Siemens SINAMICS G120XA User manual

Operating instructions
Infrastructure converters for standard pumps/fans
03/2019Edition
SINAMICS G120XA
SINAMICS
www.siemens.com/drives

SINAMICS
SINAMICS G120XA
SINAMICS G120XA converter
Operating Instructions
Edition 03/2019, firmware V1.0
03/2019, FW V1.0
A5E44751205B AB
Fundamental safety
instructions 1
Description 2
Mounting 3
Wiring 4
Commissioning 5
Advanced commissioning 6
Parameters 7
Saving the settings and
series commissioning 8
Warnings, 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.
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.
Siemens AG
Division Digital Factory
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E44751205B AB
Ⓟ 04/2019 Subject to change
Copyright © Siemens AG 2018 - 2019.
All rights reserved

Table of contents
1 Fundamental safety instructions.................................................................................................................11
1.1 General safety instructions.....................................................................................................11
1.2 Equipment damage due to electric fields or electrostatic discharge ......................................17
1.3 Warranty and liability for application examples ......................................................................18
1.4 Industrial security ...................................................................................................................19
1.5 Residual risks of power drive systems ...................................................................................21
2 Description..................................................................................................................................................23
2.1 About the Manual ...................................................................................................................23
2.2 About the converter................................................................................................................24
2.3 Scope of delivery....................................................................................................................25
2.4 Directives and standards........................................................................................................28
2.5 Device disposal ......................................................................................................................30
2.6 Optional components .............................................................................................................31
2.6.1 Overview ................................................................................................................................31
2.6.2 Output reactor ........................................................................................................................32
2.6.3 Sine-wave filter.......................................................................................................................34
2.6.4 dv/dt filter plus VPL ................................................................................................................35
2.6.5 Operator panel .......................................................................................................................35
2.6.6 SINAMICS G120 Smart Access.............................................................................................36
2.6.7 Shield connection kit for the Power Module (FSD to FSG) ....................................................36
2.7 Motors and multi-motor drives that can be operated..............................................................37
3 Mounting.....................................................................................................................................................39
3.1 EMC-compliant setup of the machine or plant .......................................................................39
3.1.1 Control cabinet .......................................................................................................................40
3.1.2 Cables ....................................................................................................................................41
3.1.3 Electromechanical components .............................................................................................43
3.2 Power losses and air cooling requirements ...........................................................................44
3.3 Mounting the converter ..........................................................................................................45
3.3.1 Basic installation rules ...........................................................................................................45
3.3.2 Dimension drawings and drill patterns ...................................................................................47
3.3.3 Mounting the shield connection kit ........................................................................................49
3.3.4 Additional mounting instructions for FSD ... FSJ....................................................................52
3.3.4.1 Additional mounting instructions, FSD ... FSG.......................................................................52
3.3.4.2 Additional mounting instructions, FSH/FSJ............................................................................53
3.3.5 Mounting the optional components ........................................................................................55
4 Wiring .........................................................................................................................................................57
4.1 Line supply and motor............................................................................................................57
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4.1.1 Permissible line supplies........................................................................................................57
4.1.1.1 TN system ..............................................................................................................................57
4.1.1.2 TT system ..............................................................................................................................58
4.1.1.3 IT system................................................................................................................................59
4.1.1.4 Removing functional grounding of the converter....................................................................60
4.1.2 Minimum cross-section of the protective conductor ...............................................................62
4.1.3 Maximum permissible motor cable length..............................................................................64
4.1.4 Connecting the converter and converter components ...........................................................66
4.1.4.1 Connection overview .............................................................................................................66
4.1.4.2 Connecting inverters ..............................................................................................................68
4.1.4.3 Cable cross-sections and screw tightening torques...............................................................72
4.1.4.4 Cable lugs ..............................................................................................................................73
4.1.4.5 Connecting the cable shields (FSA ... FSG only)...................................................................74
4.1.5 Connecting the motor to the converter in a star or delta connection......................................76
4.2 Control interfaces ...................................................................................................................77
4.2.1 Overview of the interfaces......................................................................................................77
4.2.2 Fieldbus interface allocation...................................................................................................78
4.2.3 Terminal strips........................................................................................................................79
4.2.4 Factory interface settings .......................................................................................................81
4.2.5 Default setting of the interfaces..............................................................................................82
4.2.6 Terminal strip X9 (FSH/FSJ only) ..........................................................................................97
4.2.7 Wiring the terminal strips........................................................................................................99
4.2.8 RS485 interface for the fieldbus...........................................................................................101
5 Commissioning .........................................................................................................................................103
5.1 Commissioning guidelines ...................................................................................................103
5.2 Tools ....................................................................................................................................104
5.3 Preparing for commissioning................................................................................................105
5.3.1 Collecting motor data ...........................................................................................................105
5.3.2 Forming DC link capacitors ..................................................................................................107
5.3.3 Converter factory setting ......................................................................................................108
5.4 Quick commissioning using the BOP-2 operator panel........................................................110
5.4.1 Fitting the BOP-2 to the converter........................................................................................110
5.4.2 Overview of quick commissioning ........................................................................................111
5.4.3 Start quick commissioning and select the application class.................................................112
5.4.4 Selecting an application class ..............................................................................................113
5.4.5 Standard Drive Control.........................................................................................................114
5.4.6 Dynamic Drive Control .........................................................................................................116
5.4.7 Expert...................................................................................................................................118
5.4.8 Identifying the motor data and optimizing the closed-loop control .......................................122
5.5 Restoring the factory settings...............................................................................................124
6 Advanced commissioning.........................................................................................................................125
6.1 Overview of the converter functions.....................................................................................125
6.2 Drive control .........................................................................................................................127
6.2.1 Sequence control when switching the motor on and off.......................................................127
6.2.2 Adapt the default setting of the terminal strips .....................................................................129
6.2.2.1 Digital inputs.........................................................................................................................131
6.2.2.2 Analog input as digital input .................................................................................................134
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6.2.2.3 Digital outputs ......................................................................................................................136
6.2.2.4 Analog inputs .......................................................................................................................139
6.2.2.5 Adjusting characteristics for analog input.............................................................................142
6.2.2.6 Setting the deadband ...........................................................................................................143
6.2.2.7 Analog outputs .....................................................................................................................145
6.2.2.8 Adjusting characteristics for analog output ..........................................................................148
6.2.3 Communication via Modbus RTU ........................................................................................149
6.2.3.1 Activating communication via fieldbus .................................................................................149
6.2.3.2 Setting the address ..............................................................................................................150
6.2.3.3 Parameters for setting communication via Modbus RTU.....................................................150
6.2.3.4 Modbus RTU telegram .........................................................................................................153
6.2.3.5 Baud rates and mapping tables ...........................................................................................154
6.2.3.6 Mapping tables - converter data...........................................................................................156
6.2.3.7 Acyclic communication via Modbus RTU .............................................................................159
6.2.3.8 Write and read access using function codes........................................................................160
6.2.3.9 Reading and writing parameters acyclically via FC 16.........................................................162
6.2.3.10 Communication procedure ...................................................................................................165
6.2.3.11 Application example .............................................................................................................166
6.2.4 Communication via USS ......................................................................................................167
6.2.4.1 Activating communication via fieldbus .................................................................................167
6.2.4.2 Setting the address ..............................................................................................................168
6.2.4.3 Telegram structure ...............................................................................................................168
6.2.4.4 Specify user data of telegram ..............................................................................................169
6.2.4.5 USS process data channel (PZD) ........................................................................................170
6.2.4.6 Telegram monitoring ............................................................................................................173
6.2.4.7 USS parameter channel.......................................................................................................174
6.2.5 Communication via BACnet MS/TP .....................................................................................180
6.2.5.1 BACnet properties................................................................................................................180
6.2.5.2 Activating communication via fieldbus .................................................................................181
6.2.5.3 Setting the address ..............................................................................................................182
6.2.5.4 Parameters for setting communication via BACnet..............................................................183
6.2.5.5 Supported services and objects ...........................................................................................185
6.2.5.6 Acyclic communication (general parameter access) via BACnet.........................................194
6.2.6 Changeover drive control .....................................................................................................196
6.2.7 Selecting physical units........................................................................................................197
6.2.7.1 Unit system ..........................................................................................................................197
6.2.7.2 Technological unit of the technology controller ....................................................................198
6.3 Pump control ........................................................................................................................200
6.3.1 Multi-pump control................................................................................................................200
6.3.1.1 Pump switch-in/switch-out....................................................................................................202
6.3.1.2 Stop mode............................................................................................................................207
6.3.1.3 Pump switchover..................................................................................................................210
6.3.1.4 Service mode .......................................................................................................................212
6.3.2 Pipe filling.............................................................................................................................215
6.3.3 Frost protection ....................................................................................................................218
6.3.4 Condensation protection ......................................................................................................219
6.3.5 Cavitation protection ............................................................................................................221
6.3.6 Deragging.............................................................................................................................222
6.4 Setpoints and setpoint processing .......................................................................................224
6.4.1 Setpoints ..............................................................................................................................224
6.4.1.1 Analog input as setpoint source ...........................................................................................225
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6.4.1.2 Specifying the setpoint via the fieldbus ................................................................................226
6.4.1.3 Motorized potentiometer as setpoint source ........................................................................227
6.4.1.4 Fixed speed setpoint as setpoint source..............................................................................230
6.4.2 Setpoint processing..............................................................................................................235
6.4.2.1 Overview ..............................................................................................................................235
6.4.2.2 Invert setpoint.......................................................................................................................236
6.4.2.3 Enable direction of rotation ..................................................................................................237
6.4.2.4 Skip frequency bands and minimum speed .........................................................................238
6.4.2.5 Speed limitation....................................................................................................................241
6.4.2.6 Ramp-function generator .....................................................................................................242
6.4.2.7 Dual ramp function ...............................................................................................................245
6.5 Technology controller...........................................................................................................247
6.5.1 PID technology controller .....................................................................................................247
6.5.1.1 Autotuning the PID technology controller.............................................................................258
6.5.1.2 Adapting Kp and Tn .............................................................................................................261
6.5.2 Free technology controllers..................................................................................................264
6.5.3 Staging control .....................................................................................................................265
6.5.4 Real time clock (RTC) ..........................................................................................................270
6.5.5 Time switch (DTC) ...............................................................................................................272
6.6 Motor control ........................................................................................................................273
6.6.1 Reactor, filter and cable resistance at the converter output.................................................273
6.6.2 V/f control .............................................................................................................................274
6.6.2.1 U/f control.............................................................................................................................274
6.6.2.2 Optimizing motor starting .....................................................................................................279
6.6.2.3 U/f control with Standard Drive Control................................................................................284
6.6.2.4 Optimizing the motor start-up for application class Standard Drive Control.........................286
6.6.3 Encoderless vector control...................................................................................................288
6.6.3.1 Structure of vector control without encoder (sensorless) .....................................................288
6.6.3.2 Optimizing the speed controller............................................................................................293
6.6.4 Electrically braking the motor ...............................................................................................295
6.6.4.1 DC braking ...........................................................................................................................297
6.6.4.2 Compound braking...............................................................................................................299
6.6.5 Pulse frequency wobbling ....................................................................................................300
6.7 Drive protection ....................................................................................................................301
6.7.1 Overcurrent protection .........................................................................................................301
6.7.2 Converter protection using temperature monitoring.............................................................302
6.7.3 Motor protection with temperature sensor............................................................................305
6.7.4 Motor protection by calculating the temperature ..................................................................307
6.7.5 Motor and converter protection by limiting the voltage.........................................................309
6.7.6 Monitoring the driven load....................................................................................................310
6.7.6.1 Stall protection .....................................................................................................................312
6.7.6.2 No-load monitoring...............................................................................................................312
6.7.6.3 Blocking protection...............................................................................................................313
6.7.6.4 Torque monitoring ................................................................................................................314
6.7.6.5 Blocking protection, leakage protection and dry-running protection ....................................315
6.7.6.6 Rotation monitoring ..............................................................................................................317
6.8 Drive availability ...................................................................................................................318
6.8.1 Flying restart – switching on while the motor is running.......................................................318
6.8.2 Automatic restart ..................................................................................................................320
6.8.3 Kinetic buffering (Vdc min control) .......................................................................................323
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6.8.4 Essential service mode ........................................................................................................324
6.9 Energy saving ......................................................................................................................329
6.9.1 Efficiency optimization..........................................................................................................329
6.9.2 Bypass .................................................................................................................................332
6.9.3 Hibernation mode.................................................................................................................338
6.9.4 Calculating the energy saving for fluid flow machines .........................................................344
6.10 Switchover between different settings..................................................................................346
7 Parameters ...............................................................................................................................................349
7.1 Brief description of the parameters ......................................................................................349
7.2 Explanation of the detailed parameter list ............................................................................350
7.3 Parameters...........................................................................................................................352
7.4 ASCII table ...........................................................................................................................723
8 Saving the settings and series commissioning.........................................................................................725
8.1 Memory card ........................................................................................................................726
8.1.1 Recommended memory cards .............................................................................................726
8.1.2 Saving setting on memory card............................................................................................726
8.1.2.1 Automatic backup.................................................................................................................727
8.1.2.2 Manual backup.....................................................................................................................728
8.1.3 Transferring the setting from the memory card ....................................................................728
8.1.3.1 Automatic transfer ................................................................................................................728
8.1.3.2 Manually transferring............................................................................................................729
8.1.4 Safely remove the memory card ..........................................................................................730
8.1.5 Message for a memory card that is not inserted ..................................................................731
8.2 Operator panel .....................................................................................................................732
8.2.1 Backup using the operator panel .........................................................................................732
8.2.2 Transfer to the converter......................................................................................................732
8.3 Other ways to back up settings ............................................................................................734
8.4 Series commissioning ..........................................................................................................735
8.5 Write protection ....................................................................................................................736
8.6 Know-how protection............................................................................................................738
8.6.1 Know-how protection............................................................................................................738
8.6.2 Extending the exception list for know-how protection ..........................................................741
8.6.3 Activating and deactivating know-how protection ................................................................741
9 Warnings, faults and system messages ...................................................................................................743
9.1 Overview ..............................................................................................................................743
9.2 Operating states indicated on LEDs.....................................................................................744
9.3 System runtime ....................................................................................................................746
9.4 Alarms, alarm buffer, and alarm history ...............................................................................747
9.5 Faults, alarm buffer and alarm history..................................................................................750
9.6 List of fault codes and alarm codes......................................................................................753
9.6.1 Overview of faults and alarms..............................................................................................753
9.6.2 Fault codes and alarm codes ...............................................................................................753
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10 Corrective maintenance............................................................................................................................827
10.1 Replacing an converter ........................................................................................................828
10.1.1 Overview of how to replace a converter...............................................................................828
10.1.2 Replacing a converter with data backup ..............................................................................829
10.1.3 Replacing a converter without data backup .........................................................................830
10.2 Replacing spare parts ..........................................................................................................832
10.2.1 Spare parts compatibility......................................................................................................832
10.2.2 Spare parts overview ...........................................................................................................832
10.2.3 Fan units ..............................................................................................................................833
10.2.3.1 Replacing the fan unit, FSA ... FSC .....................................................................................835
10.2.3.2 Replacing the fan unit, FSD ... FSG.....................................................................................836
10.2.3.3 Replacing the fan unit, FSH/FSJ..........................................................................................837
10.2.3.4 Replacing the internal fan, FSH/FSJ only ............................................................................838
10.2.4 Assemblies for FSH and FSJ ...............................................................................................840
10.2.4.1 Replacing the power supply board.......................................................................................840
10.2.4.2 Replacing the free programmable interface (FPI) ................................................................842
10.2.4.3 Replacing the current sensor ...............................................................................................845
10.2.4.4 Replacing the SITOP power supply for the external fan ......................................................849
10.2.4.5 Replacing the fuse for the external fan ................................................................................850
10.3 Firmware upgrade and downgrade ......................................................................................853
10.3.1 Preparing the memory card..................................................................................................854
10.3.2 Upgrading the firmware........................................................................................................855
10.3.3 Firmware downgrade ...........................................................................................................857
10.3.4 Correcting an unsuccessful firmware upgrade or downgrade..............................................859
11 Technical data ..........................................................................................................................................861
11.1 Technical data of inputs and outputs ...................................................................................861
11.2 Load cycles and overload capability ....................................................................................863
11.3 General converter technical data .........................................................................................864
11.4 Technical data dependent on the power ..............................................................................866
11.5 Derating data........................................................................................................................867
11.5.1 Current derating as a function of the installation altitude .....................................................867
11.5.2 Current derating as a function of the ambient temperature..................................................868
11.5.3 Current derating as a function of the line voltage.................................................................869
11.5.4 Current derating as a function of the pulse frequency .........................................................869
11.6 Low frequency performance.................................................................................................871
11.7 Data regarding the power loss in partial load operation.......................................................872
11.8 Electromagnetic compatibility of the converter.....................................................................873
11.9 Protecting persons from electromagnetic fields ...................................................................876
A Appendix...................................................................................................................................................877
A.1 Handling the BOP-2 operator panel .....................................................................................877
A.1.1 Changing settings using BOP-2 ...........................................................................................878
A.1.2 Changing indexed parameters .............................................................................................879
A.1.3 Directly entering the parameter number and value ..............................................................880
A.1.4 A parameter cannot be changed..........................................................................................881
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A.2 Interconnecting signals in the converter...............................................................................882
A.3 Manuals and technical support ............................................................................................884
A.3.1 Overview of the manuals......................................................................................................884
A.3.2 Configuring support..............................................................................................................884
A.3.3 Product Support ...................................................................................................................886
Index.........................................................................................................................................................887
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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 qualified for this job.
● Always observe the country-specific safety rules.
Generally, the following six steps apply when establishing safety:
1. Prepare for disconnection. Notify all those who will be affected 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 specified 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 fire 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 fire.
● In the case of a conductor-conductor or conductor-ground short-circuit, ensure that the
short-circuit current at the point where the inverter 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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WARNING
Risk of electric shock and fire 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 fire.
● Ensure that the prospective short-circuit current at the line terminal of the inverter 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 specified in the technical data during transport,
storage and operation.
● Do not use any damaged devices.
Fundamental safety instructions
1.1 General safety instructions
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WARNING
Electric shock due to unconnected cable shield
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
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 off. 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
Property damage due to loose power connections
Insufficient tightening torques or vibration can result in loose power connections. This can
result in damage due to fire, 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.
WARNING
Spread of fire from built-in devices
In the event of fire outbreak, the enclosures of built-in devices cannot prevent the escape of
fire and smoke. This can result in serious personal injury or property damage.
● Install built-in units in a suitable metal cabinet in such a way that personnel are protected
against fire and smoke, or take other appropriate measures to protect personnel.
● Ensure that smoke can only escape via controlled and monitored paths.
Fundamental safety instructions
1.1 General safety instructions
SINAMICS G120XA converter
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WARNING
Active implant malfunctions due to electromagnetic fields
Inverters generate electromagnetic fields (EMF) in operation. Electromagnetic fields may
interfere with active implants, e.g. pacemakers. People with active implants in the immediate
vicinity of an inverter 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
When radio devices or mobile phones with a transmission power > 1 W are used in the
immediate vicinity of components, they may cause the equipment to malfunction.
Malfunctions may impair the functional safety of machines and can therefore put people in
danger or lead to property damage.
● If you come closer than around 2 m to such components, switch off any radios or mobile
phones.
● Use the "SIEMENS Industry Online Support app" only on equipment that has already been
switched off.
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 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.
Fundamental safety instructions
1.1 General safety instructions
SINAMICS G120XA converter
14 Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB

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.
WARNING
Unrecognized dangers due to missing or illegible warning labels
Dangers might not be recognized if warning labels are missing or illegible. Unrecognized
dangers may cause accidents resulting in serious injury or death.
● Check that the warning labels are complete based on the documentation.
● Attach any missing warning labels to the components, where necessary in the national
language.
● Replace illegible warning labels.
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.
Fundamental safety instructions
1.1 General safety instructions
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB 15

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
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 off.
Fundamental safety instructions
1.1 General safety instructions
SINAMICS G120XA converter
16 Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB

1.2 Equipment damage due to electric fields or electrostatic discharge
Electrostatic sensitive devices (ESD) are individual components, integrated circuits, modules
or devices that may be damaged by either electric fields or electrostatic discharge.
NOTICE
Equipment damage due to 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
1.2 Equipment damage due to electric fields or electrostatic discharge
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB 17

1.3 Warranty and liability for application examples
Application examples are not binding and do not claim to be complete regarding configuration,
equipment or any eventuality which may arise. Application examples do not represent specific
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
SINAMICS G120XA converter
18 Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB