PI P-88 Series User Manual
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PI P-88 Series User Manual

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PZ259E
P-88x/P-08x Piezo Actuator
User Manual
Version: 1.1.0
PI Ceramic GmbH, Lindenstrasse, 07589 Lederhose, Germany
Phone +49 36604 882-0, Fax +49 36604 882-4109, Email info@piceramic.com, www.piceramic.com
Date: 27.09.2021
This document describes the following products:
P-882 – P-888
PICMA® Stack multilayer piezo actuators
P-080
PICMA® Stack multilayer ring actuators with
inner hole
P-088
PICMA® Stack multilayer piezo actuators, round
cross section

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  • Page 1 PICMA® Stack multilayer piezo actuators P-080  PICMA® Stack multilayer ring actuators with inner hole P-088  PICMA® Stack multilayer piezo actuators, round cross section PI Ceramic GmbH, Lindenstrasse, 07589 Lederhose, Germany Phone +49 36604 882-0, Fax +49 36604 882-4109, Email info@piceramic.com, www.piceramic.com...
  • Page 2 © 2021 PI Ceramic GmbH, Lederhose, Germany. The text, photographs and drawings in this manual are protected by copyright. With regard thereto, PI Ceramic GmbH retains all the rights. Use of said text, photographs and drawings is permitted only in part and only upon citation of the source.

  • Page 3: Table Of Contents

    Contents About this Document Objective and Target Audience of this User Manual..........1 Validity for Custom Products ..................1 Symbols and Typographic Conventions..............1 Figures ........................2 Other Applicable Documents ..................2 Downloading Manuals ....................3 Safety Intended Use ......................5 General Safety Instructions ..................
  • Page 4 6.2.3 Calculating the Maximum Operating Frequency of the Loaded Piezo Actuator ....................... 37 6.2.4 Calculating the Forces that Occur During Dynamic Operation ....38 6.2.5 Calculating the Power Requirement for Sinusoidal Operation ....38 Operating the P-88x/P-08x ..................39 Discharging the P-88x/P-08x ..................39 Short-Circuiting the P-88x/P-08x ................

  • Page 5: About This Document

    1 About this Document About this Document In this Chapter Objective and Target Audience of this User Manual ..............1 Validity for Custom Products ......................1 Symbols and Typographic Conventions ..................1 Figures ............................2 Other Applicable Documents ......................2 Downloading Manuals ........................

  • Page 6: Figures

    Other Applicable Documents The devices and software tools from PI mentioned in this documentation are described in separate manuals. The latest versions of the user manuals are available for download (p. 3) on our website.

  • Page 7: Downloading Manuals

    If a manual is missing or problems occur with downloading:  Contact our customer service department (p. 45). 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® Stack).

  • Page 9: Safety

    For operation of the P-88x/P-08x, suitable electronics that provide the required operating voltages are required. The electronics are not included in the scope of delivery of the P-88x/P-08x. We recommend the use of suitable electronics (p. 12) from PI. General Safety Instructions The P-88x/P-08x is built according to state-of-the-art technology and recognized safety standards.
  • Page 10 2 Safety Temperature changes and compressive stress can induce charges in the P-88x/P-08x piezo actuator. The piezo actuator can remain charged for several hours after disconnecting the electronics. Touching the live parts on the P-88x/P-08x can result in minor injury from electric shock.

  • Page 11: Organizational Measures

    2 Safety Organizational Measures User manual  Always keep this user manual together with the P-88x/P-08x. The latest versions of the user manuals are available for download (p. 3) on our website.  Add all information from the manufacturer to the user manual, for example supplements or technical notes.

  • Page 13: Product Description

    3 Product Description Product Description In this Chapter Model Overview ..........................9 Product View ..........................11 Product Labeling .......................... 11 Scope of Delivery ......................... 12 Suitable Electronics ........................12 Accessories ........................... 13 Technical Features ........................13 Model Overview PICMA® Stack multilayer piezo actuators Model Description P-882.11...
  • Page 14 3 Product Model Description P-887.91 PICMA® piezo actuator, 32 µm travel range, 7 mm × 7 mm × 36 mm, stranded wires PICMA® piezo actuator, 11 µm travel range, 10 mm × 10 mm × P-888.31 13.5 mm, stranded wires P-888.51 PICMA®...

  • Page 15: Product View

    3 Product Description Product View The figure serves as an example and can differ from your model. Figure 1: Example of product view: P-88x (A) and P-080 (B) Ceramic end surface (passive PZT ceramic) Marking for positive pole Contact strip Shrink tube (strain relief of the stranded wires) Black stranded wire: Connection for ground (-) Red stranded wire: Voltage connection (+)

  • Page 16: Scope Of Delivery

    3 Product Labeling Description P-885.51 Product number (example), the digits after the period refer to the model The product number of custom products consists of nine digits (without identification of the model). 16CEP0653128979 Batch number (example), individual for each P-88x/P-08x Manufacturer's logo 1 piece Quantity...

  • Page 17: Accessories

    3 Product Description Accessories Product number Description P-890.10 Cable for piezo voltage, LEMO connector/open end, 1 m P-890.20 Cable for piezo voltage, LEMO connector/open end, 5 m The P-890.xx cable is for connecting the P-88x/P-08x to a low-voltage piezo amplifier. The cable is soldered on the actuator side.

  • Page 19: Unpacking

    4 Unpacking Unpacking NOTICE Destruction of the piezo actuator due to contamination! Contamination on the surface of the P-88x/P-08x can result in the destruction of the piezo actuator by electric flashovers during operation.  When handling the piezo actuator, wear powder-free nitrile or latex gloves. ...

  • Page 21: Installation

    5 Installation Installation In this Chapter General Notes on Installing ......................17 Soldering Stranded Wires to a Piezo Actuator (Models Without Stranded Wires Only)..... 22 Mounting the P-88x/P-08x ......................26 Applying a Preload ........................26 Applying the Load ........................27 Connecting the P-88x/P-08x to the Electronics ................
  • Page 22 5 Installatio NOTICE Destruction of the piezo actuator due to rapid discharging! If the piezo actuator is not connected to the electronics, it must be short-circuited in order to prevent the piezo actuator from becoming charged during temperature changes and compressive stress.
  • Page 23 5 Installation NOTICE Destruction of the piezo actuator due to mechanical overload! Torques and lateral forces can destroy the piezo actuator.  Avoid torques and lateral forces on the piezo actuator.  Make sure that the center of load of the moving system is on the motion axis of the piezo actuator.
  • Page 24 5 Installatio Avoiding mounting errors Piezo actuators may only be loaded axially. Moreover, piezo actuators should be preloaded (p. 26) mechanically in order to avoid tensile stress. The following figures are to help you avoid mounting errors. Figure 2: Prevention of lateral forces and torques Figure 3: Prevention of torques Figure 4:...
  • Page 25 5 Installation Figure 6: Full-area contact of the piezo actuator Figure 7: Proper dimensioning of the end pieces in the case of point contact (1: Tensile stresses) Figure 8: Mechanical or thermal loads electrically charge the piezo actuator. Mount only when short-circuited. P-88x/P-08x Piezo Actuator PZ259E Version: 1.1.0...

  • Page 26: Soldering Stranded Wires To A Piezo Actuator (Models Without Stranded Wires Only)

    5 Installatio Soldering Stranded Wires to a Piezo Actuator (Models Without Stranded Wires Only) This section describes how to solder stranded wires to the models without stranded wires. If your application permits it, we recommend using models that already have stranded wires. NOTICE Destruction of the piezo actuator due to incorrect soldering! Long and repeated soldering processes can dissolve the termination layer that creates the...
  • Page 27 5 Installation Figure 10: Special electrodes for high currents (example view of the contact strips) The positive electrode is identified by a plus sign or a point next to the electrode.  Use a red stranded wire for the voltage connection (+). ...
  • Page 28 5 Installatio Contacting of special electrodes The electrodes of certain special products are equipped with a soldering strip in the middle, to which stranded wires can be soldered. Figure 12: Example view of a special electrode (detail) with stranded wire soldered to soldering strip Soldering strip Contact strip Termination layer...
  • Page 29 5 Installation Suitable flux according to one of the following standards:  DIN EN 29454, part 1, category 1.1.3 or 1.2.3 − − ANSI J-STD-004, flux type ROL0 Suitable cable tools  Soldering stranded wires to a piezo actuator (only models without stranded wires) 1.

  • Page 30: Mounting The P-88X/P-08X

    5 Installatio Mounting the P-88x/P-08x P-88x/P-08x piezo actuators are glued to metal or ceramic surfaces. Requirements  You have read and understood the general notes on installation (p. 17).  The P-88x/P-08x is discharged (p. 39) and short-circuited (p. 40). ...

  • Page 31: Applying The Load

    5 Installation − With highly dynamic applications: The resonant frequency (p. 47) of the preload spring exceeds that of the piezo actuator. Applying a preload  Apply the preload near the axis within the core cross section of the piezo actuator. Applying the Load The P-88x/P-08x can be coupled to a load in various ways, depending on the application: Gluing the piezo actuator (p.

  • Page 32: Connecting The P-88X/P-08X To The Electronics

    5 Installatio Connecting the P-88x/P-08x to the Electronics The P-88x/P-08x piezo actuator is connected to a LEMO socket, a terminal, or soldering pins, depending on the electronics. This section describes how the P-88x/P-08x piezo actuator is connected with the P-890.xx coaxial cable to electronics with a LEMO coaxial socket.
  • Page 33 5 Installation  Models without stranded wires: You have soldered a red stranded wire to the positive electrode (+) and a black stranded wire to the negative electrode (-) of the P-88x/P-08x (p. 22). Tools and accessories P-890.xx coaxial cable (p. 13), LEMO to open end (can be ordered separately) ...

  • Page 35: Starting And Operating

    6 Starting and Operating Starting and Operating In this Chapter General Notes on Starting ......................31 Determining the Operating Parameters ..................35 Operating the P-88x/P-08x ......................39 Discharging the P-88x/P-08x ......................39 Short-Circuiting the P-88x/P-08x ....................40 General Notes on Starting CAUTION Dangerous voltage in piezo actuators during operation! During operation, the piezo actuator carries voltages of up to 120 V (P-88x models) or 100 V...
  • Page 36 6 Starting and O CAUTION Burning from hot surface! The surface of the P-88x/P-08x and the surrounding area can heat up during operation. Touching the P-88x/P-08x and surrounding parts can result in minor injuries from burning.  Cool the P-88x/P-08x so that the temperature of its surface and surrounding parts does not exceed 65 °C.
  • Page 37 6 Starting and Operating NOTICE Destruction of the piezo actuator due to excessive operating frequencies! An excessive operating frequency can cause thermal and mechanical overloading that destroys the piezo actuator.  Select the operating frequency so that the following conditions are met: −...
  • Page 38 6 Starting and O NOTICE Reduced lifetime due to permanently high voltage and high air humidity! Applying a continuous high static voltage to piezo actuators reduces the lifetime of the piezo ceramic. This applies in particular to operation in a humid environment. ...

  • Page 39: Determining The Operating Parameters

    6 Starting and Operating NOTICE Destruction of the piezo actuator due to rapid cooling or heating! Cooling down or heating up too quickly leads to a thermomechanical load that can destroy the piezo actuator.  Allow the piezo actuator to cool down or warm up slowly. NOTICE Uncontrolled oscillation! Oscillation can cause irreparable damage to the P-88x/P-08x.

  • Page 40: Calculating The Effective Mass

    6 Starting and O Maximum compressive/tensile stress capacity (p. 51): The mass of the load to be moved, the preload, and the operating frequency of the piezo actuator must be selected so that the dynamic forces occurring during operation do not exceed the maximum compressive/tensile stress capacity of the piezo actuator.

  • Page 41: Calculating The Maximum Operating Frequency Of The Loaded Piezo Actuator

    6 Starting and Operating 1. Determine the mass m of your piezo actuator. 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. 6.2.3 Calculating the Maximum Operating Frequency of the Loaded Piezo Actuator...

  • Page 42: Calculating The Forces That Occur During Dynamic Operation

    6 Starting and O 6.2.4 Calculating the Forces that Occur During Dynamic Operation  Calculate the dynamic forces acting on the unilaterally clamped piezo actuator during sinusoidal operation at the frequency f using the following formula: = Dynamic force [N] ' = Effective mass m (approx.

  • Page 43: Operating The P-88X/P-08X

    (p. 50) of the actuator Only for P-88x/P-08x with connector (p. 28):  − Electronics (p. 12) from PI Discharging a P-88x/P-08x connected to the electronics  Set the piezo voltage to 0 V on the electronics. P-88x/P-08x Piezo Actuator PZ259E Version: 1.1.0...

  • Page 44: Short-Circuiting The P-88X/P-08X

    3. Short-circuit the electrodes of the P-88x/P-08x for at least a few seconds using a 10 kΩ discharge resistor. If the P-88x/P-08x has a connector:  Connect the voltage connection of the P-88x/P-08x to the switched off PI electronics, which has an internal discharge resistor, for at least a few seconds. Short-Circuiting the P-88x/P-08x The P-88x/P-08x must be discharged (p.

  • Page 45: Maintenance

    7 Maintenance Maintenance In this Chapter General Notes on Maintenance ....................41 Cleaning the P-88x/P-08x ......................41 General Notes on Maintenance The P-88x/P-08x is maintenance-free. Cleaning the P-88x/P-08x NOTICE Destruction of the piezo actuator due to electric flashovers! If it comes into contact with liquids, the piezo actuator can be destroyed by electric flashovers. Before cleaning the P-88x/P-08x: ...
  • Page 46 7 Maintenance  When cleaning in an ultrasonic bath: Reduce the energy input to the necessary minimum. − − Use isopropyl alcohol or ethanol as cleaning fluid only. Make sure that the cleaning time is 5 minutes. −  After cleaning, dry the P-88x/P-08x completely in a drying cabinet (recommended duration: 30 minutes at 40 °C).

  • Page 47: Troubleshooting

    8 Troubleshooting Troubleshooting Problem Possible causes Solution No or limited motion Cable not connected correctly  Check the cable connections. Excessive load  Do not exceed the maximum compressive/tensile stress capacity (p. 51). Piezo actuator is depolarized due  Contact our customer to overheating or reverse service department (p.

  • Page 49: Customer Service

    9 Customer Service Customer Service You can contact PI Ceramic by telephone under +49 36604 882-0 or by email at the following address: For general questions or for orders:  info@piceramic.com In the case of technical problems or faults: ...

  • Page 51: Technical Data

    10 Technical Data Technical Data In this Chapter Specifications ..........................47 Dimensions ..........................53 Subject to change. You can find the latest product specifications on the product web page at www.pi.ws (https://www.pi.ws). 10.1 Specifications 10.1.1 Data Table PICMA® Stack multilayer piezo actuators P-882.11...
  • Page 52 10 Technical Data P-885.51 P-885.91 P-887.31 P-887.51 P-887.91 P-888.31 P-888.51 P-888.91 Unit Dimensions A × B × L 5 × 5 × 18 5 × 5 × 36 7 × 7 × 7 × 7 × 18 7 × 7 × 36 10 × 10 × 10 ×...
  • Page 53 10 Technical Data PICMA® Stack multilayer ring actuators with inner hole P-080.311 P-080.341 P-080.391 Unit Dimensions OD × ID × L 8 × 4.5 × 8.5 8 × 4.5 × 16 8 × 4.5 × 36 Nominal travel range 5.5 ±20 % 11 ±20 % 25 ±10 % µm...

  • Page 54: Maximum Ratings

    10 Technical Data 10.1.2 Maximum Ratings P-88x/P-08x 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 values apply to unilaterally clamped piezo actuators and are calculated as follows: A third of the resonant frequency of the unloaded piezo actuator (operation when not clamped on both sides) divided by two.

  • Page 55: Compressive/Tensile Stress Capacity And Preload

    10 Technical Data Piezo Maximum Maximum operating frequency Maximum power actuator* operating voltage without load consumption range Without Considering Considering considering thermal aspects thermal aspects thermal aspects P-887.3x -20 V to 120 V 15 kHz 60 Hz 3.5 W P-887.5x -20 V to 120 V 11.7 kHz 55 Hz...

  • Page 56: Ambient Conditions And Classifications

    (p. 45).  Pay attention to the information on service life, which can be found here: − "General Notes on Starting" (p. 31) section − Internet site of PI Ceramic (www.piceramic.com/piezo-technologie/picma.html) Operating temperature -40 °C to 150 °C Storage temperature -40 °C to 80 °C...

  • Page 57: Dimensions

    10 Technical Data 10.2 Dimensions Figure 17: P-88x: Dimensions Model Unit P-882.11 P-882.31 13.5 P-882.51 P-883.11 P-883.31 13.5 P-883.51 P-885.11 P-885.31 13.5 P-885.51 P-885.91 P-887.31 13.5 P-887.51 P-887.91 P-888.31 13.5 P-888.51 P-888.91 P-88x/P-08x Piezo Actuator PZ259E Version: 1.1.0...
  • Page 58 10 Technical Data Figure 18: P-080: Dimensions P-080.311 model: L = 8.5 mm; P-080.341 model: L = 16 mm; P-080.391 model: L = 36 mm Version: 1.1.0 PZ259E P-88x/P-08x Piezo Actuator...
  • Page 59 10 Technical Data Figure 19: P-088: Dimensions P-088.721 model: L = 16 mm; P-088.741 model: L = 36 mm; P-088.781 model: L = 77 mm P-88x/P-08x Piezo Actuator PZ259E Version: 1.1.0...

  • Page 61: Disposal

    PI products made available on the market after August 13, 2005, without charge. Any product from PI Ceramic that is to be disposed of can be sent free of shipping costs to the following address: PI Ceramic GmbH...
  • Page 63 12 EU Declaration of Conformity EU Declaration of Conformity An EU Declaration of Conformity was issued for the P-88x/P-08x in accordance with the following European directives: RoHS Directive The applied standards certifying the conformity are listed below. RoHS: EN 50581 or EN IEC 63000 If an electrical operating device is designed to be integrated into another electrical operating device: The operator is responsible for standards compliant integration of the electrical device into the overall system.

This manual is also suitable for:

P-08 seriesP-882.11P-882.31P-882.51P-883.11P-883.31 ... Show all

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