Siemens SINAMICS G120D User manual

Converter with control units CU250D-2
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SINAMICS
SINAMICS G120D
Converter with control units
CU250D-2
Operating Instructions
Edition 04/2015, Firmware V4.7.3
Original instructions
04/2015, FW V4.7.3
A5E34261542B AB
Changes in this manual
Fundamental safety
instructions
1
Introduction
2
Description
3
Installation
4
Commissioning
5
Adapt fieldbus configuration
6
Advanced commissioning
7
Backing up data and series
commissioning
8
Corrective maintenance
9
Alarms, faults and system
messages
10
Technical data
11
Appendix
A

Siemens AG
Division Digital Factory
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E34261542B AB
Ⓟ
06/2015 Subject to change
Copyright © Siemens AG 2012 - 2015.
All rights reserved
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.
Qualified Personnel
The product/system described in this documentation may be operated only by
personnel qualified
for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified 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 identified 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.

Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB 5
Changes in this manual
Notable changes over the 04/2014 edition of the manual
New functions in firmware V4.7 SP3
in Chapter
Moment of inertia estimator
with moment of inertia precontrol
for automatic speed control adaptation
Moment of inertia estimator
(Page 156)
Friction characteristic with automated recording of the opti-
mization of the speed controller
Friction characteristic (Page 153)
An overview of all the new and changed functions in the V4.7 firmware can be found in
Section New and extended functions (Page 357).
Revised descriptions
In Chapter
Factory settings and default settings of the inputs and out-
puts
Connections and cables (Page 41)
Startdrive commissioning tool added Basic commissioning with a PC
(Page 69)
Manual optimization of the speed controller Optimizing the speed controller
(Page 150)
Error correction
in Chapter
Feeder protection of the 400-V power supply of the inverter,
feeder protection for use according to UL standards
Feeder protection of individual invert-
ers (Page 35)
Feeder protection of multiple inverters
(Page 37)

Changes in this manual
Converter with control units CU250D-2
6Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB

Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB 7
Table of contents
Changes in this manual........................................................................................................................... 5
1 Fundamental safety instructions............................................................................................................ 13
1.1 General safety instructions .....................................................................................................13
1.2 Safety instructions for electromagnetic fields (EMF) ..............................................................17
1.3 Handling electrostatic sensitive devices (ESD) ......................................................................17
1.4 Industrial security ....................................................................................................................18
1.5 Residual risks of power drive systems....................................................................................19
2 Introduction........................................................................................................................................... 21
2.1 About the Manual....................................................................................................................21
2.2 Guide through this manual......................................................................................................22
3 Description............................................................................................................................................ 23
3.1 SINAMICS G120D CU250D-2 Inverter...................................................................................23
3.2 Commissioning tools...............................................................................................................25
3.3 Supported motor series...........................................................................................................27
4 Installation ............................................................................................................................................ 29
4.1 Mechanical Installation............................................................................................................29
4.1.1 Drill pattern SINAMICS G120D...............................................................................................30
4.2 Electrical Installation ...............................................................................................................32
4.2.1 Permissible line supplies ........................................................................................................32
4.2.2 Basic EMC Rules ....................................................................................................................33
4.2.3 Overview of the interfaces ......................................................................................................34
4.2.4 Feeder protection of individual inverters.................................................................................35
4.2.5 Feeder protection of multiple inverters ...................................................................................37
4.2.6 24-V power supply with multiple inverters ..............................................................................40
4.2.7 Connections and cables .........................................................................................................41
4.2.8 Star-delta motor connection....................................................................................................49
4.2.9 Connecting the motor holding brake.......................................................................................50
4.2.10 Factory settings of the inputs and outputs..............................................................................51
4.2.11 Default settings of inputs and outputs.....................................................................................52
4.2.12 Connecting the PROFINET interface......................................................................................53
4.2.13 Encoders examples ................................................................................................................53
4.2.14 Grounding converter and motor..............................................................................................54
4.2.15 Connections and interference suppression ............................................................................55
4.2.16 Equipotential bonding .............................................................................................................56
5 Commissioning ..................................................................................................................................... 59
5.1 Commissioning guidelines ......................................................................................................59
5.2 Preparing for commissioning ..................................................................................................60

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Converter with control units CU250D-2
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5.2.1 Which motor fits the converter? ............................................................................................. 61
5.2.2 Introduction, V/f control, vector control .................................................................................. 62
5.2.3 Defining additional requirements for the application.............................................................. 63
5.2.4 Encoder assignment .............................................................................................................. 63
5.3 Basic commissioning with IOP............................................................................................... 65
5.4 Basic commissioning with a PC ............................................................................................. 69
5.4.1 Creating a project................................................................................................................... 70
5.4.2 Transfer inverters connected via USB into the project .......................................................... 70
5.4.3 Go online and start the configuration wizard ......................................................................... 73
5.4.4 Carry-out basic commissioning.............................................................................................. 74
5.4.5 Adapting the encoder data..................................................................................................... 78
5.4.6 Identify motor data ................................................................................................................. 79
5.5 Restoring the factory setting .................................................................................................. 82
5.5.1 Restoring the factory setting .................................................................................................. 82
5.5.2 Resetting the safety functions to the factory setting .............................................................. 83
5.5.3 Restore the settings to the factory settings (without safety functions)................................... 84
6 Adapt fieldbus configuration .................................................................................................................. 87
6.1 Fieldbus versions of the Control Unit ..................................................................................... 87
6.2 PROFIdrive profile for PROFIBUS and PROFINET .............................................................. 88
6.2.1 Cyclic communication ............................................................................................................ 88
6.2.1.1 Positioner: Cyclic communication .......................................................................................... 88
6.2.1.2 Control and status word 1 ...................................................................................................... 91
6.2.1.3 Control and status word 2 ...................................................................................................... 93
6.2.1.4 Control and status word for the positioner ............................................................................. 94
6.2.1.5 Control and status word 1 for the positioner .......................................................................... 96
6.2.1.6 Control and status word 2 for the positioner .......................................................................... 98
6.2.1.7 Control word block selection ................................................................................................ 100
6.2.1.8 Control word MDI mode ....................................................................................................... 101
6.2.1.9 Status word messages......................................................................................................... 102
6.2.1.10 Function block FB283 .......................................................................................................... 103
6.2.1.11 Extend telegrams and change signal interconnection ......................................................... 103
6.2.1.12 Slave-to-slave communication............................................................................................. 104
6.2.2 Acyclically reading and writing inverter parameters............................................................. 104
6.3 Communication via PROFINET ........................................................................................... 105
6.3.1 What do you need for communication via PROFINET? ...................................................... 106
6.3.2 Integrating converters into PROFINET ................................................................................ 106
6.3.3 Configuring communication to the control ........................................................................... 107
6.3.4 Installing GSDML ................................................................................................................. 108
6.3.5 Select telegram .................................................................................................................... 108
6.3.6 Activating diagnostics via the control................................................................................... 109
6.4 Communication via PROFIBUS ........................................................................................... 110
6.4.1 What do you need for communication via PROFIBUS? ...................................................... 110
6.4.2 Integrating the inverter in PROFIBUS.................................................................................. 110
6.4.3 Configuring the communication using SIMATIC S7 control................................................. 111
6.4.4 Setting the address .............................................................................................................. 111
6.4.5 Select telegram .................................................................................................................... 112
7 Advanced commissioning.....................................................................................................................113

Table of contents
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB 9
7.1 Overview of the converter functions .....................................................................................113
7.2 Inverter control ......................................................................................................................115
7.2.1 Adapt inputs and outputs ......................................................................................................115
7.2.1.1 Digital inputs .........................................................................................................................116
7.2.1.2 Fail-safe digital input .............................................................................................................117
7.2.1.3 Digital outputs .......................................................................................................................119
7.2.2 Switching the motor on and off .............................................................................................120
7.2.3 Running the motor in jog mode (JOG function) ....................................................................122
7.2.4 Switching over the inverter control (command data set) ......................................................124
7.3 Setpoints ...............................................................................................................................126
7.3.1 Overview ...............................................................................................................................126
7.3.2 Specifying the setpoint via the fieldbus.................................................................................127
7.3.3 Motorized potentiometer as setpoint source.........................................................................128
7.3.4 Fixed speed as setpoint source ............................................................................................130
7.4 Setpoint calculation...............................................................................................................133
7.4.1 Overview of setpoint preparation ..........................................................................................133
7.4.2 Invert setpoint .......................................................................................................................134
7.4.3 Inhibit direction of rotation.....................................................................................................135
7.4.4 Skip frequency bands and minimum speed..........................................................................136
7.4.5 Speed limitation ....................................................................................................................137
7.4.6 Ramp-function generator ......................................................................................................138
7.5 Motor control .........................................................................................................................143
7.5.1 V/f control..............................................................................................................................143
7.5.1.1 Characteristics of U/f control.................................................................................................144
7.5.1.2 Selecting the U/f characteristic .............................................................................................145
7.5.1.3 Optimizing motor starting......................................................................................................145
7.5.2 Vector control with speed controller......................................................................................147
7.5.2.1 Checking the encoder signal ................................................................................................148
7.5.2.2 Select motor control..............................................................................................................149
7.5.2.3 Optimizing the speed controller ............................................................................................150
7.5.2.4 Advanced settings.................................................................................................................152
7.5.2.5 Friction characteristic............................................................................................................153
7.5.2.6 Moment of inertia estimator ..................................................................................................156
7.5.3 Operating the converter without position controller ..............................................................161
7.6 Basic positioner and position control ....................................................................................163
7.6.1 Basic positioner and position control ....................................................................................
163
7.6.2 Commissioning sequence.....................................................................................................164
7.6.3 Normalizing the encoder signal ............................................................................................165
7.6.3.1 Define the resolution .............................................................................................................165
7.6.3.2 Modulo range setting ............................................................................................................167
7.6.3.3 Checking the actual position value .......................................................................................169
7.6.3.4 Setting the backlash..............................................................................................................170
7.6.4 Limiting the positioning range ...............................................................................................172
7.6.5 Setting the position controller ...............................................................................................174
7.6.5.1 Precontrol and gain...............................................................................................................174
7.6.5.2 Optimizing the position controller..........................................................................................175
7.6.5.3 Limiting the traversing profile................................................................................................178
7.6.6 Setting the monitoring functions ...........................................................................................180
7.6.6.1 Standstill and positioning monitoring ....................................................................................180
7.6.6.2 Following error monitoring ....................................................................................................182

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10 Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
7.6.6.3 Cam sequencer.................................................................................................................... 184
7.6.7 Referencing.......................................................................................................................... 185
7.6.7.1 Referencing methods........................................................................................................... 185
7.6.7.2 Setting the reference point approach................................................................................... 187
7.6.7.3 Setting the flying referencing ............................................................................................... 193
7.6.7.4 Set reference point............................................................................................................... 198
7.6.7.5 Absolute encoder adjustment .............................................................................................. 200
7.6.8 Jogging................................................................................................................................. 202
7.6.8.1 Jog velocity .......................................................................................................................... 202
7.6.8.2 Incremental jogging.............................................................................................................. 203
7.6.8.3 Setting jogging ..................................................................................................................... 203
7.6.9 Traversing blocks ................................................................................................................. 205
7.6.9.1 Travel to fixed stop............................................................................................................... 213
7.6.9.2 Examples ............................................................................................................................. 218
7.6.10 Direct setpoint input (MDI) ................................................................................................... 220
7.7 Protection functions ............................................................................................................. 226
7.7.1 Inverter temperature monitoring........................................................................................... 226
7.7.2 Motor temperature monitoring using a temperature sensor ................................................ 229
7.7.3 Protecting the motor by calculating the motor temperature................................................. 232
7.7.4 Overcurrent protection ......................................................................................................... 234
7.8 Application-specific functions............................................................................................... 235
7.8.1 Functions that match the application ................................................................................... 235
7.8.2 Unit changeover ................................................................................................................... 236
7.8.2.1 Changing over the motor standard ...................................................................................... 237
7.8.2.2 Changing over the unit system ............................................................................................ 238
7.8.2.3 Switching units with STARTER............................................................................................ 238
7.8.3 Electrically braking the motor............................................................................................... 240
7.8.3.1 DC braking ........................................................................................................................... 240
7.8.3.2 Braking with regenerative feedback to the line .................................................................... 243
7.8.4 Motor holding brake ............................................................................................................. 244
7.8.5 System protection ................................................................................................................ 248
7.8.5.1 No-load monitoring, blocking protection, stall protection ..................................................... 249
7.8.5.2 Load monitoring ................................................................................................................... 250
7.9 Safe Torque Off (STO) safety function ................................................................................ 255
7.9.1 Function description............................................................................................................. 255
7.9.2 Prerequisite for STO use ..................................................................................................... 257
7.9.3 Commissioning STO ............................................................................................................ 257
7.9.3.1 Commissioning tools............................................................................................................ 257
7.9.3.2 Protection of the settings from unauthorized changes......................................................... 258
7.9.3.3 Configuring safety functions................................................................................................. 258
7.9.3.4 Interconnecting the "STO active" signal............................................................................... 259
7.9.3.5 Setting the filter for safety-related inputs ............................................................................. 260
7.9.3.6 Setting the forced checking procedure (test stop) ............................................................... 263
7.9.3.7 Activate settings and check digital inputs ............................................................................ 264
7.9.3.8 Acceptance - completion of commissioning......................................................................... 268
7.10 Switchover between different settings ................................................................................. 272
8 Backing up data and series commissioning ..........................................................................................275
8.1 Saving settings on a memory card....................................................................................... 276
8.1.1 Saving settings to the memory card..................................................................................... 277

Table of contents
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB 11
8.1.2 Transferring the settings from the memory card...................................................................278
8.1.3 Safely remove the memory card...........................................................................................278
8.2 Backing up and transferring settings using STARTER.........................................................281
8.3 Saving settings and transferring them using an operator panel ...........................................285
8.4 Other ways to back up settings.............................................................................................286
8.5 Write and know-how protection ............................................................................................287
8.5.1 Write protection.....................................................................................................................287
8.5.2 Know-how protection ............................................................................................................289
8.5.2.1 Settings for know-how protection..........................................................................................291
8.5.2.2 Generating an exception list for know-how protection..........................................................293
9 Corrective maintenance ...................................................................................................................... 295
9.1 Replacing inverter components ............................................................................................295
9.1.1 Spare parts - external fan .....................................................................................................295
9.1.2 Overview of replacing converter components ......................................................................296
9.1.3 Replacing a Control Unit with enabled safety function .........................................................297
9.1.4 Replacing the Control Unit without the safety functions enabled .........................................301
9.1.5 Replacing the Control Unit without data backup...................................................................304
9.1.6 Replacing a Control Unit with active know-how protection...................................................305
9.1.7 Replacing a Power Module with enabled safety function .....................................................307
9.1.8 Replacing a Power Module without the safety function being enabled ................................308
9.2 Firmware upgrade and downgrade.......................................................................................309
9.2.1 Upgrading firmware...............................................................................................................310
9.2.2 Firmware downgrade ............................................................................................................312
9.2.3 Correcting a failed firmware upgrade or downgrade ............................................................314
9.3 Reduced acceptance after component replacement and firmware change .........................315
9.4 If the converter no longer responds ......................................................................................316
10 Alarms, faults and system messages .................................................................................................. 319
10.1 Alarms...................................................................................................................................319
10.2 Faults ....................................................................................................................................323
10.3 Status LED overview.............................................................................................................328
10.4 Identification & maintenance data (I&M)...............................................................................330
10.5 System runtime .....................................................................................................................331
10.6 List of alarms and faults........................................................................................................332
11 Technical data .................................................................................................................................... 345
11.1 Performance ratings Control Unit .........................................................................................345
11.2 Performance ratings Power Module .....................................................................................347
11.3 SINAMICS G120D specifications .........................................................................................348
11.4 Data regarding the power loss in partial load operation .......................................................349
11.5 Ambient operating conditions ...............................................................................................349
11.6 Current derating - depending on the installation altitude ......................................................350

Table of contents
Converter with control units CU250D-2
12 Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
11.7 Pulse frequency and current reduction ................................................................................ 351
11.8 Standards (PM250D) ........................................................................................................... 352
11.9 Electromagnetic Compatibility.............................................................................................. 353
A Appendix .............................................................................................................................................357
A.1 New and extended functions................................................................................................ 357
A.2 Parameter ............................................................................................................................ 362
A.3 The device trace in STARTER............................................................................................. 365
A.4 Interconnecting signals in the inverter ................................................................................. 368
A.4.1 Fundamentals ...................................................................................................................... 368
A.4.2 Example ............................................................................................................................... 370
A.5 Application Examples........................................................................................................... 372
A.5.1 Setting an absolute encoder ................................................................................................ 372
A.5.2 Connecting the safety-related input ..................................................................................... 376
A.5.3 Connecting fail-safe digital inputs ........................................................................................ 376
A.6 Setting a non standard HTL encoder................................................................................... 377
A.7 Setting a non standard SSI encoder .................................................................................... 378
A.8 Acceptance tests for the safety functions ............................................................................ 381
A.8.1 Recommended acceptance test .......................................................................................... 381
A.8.2 Machine documentation....................................................................................................... 384
A.8.3 Log of the settings for the basic functions, firmware V4.4 ... V4.7 SP2............................... 386
A.9 Manuals and technical support ............................................................................................ 387
A.9.1 Manuals for your inverter ..................................................................................................... 387
A.9.2 Configuring support.............................................................................................................. 388
A.9.3 Product Support ................................................................................................................... 388
A.10 Mistakes and improvements ................................................................................................ 389
Index ...................................................................................................................................................391

Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB 13
Fundamental safety instructions
1
1.1
General safety instructions
DANGER
Danger to life due to live parts and other energy sources
Death or serious injury can result when live parts are touched.
•Only work on electrical devices when you are qualified for this job.
•Always observe the country-specific safety rules.
Generally, six steps apply when establishing safety:
1. Prepare for shutdown and notify all those who will be affected by the procedure.
2. Disconnect the machine from the supply.
–Switch off the machine.
–Wait until the discharge time specified on the warning labels has elapsed.
–Check that it really is in a no-voltage condition, from phase conductor to phase
conductor and phase conductor to protective conductor.
–Check whether the existing auxiliary supply circuits are de-energized.
–Ensure that the motors cannot move.
3. Identify all other dangerous energy sources, e.g. compressed air, hydraulic systems, or
water.
4. Isolate or neutralize all hazardous energy sources by closing switches, grounding or
short-circuiting or closing valves, for example.
5. Secure the energy sources against switching on again.
6. Ensure that the correct machine is completely interlocked.
After you have completed the work, restore the operational readiness in the inverse
sequence.
WARNING
Danger to life through a hazardous voltage when connecting an unsuitable power supply
Touching live components can result in death or severe injury.
•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.

Fundamental safety instructions
1.1 General safety instructions
Converter with control units CU250D-2
14 Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
WARNING
Danger to life when live parts are touched on damaged devices
Improper handling of devices can cause damage.
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 specified in the technical data during transport,
storage and operation.
•Do not use any damaged devices.
WARNING
Danger to life through 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 conductors of power cables that are not
used (e.g. brake cores) at one end at the grounded housing potential.
WARNING
Danger to life due to electric shock when not grounded
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.
WARNING
Danger to life due to electric shock when opening plug connections in operation
When opening plug connections in operation, arcs can result in severe injury or death.
•Only open plug connections when the equipment is in a no-voltage state, unless it has
been explicitly stated that they can be opened in operation.
WARNING
Danger to life due to fire spreading if housing is inadequate
Fire and smoke development can cause severe personal injury or material damage.
•Install devices without a protective housing in a metal control cabinet (or protect the
device by another equivalent measure) in such a way that contact with fire is prevented.
•Ensure that smoke can only escape via controlled and monitored paths.

Fundamental safety instructions
1.1 General safety instructions
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB 15
WARNING
Danger to life through unexpected movement of machines when using mobile wireless
devices or mobile phones
Using mobile wireless devices or mobile phones with a transmit power > 1 W closer than
approx. 2 m to the components may cause the devices to malfunction, influence the
functional safety of machines therefore putting people at risk or causing material damage.
•Switch the wireless devices or mobile phones off in the immediate vicinity of the
components.
WARNING
Danger to life due to the motor catching fire in the event of insulation overload
There is higher stress on the motor insulation through a ground fault in an IT system. If the
insulation fails, it is possible that death or severe injury can occur as a result of smoke and
fire.
•Use a monitoring device that signals an insulation fault.
•Correct the fault as quickly as possible so the motor insulation is not overloaded.
WARNING
Danger to life due to fire if overheating occurs because of insufficient ventilation clearances
Inadequate ventilation clearances can cause overheating of components with subsequent
fire 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 specified minimum clearance as ventilation clearance for
the respective component.
WARNING
Danger of an accident occurring due to missing or illegible warning labels
Missing or illegible warning labels can result in accidents involving death or serious injury.
•Check that the warning labels are complete based on the documentation.
•Attach any missing warning labels to the components, in the national language if
necessary.
•Replace illegible warning labels.

Fundamental safety instructions
1.1 General safety instructions
Converter with control units CU250D-2
16 Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
NOTICE
Device damage caused by incorrect voltage/insulation tests
Incorrect voltage/insulation tests can damage the device.
•Before carrying out a voltage/insulation check of the system/machine, disconnect the
devices as all converters and motors have been subject to a high voltage test by the
manufacturer, and therefore it is not necessary to perform an additional test within the
system/machine.
WARNING
Danger to life when safety functions are inactive
Safety functions that are inactive or that have not been adjusted accordingly can cause
operational faults on machines that could lead to 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.
WARNING
Danger to life or malfunctions of the machine as a result of incorrect or changed
parameterization
As a result of incorrect or changed parameterization, machines can malfunction, which in
turn can lead to injuries or death.
•Protect the parameterization (parameter assignments) against unauthorized access.
•Respond to possible malfunctions by applying suitable measures (e.g. EMERGENCY
STOP or EMERGENCY OFF).

Fundamental safety instructions
1.2 Safety instructions for electromagnetic fields (EMF)
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB 17
1.2
Safety instructions for electromagnetic fields (EMF)
WARNING
Danger to life from electromagnetic fields
Electromagnetic fields (EMF) are generated by the operation of electrical power equipment
such as transformers, converters or motors.
People with pacemakers or implants are at a special risk in the immediate vicinity of these
devices/systems.
•Ensure that the persons involved are the necessary distance away (minimum 2 m).
1.3
Handling electrostatic sensitive devices (ESD)
Electrostatic sensitive devices (ESD) are individual components, integrated circuits, modules
or devices that may be damaged by either electric fields or electrostatic discharge.
NOTICE
Damage through electric fields or electrostatic discharge
Electric fields 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 flooring
•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
1.4 Industrial security
Converter with control units CU250D-2
18 Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
1.4
Industrial security
Note
Industrial security
Siemens provides products and solutions with industrial security functions that support the
secure operation o
f plants, solutions, machines, equipment and/or networks. They are
important components in a holistic industrial security concept. With this in mind, Siemens’
products and solutions undergo continuous development. Siemens recommends strongly
that you regul
arly check for product updates.
For the secure operation of Siemens products and solutions, it is necessary to take suitable
preventive action (e.g. cell protection concept) and integrate each component into a holistic,
state
-of-the-art industrial security concept. Third-party products that may be in use should
also be considered. For more information about industrial security, visit this address
(
http://www.siemens.com/industrialsecurity).
To st
ay informed about product updates as they occur, sign up for a product-specific
newsletter. For more information, visit this address (
http://support.automation.siemens.com
).
WARNING
Danger as a result of unsafe operating states resulting from software manipulation
Software manipulation (e.g. by viruses, Trojan horses, malware, worms) can cause unsafe
operating states to develop in your installation which can result in death, severe injuries
and/or material damage.
•Keep the software up to date.
You will find relevant information and newsletters at this address
(http://support.automation.siemens.com).
•Incorporate the automation and drive components into a holistic, state-of-the-art
industrial security concept for the installation or machine.
You will find further information at this address
(http://www.siemens.com/industrialsecurity).
•Make sure that you include all installed products into the holistic industrial security
concept.

Fundamental safety instructions
1.5 Residual risks of power drive systems
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB 19
1.5
Residual risks of power drive systems
The control and drive components of a drive system are approved for industrial and
commercial use in industrial line supplies. Their use in public line supplies requires a
different configuration and/or additional measures.
These components may only be operated in closed housings or in higher-level control
cabinets with protective covers that are closed, and when all of the protective devices are
used.
These components may only be handled by qualified and trained technical personnel who
are knowledgeable and observe all of the safety instructions on the components and in the
associated technical user documentation.
When assessing the machine's risk in accordance with the respective local regulations (e.g.,
EC Machinery Directive), the machine manufacturer 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 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 specification
–Condensation/conductive contamination
–Parameterization, programming, cabling, and installation errors
–Use of wireless devices/mobile phones in the immediate vicinity of the control system
–External influences/damage
2. In the event of a fault, exceptionally high temperatures, including an open fire, as well as
emissions of light, noise, particles, gases, etc. can occur inside and outside the inverter,
e.g.:
–Component failure
–Software errors
–Operation and/or environmental conditions outside the specification
–External influences/damage
Inverters of the Open Type/IP20 degree of protection must be installed in a metal control
cabinet (or protected by another equivalent measure) such that contact with fire inside
and outside the inverter is not possible.

Fundamental safety instructions
1.5 Residual risks of power drive systems
Converter with control units CU250D-2
20 Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
3. Hazardous shock voltages caused by, for example,
–Component failure
–Influence during electrostatic charging
–Induction of voltages in moving motors
–Operation and/or environmental conditions outside the specification
–Condensation/conductive contamination
–External influences/damage
4. Electrical, magnetic and electromagnetic fields 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
Note
The components must be protected against conductive contamination (e.g. by installing them
in a control cabinet with degree of protection IP54 according to IEC 60529 or NEMA 12).
Assuming that conductive contamin
ation at the installation site can definitely be excluded, a
lower degree of cabinet protection may be permitted.
For more information about residual risks of the components in a drive system, see the
relevant sections in the technical user documentation.