PI N-472 User manual

Physik Instrumente (PI) GmbH & Co. KG, Auf der Römerstraße 1, 76228 Karlsruhe, Germany
Phone [phone], fax [phone], e-mail [email protected]s, www.pi.ws
MP144E
N
-472 Linear Actuator
User Manual
Version: 1.5.0
Date: 29.09.2023
This document describes the following products:

N-472.110/.110Y, N-472.11V
PiezoMike linear actuator, 7 mm travel range,
M10×1 thread

N-472.120/.120Y, N-472.12V
PiezoMike linear actuator, 7 mm travel range,
9.5 mm (0.375") clamping shank
Models:
Y: Turned cable exit
0: Not suitable for use in a vacuum
V: Vacuum-compatible to 10-6 hPa

The following company names and brands are registered trademarks of Physik Instrumente (PI) GmbH & Co.
KG:
PI®, NanoCube®, PICMA®, PILine®, NEXLINE®, PiezoWalk®, NEXACT®, Picoactuator®, PInano®, PIMag®,
Q-Motion®
The patents held by PI are found in our patent list: https://www.physikinstrumente.com/en/about-pi/patents
© 2023 Physik Instrumente (PI) GmbH & Co. KG, Karlsruhe, Germany. The text, photographs and drawings in
this manual are protected by copyright. With regard thereto, Physik Instrumente (PI) GmbH & Co. KG retains
all the rights. Use of said text, photographs and drawings is permitted only in part and only upon citation of
the source.
Original instructions
First printing: 29.09.2023
Document number: MP144E, CBo, version 1.5.0
Subject to change without notice. This manual is superseded by any new release. The latest release is
available for download on our website (p. 3).

1About this Document 1
1.1 Objective and Target Audience of this User Manual.................................................. 1
1.2 Symbols and Typographic Conventions...................................................................... 1
1.3 Figures ........................................................................................................................ 2
1.4 Other Applicable Documents ..................................................................................... 2
1.5 Downloading Manuals................................................................................................ 3
2Safety 5
2.1 Intended Use .............................................................................................................. 5
2.2 General Safety Instructions ........................................................................................ 5
2.2.1 Organizational Measures............................................................................... 6
2.2.2 Measures for Handling Vacuum-Compatible Products ................................. 6
3Product Description 7
3.1 Model Overview ......................................................................................................... 7
3.2 Product View .............................................................................................................. 8
3.3 Product Labeling....................................................................................................... 10
3.4 Scope of Delivery...................................................................................................... 11
3.5 Suitable Controllers .................................................................................................. 11
3.6 Technical Features.................................................................................................... 12
3.6.1 ID Chip.......................................................................................................... 12
4Unpacking 13
5Installing 15
5.1 General Notes on Installation................................................................................... 15
5.2 Installing the Linear Actuator into a Mechanical Mounting and Connecting it
to the Protective Earth Conductor ........................................................................... 17
5.3 Preparing a Vacuum-Compatible N-472 for Connection to the Controller.............. 20
6Starting and Operating 23
6.1 General Notes on Starting and Operating................................................................ 23
6.2 Operating Parameters .............................................................................................. 26
6.3 Operating the N-472................................................................................................. 26
6.4 Determining the Reference Position Manually ........................................................ 27
Contents

7Maintenance 29
8Troubleshooting 31
9Customer Service Department 33
10 Technical Data 35
10.1 Specifications............................................................................................................ 35
10.1.1 Data Table.................................................................................................... 35
10.1.2 Materials Used for Vacuum-Compatible Models ........................................ 37
10.1.3 Maximum Ratings........................................................................................ 37
10.1.4 Ambient Conditions and Classifications ...................................................... 38
10.2 Step Size and Axial Force.......................................................................................... 38
10.3 Lifetime..................................................................................................................... 39
10.4 Operating Time and Duty Cycle................................................................................ 40
10.5 Dimensions ............................................................................................................... 43
10.5.1 Models with Turned Cable Exit.................................................................... 43
10.5.2 Models with M10x1 Thread......................................................................... 44
10.5.3 Models with Clamping Shank ...................................................................... 45
10.6 Pin Assignment ......................................................................................................... 46
11 Old Equipment Disposal 47
12 European Declarations of Conformity 49

1 About this Document
N-472 Linear Actuator MP144E Version: 1.5.0 1
In this Chapter
Objective and Target Audience of this User Manual ..................................................................... 1
Symbols and Typographic Conventions ......................................................................................... 1
Figures............................................................................................................................................ 2
Other Applicable Documents......................................................................................................... 2
Downloading Manuals ................................................................................................................... 3
1.1 Objective and Target Audience of this User Manual
This user manual contains the information required for using the N-472 as intended.
It assumes that the reader has a fundamental understanding of basic servo systems as well as
motion control concepts and applicable safety procedures.
The latest versions of the user manuals are available for download on our website (p. 3).
1.2 Symbols and Typographic Conventions
The following symbols and typographic conventions are used in this user manual:
DANGER
Immediate threat of danger
Failure to comply could lead to death or serious injury.
Precautionary measures for avoiding the risk.
NOTICE
Dangerous situation
Failure to comply could cause damage to equipment.
Precautionary measures to avoid the risk.
INFORMATION
Information for easier handling, tricks, tips, etc.
1
About this Document

1 About this Document
2 Version: 1.5.0 MP144E N-472 Linear Actuator
Symbol/Label Meaning
1.
2.
Action consisting of several steps with strict sequential order
 Action consisting of one or more steps without relevant
sequential order

Bullet point
p. 5
Cross-reference to page 5
RS-232
Label on the product indicating an operating element (example:
RS-232 interface socket)
Warning sign on the product referring to detailed information in
this manual.
1.3 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.
1.4 Other Applicable Documents
The devices and software tools from PI mentioned in this documentation are described in
separate manuals.
Product Document
E-873.1AT Q-Motion® controller for
piezoelectric inertia drives, 1 axis, benchtop
device (industry), SPI, TCP/IP, USB, RS-232, I/O,
connector for joystick
PZ273 user manual
PIMikroMove SM148E software manual

1 About this Document
N-472 Linear Actuator MP144E Version: 1.5.0 3
1.5 Downloading Manuals
INFORMATION
If a manual is missing or problems occur with downloading:
Contact our customer service department (p. 33).
Downloading manuals
1. Open the website www.pi.ws.
2. Search the website for the product number (e.g., N-472).
3. Click the corresponding product to open the product detail page.
4. Click the Downloads tab.
The manuals are shown under Documentation. Software manuals are shown under
General Software Documentation.
5. Click the ADD TO LIST button for the desired manual and then click REQUEST.
6. Fill out the request form and click SEND REQUEST.
The download link will then be sent to the email address entered.

2 Safety
N-472 Linear Actuator MP144E Version: 1.5.0 5
In this Chapter
Intended Use.................................................................................................................................. 5
General Safety Instructions............................................................................................................ 5
2.1 Intended Use
The N-472 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 from dirt, oil, and lubricants.
The N-472 is a linear actuator for integration into mechanical and optomechanical components.
For integration, the mechanics, in which the N-472 is to be installed, must have suitable
mountings.
A piezoelectric motor is installed in the N-472 linear actuator that acts on the fine-threaded
screw and moves it.
When at rest, the drive is self-locking and therefore requires no current and generates no heat.
It holds the position with maximum force.
The N-472 is not intended for continuous operation. For further information on the operating
conditions of the N-472, see "Technical Data" (p. 35).
The intended use of the N-472 is only possible in conjunction with a suitable controller (p. 11),
which is available from PI. The controller is not included in the scope of delivery of the N-472.
The controller must provide the required operating voltages. It must also be able to read out
and process the signals from the position sensors so that the servo control system can function
properly.
2.2 General Safety Instructions
The N-472 is built according to state-of-the-art technology and recognized safety standards.
Improper use of the N-472 may result in personal injury and/or damage to the N-472.
Use the N-472 for its intended purpose only, and only when it is in perfect condition.
Read the user manual.
Immediately eliminate any faults and malfunctions that are likely to affect safety.
The operator is responsible for installing and operating the N-472 correctly.
2
Safety

2 Safety
6 Version: 1.5.0 MP144E N-472 Linear Actuator
2.2.1 Organizational Measures
User manual
Always keep this user manual together with the N-472. The latest versions of the user
manuals are available for download on our website (p. 3).
Add all information from the manufacturer such as supplements or technical notes to
the user manual.
If you give the N-472 to other users, include this user manual as well as all other
relevant information provided by the manufacturer.
Do the work only if the user manual is complete. Missing information due to an
incomplete user manual can lead to serious or fatal injuries as well as damage to the
equipment.
Install and operate the N-472 only after you have read and understood this user
manual.
Personnel qualification
The N-472 may only be installed, started, operated, maintained, and cleaned by authorized and
appropriately qualified personnel.
2.2.2 Measures for Handling Vacuum-Compatible Products
When handling the vacuum version of the linear actuator, attention must be paid to
appropriate cleanliness. At PI, all parts are cleaned before assembly. During assembly and
measurement, powder-free gloves are worn. Afterwards, the linear actuator is cleaned once
again by wiping and shrink-wrapped twice in vacuum-compatible film.
Touch the linear actuator only with powder-free gloves.

3 Product Description
N-472 Linear Actuator MP144E Version: 1.5.0 7
In this Chapter
Model Overview............................................................................................................................. 7
Product View.................................................................................................................................. 8
Product Labeling .......................................................................................................................... 10
Scope of Delivery ......................................................................................................................... 11
Suitable Controllers ..................................................................................................................... 11
Technical Features ....................................................................................................................... 12
3.1 Model Overview
PiezoMike linear actuators with M10×1 thread
Model Description
N-472.110
Closed loop PiezoMike linear actuator, 7 mm, M10×1 thread
N-472.110Y
Closed loop PiezoMike linear actuator, 7 mm, M10×1 thread, turned cable exit
PiezoMike linear actuators with M10×1 thread, vacuum-compatible to 10-6 hPa
Model Description
N-472.11V
Closed loop PiezoMike linear actuator, 7 mm, M10×1 thread, vacuum
compatible to 10-6 hPa
PiezoMike linear actuators with clamping shank
Model Description
N-472.120
Closed loop PiezoMike linear actuator, 7 mm, 9.5 mm (0.375") clamping shank
N-472.120Y
Closed loop PiezoMike linear actuator, 7 mm, 9.5 mm (0.375") clamping shank,
turned cable exit
PiezoMike linear actuators with clamping shank, vacuum-compatible to 10-6 hPa
Model Description
N-472.12V
Closed loop PiezoMike linear actuator, 7 mm, 9.5 mm (0.375") clamping shank,
vacuum compatible to 10-6 hPa
3
Product Description

3 Product Description
8 Version: 1.5.0 MP144E N-472 Linear Actuator
3.2 Product View
N-472 models with M10x1 thread
The description of the product components is also valid for models with turned cable exit.
Figure 1: Models with thread and standard cable exit (example illustration):
Standard version (left) and vacuum version (right)
1
Screw head
2Fine-threaded screw (rotating)
3Base body
4M10x1 mounting nut
5M10x1 mounting thread
6Ball tip for connecting to the movable part of the mechanical mounting
7Unscrew lock (circlip) for fine-threaded screw
8Product labeling
9Cable for connecting to the controller (sensor cable not illustrated)

3 Product Description
N-472 Linear Actuator MP144E Version: 1.5.0 9
N-472 models with clamping shank
The description of the product components is also valid for models with turned cable exit.
Figure 2: Models with clamping shank and standard cable exit (example illustration):
Standard version (left) and vacuum version (right)
1
Screw head
2Fine-threaded screw (rotating)
3Base body
4Clamping shank (9.5 mm diameter, 6 mm clamping width)
5M9x1 mounting nut
6Ball tip for connecting to the movable part of the mechanical mounting
7Unscrew lock (circlip) for fine-threaded screw
8Product labeling
9Cable for connecting to the controller (sensor cable not illustrated)
Directions of Motion
Figure 3: Directions of motion of the N-472
Pay attention to further information on the operating conditions in the "Technical Data" section
(p. 35).

3 Product Description
10 Version: 1.5.0 MP144E N-472 Linear Actuator
3.3 Product Labeling
Figure 4: N-472: Product labeling
Figure 5: Type plate (N-472.110 as example)
Figure 6: Laser inscription (for vacuum-compatible models, N-470.21V as an example)

3 Product Description
N-472 Linear Actuator MP144E Version: 1.5.0 11
Position Labeling Description
A
Manufacturer's logo
A
WWW.PI.WS
Manufacturer's address (website)
B CE conformity mark
B
Warning sign "Pay attention to the manual!"
B
Old equipment disposal (p. 47)
B
Symbol for the protective earth conductor
(p. 17)
B
Country of origin: Germany
Country of origin
C
N-472.110
Product name (example), the characters
following the period refer to the model
C
123456789
Serial number (example), individual for each
N-472
Meaning of each position (from the left):
1 = internal information, 2 and 3 = year of
manufacture, 4 to 9 = consecutive number
Only with models that are not suitable for use in a vacuum:
C
R: 00.001
Revision number (example)
C
Data matrix code (example; contains the serial
number)
3.4 Scope of Delivery
Product number Components
N-472
Linear actuator according to order (p. 7)
000049906
Hook wrench
MP171EK
Short instructions for PiezoMike linear actuators
For vacuum-compatible models only:
N472B0001
Motor / sensor cable, D-sub 15 (m) to open end, 2 m, on the air side
3.5 Suitable Controllers
Product number Description
E-873.1AT
Q-Motion® controller for piezoelectric inertia drives, 1 axis, benchtop
device (industry), SPI, TCP/IP, USB, RS-232, I/O, connector for joystick

3 Product Description
12 Version: 1.5.0 MP144E N-472 Linear Actuator
3.6 Technical Features
3.6.1 ID Chip
An ID chip is in the D-sub connector (m) of the linear actuator, in which the data on the linear
actuator is stored (e.g., linear actuator type, serial number, date of manufacture, hardware
version).
When switched on or rebooted, controllers from PI read the data from the ID chip.
For more information on the ID chip recognition, see the manual of the controller used.

4 Unpacking
N-472 Linear Actuator MP144E Version: 1.5.0 13
INFORMATION
When handling the vacuum version of the linear actuator, attention must be paid to
appropriate cleanliness. At PI, all parts are cleaned before assembly. During assembly and
measurement, powder-free gloves are worn. Afterwards, the linear actuator is cleaned once
again by wiping and is then shrink-wrapped twice in vacuum-compatible film.
Touch the linear actuator only with powder-free gloves.
1. Unpack the N-472 with care.
2. Compare the contents with the scope of delivery according to the contract and the
delivery note.
3. Inspect the contents for signs of damage. If any parts are damaged or missing, contact
our customer service department immediately (p. 33).
4. Keep all packaging materials in case the product needs to be returned.
4
Unpacking

5 Installing
N-472 Linear Actuator MP144E Version: 1.5.0 15
In this Chapter
General Notes on Installation ...................................................................................................... 15
Installing the Linear Actuator into a Mechanical Mounting and Connecting it to the
Protective Earth Conductor ......................................................................................................... 17
Preparing a Vacuum-Compatible N-472 for Connection to the Controller ................................. 20
5.1 General Notes on Installation
NOTICE
Friction due to lateral forces!
Lateral forces acting on the fine-threaded screw and the ball tip of the linear actuator increase
the friction on the internal drive components. Increased friction impairs the motion of the fine-
threaded screw and increases wear on the drive components.
Avoid lateral forces on the fine-threaded screw and on the ball tip of the N-472.
Install the N-472 so that the fine-threaded screw is aligned vertically to the contact surface
of the movable part of the mechanical mounting.
NOTICE
Increased wear due to friction!
Increased friction on the contact surface between the ball tip and the movable part of the
mechanical mounting increases wear.
Make sure that the contact surface of the mechanical mounting has a roughness of Ra
<0,1 µm and a hardness of at least 500 HV (corresponds to hardened steel).
Optional: Decrease the friction by applying a small amount of lubricant to the contact
surface of the mechanical mounting.
NOTICE
Heating up of the N-472 during operation!
During operation, the N-472 emits up to 5.2 watts of heat that can affect your application.
Install the N-472 so that your application is not affected by the dissipating heat.
Ensure sufficient ventilation at the place of installation.
Pay attention to the operating conditions (duty cycle, ambient temperature) according to
the specifications in "Technical Data" (p. 35).
5
Installing

5 Installing
16 Version: 1.5.0 MP144E N-472 Linear Actuator
NOTICE
Damage from unsuitable cables!
Unsuitable cables can cause damage to the controller.
Use cables from PI only to connect the N-472 to the controller.
NOTICE
Dirt, condensation, lubricants!
Dirt, condensation and inappropriately applied lubricant render the drive inoperable.
Keep the N-472 free from dirt and condensation.
Do not remove the lubricant that was applied to the fine-threaded screw of the N-472 at
the factory.
Do not lubricate the fine-threaded screw of the N-472.
NOTICE
Damage from opening the base body!
Opening the base body destroys the N-472.
Do not open the N-472.
NOTICE
Damage from unscrewing!
Completely unscrewing the fine-threaded screw from the base body leads to damage to the
N-472.
Do not unscrew the fine-threaded screw from the base body of the N-472.
NOTICE
Damage to the fine-threaded screw from contact with hard objects!
Contact with hard objects can damage the thread of the fine-threaded screw. A damaged
thread can lead to the failure of the linear actuator.
Prevent the fine-threaded screw from coming into contact with hard objects.
NOTICE
Damage from overtightening the mounting nut!
Overtightening the mounting nut can damage the linear actuator.
Hand-tighten the mounting nut.