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Preloaded piezo actuators (vacuum versions)
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- Contents
- Table of Contents
- Troubleshooting
- Bookmarks
Table of Contents
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Table of Contents
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Legal Information
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About this Document
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Objective and Target Group
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Other Applicable Documents
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Explanation of Symbols
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Typographic Conventions
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Symbols Used
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Figures
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Downloading Manuals
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Safety
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Intended Use
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General Safety Instructions
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Organizational Measures
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User Manual
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General Personnel Qualification
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Product Description
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Model Overview
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Product Labeling
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Type Plate
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Scope of Delivery
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Overview
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Suitable Electronics
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Accessories
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Unpacking
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Installation
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Avoiding Mounting Errors
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Mounting the P-840.XXV and Connecting to a Protective Earth Conductor
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Fixing the Load
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Connecting the P-840.XXV
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Startup and Operation
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Determining the Operating Parameters
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Calculating the Effective Mass
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Calculating the Maximum Operating Frequency of the Loaded Piezo Actuator
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Calculating the Forces that Occur During Dynamic Operation
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Calculating the Power Requirement for Sinusoidal Operation
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Starting and Operating the P-840.XXV
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Discharging the P-840.XXV
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Maintenance
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Cleaning
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Troubleshooting
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Transportation
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Customer Service Department
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Technical Data
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Specifications
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Maximum Ratings
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Ambient Conditions and Classifications
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Dimensions
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Old Equipment Disposal
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Appendix
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Pin Assignment
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14.1.1 Voltage Connector
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EU Declaration of Conformity
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P840M0002EN ‒ 1/29/2021
User Manual
P-840.XXV PRELOADED PIEZO ACTUATORS (VACUUM VERSIONS)
M O T I O N | P O S I T I O N I N G
Table ofContents
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Table of Contents
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Summary of Contents for PI P-840.XXV Series
- Page 1 P840M0002EN ‒ 1/29/2021 User Manual P-840.XXV PRELOADED PIEZO ACTUATORS (VACUUM VERSIONS) M O T I O N | P O S I T I O N I N G...
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Page 2: Table Of Contents
CONTENTS P840M0002EN ‒ 1/29/2021 Contents Legal Information......................4 About this Document....................5 Objective and Target Group................5 Other Applicable Documents................5 Explanation of Symbols..................5 2.3.1 Typographic Conventions..............6 2.3.2 Symbols Used..................6 Figures........................ 7 Downloading Manuals..................7 Safety..........................8 Intended Use...................... 8 General Safety Instructions................8 Organizational Measures.................. - Page 3 CONTENTS P840M0002EN ‒ 1/29/2021 Maintenance.......................24 Cleaning......................24 Troubleshooting......................25 10 Transportation......................26 11 Customer Service Department................. 27 12 Technical Data......................28 12.1 Specifications....................28 12.2 Maximum Ratings................... 29 12.3 Ambient Conditions and Classifications............29 12.4 Dimensions...................... 31 13 Old Equipment Disposal................... 32 14 Appendix........................33 14.1 Pin Assignment....................33 14.1.1 Voltage Connector................
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Page 4: Legal Information
With regard thereto, Physik Instrumente (PI) GmbH & Co. KG reserves all rights. The use of any text, images and drawings is permitted only in part and only when indicating the source. -
Page 5: About This Document
(p. 7) at www.pi.ws. Explanation of Symbols This chapter explains the symbols and markings used by PI in their user manuals. M O T I O N | P O S I T I O N I N G... -
Page 6: Typographic Conventions
Start > Settings Menu path in the PC software (example: to open the menu, Start and Settings must be clicked successively) Command line or a command from PI's General Command Set (GCS) POS? (example: command to get the axis position) Device S/N... -
Page 7: Figures
(p. 27). Downloading Manuals 1. Open the website www.pi.ws. 2. Search the website for the product number (e.g., P-882) or the product family (e.g., PICMA® bender). 3. Click the corresponding product to open the product detail page. -
Page 8: Safety
The P-840.xxV must be operated with suitable electronics (p. 11) from PI. The electronics are not in the scope of delivery of the P-840.xxV. The P-840.xxV may not be used for purposes other than those stated in this user manual. -
Page 9: Organizational Measures
► Always keep this user manual available with the P-840.xxV. The latest versions of the user manuals can be downloaded (p. 7) at www.pi.ws. ► Add all information from the manufacturer such as supplements or technical notes to the user manual. -
Page 10: Product Description
4 PRODUCT DESCRIPTION P840M0002EN ‒ 1/29/2021 Product Description Model Overview Actuators without sensor, vacuum compatible Product number Description P-840.10V Preloaded piezo actuator, 15 µm travel range, 1000 N / 50 N, vac- uum compatible to 10 P-840.20V Preloaded piezo actuator, 30 µm travel range, 1000 N / 50 N, vac- uum compatible to 10 P-840.30V Preloaded piezo actuator, 45 µm travel range, 1000 N / 50 N, vac-... -
Page 11: Scope Of Delivery
4 PRODUCT DESCRIPTION P840M0002EN ‒ 1/29/2021 Meaning of the position (counting from the left): 1 = internal information, 2 and 3 = year of manufacture, 4 to 9 = consecutive numbers 4. Warning and conformity symbols (old equipment disposal (p. 32), CE mark (p. -
Page 12: Accessories
4 PRODUCT DESCRIPTION P840M0002EN ‒ 1/29/2021 Product number Description E-503 Piezo amplifier module, 3 channels, -30 to 130 V E-505 Piezo amplifier module, 1 channel, -30 to 130 V E-610 Piezo amplifier / servo controller, 1 channel, -30 to 130 V E-617 High-power piezo amplifier, 1 channel, -30 to 130 V E-621... -
Page 13: Unpacking
► Avoid knocks that affect the P-840.xxV. ► Do not drop the P-840.xxV. Information At PI, all parts are cleaned before assembly. Afterwards, the P-840.xxV is wipe-cleaned again and then shrink-wrapped twice in vacuum-compatible film. Unpacking the P-840.xxV 1. Put powder-free gloves on. -
Page 14: Installation
6 INSTALLATION P840M0002EN ‒ 1/29/2021 Installation Avoiding Mounting Errors Piezo actuators may only be loaded axially. The following figures intend to help you to avoid mounting errors. Figure 3: Not tightly screwed at both ends and no angles A: Wrong: Angular error at the tip B: Right: Axial loading of the actuator C: Wrong: The actuator is screwed tight at both ends Figure 4: Ball tips or flexures for decoupling lateral forces and bending forces... -
Page 15: Mounting The P-840.Xxv And Connecting To A Protective Earth Conductor
6 INSTALLATION P840M0002EN ‒ 1/29/2021 Figure 5: No lateral forces or torques A: Wrong: Shearing force due to lateral force B: Right: Axial loading of the actuator C: Wrong: Torsion due to torque Mounting the P-840.xxV and Connecting to a Protective Earth Conductor The protective earth for the P-840.xxV is connected as follows: ■... -
Page 16: Fixing The Load
6 INSTALLATION P840M0002EN ‒ 1/29/2021 CAUTION Risk of electric shock if the protective earth conductor is not connected! If the protective earth conductor is missing or not properly connected, risk of dangerous touch voltages on the P-840.xxV in the event of malfunction or failure of the system. If there are touch voltages, touching the P-840.xxV can lead to minor injury due to electric shock. -
Page 17: Connecting The P-840.Xxv
► Connect the P-840.xxV only to suitable electronics from PI (p. 11). ► Use cables from PI only to connect the P-840.xxV to the electronics. Connecting the P-840.xxV 1. Connect the P-840.xxV's voltage plug to the voltage socket on the electronics. -
Page 18: Startup And Operation
7 STARTUP AND OPERATION P840M0002EN ‒ 1/29/2021 Startup and Operation Determining the Operating Parameters Limiting factors for the operation of the piezo actuator: ■ Resonant frequency: The operating frequency may not exceed one third of the resonant frequency of the loaded piezo actuator. -
Page 19: Calculating The Maximum Operating Frequency Of The Loaded Piezo Actuator
7 STARTUP AND OPERATION P840M0002EN ‒ 1/29/2021 2. Determine the additional load M. 3. Calculate the effective mass m of the unloaded piezo actuator and m ' of the loaded piezo actuator using the formulas in the figure above. 7.1.2 Calculating the Maximum Operating Frequency of the Loaded Piezo Actuator Information... -
Page 20: Starting And Operating The P-840.Xxv
Operating voltage (peak-to-peak) [V] Voltage difference between positive and negative peak voltage Starting and Operating the P-840.xxV Tools and Accessories Electronics from PI (p. 11) ■ Requirements You have read and understood the general safety instructions (p. ✓... - Page 21 7 STARTUP AND OPERATION P840M0002EN ‒ 1/29/2021 CAUTION Burning due to hot surface! The surface of the P-840.xxV and the surroundings can heat up during operation. Touching the P-840.xxV and surrounding parts can result in minor injuries from burning. ► Make sure that the hot P-840.xxV and the surrounding parts cannot be touched. NOTICE Destruction of the piezo actuator due to electric flashovers Using the P-840.xxV in environments that increase the electrical conductivity can lead to the...
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Page 22: Discharging The P-840.Xxv
1. Start up the electronics (see the user manual for the electronics). 2. Configure the electronics for the P-840.xxV during startup. If you are using a digital controller from PI, run the PC software and select the entry in the positioner database that matches the P-840.xxV exactly. - Page 23 1. Set the piezo voltage to 0 V on the electronics. Discharging a P-840.xxV not Connected to the Electronics 1. Insert the P-840.xxV's voltage connector into the switched-off electronics from PI and maintain the connection for a few seconds. M O T I O N | P O S I T I O N I N G...
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Page 24: Maintenance
8 MAINTENANCE P840M0002EN ‒ 1/29/2021 Maintenance The P-840.xxV is maintenance-free. Cleaning Requirements You have disconnected the P-840.xxV from the electronics. ✓ The P-840.xxV is discharged (p. 22). ✓ Auxiliary Materials Required ■ Disposable powder-free gloves ■ Soft, lint-free cloth ■ Suitable cleaning agent or disinfectant (e.g., alcohol, isopropyl or acetone) If you have any questions on the auxiliary materials recommended for the P-840.xxV, contact customer service department (p. -
Page 25: Troubleshooting
9 TROUBLESHOOTING P840M0002EN ‒ 1/29/2021 Troubleshooting No or limited motion Cable not connected correctly ► Check the cable connections. Excessive load ► Do not exceed the maximum push/pull capacity according to the specifications (p. 28). ► Contact our customer service depart‐ Piezo actuator is depolarized due to over- heating ment (p. -
Page 26: Transportation
10 TRANSPORTATION P840M0002EN ‒ 1/29/2021 Transportation Preparing the P-840.xxV for Transportation 1. Pay attention to the ambient conditions and classifications (p. 29). 2. Pack the P-840.xxV in the original packaging. 3. If the P-840.xxV is to be sent, use a stable outer box. M O T I O N | P O S I T I O N I N G... -
Page 27: Customer Service Department
P840M0002EN ‒ 1/29/2021 Customer Service Department For enquiries and orders, contact your PI representative or send us an email. If you have any questions concerning your system, provide the following information: ■ Product and serial numbers of all products in the system ■... -
Page 28: Technical Data
E-831 * The resolution of the system is only limited by the noise of the amplifier and measuring technology because PI piezo actuators are free of friction. ** Dynamic small-signal stiffness is approx. 30 % higher. Housing / tip material: Stainless steel. -
Page 29: Maximum Ratings
12 TECHNICAL DATA P840M0002EN ‒ 1/29/2021 12.2 Maximum Ratings P-840.xxV piezo actuators are designed for the operating data specified in the table below. Additional information on the maximum ratings table ■ Maximum operating frequency without load, without considering thermal aspects, column A: The value corresponds to one third of the resonant frequency of the unloaded piezo actuator. - Page 30 12 TECHNICAL DATA P840M0002EN ‒ 1/29/2021 Area of application For indoor use only Maximum altitude 2000 m above msl Air pressure 1100 hPa to 100 hPa 1 hPa to 10 Relative humidity Highest relative humidity 80 % for temperatures up to 31 °C Decreasing linearly to 50 % relative humidity at 40 °C Storage temperature...
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Page 31: Dimensions
12 TECHNICAL DATA P840M0002EN ‒ 1/29/2021 12.4 Dimensions Figure 7: Dimensions of the P-840.xxV Dimensions in mm. Note that the decimal places are separated by a comma in the drawings. The exact position of the wrench flats on the tip is not defined, i.e., the tip and base can be offset from each other at any angle with respect to the wrench flats. -
Page 32: Old Equipment Disposal
In order to fulfil the responsibility as the product manufacturer, PI undertakes environmentally correct disposal of all PI equipment free of charge, if it was made available to the market after August 13, 2005. Any old PI equipment can be sent free of charge to the following address: Physik Instrumente (PI) GmbH &... -
Page 33: Appendix
14 APPENDIX P840M0002EN ‒ 1/29/2021 Appendix 14.1 Pin Assignment 14.1.1 Voltage Connector Figure 8: Voltage connector: LEMO FFA.00.250.CTAC22 Signal Function Inner contact Input Piezo voltage 0 to 100 V Connector shell / Input Piezo voltage ground cable shield M O T I O N | P O S I T I O N I N G... -
Page 34: Eu Declaration Of Conformity
15 EU DECLARATION OF CONFORMITY P840M0002EN ‒ 1/29/2021 EU Declaration of Conformity An EU Declaration of Conformity was issued for the P-840.xxV in accordance with the following European directives: ■ Low Voltage Directive ■ EMC Directive ■ RoHS Directive The standards applied for certifying conformity are listed below. ■...
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