: Sweep Flying Start - Reverse
All manuals and user guides at all-guides.com Sweep Flying Start – Reverse In some applications, it is possible that the shaft of the motor will be found to be rotating in reverse without power applied. Use the steps below to explore how Sweep Flying Start will address that situation. 1. - Page 17 All manuals and user guides at all-guides.com Changed Ki parameter value In the chart below, we see that the frequency trace has a more gradual slope (encircled in red). The drive will take more time to detect the motor at this Ki value – 1000. Changed Kp parameter values 17 of 19...
- Page 18 All manuals and user guides at all-guides.com In the chart below, we see two sweep procedures, paying close attention to the current trace in blue. Notice that in the procedure on the left, the Kp value is set to 25, which results in a deeper dip in current when the motor has been detected.
- Page 19 All manuals and user guides at all-guides.com Notes Publication CE-DM253-EN-P — Sept 2015 Copyright© 2014 Rockwell Automation, Inc. All rights reserved. 19 of 19...