Siemens SINAMICS G120C User manual

09/2017Edition
Low voltage converter
Built-in units with frame sizes AA ... F
Operating Instructions
www.siemens.com/drives
SINAMICS G120C
SINAMICS

SINAMICS
SINAMICS G120C
SINAMICS G120C converter
Operating Instructions
Edition 09/2017, firmware 4.7 SP9
09/2017, FW V4.7 SP9
A5E34263257B AF
Changes in the current
manual
Fundamental safety
instructions 1
Introduction 2
Description 3
Installing 4
Commissioning 5
Advanced commissioning 6
Saving settings and series
commissioning 7
Alarms, faults and system
messages 8
Corrective maintenance 9
Technical data 10
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
A5E34263257B AF
Ⓟ 09/2017 Subject to change
Copyright © Siemens AG 2011 - 2017.
All rights reserved

Changes in the current manual
Notable changes since the 11/2016 edition of the Manual
New hardware
● Operator Panel IOP replaced by Intelligent Operator Panel 2 (IOP-2).
Installing the inverter (Page 50)
Tools to commission the inverter (Page 116)
● dU/dt filter plus Voltage Peak Limiter
Mount dU/dt filter plus Voltage Peak Limiter (Page 62)
Hardware, which is no longer described in the current operating instructions
Frame size FSA, power range 0.55 kW … 2.2 kW
Information on inverters FSA, 0.55 kW … 2.2 kW is provided in Edition 11/2016 of the operating
instructions.
Operating instructions SINAMICS G120C, FW V4.7 SP6 (https://
support.industry.siemens.com/cs/ww/en/view/109744769)
New functions
● Telegram 350 added for PROFIBUS and PROFINET
Drive control via PROFIBUS or PROFINET (Page 179)
● Improved method for optimizing the efficiency of standard induction motors
Efficiency optimization (Page 311)
● End position control with two limit switches
Limit position control (Page 202)
● The inverter issues an alarm if a memory card is not inserted.
Activate message for a memory card that is not inserted (Page 332)
Overview of all new and modified functions in firmware V4.7 SP9:
Firmware version 4.7 SP9 (Page 429)
SINAMICS G120C converter
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Corrections
● Default 14 of the terminal strip corrected:
The higher-level control switches the function of the terminal strip via PZD01, bit 15 (not
via digital input DI 3).
Default setting of the interfaces (Page 91)
● Motor holding brake function corrected:
– The inverter sets the signal "Operation released" to "high" after expiry of the time p1216
(not with the ON command).
– The inverter sets the signal "Operation released" to "low" with the OFF command (not
with the signal "Motor is magnetized").
Motor holding brake (Page 206)
● The maximum permissible cable length has been corrected:
Optional components (Page 36)
● The restrictions relating to the electromagnetic compatibility of the inverter have been
corrected.
Maximum permissible motor cable length (Page 77)
● With the installation of a suitable fuse, the short-circuit current rating SCCR of the inverter
is 100 kA, irrespective of the frame size.
General inverter technical data (Page 405)
Other revised chapters
● Description for drive control via PROFIBUS and PROFINET has been revised
Drive control via PROFIBUS or PROFINET (Page 179)
● External Class B line filters for inverters FSAA … FSC, and reference to additional optional
components for the inverter added
Optional components (Page 36)
● Data regarding branch protection reduced to typical fuses.
Branch circuit protection (Page 75)
● Technical data for the digital inputs and digital outputs added:
– Minimum current for the "high" state for digital inputs
– Maximum current for the "low" state for transistor outputs
Technical data of inputs and outputs (Page 401)
Changes in the current manual
SINAMICS G120C converter
6Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF

Table of contents
Changes in the current manual....................................................................................................................5
1Fundamental safety instructions.................................................................................................................15
1.1 General safety instructions.....................................................................................................15
1.2 Equipment damage due to electric fields or electrostatic discharge......................................20
1.3 Warranty and liability for application examples......................................................................21
1.4 Industrial security...................................................................................................................22
1.5 Residual risks of power drive systems...................................................................................23
2 Introduction.................................................................................................................................................25
2.1 About the Manual...................................................................................................................25
2.2 Guide through the manual......................................................................................................26
3 Description..................................................................................................................................................29
3.1 Scope of delivery inverters FSAA ... FSC..............................................................................30
3.2 Scope of delivery inverters FSD ... FSF.................................................................................32
3.3 Directives and standards........................................................................................................34
3.4 Optional components.............................................................................................................36
3.5 Motors and multi-motor drives that can be operated..............................................................40
4 Installing.....................................................................................................................................................41
4.1 EMC-compliant setup of the machine or plant.......................................................................41
4.1.1 Control cabinet.......................................................................................................................42
4.1.2 Cables....................................................................................................................................43
4.1.3 Electromechanical components.............................................................................................46
4.2 Mounting base components...................................................................................................47
4.3 Installing the inverter..............................................................................................................50
4.4 Mounting the line reactor........................................................................................................57
4.5 Mounting the output reactor...................................................................................................59
4.6 Mount dU/dt filter plus Voltage Peak Limiter..........................................................................62
4.7 Mounting the braking resistor.................................................................................................63
4.8 Connect the line supply, motor and braking resistor..............................................................65
4.8.1 Permissible line supplies........................................................................................................65
4.8.1.1 TN line system ((400-V-Umrichter)).......................................................................................65
4.8.1.2 TT line system........................................................................................................................66
4.8.1.3 IT system................................................................................................................................67
4.8.2 Protective conductor..............................................................................................................67
4.8.3 Connecting the inverter and inverter components to the supply............................................69
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4.8.4 Branch circuit protection.........................................................................................................75
4.8.5 Maximum permissible motor cable length..............................................................................77
4.8.6 Connecting the motor to the inverter in a star or delta connection.........................................79
4.8.7 Operating a converter on the residual current device............................................................80
4.9 Connecting the interfaces for the inverter control..................................................................81
4.9.1 Overview of the interfaces......................................................................................................81
4.9.2 Fieldbus interface assignment...............................................................................................83
4.9.3 Terminal strips........................................................................................................................84
4.9.4 Factory setting of the interfaces.............................................................................................88
4.9.5 Default setting of the interfaces..............................................................................................91
4.9.6 Fail-safe digital input............................................................................................................100
4.9.7 Wiring terminal strips............................................................................................................101
4.9.7.1 Connecting the cable shields (FSAA … FSC)......................................................................103
4.9.7.2 Connecting cable shields (FSD … FSF)..............................................................................104
4.9.8 Fieldbus interfaces...............................................................................................................104
4.9.9 Connecting the inverter to PROFINET.................................................................................104
4.9.9.1 Communication via PROFINET IO and Ethernet.................................................................104
4.9.9.2 Connecting the PROFINET cable to the inverter.................................................................106
4.9.9.3 What do you have to set for communication via PROFINET?.............................................106
4.9.9.4 Installing GSDML.................................................................................................................107
4.9.10 Connecting the inverter to PROFIBUS.................................................................................108
4.9.10.1 Connecting the PROFIBUS cable to the inverter.................................................................108
4.9.10.2 What do you have to set for communication via PROFIBUS?.............................................109
4.9.10.3 Installing the GSD................................................................................................................110
4.9.10.4 Setting the address..............................................................................................................110
4.10 Connecting a motor holding brake.......................................................................................112
4.11 Monitoring the temperature of the braking resistor..............................................................113
5 Commissioning.........................................................................................................................................115
5.1 Commissioning guidelines...................................................................................................115
5.2 Tools to commission the inverter.........................................................................................116
5.3 Preparing for commissioning................................................................................................117
5.3.1 Collecting motor data...........................................................................................................117
5.3.2 Inverter factory setting..........................................................................................................118
5.3.3 Minimum and maximum speed............................................................................................119
5.4 Quick commissioning using the BOP-2 operator panel........................................................120
5.4.1 Overview of quick commissioning........................................................................................121
5.4.2 Start quick commissioning and select the application class.................................................122
5.4.3 Standard Drive Control.........................................................................................................124
5.4.4 Dynamic Drive Control.........................................................................................................126
5.4.5 Expert...................................................................................................................................128
5.4.6 Identifying the motor data and optimizing the closed-loop control.......................................133
5.5 Quick commissioning with a PC...........................................................................................135
5.5.1 Creating a project.................................................................................................................135
5.5.2 Transfer inverters connected via USB into the project.........................................................136
5.5.3 Go online and start quick commissioning.............................................................................139
5.5.4 Overview of quick commissioning........................................................................................140
5.5.5 Select the application class..................................................................................................141
5.5.6 Standard Drive Control.........................................................................................................143
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5.5.7 Dynamic Drive Control.........................................................................................................144
5.5.8 Expert...................................................................................................................................145
5.5.9 Identify motor data...............................................................................................................148
5.6 Restoring the factory setting................................................................................................151
5.6.1 Resetting the safety functions to the factory setting.............................................................152
5.6.2 Restore the factory settings (without safety functions).........................................................155
6 Advanced commissioning.........................................................................................................................157
6.1 Overview of the inverter functions........................................................................................157
6.2 Sequence control when switching the motor on and off.......................................................160
6.3 Adapt the default setting of the terminal strip.......................................................................162
6.3.1 Digital inputs.........................................................................................................................163
6.3.2 Digital outputs......................................................................................................................165
6.3.3 Analog input.........................................................................................................................166
6.3.4 Analog output.......................................................................................................................170
6.4 Controlling clockwise and counter-clockwise operation via digital inputs............................173
6.4.1 Two-wire control, method 1..................................................................................................174
6.4.2 Two-wire control, method 2..................................................................................................175
6.4.3 Two-wire control, method 3..................................................................................................176
6.4.4 Three-wire control, method 1...............................................................................................177
6.4.5 Three-wire control, method 2...............................................................................................178
6.5 Drive control via PROFIBUS or PROFINET.........................................................................179
6.5.1 Receive data and send data................................................................................................179
6.5.2 Telegrams............................................................................................................................180
6.5.3 Control and status word 1....................................................................................................182
6.5.4 NAMUR message word........................................................................................................185
6.5.5 Parameter channel...............................................................................................................186
6.5.6 Examples for using the parameter channel..........................................................................189
6.5.7 Extend telegrams and change signal interconnection..........................................................191
6.5.8 Slave-to-slave communication.............................................................................................193
6.5.9 Acyclically reading and writing inverter parameters.............................................................193
6.6 Drive control via Modbus RTU.............................................................................................194
6.7 Drive control via USS...........................................................................................................197
6.8 Drive control via Ethernet/IP................................................................................................200
6.9 Jogging.................................................................................................................................201
6.10 Limit position control............................................................................................................202
6.11 Switching over the drive control (command data set)..........................................................204
6.12 Motor holding brake.............................................................................................................206
6.13 Free function blocks.............................................................................................................210
6.14 Selecting physical units........................................................................................................211
6.14.1 Select the motor standard....................................................................................................211
6.14.2 Selecting the system of units...............................................................................................211
6.14.3 Selecting the technological unit of the technology controller...............................................213
6.14.4 Setting the motor standard, system of units and technology unit using STARTER.............213
6.15 Safe Torque Off (STO) safety function.................................................................................215
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6.15.1 Function description.............................................................................................................215
6.15.2 Commissioning STO............................................................................................................217
6.15.2.1 Safety functions password...................................................................................................217
6.15.2.2 Configuring a safety function................................................................................................219
6.15.2.3 Interconnecting the "STO active" signal...............................................................................221
6.15.2.4 Setting the filter for fail-safe digital inputs............................................................................223
6.15.2.5 Setting the forced checking procedure (test stop)................................................................225
6.15.2.6 Activating the settings and checking the digital inputs.........................................................228
6.15.2.7 Acceptance - completion of commissioning.........................................................................232
6.16 Setpoints..............................................................................................................................235
6.16.1 Overview..............................................................................................................................235
6.16.2 Analog input as setpoint source...........................................................................................236
6.16.3 Specifying the setpoint via the fieldbus................................................................................237
6.16.4 Motorized potentiometer as setpoint source........................................................................238
6.16.5 Fixed speed setpoint as setpoint source..............................................................................240
6.17 Setpoint calculation..............................................................................................................243
6.17.1 Overview of setpoint processing..........................................................................................243
6.17.2 Invert setpoint.......................................................................................................................244
6.17.3 Inhibit direction of rotation....................................................................................................245
6.17.4 Skip frequency bands and minimum speed.........................................................................246
6.17.5 Speed limitation....................................................................................................................247
6.17.6 Ramp-function generator.....................................................................................................248
6.18 PID technology controller.....................................................................................................252
6.19 Motor control........................................................................................................................258
6.19.1 Reactor, filter and cable resistance at the inverter output....................................................258
6.19.2 V/f control.............................................................................................................................259
6.19.2.1 Characteristics of U/f control................................................................................................261
6.19.2.2 Optimizing motor starting.....................................................................................................264
6.19.3 Encoderless vector control...................................................................................................268
6.19.3.1 Structure of vector control without encoder (sensorless).....................................................268
6.19.3.2 Optimizing the speed controller............................................................................................270
6.19.3.3 Advanced settings................................................................................................................273
6.19.3.4 Friction characteristic...........................................................................................................274
6.19.3.5 Moment of inertia estimator..................................................................................................276
6.19.4 Application examples for closed-loop motor control.............................................................282
6.20 Electrically braking the motor...............................................................................................283
6.20.1 DC braking...........................................................................................................................285
6.20.2 Compound braking...............................................................................................................288
6.20.3 Dynamic braking..................................................................................................................290
6.21 Overcurrent protection.........................................................................................................292
6.22 Inverter protection using temperature monitoring................................................................293
6.23 Motor protection with temperature sensor............................................................................296
6.24 Motor protection by calculating the temperature..................................................................299
6.25 Motor and inverter protection by limiting the voltage............................................................301
6.26 Flying restart – switching on while the motor is running.......................................................303
6.27 Automatic restart..................................................................................................................305
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6.28 Kinetic buffering (Vdc min control).......................................................................................309
6.29 Efficiency optimization..........................................................................................................311
6.30 Line contactor control...........................................................................................................314
6.31 Calculating the energy saving for fluid flow machines.........................................................316
6.32 Switchover between different settings..................................................................................318
7 Saving settings and series commissioning...............................................................................................321
7.1 Saving settings on a memory card.......................................................................................322
7.1.1 Memory cards......................................................................................................................322
7.1.2 Saving setting on memory card............................................................................................323
7.1.3 Transferring the setting from the memory card....................................................................327
7.1.4 Safely remove the memory card..........................................................................................330
7.1.5 Activate message for a memory card that is not inserted....................................................332
7.2 Saving the settings to a PC..................................................................................................333
7.3 Saving settings to an operator panel....................................................................................337
7.4 Other ways to back up settings............................................................................................339
7.5 Write protection....................................................................................................................340
7.6 Know-how protection............................................................................................................342
7.6.1 Extending the exception list for know-how protection..........................................................345
7.6.2 Activating and deactivating know-how protection................................................................346
8 Alarms, faults and system messages.......................................................................................................349
8.1 Operating states indicated on LEDs.....................................................................................350
8.2 Identification & maintenance data (I&M)..............................................................................353
8.3 Alarms, alarm buffer, and alarm history...............................................................................354
8.4 Faults, alarm buffer and alarm history..................................................................................357
8.5 List of alarms and faults.......................................................................................................361
9 Corrective maintenance............................................................................................................................369
9.1 Spare parts compatibility......................................................................................................369
9.2 Replacing inverter components............................................................................................370
9.2.1 Overview of how to replace an inverter................................................................................371
9.2.2 Replacing a converter with enabled safety function.............................................................373
9.2.3 Replacing a converter without enabled safety function........................................................378
9.2.4 Replacing a converter without data backup.........................................................................380
9.2.5 Replacing devices with active know-how protection............................................................380
9.2.6 Spare parts...........................................................................................................................383
9.2.7 Replace the fan unit for the heat sink...................................................................................385
9.2.8 Replacing the roof-mounted fan...........................................................................................389
9.3 Firmware upgrade and downgrade......................................................................................391
9.3.1 Upgrading the firmware........................................................................................................393
9.3.2 Firmware downgrade...........................................................................................................395
9.3.3 Correcting an unsuccessful firmware upgrade or downgrade..............................................397
9.4 Reduced acceptance after component replacement and firmware change.........................398
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9.5 If the converter no longer responds.....................................................................................399
10 Technical data..........................................................................................................................................401
10.1 Technical data of inputs and outputs...................................................................................401
10.2 High Overload and Low Overload........................................................................................403
10.3 Overload capability of the inverter........................................................................................404
10.4 General inverter technical data............................................................................................405
10.5 Technical data dependent on the power..............................................................................406
10.6 Data regarding the power loss in partial load operation.......................................................412
10.7 Current reduction depending on pulse frequency................................................................413
10.8 Restrictions for special ambient conditions..........................................................................414
10.9 Electromagnetic compatibility of the inverter........................................................................418
10.9.1 Harmonic currents................................................................................................................421
10.9.2 EMC limit values in South Korea..........................................................................................421
10.10 Accessories..........................................................................................................................422
10.10.1 Line reactor..........................................................................................................................422
10.10.2 Line filter...............................................................................................................................423
10.10.3 Output reactor......................................................................................................................424
10.10.4 Sine-wave filter.....................................................................................................................425
10.10.5 dU/dt filter plus Voltage Peak Limiter...................................................................................426
10.10.6 Braking resistor....................................................................................................................427
A Appendix...................................................................................................................................................429
A.1 New and extended functions................................................................................................429
A.1.1 Firmware version 4.7 SP9....................................................................................................429
A.1.2 Firmware version 4.7 SP6....................................................................................................431
A.1.3 Firmware version 4.7 SP3....................................................................................................432
A.1.4 Firmware version 4.7............................................................................................................435
A.1.5 Firmware version 4.6 SP6....................................................................................................436
A.1.6 Firmware version 4.6............................................................................................................437
A.1.7 Firmware version 4.5............................................................................................................438
A.2 Handling the BOP 2 operator panel.....................................................................................439
A.2.1 Menu structure, symbols and keys.......................................................................................439
A.2.2 Changing settings using BOP-2...........................................................................................440
A.2.3 Changing indexed parameters.............................................................................................441
A.2.4 Directly entering the parameter number and value..............................................................442
A.2.5 A parameter cannot be changed..........................................................................................443
A.3 The device trace in STARTER.............................................................................................444
A.4 Interconnecting signals in the converter...............................................................................447
A.4.1 Fundamentals......................................................................................................................447
A.4.2 Application example.............................................................................................................449
A.5 Connecting a fail-safe digital input.......................................................................................451
A.6 Acceptance test for the safety function................................................................................453
A.6.1 Recommended acceptance test...........................................................................................453
A.6.2 Machine documentation.......................................................................................................456
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A.6.3 Documenting the settings for the basic functions, firmware V4.4 ... V4.7 SP6....................458
A.7 Manuals and technical support............................................................................................459
A.7.1 Overview of the manuals......................................................................................................459
A.7.2 Configuring support..............................................................................................................461
A.7.3 Product Support...................................................................................................................462
Index.........................................................................................................................................................463
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Table of contents
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14 Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF

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
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 that might result in serious injury or death.
● Only use power supplies that provide SELV (Safety Extra Low Voltage) or PELV-
(Protective Extra Low Voltage) output voltages for all connections and terminals of the
electronics modules.
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WARNING
Electric shock due to equipment damage
Improper handling may cause damage to equipment. For damaged devices, hazardous
voltages can be present at the enclosure or at exposed components; if touched, this can
result in death or severe injury.
● Ensure compliance with the limit values specified 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.
● 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
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
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.
Fundamental safety instructions
1.1 General safety instructions
SINAMICS G120C converter
16 Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF

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.
WARNING
Failure of pacemakers or implant malfunctions due to electromagnetic fields
Electromagnetic fields (EMF) are generated by the operation of electrical power equipment,
such as transformers, converters, or motors. People with pacemakers or implants in the
immediate vicinity of this equipment are at particular risk.
● If you have a heart pacemaker or implant, maintain a minimum distance of 2 m from
electrical power equipment.
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.
Fundamental safety instructions
1.1 General safety instructions
SINAMICS G120C converter
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WARNING
Motor fire in the event of insulation overload
There is higher stress on the motor insulation through a ground fault in an IT system. If the
insulation fails, it is possible that death or severe injury can occur as a result of smoke and
fire.
● Use a monitoring device that signals an insulation fault.
● Correct the fault as quickly as possible so the motor insulation is not overloaded.
WARNING
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.
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.
Fundamental safety instructions
1.1 General safety instructions
SINAMICS G120C converter
18 Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF

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.
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 (parameter assignments) 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 G120C converter
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF 19

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 G120C converter
20 Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF