Siemens SINUMERIK ONE NCU 1740 Technical Document

SINUMERIK
SINUMERIK ONE
NCU 1740
Equipment Manual
Valid for
control system
SINUMERIK ONE
6FC5317-4AA00-0AA0
10/2021
A5E51087503B AA
Introduction 1
Fundamental safety
instructions 2
System overview 3
Description 4
Application planning 5
Dimension drawings 6
Installation 7
Connecting 8
Diagnostics 9
Service and maintenance 10
Technical data 11
Connectable components 12
Spare parts/accessories 13
Safety symbols 14
Appendix A

Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage
to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices
referring only to property damage have no safety alert symbol. These notices shown below are graded according to
the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be
used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property
damage.
Quali󹪝ed Personnel
The product/system described in this documentation may be operated only by personnel quali󹪝ed for the speci󹪝c
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Quali󹪝ed personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended or
approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance
are required to ensure that the products operate safely and without any problems. The permissible ambient
conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identi󹪝ed by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication may
be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described.
Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this
publication is reviewed regularly and any necessary corrections are included in subsequent editions.
Siemens AG
Digital Industries
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E51087503B AA
Ⓟ 10/2021 Subject to change
Copyright © Siemens AG 2021.
All rights reserved

Table of contents
1 Introduction ........................................................................................................................................... 7
1.1 About SINUMERIK ................................................................................................................ 7
1.2 About this documentation ................................................................................................... 7
1.3 Documentation on the internet............................................................................................ 8
1.3.1 Documentation overview SINUMERIK ONE ........................................................................... 8
1.3.2 Documentation overview SINUMERIK operator components ................................................. 9
1.4 Feedback on the technical documentation ........................................................................... 9
1.5 mySupport documentation .................................................................................................. 9
1.6 Service and Support........................................................................................................... 10
1.7 Important product information .......................................................................................... 12
2 Fundamental safety instructions......................................................................................................... 13
2.1 General safety instructions................................................................................................. 13
2.2 Equipment damage due to electric 󹪝elds or electrostatic discharge ..................................... 16
2.3 Warranty and liability for application examples ................................................................... 17
2.4 Security information .......................................................................................................... 17
2.5 Residual risks of power drive systems ................................................................................. 18
3 System overview.................................................................................................................................. 21
3.1 Application ........................................................................................................................ 21
3.2 System con󹪝guration ......................................................................................................... 22
3.3 Variants ............................................................................................................................. 25
3.4 Ordering data .................................................................................................................... 25
4 Description........................................................................................................................................... 27
4.1 Characteristics ................................................................................................................... 27
4.2 Illustration ......................................................................................................................... 28
4.3 Type plates ........................................................................................................................ 30
4.4 Operator control and display elements ............................................................................... 33
4.4.1 Overview of operating and display elements ...................................................................... 33
4.4.2 LED displays....................................................................................................................... 34
4.4.3 7-segment display.............................................................................................................. 37
4.4.4 Start-up and mode selector switch ..................................................................................... 38
4.4.5 RESET button ..................................................................................................................... 40
4.4.6 DIAG button....................................................................................................................... 40
5 Application planning ........................................................................................................................... 41
5.1 Supplementary electrical conditions................................................................................... 41
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5.1.1 Grounding concept ............................................................................................................ 41
5.1.2 RI suppression measures .................................................................................................... 42
5.1.3 EMC limit values in South Korea ......................................................................................... 43
5.1.4 EMF assessments for 24 V components .............................................................................. 43
5.1.5 EC Declaration of Conformity ............................................................................................. 43
5.2 Climatic and mechanical environmental conditions ............................................................ 43
5.2.1 Shipping and storage conditions ........................................................................................ 43
5.2.2 Operating conditions ......................................................................................................... 45
6 Dimension drawings............................................................................................................................ 47
6.1 NCU 1740 dimension drawing............................................................................................ 47
7 Installation........................................................................................................................................... 49
7.1 Safety instructions ............................................................................................................. 49
7.2 Designs ............................................................................................................................. 50
7.3 Fix the NCU using spacers .................................................................................................. 51
7.4 Mounting the NCU without spacers.................................................................................... 51
8 Connecting .......................................................................................................................................... 53
8.1 Overview........................................................................................................................... 53
8.2 Communication services and used port numbers................................................................ 55
8.3 Safety information for wiring ............................................................................................. 58
8.4 Opening the front cover..................................................................................................... 58
8.5 Power supply ..................................................................................................................... 60
8.5.1 Application ........................................................................................................................ 60
8.5.2 Requirements for the power supply .................................................................................... 64
8.6 DRIVE-CLiQ components .................................................................................................... 65
8.6.1 Application ........................................................................................................................ 65
8.6.2 Connectable DRIVE-CLiQ components ................................................................................ 66
8.7 Use of Ethernet interfaces .................................................................................................. 68
8.8 PROFINET........................................................................................................................... 71
8.9 PROFIBUS DP...................................................................................................................... 73
8.9.1 Application ........................................................................................................................ 73
8.9.2 PROFIBUS cables and connectors........................................................................................ 75
8.9.3 Connection components in PROFIBUS................................................................................. 76
8.9.4 Rules for the laying of PROFIBUS cables .............................................................................. 76
8.9.5 Connecting PROFIBUS DP ................................................................................................... 77
8.9.6 Disconnecting stations from the PROFIBUS ......................................................................... 78
8.10 Digital inputs/outputs......................................................................................................... 78
8.10.1 DIO application.................................................................................................................. 78
8.10.2 Block diagram.................................................................................................................... 83
8.10.3 Connecting digital inputs/outputs ...................................................................................... 84
8.10.4 Technical data.................................................................................................................... 86
8.11 USB ................................................................................................................................... 87
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9 Diagnostics .......................................................................................................................................... 89
9.1 Error messages .................................................................................................................. 89
10 Service and maintenance .................................................................................................................... 91
10.1 Service and maintenance................................................................................................... 91
11 Technical data...................................................................................................................................... 93
11.1 Technical Data ................................................................................................................... 93
11.2 Standards and approvals .................................................................................................... 94
11.3 Recycling and disposal ....................................................................................................... 95
12 Connectable components.................................................................................................................... 97
12.1 NX10.3/NX15.3 ................................................................................................................. 97
12.1.1 Description ........................................................................................................................ 97
12.1.2 Dimension drawing.......................................................................................................... 101
12.1.3 Mounting ........................................................................................................................ 102
12.1.4 Connection...................................................................................................................... 104
12.1.5 Technical Data ................................................................................................................. 109
12.2 PP 72/48D PN................................................................................................................... 109
12.2.1 Description ...................................................................................................................... 109
12.2.2 Mounting ........................................................................................................................ 112
12.2.3 Connecting...................................................................................................................... 114
12.2.3.1 Interface overview ........................................................................................................... 114
12.2.3.2 X1 power supply.............................................................................................................. 114
12.2.3.3 X2 PROFINET.................................................................................................................... 117
12.2.3.4 X111, X222 and X333 digital inputs/outputs .................................................................... 119
12.2.4 Parameterization.............................................................................................................. 124
12.2.4.1 Input / output images....................................................................................................... 124
12.2.4.2 Diagnostics via input image ............................................................................................. 126
12.2.5 Technical data.................................................................................................................. 127
12.3 PP 72/48D PN 2/2A PN...................................................................................................... 127
12.3.1 Description ...................................................................................................................... 127
12.3.2 Dimension drawing.......................................................................................................... 131
12.3.3 Mounting ........................................................................................................................ 131
12.3.4 Connecting...................................................................................................................... 132
12.3.4.1 Interface overview ........................................................................................................... 132
12.3.4.2 X1 power supply.............................................................................................................. 133
12.3.4.3 X2 PROFINET.................................................................................................................... 135
12.3.4.4 X111, X222 and X333 digital inputs/outputs .................................................................... 138
12.3.4.5 Analog X3 inputs/outputs................................................................................................. 143
12.3.5 Parameterization.............................................................................................................. 147
12.3.5.1 Input / output images....................................................................................................... 147
12.3.5.2 Assigning parameters to the analog inputs / outputs......................................................... 149
12.3.5.3 Analog value representation ............................................................................................ 151
12.3.5.4 Diagnostics via input image ............................................................................................. 153
12.3.6 Technical data.................................................................................................................. 155
13 Spare parts/accessories...................................................................................................................... 157
13.1 SD card............................................................................................................................ 157
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13.1.1 Properties of the SD card.................................................................................................. 157
13.1.2 Inserting the SD card........................................................................................................ 157
14 Safety symbols................................................................................................................................... 159
A Appendix............................................................................................................................................ 161
A.1 Abbreviations .................................................................................................................. 161
Index .................................................................................................................................................. 163
Table of contents
NCU 1740
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Introduction 1
1.1 About SINUMERIK
From simple, standardized CNC machines to premium modular machine designs – the
SINUMERIK CNCs o󹪜er the right solution for all machine concepts. Whether for individual parts
or mass production, simple or complex workpieces – SINUMERIK is the highly dynamic
automation solution, integrated for all areas of production. From prototype construction and
tool design to mold making, all the way to large-scale series production.
Visit our website for more information SINUMERIK (https://www.siemens.com/sinumerik).
1.2 About this documentation
Validity
This Equipment Manual deals with the SINUMERIK NCU 1740 control. This documentation is
valid for SINUMERIK ONE systems.
Target group
This Equipment Manual addresses planners, installers and con󹪝guration engineers in the 󹪝eld of
automation technology. The Equipment Manual enables the target group to install, assemble,
test, and operate the device professionally and safely.
Structure
The documentation provides information about components and functions of the NCU 1740.
• Chapter "System overview" provides general information on the system, system
con󹪝guration, versions and order data.
• Chapter "Description" contains general information about the device, such as appearance,
features, operating and display elements as well as interfaces.
• Chapter "Application planning" includes information on electrical constraints as well as
climatic/mechanical ambient conditions.
• Chapter "Connecting" describes the pin assignment and the connection of the interfaces.
• Chapter "Diagnostics" includes a selection of fault messages as well as information on fault
recti󹪝cation.
• In addition to the technical speci󹪝cations of the device, chapter "Technical data" contains
information on disposal, as well as on the relevant standards and approvals.
• Chapter "Components that can be connected" contains detailed information on components
"NX10.3/NX15.3", "PP 72/48D PN" as well as "PP 72/48D PN 2/2A PN".
NCU 1740
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Standard scope
This documentation only describes the functionality of the standard version. This may di󹪜er
from the scope of the functionality of the system that is actually supplied. Please refer to the
ordering documentation only for the functionality of the supplied drive system.
It may be possible to execute other functions in the system which are not described in this
documentation. This does not, however, represent an obligation to supply such functions with
a new control or when servicing.
For reasons of clarity, this documentation cannot include all of the detailed information on all
product types. Further, this documentation cannot take into consideration every conceivable
type of installation, operation and service/maintenance.
The machine manufacturer must document any additions or modi󹪝cations they make to the
product themselves.
Websites of third-party companies
This document may contain hyperlinks to third-party websites. Siemens is not responsible for
and shall not be liable for these websites and their content. Siemens has no control over the
information which appears on these websites and is not responsible for the content and
information provided there. The user bears the risk for their use.
1.3 Documentation on the internet
1.3.1 Documentation overview SINUMERIK ONE
Comprehensive documentation about the functions provided in SINUMERIK ONE Version 6.13
and higher is provided in the Documentation overview SINUMERIK ONE (https://
support.industry.siemens.com/cs/ww/en/view/109768483).
You can display documents or download them in PDF and HTML5 format.
Introduction
1.3 Documentation on the internet
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The documentation is divided into the following categories:
• User: Operating
• User: Programming
• Manufacturer/Service: Functions
• Manufacturer/Service: Hardware
• Manufacturer/Service: Con󹪝guration/Setup
• Manufacturer/Service: Safety Integrated
• Information and training
• Manufacturer/Service: SINAMICS
1.3.2 Documentation overview SINUMERIK operator components
Comprehensive documentation about the SINUMERIK operator components is provided in the
Documentation overview SINUMERIK operator components (https://
support.industry.siemens.com/cs/document/109783841/technische-dokumentation-zu-
sinumerik-bedienkomponenten?dti=0&lc=en-WW).
You can display documents or download them in PDF and HTML5 format.
The documentation is divided into the following categories:
• Operator Panels
• Machine control panels
• Machine Pushbutton Panel
• Handheld Unit/Mini handheld devices
• Further operator components
An overview of the most important documents, entries and links to SINUMERIK is provided at
SINUMERIK Overview - Topic Page (https://support.industry.siemens.com/cs/document/
109766201/sinumerik-an-overview-of-the-most-important-documents-and-links?
dti=0&lc=en-WW).
1.4 Feedback on the technical documentation
If you have any questions, suggestions or corrections regarding the technical documentation
which is published in the Siemens Industry Online Support, use the link "Send feedback" link
which appears at the end of the entry.
1.5 mySupport documentation
With the "mySupport documentation" web-based system you can compile your own individual
documentation based on Siemens content, and adapt it for your own machine documentation.
Introduction
1.5 mySupport documentation
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To start the application, click on the "My Documentation" tile on the mySupport homepage
(https://support.industry.siemens.com/cs/ww/en/my):
The con󹪝gured manual can be exported in RTF, PDF or XML format.
Note
Siemens content that supports the mySupport documentation application can be identi󹪝ed by
the presence of the "Con󹪝gure" link.
1.6 Service and Support
Product support
You can 󹪝nd more information about products on the internet:
Product support (https://support.industry.siemens.com/cs/ww/en/)
The following is provided at this address:
• Up-to-date product information (product announcements)
• FAQs (frequently asked questions)
• Manuals
• Downloads
• Newsletters with the latest information about your products
• Global forum for information and best practice sharing between users and specialists
Introduction
1.6 Service and Support
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• Local contact persons via our Contacts at Siemens database (→ "Contact")
• Information about 󹪝eld services, repairs, spare parts, and much more (→ "Field Service")
Technical support
Country-speci󹪝c telephone numbers for technical support are provided on the internet at
address (https://support.industry.siemens.com/cs/ww/en/sc/4868) in the "Contact" area.
If you have any technical questions, please use the online form in the "Support Request" area.
Training
You can 󹪝nd information on SITRAIN at the following address (https://www.siemens.com/
sitrain).
SITRAIN o󹪜ers training courses for automation and drives products, systems and solutions from
Siemens.
Siemens support on the go
With the award-winning "Siemens Industry Online Support" app, you can access more than
300,000 documents for Siemens Industry products – any time and from anywhere. The app can
support you in areas including:
• Resolving problems when implementing a project
• Troubleshooting when faults develop
• Expanding a system or planning a new system
Furthermore, you have access to the Technical Forum and other articles from our experts:
• FAQs
• Application examples
• Manuals
•Certi󹪝cates
• Product announcements and much more
The "Siemens Industry Online Support" app is available for Apple iOS and Android.
Introduction
1.6 Service and Support
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Data matrix code on the nameplate
The data matrix code on the nameplate contains the speci󹪝c device data. This code can be read
with a smartphone and technical information about the device displayed via the "Industry
Online Support" mobile app.
1.7 Important product information
Using OpenSSL
This product can contain the following software:
• Software developed by the OpenSSL project for use in the OpenSSL toolkit
• Cryptographic software created by Eric Young.
• Software developed by Eric Young
You can 󹪝nd more information on the internet:
• OpenSSL (https://www.openssl.org)
• Cryptsoft (https://www.cryptsoft.com)
Compliance with the General Data Protection Regulation
Siemens observes standard data protection principles, in particular the data minimization rules
(privacy by design).
For this product, this means:
The product does not process or store any personal data, only technical function data (e.g. time
stamps). If the user links this data with other data (e.g. shift plans) or if he/she stores person-
related data on the same data medium (e.g. hard disk), thus personalizing this data, he/she must
ensure compliance with the applicable data protection stipulations.
Introduction
1.7 Important product information
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Fundamental safety instructions 2
2.1 General safety instructions
WARNING
Electric shock and danger to life due to other energy sources
Touching live components can result in death or severe injury.
• Only work on electrical devices when you are quali󹪝ed for this job.
• Always observe the country-speci󹪝c safety rules.
Generally, the following steps apply when establishing safety:
1. Prepare for disconnection. Notify all those who will be a󹪜ected by the procedure.
2. Isolate the drive system from the power supply and take measures to prevent it being
switched back on again.
3. Wait until the discharge time speci󹪝ed on the warning labels has elapsed.
4. Check that there is no voltage between any of the power connections, and between any of
the power connections and the protective conductor connection.
5. Check whether the existing auxiliary supply circuits are de-energized.
6. Ensure that the motors cannot move.
7. Identify all other dangerous energy sources, e.g. compressed air, hydraulic systems, or
water. Switch the energy sources to a safe state.
8. Check that the correct drive system is completely locked.
After you have completed the work, restore the operational readiness in the inverse sequence.
WARNING
Electric shock due to connection to an unsuitable power supply
When equipment is connected to an unsuitable power supply, exposed components may carry
a hazardous voltage. Contact with hazardous voltage can result in severe injury or death.
• Only use power supplies that provide SELV (Safety Extra Low Voltage) or PELV- (Protective
Extra Low Voltage) output voltages for all connections and terminals of the electronics
modules.
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WARNING
Electric shock due to equipment damage
Improper handling may cause damage to equipment. For damaged devices, hazardous
voltages can be present at the enclosure or at exposed components; if touched, this can result
in death or severe injury.
• Ensure compliance with the limit values speci󹪝ed in the technical data during transport,
storage and operation.
• Do not use any damaged devices.
WARNING
Electric shock due to unconnected cable shields
Hazardous touch voltages can occur through capacitive cross-coupling due to unconnected
cable shields.
• As a minimum, connect cable shields and the cores of cables that are not used at one end
at the grounded housing potential.
WARNING
Electric shock if there is no ground connection
For missing or incorrectly implemented protective conductor connection for devices with
protection class I, high voltages can be present at open, exposed parts, which when touched,
can result in death or severe injury.
• Ground the device in compliance with the applicable regulations.
NOTICE
Damage to equipment due to unsuitable tightening tools.
Unsuitable tightening tools or fastening methods can damage the screws of the equipment.
• Be sure to only use screwdrivers which exactly match the heads of the screws.
• Tighten the screws with the torque speci󹪝ed in the technical documentation.
• Use a torque wrench or a mechanical precision nut runner with a dynamic torque sensor and
speed limitation system.
Fundamental safety instructions
2.1 General safety instructions
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WARNING
Spread of 󹪝re from built-in devices
In the event of 󹪝re outbreak, the enclosures of built-in devices cannot prevent the escape of
󹪝re and smoke. This can result in serious personal injury or property damage.
• Install built-in units in a suitable metal cabinet in such a way that personnel are protected
against 󹪝re and smoke, or take other appropriate measures to protect personnel.
• Ensure that smoke can only escape via controlled and monitored paths.
WARNING
Unexpected movement of machines caused by radio devices or mobile phones
Using radio devices or mobile telephones in the immediate vicinity of the components can
result in equipment malfunction. Malfunctions may impair the functional safety of machines
and can therefore put people in danger or lead to property damage.
• Therefore, if you move closer than 20 cm to the components, be sure to switch o󹪜 radio
devices or mobile telephones.
• Use the "SIEMENS Industry Online Support app" only on equipment that has already been
switched o󹪜.
WARNING
Fire due to inadequate ventilation clearances
Inadequate ventilation clearances can cause overheating of components with subsequent 󹪝re
and smoke. This can cause severe injury or even death. This can also result in increased
downtime and reduced service lives for devices/systems.
• Ensure compliance with the speci󹪝ed minimum clearance as ventilation clearance for the
respective component.
NOTICE
Overheating due to inadmissible mounting position
The device may overheat and therefore be damaged if mounted in an inadmissible position.
• Only operate the device in admissible mounting positions.
Fundamental safety instructions
2.1 General safety instructions
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WARNING
Unexpected movement of machines caused by inactive safety functions
Inactive or non-adapted safety functions can trigger unexpected machine movements that
may result in serious injury or death.
• Observe the information in the appropriate product documentation before commissioning.
• Carry out a safety inspection for functions relevant to safety on the entire system, including
all safety-related components.
• Ensure that the safety functions used in your drives and automation tasks are adjusted and
activated through appropriate parameterizing.
• Perform a function test.
• Only put your plant into live operation once you have guaranteed that the functions
relevant to safety are running correctly.
Note
Important safety notices for Safety Integrated functions
If you want to use Safety Integrated functions, you must observe the safety notices in the Safety
Integrated manuals.
2.2 Equipment damage due to electric 󹪝elds or electrostatic discharge
Electrostatic sensitive devices (ESD) are individual components, integrated circuits, modules or
devices that may be damaged by either electric 󹪝elds or electrostatic discharge.
NOTICE
Equipment damage due to electric 󹪝elds or electrostatic discharge
Electric 󹪝elds or electrostatic discharge can cause malfunctions through damaged individual
components, integrated circuits, modules or devices.
• Only pack, store, transport and send electronic components, modules or devices in their
original packaging or in other suitable materials, e.g conductive foam rubber of aluminum
foil.
• Only touch components, modules and devices when you are grounded by one of the
following methods:
– Wearing an ESD wrist strap
– Wearing ESD shoes or ESD grounding straps in ESD areas with conductive 󹪞ooring
• Only place electronic components, modules or devices on conductive surfaces (table with
ESD surface, conductive ESD foam, ESD packaging, ESD transport container).
Fundamental safety instructions
2.2 Equipment damage due to electric 󹪝elds or electrostatic discharge
NCU 1740
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2.3 Warranty and liability for application examples
Application examples are not binding and do not claim to be complete regarding con󹪝guration,
equipment or any eventuality which may arise. Application examples do not represent speci󹪝c
customer solutions, but are only intended to provide support for typical tasks.
As the user you yourself are responsible for ensuring that the products described are operated
correctly. Application examples do not relieve you of your responsibility for safe handling when
using, installing, operating and maintaining the equipment.
2.4 Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is necessary
to implement – and continuously maintain – a holistic, state-of-the-art industrial security
concept. Siemens’ products and solutions constitute one element of such a concept.
Customers are responsible for preventing unauthorized access to their plants, systems,
machines and networks. Such systems, machines and components should only be connected to
an enterprise network or the internet if and to the extent such a connection is necessary and only
when appropriate security measures (e.g. 󹪝rewalls and/or network segmentation) are in place.
For additional information on industrial security measures that may be implemented, please
visit
https://www.siemens.com/industrialsecurity (https://www.siemens.com/industrialsecurity).
Siemens’ products and solutions undergo continuous development to make them more secure.
Siemens strongly recommends that product updates are applied as soon as they are available
and that the latest product versions are used. Use of product versions that are no longer
supported, and failure to apply the latest updates may increase customer’s exposure to cyber
threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS Feed
under
https://www.siemens.com/industrialsecurity (https://new.siemens.com/global/en/products/
services/cert.html#Subscriptions).
Further information is provided on the Internet:
Fundamental safety instructions
2.4 Security information
NCU 1740
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Industrial Security Con󹪝guration Manual (https://support.industry.siemens.com/cs/ww/en/
view/108862708)
WARNING
Unsafe operating states resulting from software manipulation
Software manipulations, e.g. viruses, Trojans, or worms, can cause unsafe operating states in
your system that may lead to death, serious injury, and property damage.
• Keep the software up to date.
• Incorporate the automation and drive components into a holistic, state-of-the-art industrial
security concept for the installation or machine.
• Make sure that you include all installed products into the holistic industrial security concept.
• Protect 󹪝les stored on exchangeable storage media from malicious software by with suitable
protection measures, e.g. virus scanners.
• On completion of commissioning, check all security-related settings.
2.5 Residual risks of power drive systems
When assessing the machine- or system-related risk in accordance with the respective local
regulations (e.g., EC Machinery Directive), the machine manufacturer or system installer must
take into account the following residual risks emanating from the control and drive components
of a drive system:
1. Unintentional movements of driven machine or system components during commissioning,
operation, maintenance, and repairs caused by, for example,
– Hardware and/or software errors in the sensors, control system, actuators, and cables and
connections
– Response times of the control system and of the drive
– Operation and/or environmental conditions outside the speci󹪝cation
– Condensation/conductive contamination
– Parameterization, programming, cabling, and installation errors
– Use of wireless devices/mobile phones in the immediate vicinity of electronic components
– External in󹪞uences/damage
– X-ray, ionizing radiation and cosmic radiation
2. Unusually high temperatures, including open 󹪞ames, as well as emissions of light, noise,
particles, gases, etc., can occur inside and outside the components under fault conditions
caused by, for example:
– Component failure
– Software errors
– Operation and/or environmental conditions outside the speci󹪝cation
– External in󹪞uences/damage
Fundamental safety instructions
2.5 Residual risks of power drive systems
NCU 1740
18 Equipment Manual, 10/2021, A5E51087503B AA

3. Hazardous shock voltages caused by, for example:
– Component failure
–In󹪞uence during electrostatic charging
– Induction of voltages in moving motors
– Operation and/or environmental conditions outside the speci󹪝cation
– Condensation/conductive contamination
– External in󹪞uences/damage
4. Electrical, magnetic and electromagnetic 󹪝elds generated in operation that can pose a risk to
people with a pacemaker, implants or metal replacement joints, etc., if they are too close
5. Release of environmental pollutants or emissions as a result of improper operation of the
system and/or failure to dispose of components safely and correctly
6. In󹪞uence of network-connected communication systems, e.g. ripple-control transmitters or
data communication via the network
For more information about the residual risks of the drive system components, see the relevant
sections in the technical user documentation.
Fundamental safety instructions
2.5 Residual risks of power drive systems
NCU 1740
Equipment Manual, 10/2021, A5E51087503B AA 19

Fundamental safety instructions
2.5 Residual risks of power drive systems
NCU 1740
20 Equipment Manual, 10/2021, A5E51087503B AA