Siemens SINAMICS G120D User manual

Operating instructions
Distributed inverter
CU240D-2 Control Unit with encoder evaluation
SINAMICS G120D
10/2020Edition
SINAMICS
www.siemens.com/drives

SINAMICS
SINAMICS G120D
Converter with the control units
CU240D-2
Operating Instructions
Edition 10/2020, 󹪝rmware V4.7 SP13
10/2020, FW V4.7 SP13
A5E34262100B AH
Changes in the current
edition
Fundamental safety
instructions 1
Introduction 2
Description 3
Installation 4
Commissioning 5
Uploading the converter
settings 6
Protecting the converter
settings 7
Advanced commissioning 8
Alarms, faults and system
messages 9
Corrective maintenance 10
Technical data 11
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
A5E34262100B AH
Ⓟ 10/2020 Subject to change
Copyright © Siemens AG 2012 - 2020.
All rights reserved

Changes in the current edition
Essential changes with respect to Edition 04/2018
New functions
Overview of all new and modi󹪝ed functions in 󹪝rmware V4.7 SP13:
Firmware version 4.7 SP13 (Page 343)
Revised descriptions
• Motor overload protection according to IEC/UL 61800-5-1
How do I achieve a motor overload protection in accordance with IEC/UL 61800-5-1?
(Page 267)
• Converter replacement
Uploading the converter settings (Page 97)
Replace Control Unit (Page 306)
Downloading the converter settings (Page 308)
Replacing a Power Module (Page 318)
• Acceptance tests for the safety functions
The acceptance test for safety function "Safe Torque O󹪜" is no longer described in the manual.
Instead we recommend that you use the appropriate wizards in the "Startdrive Advanced"
commissioning tool.
Acceptance test (Page 192)
Converter with the control units CU240D-2
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Changes in the current edition
Converter with the control units CU240D-2
4Operating Instructions, 10/2020, FW V4.7 SP13, A5E34262100B AH

Table of contents
Changes in the current edition.............................................................................................................. 3
1 Fundamental safety instructions......................................................................................................... 11
1.1 General safety instructions................................................................................................. 11
1.2 Equipment damage due to electric 󹪝elds or electrostatic discharge ..................................... 17
1.3 Warranty and liability for application examples ................................................................... 18
1.4 Security information .......................................................................................................... 19
1.5 Residual risks of power drive systems ................................................................................. 20
2 Introduction ......................................................................................................................................... 21
2.1 About the Manual.............................................................................................................. 21
3 Description........................................................................................................................................... 23
3.1 SINAMICS G120D CU240D-2 converter............................................................................... 24
3.2 Directives and standards .................................................................................................... 26
3.3 Motors and multi-motor drives that can be operated........................................................... 28
4 Installation........................................................................................................................................... 29
4.1 Mechanical Installation ...................................................................................................... 29
4.2 Electrical Installation.......................................................................................................... 32
4.2.1 Overview of the interfaces ................................................................................................. 32
4.2.2 Permissible line supplies..................................................................................................... 33
4.2.3 Protective conductor .......................................................................................................... 34
4.2.4 Grounding converter and motor ......................................................................................... 36
4.2.5 Basic EMC Rules ................................................................................................................. 38
4.2.6 Connections and interference suppression ......................................................................... 39
4.2.7 Equipotential bonding........................................................................................................ 39
4.2.8 Branch circuit protection of individual converters................................................................ 41
4.2.9 Branch circuit protection of multiple converters.................................................................. 43
4.2.10 24-V power supply with multiple converters....................................................................... 45
4.2.11 Connections and cables ..................................................................................................... 46
4.2.12 Fieldbus interfaces............................................................................................................. 54
4.2.13 Connecting the motor to the converter in a star or delta connection ................................... 54
4.2.14 Connecting the motor holding brake .................................................................................. 55
4.2.15 Factory settings of the inputs and outputs .......................................................................... 57
4.2.16 Default settings of inputs and outputs................................................................................ 58
4.2.17 Failsafe digital input........................................................................................................... 66
4.3 Connecting the converter to PROFINET............................................................................... 68
4.3.1 Connecting the PROFINET interface.................................................................................... 69
4.3.2 What do you have to set for communication via PROFINET?................................................. 70
4.3.3 Installing GSDML ............................................................................................................... 71
4.4 Connecting the converter to PROFIBUS............................................................................... 72
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4.4.1 What do you have to set for communication via PROFIBUS? ................................................ 72
4.4.2 Integrating the converter in PROFIBUS................................................................................ 73
4.4.3 Installing the GSD .............................................................................................................. 73
4.4.4 Set the PROFIBUS address................................................................................................... 74
5 Commissioning .................................................................................................................................... 75
5.1 Commissioning guidelines ................................................................................................. 75
5.2 Commissioning tools.......................................................................................................... 76
5.3 Preparing for commissioning.............................................................................................. 78
5.3.1 Converter factory setting.................................................................................................... 78
5.3.2 Selecting the control mode ................................................................................................ 80
5.4 Quick commissioning with the IOP-2 .................................................................................. 82
5.5 Quick commissioning with a PC.......................................................................................... 86
5.5.1 Creating a project .............................................................................................................. 86
5.5.2 Transfer converters connected via USB into the project ....................................................... 86
5.5.3 Carrying out quick commissioning...................................................................................... 87
5.5.4 Adapting the encoder data................................................................................................. 89
5.5.5 Identify motor data ............................................................................................................ 89
5.6 Restoring the factory setting .............................................................................................. 92
5.6.1 Restoring the factory setting .............................................................................................. 92
5.6.2 Resetting the safety functions to the factory setting............................................................ 92
5.6.3 Restore the settings to the factory settings (without safety functions)................................. 94
5.7 Series commissioning ........................................................................................................ 95
6 Uploading the converter settings ........................................................................................................ 97
6.1 Why does an upload make sense?....................................................................................... 97
6.2 Uploading to the memory card........................................................................................... 98
6.2.1 Recommended memory cards............................................................................................ 98
6.2.2 Automatic upload .............................................................................................................. 99
6.2.3 Message for a memory card that is not inserted................................................................ 100
6.2.4 Manual upload with Startdrive ......................................................................................... 100
6.2.5 Safely remove the memory card with Startdrive................................................................ 102
6.3 Upload to a PC using Startdrive ........................................................................................ 103
6.4 More options for the upload............................................................................................. 104
7 Protecting the converter settings ...................................................................................................... 105
7.1 Write protection............................................................................................................... 105
7.2 Know-how protection ...................................................................................................... 107
7.2.1 Extending the exception list for know-how protection ...................................................... 111
7.2.2 Activating and deactivating know-how protection ............................................................ 112
8 Advanced commissioning.................................................................................................................. 115
8.1 Overview of the converter functions................................................................................. 115
8.2 Brief description of the parameters................................................................................... 118
8.3 Sequence control when switching the motor on and o󹪜.................................................... 119
8.4 Adapt the default setting of the terminal strip .................................................................. 122
Table of contents
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8.4.1 Digital inputs ................................................................................................................... 123
8.4.2 Analog inputs as digital inputs ......................................................................................... 124
8.4.3 Failsafe digital input......................................................................................................... 125
8.4.4 Digital outputs................................................................................................................. 125
8.4.5 Analog inputs .................................................................................................................. 127
8.4.6 Adjusting characteristics for analog input ......................................................................... 128
8.4.7 Setting the deadband....................................................................................................... 129
8.5 Drive control via PROFIBUS or PROFINET ........................................................................... 131
8.5.1 Receive data and send data.............................................................................................. 131
8.5.2 Telegrams........................................................................................................................ 132
8.5.3 Control and status word 1 ................................................................................................ 137
8.5.4 Control and status word 3 ................................................................................................ 140
8.5.5 NAMUR message word..................................................................................................... 142
8.5.6 Parameter channel........................................................................................................... 143
8.5.7 Examples......................................................................................................................... 151
8.5.8 Expanding or freely interconnecting telegrams................................................................. 153
8.5.9 Slave-to-slave communication.......................................................................................... 156
8.5.10 Acyclically reading and writing converter parameters........................................................ 156
8.6 Jogging ........................................................................................................................... 157
8.7 Limit position control....................................................................................................... 159
8.8 Switching over the drive control (command data set) ....................................................... 163
8.9 Motor holding brake ........................................................................................................ 166
8.10 Free function blocks......................................................................................................... 171
8.10.1 Overview......................................................................................................................... 171
8.10.2 Further information ......................................................................................................... 172
8.11 Selecting physical units.................................................................................................... 173
8.11.1 Motor standard................................................................................................................ 173
8.11.2 Unit system ..................................................................................................................... 173
8.11.3 Technological unit of the technology controller ................................................................ 175
8.11.4 Setting the system of units and technology unit ............................................................... 176
8.12 Safe Torque O󹪜 (STO) safety function ............................................................................... 178
8.12.1 Principle of operation....................................................................................................... 178
8.12.2 EMERGENCY SWITCHING OFF and EMERGENCY STOP........................................................ 180
8.12.3 Commissioning STO ......................................................................................................... 181
8.12.3.1 Commissioning tools........................................................................................................ 181
8.12.3.2 Password ......................................................................................................................... 181
8.12.3.3 Con󹪝guring a safety function ........................................................................................... 183
8.12.3.4 Interconnecting the "STO active" signal............................................................................. 184
8.12.3.5 Signal 󹪝lter for STO selection............................................................................................ 185
8.12.3.6 Setting the signal 󹪝lter for STO selection........................................................................... 187
8.12.3.7 Forced checking procedure .............................................................................................. 187
8.12.3.8 Setting forced checking procedure ................................................................................... 188
8.12.3.9 Complete commissioning................................................................................................. 189
8.12.3.10 Checking the assignment of the digital inputs .................................................................. 190
8.12.3.11 Acceptance test ............................................................................................................... 192
8.13 Setpoints ......................................................................................................................... 194
8.13.1 Overview......................................................................................................................... 194
8.13.2 Analog input as setpoint source ....................................................................................... 195
Table of contents
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8.13.3 Specifying the setpoint via the 󹪝eldbus............................................................................. 196
8.13.4 Motorized potentiometer as setpoint source..................................................................... 197
8.13.5 Fixed speed setpoint as setpoint source............................................................................ 199
8.14 Setpoint processing.......................................................................................................... 204
8.14.1 Overview......................................................................................................................... 204
8.14.2 Invert setpoint ................................................................................................................. 205
8.14.3 Inhibit direction of rotation .............................................................................................. 206
8.14.4 Skip frequency bands and minimum speed....................................................................... 207
8.14.5 Speed limitation .............................................................................................................. 209
8.14.6 Ramp-function generator................................................................................................. 210
8.15 PID technology controller ................................................................................................. 215
8.16 Motor control................................................................................................................... 222
8.16.1 U/f control ....................................................................................................................... 222
8.16.1.1 Characteristics of U/f control ............................................................................................ 226
8.16.1.2 Selecting the U/f characteristic ......................................................................................... 228
8.16.1.3 Optimizing motor starting................................................................................................ 229
8.16.2 Vector control with speed controller ................................................................................. 231
8.16.2.1 Structure of the vector control.......................................................................................... 231
8.16.2.2 Checking the encoder signal ............................................................................................ 233
8.16.2.3 Optimizing the speed controller ....................................................................................... 233
8.16.2.4 Advanced settings............................................................................................................ 236
8.16.2.5 Friction characteristic....................................................................................................... 239
8.16.2.6 Moment of inertia estimator ............................................................................................ 242
8.16.2.7 Pole position identi󹪝cation ............................................................................................... 247
8.16.3 Torque control ................................................................................................................. 248
8.17 Electrically braking the motor........................................................................................... 250
8.17.1 Electrical braking ............................................................................................................. 250
8.17.2 DC braking....................................................................................................................... 251
8.17.3 Braking with regenerative feedback to the line ................................................................. 256
8.18 Overcurrent protection..................................................................................................... 257
8.19 Converter protection using temperature monitoring ......................................................... 258
8.20 Motor protection with temperature sensor ....................................................................... 261
8.21 Motor protection by calculating the temperature .............................................................. 264
8.22 How do I achieve a motor overload protection in accordance with IEC/UL 61800-5-1?........ 267
8.23 Monitoring the driven load............................................................................................... 268
8.23.1 Stall protection ................................................................................................................ 269
8.23.2 No-load monitoring ......................................................................................................... 269
8.23.3 Blocking protection .......................................................................................................... 270
8.23.4 Load monitoring .............................................................................................................. 271
8.23.5 Torque monitoring ........................................................................................................... 272
8.23.6 Rotation monitoring......................................................................................................... 274
8.23.7 Speed deviation monitoring ............................................................................................. 275
8.24 E󹪟ciency optimization..................................................................................................... 277
8.25 Switchover between di󹪜erent settings.............................................................................. 280
Table of contents
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9 Alarms, faults and system messages................................................................................................. 283
9.1 Operating states indicated on LED.................................................................................... 284
9.2 System runtime ............................................................................................................... 288
9.3 Identi󹪝cation & maintenance data (I&M) .......................................................................... 289
9.4 Alarms, alarm bu󹪜er, and alarm history ............................................................................ 290
9.5 Faults, alarm bu󹪜er and alarm history............................................................................... 293
9.6 List of alarms and faults ................................................................................................... 296
10 Corrective maintenance .................................................................................................................... 303
10.1 Replacing the exteral fan.................................................................................................. 305
10.2 Replace Control Unit ........................................................................................................ 306
10.3 Downloading the converter settings................................................................................. 308
10.3.1 Converter without enabled safety functions ..................................................................... 308
10.3.1.1 Automatic download from the memory card .................................................................... 308
10.3.1.2 Manual download from the memory card using Startdrive................................................ 308
10.3.1.3 Download from IOP-2 operator panel ............................................................................... 309
10.3.1.4 Download from the PC using Startdrive ............................................................................ 311
10.3.2 Converter with enabled safety functions........................................................................... 311
10.3.2.1 Automatic download from the memory card .................................................................... 311
10.3.2.2 Download from IOP-2 operator panel ............................................................................... 312
10.3.2.3 Download from the PC using Startdrive ............................................................................ 314
10.3.3 Download with active know-how protection with copy protection..................................... 316
10.4 Replacing a Power Module ............................................................................................... 318
10.5 Firmware upgrade and downgrade................................................................................... 319
10.5.1 Overview......................................................................................................................... 319
10.5.2 Preparing the memory card.............................................................................................. 320
10.5.3 Upgrading 󹪝rmware ......................................................................................................... 320
10.5.4 Firmware downgrade....................................................................................................... 323
10.5.5 Correcting a failed 󹪝rmware upgrade or downgrade ......................................................... 325
10.6 Reduced acceptance test after component replacement and 󹪝rmware change .................. 326
10.7 If the converter no longer responds.................................................................................. 327
11 Technical data.................................................................................................................................... 329
11.1 Performance ratings Control Unit ..................................................................................... 329
11.2 Performance ratings Power Module.................................................................................. 331
11.3 SINAMICS G120D speci󹪝cations........................................................................................ 333
11.4 Data regarding the power loss in partial load operation .................................................... 334
11.5 Ambient operating conditions.......................................................................................... 335
11.6 Current derating as a function of the installation altitude.................................................. 336
11.7 Pulse frequency and current reduction ............................................................................. 337
11.8 Electromagnetic Compatibility.......................................................................................... 338
11.9 Protecting persons from electromagnetic 󹪝elds................................................................. 341
Table of contents
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A Appendix............................................................................................................................................ 343
A.1 New and extended functions............................................................................................ 343
A.1.1 Firmware version 4.7 SP13............................................................................................... 343
A.1.2 Firmware version 4.7 SP10............................................................................................... 344
A.1.3 Firmware version 4.7 SP9................................................................................................. 346
A.1.4 Firmware version 4.7 SP6................................................................................................. 348
A.1.5 Firmware version 4.7 SP3................................................................................................. 349
A.1.6 Firmware version 4.7 ....................................................................................................... 351
A.1.7 Firmware version 4.6 SP6................................................................................................. 352
A.1.8 Firmware version 4.6 ....................................................................................................... 353
A.2 Interconnecting signals in the converter........................................................................... 354
A.2.1 Fundamentals.................................................................................................................. 354
A.2.2 Application example ........................................................................................................ 356
A.3 Connecting a failsafe digital input .................................................................................... 358
A.4 Setting a non standard HTL encoder................................................................................. 359
A.5 Manuals and technical support......................................................................................... 361
A.5.1 Overview of the manuals ................................................................................................. 361
A.5.2 Con󹪝guring support......................................................................................................... 362
A.5.3 Product Support............................................................................................................... 363
Index .................................................................................................................................................. 365
Table of contents
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10 Operating Instructions, 10/2020, FW V4.7 SP13, A5E34262100B AH

Fundamental safety instructions 1
1.1 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
Risk of electric shock and 󹪝re from supply networks with an excessively high impedance
Excessively low short-circuit currents can lead to the protective devices not tripping or tripping
too late, and thus causing electric shock or a 󹪝re.
• In the case of a conductor-conductor or conductor-ground short-circuit, ensure that the
short-circuit current at the point where the converter is connected to the line supply at least
meets the minimum requirements for the response of the protective device used.
• You must use an additional residual-current device (RCD) if a conductor-ground short circuit
does not reach the short-circuit current required for the protective device to respond. The
required short-circuit current can be too low, especially for TT supply systems.
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Operating Instructions, 10/2020, FW V4.7 SP13, A5E34262100B AH 11

WARNING
Risk of electric shock and 󹪝re from supply networks with an excessively low impedance
Excessively high short-circuit currents can lead to the protective devices not being able to
interrupt these short-circuit currents and being destroyed, and thus causing electric shock or a
󹪝re.
• Ensure that the prospective short-circuit current at the line terminal of the converter does
not exceed the breaking capacity (SCCR or Icc) of the protective device used.
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.
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.
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 shield
Hazardous touch voltages can occur through capacitive cross-coupling due to unconnected
cable shields.
• Attach the cable shields at least on one side to the grounded housing potential.
Fundamental safety instructions
1.1 General safety instructions
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WARNING
Arcing when a plug connection is opened during operation
Opening a plug connection when a system is operation can result in arcing that may cause
serious injury or death.
• Only open plug connections when the equipment is in a voltage-free state, unless it has
been explicitly stated that they can be opened in operation.
WARNING
Electric shock due to residual charges in power components
Because of the capacitors, a hazardous voltage is present for up to 5 minutes after the power
supply has been switched o󹪜. Contact with live parts can result in death or serious injury.
• Wait for 5 minutes before you check that the unit really is in a no-voltage condition and start
work.
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.
NOTICE
Property damage due to loose power connections
Insu󹪟cient tightening torques or vibration can result in loose power connections. This can
result in damage due to 󹪝re, device defects or malfunctions.
• Tighten all power connections to the prescribed torque.
• Check all power connections at regular intervals, particularly after equipment has been
transported.
Fundamental safety instructions
1.1 General safety instructions
Converter with the control units CU240D-2
Operating Instructions, 10/2020, FW V4.7 SP13, A5E34262100B AH 13

WARNING
Active implant malfunctions due to electromagnetic 󹪝elds
Converters generate electromagnetic 󹪝elds (EMF) in operation. Electromagnetic 󹪝elds may
interfere with active implants, e.g. pacemakers. People with active implants in the immediate
vicinity of an converter are at risk.
• As the operator of an EMF-emitting installation, assess the individual risks of persons with
active implants.
• Observe the data on EMF emission provided in the product documentation.
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󹪜.
NOTICE
Damage to motor insulation due to excessive voltages
When operated on systems with grounded line conductor or in the event of a ground fault in
the IT system, the motor insulation can be damaged by the higher voltage to ground. If you use
motors that have insulation that is not designed for operation with grounded line conductors,
you must perform the following measures:
• IT system: Use a ground fault monitor and eliminate the fault as quickly as possible.
• TN or TT systems with grounded line conductor: Use an isolating transformer on the line
side.
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.
Fundamental safety instructions
1.1 General safety instructions
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14 Operating Instructions, 10/2020, FW V4.7 SP13, A5E34262100B AH

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.
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
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.
Fundamental safety instructions
1.1 General safety instructions
Converter with the control units CU240D-2
Operating Instructions, 10/2020, FW V4.7 SP13, A5E34262100B AH 15

WARNING
Malfunctions of the machine as a result of incorrect or changed parameter settings
As a result of incorrect or changed parameterization, machines can malfunction, which in turn
can lead to injuries or death.
• Protect the parameterization against unauthorized access.
• Handle possible malfunctions by taking suitable measures, e.g. emergency stop or
emergency o󹪜.
Fundamental safety instructions
1.1 General safety instructions
Converter with the control units CU240D-2
16 Operating Instructions, 10/2020, FW V4.7 SP13, A5E34262100B AH

1.2 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
1.2 Equipment damage due to electric 󹪝elds or electrostatic discharge
Converter with the control units CU240D-2
Operating Instructions, 10/2020, FW V4.7 SP13, A5E34262100B AH 17

1.3 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.
Fundamental safety instructions
1.3 Warranty and liability for application examples
Converter with the control units CU240D-2
18 Operating Instructions, 10/2020, FW V4.7 SP13, A5E34262100B AH