PI MP116E User manual

Physik Instrumente (PI) GmbH & Co. KG, Auf der Roemerstrasse 1, 76228 Karlsruhe, Germany
Phone [phone], Fax [phone], Email [e-mail], www.pi.ws
MP116E
N
-422 Linear Drive
User Manual
Version: 1.1.2
Date: 08.11.2022
This document describes the following product:

N-422.50
Linear actuator with piezo motor; piezoelectric
inertia drive; 35 mm travel range; 7 N feed
force; 5 mm/s maximum velocity; 1.5 m cable
length

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
© 2022 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: 08.11.2022
Document number: MP116E, EWei / CBo, version 1.1.2
Subject to change without notice. This manual is superseded by any new release. The latest release is
available for download on our website (p. 2).

1About this Document 1
1.1 Objective and Target Group 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
3Product Description 7
3.1 Product View .............................................................................................................. 7
3.2 Product Labeling......................................................................................................... 8
3.3 Scope of Delivery........................................................................................................ 9
3.4 Suitable Drive Electronics........................................................................................... 9
3.5 Optional Accessories ................................................................................................ 10
4Unpacking 11
5Installing 13
5.1 General Notes on Installation................................................................................... 13
5.2 Integrating the N-422 into the Mechanics ............................................................... 16
6Starting and Operating 21
6.1 General Notes on Starting and Operating................................................................ 21
6.2 Starting and Operating the N-422 with E-872.401 Drive Electronics....................... 22
6.3 Operating Parameters of the N-422......................................................................... 23
Contents

7Maintenance 25
8Troubleshooting 27
9Customer Service Department 29
10 Technical Data 31
10.1 Specifications............................................................................................................ 31
10.1.1 Data Table.................................................................................................... 31
10.1.2 Maximum Ratings........................................................................................ 32
10.1.3 Ambient Conditions and Classifications ...................................................... 32
10.2 Drive Performance ................................................................................................... 33
10.3 Lifetime..................................................................................................................... 33
10.4 Dimensions ............................................................................................................... 34
10.5 Pin Assignment ......................................................................................................... 35
11 Old Equipment Disposal 37
12 European Declarations of Conformity 39

1 About this Document
N-422 Linear Drive MP116E Version: 1.1.2 1
In this Chapter
Objective and Target Group of this User Manual.......................................................................... 1
Symbols and Typographic Conventions ......................................................................................... 1
Figures............................................................................................................................................ 2
Other Applicable Documents......................................................................................................... 2
Downloading Manuals ................................................................................................................... 2
1.1 Objective and Target Group of this User Manual
This user manual contains the information necessary for using the N-422 as intended.
We assume that the user has basic knowledge of closed-loop systems, motion control concepts,
and applicable safety measures.
The latest versions of the user manuals are available for download on our website (p. 2).
1.2 Symbols and Typographic Conventions
The following symbols and typographic conventions are used in this user manual:
CAUTION
Dangerous situation
Failure to comply could lead to minor injury.
Precautionary measures to avoid the risk.
NOTICE
Dangerous situation
If this situation is not avoided, it will damage the 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: 1.1.2 MP116E N-422 Linear Drive
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 points
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-872.401 Q-Motion® piezo motor /
PiezoMike drive electronics
PZ279 User Manual

1 About this Document
N-422 Linear Drive MP116E Version: 1.1.2 3
1.5 Downloading Manuals
INFORMATION
If a manual is missing or problems occur with downloading:
Contact our customer service department (p. 29).
Downloading manuals
1. Open the website www.pi.ws.
2. Search the website for the product number (e.g., N-422).
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 desired manual and fill out the inquiry form.
The download link will then be sent to the email address entered.

2 Safety
N-422 Linear Drive MP116E Version: 1.1.2 5
In this Chapter
Intended Use.................................................................................................................................. 5
General Safety Instructions............................................................................................................ 5
2.1 Intended Use
The N-422 is a laboratory device as defined by DIN EN 61010-1. It is intended for indoor use and
use in an environment which is free of dirt, oil, and lubricants.
The N-422 is a linear drive for integration in motion systems used for positioning, adjusting and
displacing an object (load) on an axis. For integration purposes, the mechanics into which the
N-422 is to be installed must have suitable guides. The N-422 can be mounted horizontally or
vertically.
The N-422 linear drive uses the principle of inertia (stick-slip effect). The feed of the runner is
produced by alternating static and sliding friction between the runner and a cyclically activated
piezo actuator. The object (load) which is to be moved is coupled with the moving runner.
The drive is self-locking at rest, requires no current, and does not generate any heat. It holds
the position with maximum force.
The N-422 is not intended for continuous operation. Refer to "Technical Data" (p. 31) for
further information on the operating conditions of the N-422.
The intended use of the N-422 is only possible in conjunction with suitable drive electronics
which have the necessary operating voltages. The drive electronics are not in the scope of
delivery of the N-422. PI offers suitable drive electronics p. 9.
External position sensors and a position controller are required for the closed-loop operation of
a motion system with N-422 drive and drive electronics.
2.2 General Safety Instructions
The N-422 is built according to state-of-the-art technology and recognized safety standards.
Improper use of the N-422 may result in personal injury and/or damage to the N-422.
Use the N-422 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-422 correctly.
2
Safety

2 Safety
6 Version: 1.1.2 MP116E N-422 Linear Drive
Organizational Measures
User manual
Always keep this user manual together with the N-422. The latest versions of the user
manuals are available for download on our website (p. 2).
Add all information from the manufacturer such as supplements or technical notes to
the user manual.
If you give the N-422 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 result in minor injury and damage to equipment.
Install and operate the N-422 only after you have read and understood this user
manual.
Personnel qualification
The N-422 may only be installed, started, operated, maintained, and cleaned by authorized and
appropriately qualified personnel.

3 Product Description
N-422 Linear Drive MP116E Version: 1.1.2 7
In this Chapter
Product View.................................................................................................................................. 7
Product Labeling ............................................................................................................................ 8
Scope of Delivery ........................................................................................................................... 9
Suitable Drive Electronics .............................................................................................................. 9
Optional Accessories...................................................................................................................... 9
3.1 Product View
Figure 1: N-422: Product view
1Base body
2Coupling element (consisting of clamp, spring and tip) for
fixing the object which is to be moved
3Moving runner
4Connecting cable
The arrow indicates the polarity of the direction of motion when
the base body of the N-422 is on the fixed part of the
mechanics and the runner is coupled to the moving part.
3
Product Description

3 Product Description
8 Version: 1.1.2 MP116E N-422 Linear Drive
Figure 2: N-422: Detailed view of the coupling element
1Clamp
2Spring
3Tip
4Moving runner
3.2 Product Labeling
Figure 3: N-422: Position of the product labeling
Position Labeling Description
A N-422.50 Product name
A Manufacturer's logo
A
WWW.PI.WS
Manufacturer's address (website)
A
Country of origin:
Germany
Country of origin

3 Product Description
N-422 Linear Drive MP116E Version: 1.1.2 9
Position Labeling Description
B
123456789
Serial number (example), individual for
each N-422
Meaning of each position (from the left):
1 = internal information, 2 and 3 = year of
manufacture, 4 to 9 = consecutive number
B
Warning sign "Pay attention to the
manual!"
B
CE conformity mark
B
Old equipment disposal (p. 37)
3.3 Scope of Delivery
Product number Description
N-422.50
Linear actuator with piezo motor; piezoelectric inertia drive; 35 mm
travel range; 7 N feed force; 5 mm/s maximum velocity; 1.5 m cable
length
000044159
Screw set, consisting of:
3 socket head screws M2x8-A2-50, ISO 4762
3 flat head screws M2x16-A2-050, ISO 14583
3 Schnorr S2-A2 lock washers
T6 Torx keys for screws M2x16-A2
AF 1.5 Hex key with spherical head for M2x8-A2 screws
MP116E
User manual (this document) in printed form
3.4 Suitable Drive Electronics
To operate the N-422, you need suitable drive electronics (not in the scope of delivery). The
following drive electronics are available:
Product number Description
E-872.401
Q-Motion® piezo motor / PiezoMike drive electronics, benchtop
device, drives up to 4 linear actuators via one amplifier channel,
TCP/IP, USB, USB for joystick, Digital-I/O
To order, contact the customer service department (p. 29).

3 Product Description
10 Version: 1.1.2 MP116E N-422 Linear Drive
3.5 Optional Accessories
Product number Description
N-400.A02
Extension cable, 3-pole LEMO connector to 3-pole LEMO connector,
2 m
N-400.A05
Extension cable, 3-pole LEMO connector to 3-pole LEMO connector,
5 m
N-400.A08
Extension cable, 3-pole LEMO connector to 3-pole LEMO connector,
8 m
N-400.ALM
Adapter, 3-pole LEMO to 4-pole Mini-DIN, 5 cm
PiezoMike adapter for connecting PiezoMike linear actuators to
older electronics from the E-870 series with Mini-DIN sockets
N-400.AML
Adapter, 4-pole Mini-DIN to 3-pole LEMO, 5 cm
PiezoMike adapter for connecting older PiezoMike linear actuators
with Mini-DIN connectors to E-872 electronics
To order, contact the customer service department (p. 29).

4 Unpacking
N-422 Linear Drive MP116E Version: 1.1.2 11
1. Unpack the N-422 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. 29).
4. Keep all packaging materials in case the product needs to be returned.
4
Unpacking

5 Installing
N-422 Linear Drive MP116E Version: 1.1.2 13
In this Chapter
General Notes on Installation ...................................................................................................... 13
Integrating the N-422 into the Mechanics................................................................................... 16
5.1 General Notes on Installation
NOTICE
Increased friction due to lateral forces on the runner!
Lateral forces that act on the runner of the linear drive increase the friction between the
runner and other components of the drive. Increased friction impairs the motion of the runner
and increases wear on the drive components.
Avoid lateral forces on the runner of the linear drive.
Precisely align the base body, runner and guide with each other across the entire travel
range.
If possible, use high-quality linear guides that have been specially designed for high-
precision applications (e.g., crossed roller bearings or roller bearings).
Avoid manually moving the runner of the N-422.
NOTICE
Damage from pulling out or moving the runner!
Completely pulling out or moving the runner from the base body will destroy the N-422.
Do not pull out or move the runner from the base body of the N-422.
Design the positioning system so that the free end of the runner still protrudes from the
base body of the N-422 even when the travel range is used completely.
Limit the travel range appropriately, e.g., with a mechanical hard stop in the positioning
system.
NOTICE
Damage from collision of the coupling element with the base body!
If the coupling element collides with the base body of the N-422, damage or considerable wear
to the N-422 is possible.
Design the positioning system so that there is no contact between the coupling element
and the base body of the N-422.
5
Installing

5 Installing
14 Version: 1.1.2 MP116E N-422 Linear Drive
NOTICE
Damage from opening the base body!
Opening the base body destroys the N-422.
Do not open the N-422.
NOTICE
Warping of the base body!
Unsuitable mounting could warp the base body and therefore the linear drive. Warping of the
base body reduces the feed force.
Mount the N-422 onto an even surface. The recommended flatness of the surface is 50 µm.
For applications with large temperature fluctuations:
Only mount the N-422 onto surfaces which have the same or similar thermal expansion
properties as the N-422 (e.g., surfaces made of stainless steel).
NOTICE
The N-422 heats up during operation!
During operation, the N-422 emits up to 15 watts of heat which can affect your application.
Install the N-422 so that your application is not impaired by dissipating heat.
Ensure sufficient ventilation at the place of application.
Make sure that the complete lower side of the N-422 is in contact with the surface on
which the N-422 is mounted.
If possible: Pay attention to the optimal operating conditions (duty cycle, ambient
temperature), see "Lifetime" (p. 33).
NOTICE
Damage from unsuitable cables!
Unsuitable cables can damage the electronics.
Only use the cables provided by PI for connecting the N-422 to the electronics.
INFORMATION
If the N-422 becomes contaminated with dirt, oil, lubricant or condensation, the dynamic force
and the velocity of the drive will decrease.
If necessary, install the entire system in a housing to protect it from contamination.
Prevent the N-422 from condensing. If condensation has formed on the N-
422, let the drive
dry before startup.

5 Installing
N-422 Linear Drive MP116E Version: 1.1.2 15
INFORMATION
When the N-422 is installed in mechanics which are to be operated in closed-loop mode, you
will need an external position sensor such as a linear encoder (not in the scope of delivery).
Furthermore, the electronics must be able to read out and process the signals of the external
position sensor.
Pay attention to the installation instructions of the manufacturer when installing the
position sensor.
Mount the position sensor as closely as possible to the intended motion.
Pay attention to the input and output signals of the electronics used to operate the N-422.
INFORMATION
The object which is to be moved is fastened to the coupling element of the N-422.
Directions of motion
When the base body of the N-422 is on the fixed part of the mechanics and the runner is
coupled to the moving part, the polarity of the direction of motion corresponds to that shown
in the following figure.
Figure 4: Directions of motion of the N-422
For further information on the operating conditions, refer to the "Technical Data" section
(p. 31).

5 Installing
16 Version: 1.1.2 MP116E N-422 Linear Drive
5.2 Integrating the N-422 into the Mechanics
Figure 5: Example of integration of the N-422 in the mechanics
1Moving sled
2Mounting fixture for the coupling element of the N-422
3Mounting fixture for the base body of the N-422
4Base body of the mechanics
5Guide