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Summary of Contents for PI P-843
- Page 1 P843M0001EN ‒ 2/23/2021 User Manual P-843 PRELOADED PIEZO ACTUATORS 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
Scope of Delivery.....................10 Overview......................11 Suitable Electronics..................11 Unpacking........................13 Installation......................... 14 Avoiding Mounting Errors................14 Mounting the P-843 and Connecting to a Protective Earth Conductor..15 Fixing the Load....................16 Connecting the P-843..................17 Startup and Operation....................18 Determining the Operating Parameters............18 7.1.1 Calculating the Effective Mass............18... - Page 3 CONTENTS P843M0001EN ‒ 2/23/2021 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
P843M0001EN ‒ 2/23/2021 About this Document Objective and Target Group This user manual contains the information needed for the intended use of the P-843. Basic knowledge of closed-loop systems, motion control concepts, and applicable safety measures is assumed. Other Applicable Documents The devices and software tools that are mentioned in this documentation are described in separate manuals. -
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
2 ABOUT THIS DOCUMENT P843M0001EN ‒ 2/23/2021 Information Additional information on the P-843 that can affect your application. Figures For better understandability, the colors, proportions and degree of detail in illustrations can deviate from the actual circumstances. Photographic illustrations may also differ and must not be seen as guaranteed properties. -
Page 8: Safety
Safety Intended Use The P-843 is a laboratory device as defined by DIN EN 61010-1. It is intended for indoor use and use in an environment that is free of dirt, oil, and lubricants. In accordance with its design, the P-843 is intended for the following applications: ■... -
Page 9: User Manual
► Add all information from the manufacturer such as supplements or technical notes to the user manual. ► If you give the P-843 to a third party, also include this user manual as well as other relevant information provided by the manufacturer. -
Page 10: Product Description
Figure 1: Type plate of the P-843 1. Data matrix code (example; contains the serial number) 2. Product number (example) 3. Serial number (example), individual for each P-843 Meaning of the position (counting from the left): 1 = internal information,... -
Page 11: Overview
Arrow: Positive direction of motion of the tip Suitable Electronics The P-843 must be connected to suitable electronics that provide the voltages necessary for operating and if required, evaluate the signals from the position sensor. The following electronics are suitable:... - Page 12 4 PRODUCT DESCRIPTION P843M0001EN ‒ 2/23/2021 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...
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Page 13: Unpacking
5 UNPACKING P843M0001EN ‒ 2/23/2021 Unpacking NOTICE Destruction of the P-843 due to mechanical overload! Mechanical forces can destroy the P-843. ► Avoid knocks that affect the P-843. ► Do not drop the P-843. Unpacking the P-843 1. Unpack the P-843 with care. -
Page 14: Installation
6 INSTALLATION P843M0001EN ‒ 2/23/2021 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-843 And Connecting To A Protective Earth Conductor
C: Wrong: Torsion due to torque Mounting the P-843 and Connecting to a Protective Earth Conductor The protective earth for the P-843 is connected as follows: ■ Mounting hole in the base of the P-843 ■ Suitable, conductive screw ■ The underlying surface connected to the protective earth conductor Tools and Accessories ■... -
Page 16: Fixing The Load
If the protective earth conductor is missing or not properly connected, risk of dangerous touch voltages on the P-843 in the event of malfunction or failure of the system. If there are touch voltages, touching the P-843 can lead to minor injury due to electric shock. -
Page 17: Connecting The P-843
► Do not screw the piezo actuator tight at both ends. Fixing the Load 1. Use the open-end wrench to hold the tip of the P-843 in place. 2. Tighten the nut to secure the load on the tip. 3. Remove the open-end wrench from the tip. -
Page 18: Startup And Operation
"Maximum Ratings" (p. 29). Peak and average output current of the electronics: electronics used (p. 11) for operating the P-843 must meet the following requirements: ■ The electronics can provide the required current. See "Calculating the Power Requirement for Sinusoidal Operation" (p. -
Page 19: Calculating The Maximum Operating Frequency Of The Loaded Piezo Actuator
7 STARTUP AND OPERATION P843M0001EN ‒ 2/23/2021 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 In the following calculation, the maximum permissible operating temperature of the piezo... -
Page 20: Starting And Operating The P-843
If the protective earth conductor is missing or not properly connected, risk of dangerous touch voltages on the P-843 in the event of malfunction or failure of the system. If there are touch voltages, touching the P-843 can lead to minor injury due to electric shock. - Page 21 The permanent application of a high voltage to piezo actuators leads to a considerable reduction in the lifetime of the piezo ceramic. ► When the P-843 is not being used (e.g., to ensure temperature stability of the electronics), discharge (p. 22) ►...
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Page 22: Discharging The P-843
Reconnecting a charged P-843 to electronics during operation can cause a mechanical impulse that will damage the P-843. ► Do not pull the connecting cable of the P-843 out of the electronics during operation. ► If the connecting cable of the P-843 is accidentally pulled out of the electronics during operation: Switch off the electronics before you reconnect the P-843. - Page 23 1. Set the piezo voltage to 0 V on the electronics. Discharging a P-843 not Connected to the Electronics 1. Insert the P-843'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
✓ Auxiliary Materials Required ■ Soft, lint-free cloth ■ Mild cleaning agent or disinfectant If you have any questions on the auxiliary materials recommended for the P-843, contact our customer service department (p. 27). NOTICE Short-circuiting due to cleaning fluid penetrating the housing! Cleaning fluid penetrating the P-843’s housing can short-circuit the actuator and drive... -
Page 25: Troubleshooting
9 TROUBLESHOOTING P843M0001EN ‒ 2/23/2021 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). ► Readjust the sensor's zero-point (see manual for Zero shifting of the position sensor for the following reasons: the electronics). -
Page 26: Transportation
29). 2. Pack the P-843 in the original packaging. 3. If the P-843 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
P843M0001EN ‒ 2/23/2021 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
** 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. M O T I O N | P O S I T I O N I N G... -
Page 29: Maximum Ratings
Specifications for vacuum versions can differ. 12.2 Maximum Ratings P-843 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,... - Page 30 12 TECHNICAL DATA P843M0001EN ‒ 2/23/2021 Area of application For indoor use only Maximum altitude 2000 m above msl Air pressure 1100 hPa to 100 hPa Relative humidity Highest relative humidity 80 % for temperatures up to 31 °C Decreasing linearly to 50 % relative humidity at 40 °C Storage temperature -20 °C to 80 °C Transport temperature...
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Page 31: Dimensions
12.4 Dimensions Figure 7: Dimensions of the P-843 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 P843M0001EN ‒ 2/23/2021 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 14.1.2 Sensor Connector Figure 9: Sensor connector: LEMO FFA.0S.304.CLAC32 Signal Function... -
Page 34: Eu Declaration Of Conformity
15 EU DECLARATION OF CONFORMITY P843M0001EN ‒ 2/23/2021 EU Declaration of Conformity An EU Declaration of Conformity was issued for the P-843 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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