Siemens SINAMICS SM120 Operating instructions

Answers for industry.
SINAMICS SM120
Motor Module
Type 6SL38855?B
Operating Instructions / Installation Instructions
Edition 12/2015

14.12.2015 09:46
V4.00

Motor Module
SINAMICS SM120
6SL38855?B
Operating Instructions
Installation Instructions
Edition 12/2015
Introduction 1
Safety instructions 2
Description 3
Preparations for use 4
Assembly 5
Electrical connection 6
Commissioning 7
Operation 8
Maintenance 9
Spare parts 10
Disposal 11
Service & Support A
Technical data and drawings B
Additional documents C

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
Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: SM120 Motor Module
Ⓟ 12/2015 Subject to change
Copyright © Siemens AG 2013, -, 2015.
All rights reserved

Table of contents
1 Introduction.................................................................................................................................................11
1.1 About these instructions.........................................................................................................11
1.2 Warning symbols on the device.............................................................................................12
2 Safety instructions......................................................................................................................................13
2.1 Qualified personnel................................................................................................................13
2.2 The five safety rules...............................................................................................................13
2.3 Safe handling.........................................................................................................................14
2.4 Electromagnetic fields in electrical power engineering installations ......................................17
2.5 Components that can be destroyed by electrostatic discharge (ESD)...................................17
2.6 Information for persons responsible for plants and systems..................................................19
2.6.1 Proper usage..........................................................................................................................19
2.6.2 Industrial security concept......................................................................................................20
2.6.3 Grounding concept.................................................................................................................21
2.6.4 Installation site safety.............................................................................................................21
2.6.5 Instructions for inverters with no grounding switch................................................................22
2.6.6 Measures for operator protection in electromagnetic fields...................................................22
2.6.7 Requirements for the circuit breaker provided by the customer.............................................22
2.7 Residual risks.........................................................................................................................23
3 Description..................................................................................................................................................27
3.1 Safety concept.......................................................................................................................27
3.1.1 Safety components and functions..........................................................................................27
3.1.2 External safety components...................................................................................................27
3.1.3 Protection and monitoring functions of internal components.................................................28
3.1.4 Protection and monitoring functions for external components...............................................28
3.2 Motor Module employing M2C technology.............................................................................28
3.3 Re-cooling unit ......................................................................................................................30
3.3.1 Operating principle of the re-cooling unit...............................................................................30
3.3.2 The internal deionized water circuit........................................................................................30
3.3.3 The external raw water circuit................................................................................................32
3.4 Components...........................................................................................................................33
3.4.1 Double submodule.................................................................................................................33
3.4.1.1 Gating unit..............................................................................................................................33
3.4.1.2 Submodule capacitors............................................................................................................34
3.4.2 Door limit switch.....................................................................................................................34
3.4.3 Electromechanical door interlocking system..........................................................................34
3.4.4 Precharging............................................................................................................................34
3.4.5 Power Stack Adapter.............................................................................................................35
3.4.5.1 Power stack adapter 4...........................................................................................................36
3.4.6 Actual value sensing..............................................................................................................41
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Operating Instructions 12/2015 5

3.4.7 Common power supply..........................................................................................................41
3.4.7.1 Field of application.................................................................................................................41
3.4.7.2 Connections...........................................................................................................................42
3.4.7.3 Interface description...............................................................................................................42
3.5 Options...................................................................................................................................43
3.5.1 Suitable for marine use with individual certificate from Germanischer Lloyd (GL) (option
E11)........................................................................................................................................43
3.5.2 Suitable for marine use with individual certificate from Lloyds Register (LR) (option E21)......43
3.5.3 Suitable for marine use with individual certificate from Bureau Veritas (BV) (option E31)......43
3.5.4 Suitable for marine use with individual certificate from Det Norske Veritas (DNV) (option
E51)........................................................................................................................................44
3.5.5 Suitable for marine use with individual certificate from American Bureau of Shipping
(ABS) (option E61).................................................................................................................44
3.5.6 Suitable for marine use with individual certificate from Chinese Classification Society
(CCS) (option E71).................................................................................................................44
3.5.7 Motor-side grounding switch (option L49)..............................................................................44
3.5.8 Anti-condensation heating (option L55).................................................................................44
3.5.9 Safety locking system (option M10).......................................................................................45
3.5.10 Dust protection (option M11)..................................................................................................45
3.5.11 Brass cable entry (option M36)..............................................................................................45
3.5.12 Degree of protection IP44 (option M44).................................................................................45
3.5.13 Redundant fan (option M61)..................................................................................................46
3.5.14 Suitability for marine use (option M66)...................................................................................46
3.5.15 Cell bypass (Option U11).......................................................................................................46
3.5.16 Additional leakage water sensors in the power units (option W26)........................................47
3.6 Interfaces...............................................................................................................................47
3.6.1 Hydraulic interfaces................................................................................................................47
3.6.2 Electrical interfaces................................................................................................................47
3.6.3 DRIVE-CLiQ interface............................................................................................................48
4 Preparations for use...................................................................................................................................49
4.1 Requirements for installation location....................................................................................49
4.2 Inspections when the equipment is received.........................................................................49
4.2.1 Checking the delivery.............................................................................................................49
4.2.2 Checking shock and tilt indicators..........................................................................................50
4.2.3 Checking the load handling attachments...............................................................................53
4.3 Transport................................................................................................................................53
4.3.1 Transport markings................................................................................................................53
4.3.2 Transport requirements..........................................................................................................54
4.3.3 Take the center of gravity into account..................................................................................54
4.3.4 Transport with a fork-lift truck.................................................................................................55
4.3.5 Transport with a crane...........................................................................................................55
4.3.6 Using lifting rods.....................................................................................................................56
4.3.7 Transporting transportation units packed in boxes................................................................57
4.3.8 Transporting a re-cooling unit................................................................................................58
4.4 Unpacking the cabinets..........................................................................................................59
4.4.1 Removing the packaging........................................................................................................59
4.4.2 Removing load securing devices...........................................................................................59
4.4.3 Lifting the cabinet off the transport pallet...............................................................................60
4.4.4 Opening doors in preparation for use.....................................................................................60
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SINAMICS SM120 6SL38855?B
6Operating Instructions 12/2015

4.4.5 Checking the shock and tilt indicators inside the cabinet.......................................................62
4.5 Storage...................................................................................................................................62
4.5.1 Emptying the drive.................................................................................................................62
4.5.2 Storing a device.....................................................................................................................63
4.5.3 Storing fans............................................................................................................................64
4.5.4 Storing re-cooling units..........................................................................................................64
5 Assembly....................................................................................................................................................65
5.1 Safety instructions for assembly............................................................................................65
5.2 Tools required........................................................................................................................66
5.3 Attach the roof hood and fans................................................................................................66
5.4 Screwing the transport units together....................................................................................67
5.5 Connect to the foundation......................................................................................................69
5.6 Connecting cabinets...............................................................................................................69
5.6.1 Connect the DC cable............................................................................................................70
5.7 Connecting the water circuits.................................................................................................70
6 Electrical connection...................................................................................................................................73
6.1 Safety instructions for electrical connections.........................................................................73
6.2 Electromagnetic compatibility.................................................................................................75
6.3 Potential concept....................................................................................................................78
6.4 Cable cross-sections..............................................................................................................78
6.5 Connecting ground.................................................................................................................79
6.6 Laying the signal lines............................................................................................................79
6.7 Connecting power cables.......................................................................................................80
6.7.1 Preparations...........................................................................................................................80
6.7.2 Procedure...............................................................................................................................82
6.8 Connecting the re-cooling unit to the drive.............................................................................83
6.9 Interconnecting optional connections.....................................................................................83
6.10 Fastening the cable ducts with cable ties...............................................................................83
7 Commissioning...........................................................................................................................................85
7.1 Charging the deionized water circuit......................................................................................85
8 Operation....................................................................................................................................................87
8.1 Safety instructions for operation.............................................................................................87
8.2 Functions................................................................................................................................88
8.2.1 Monitoring functions and protective functions........................................................................88
8.2.1.1 Tripping of the circuit-breaker in case of undervoltage..........................................................89
8.3 Fault and system messages..................................................................................................89
8.3.1 Diagnostics via LEDs.............................................................................................................89
8.3.1.1 LEDs of the Power Stack Adapters........................................................................................89
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Operating Instructions 12/2015 7

9 Maintenance...............................................................................................................................................91
9.1 Safety instructions for maintenance.......................................................................................91
9.2 Grounding the system............................................................................................................93
9.2.1 Grounding using the grounding harness................................................................................94
9.3 Opening the device................................................................................................................95
9.4 Preventive maintenance.........................................................................................................96
9.4.1 Inspection...............................................................................................................................96
9.4.2 Checklist for preventive maintenance work............................................................................96
9.4.3 Visual inspections..................................................................................................................97
9.4.3.1 Equipment for visual inspections............................................................................................97
9.4.3.2 Checking the isolating clearances..........................................................................................97
9.4.3.3 Checking hoisting solenoids and security bolts......................................................................97
9.4.3.4 Checking the plug connections..............................................................................................97
9.4.3.5 Checking the filter mats..........................................................................................................98
9.4.3.6 Checking the cable and screw terminals................................................................................98
9.4.3.7 Checking the cooling circuit...................................................................................................98
9.5 Maintenance...........................................................................................................................99
9.5.1 Replacing a fan......................................................................................................................99
9.5.1.1 Replacing fans, from the front................................................................................................99
9.5.1.2 Replacing fans, from the back..............................................................................................100
9.5.2 Replacing filter mats.............................................................................................................101
9.6 Cleaning...............................................................................................................................102
9.6.1 Removing dust deposits.......................................................................................................102
9.6.2 Cleaning aluminum parts.....................................................................................................102
9.7 Repair...................................................................................................................................103
9.7.1 Reference to the safety instructions section........................................................................103
9.7.2 Components that can be replaced.......................................................................................104
9.7.3 Torques................................................................................................................................105
9.7.4 Replacing the AVT combination module..............................................................................106
9.7.5 Replacing the current transformer........................................................................................107
9.7.6 Replacing the double submodule.........................................................................................108
9.7.7 Replacing water sensors......................................................................................................114
10 Spare parts...............................................................................................................................................117
11 Disposal....................................................................................................................................................119
11.1 Disposing of packaging material..........................................................................................119
11.2 Removing device components and old devices...................................................................119
11.3 Bypass disposal...................................................................................................................120
A Service & Support.....................................................................................................................................121
A.1 Siemens Industry Online Support........................................................................................121
B Technical data and drawings....................................................................................................................123
B.1 Standards and regulations...................................................................................................123
B.2 Environmental conditions.....................................................................................................123
B.3 Plant-specific information.....................................................................................................124
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SINAMICS SM120 6SL38855?B
8Operating Instructions 12/2015

C Additional documents...............................................................................................................................125
Index.........................................................................................................................................................127
Tables
Table 3-1 Deionized water requirements.....................................................................................................31
Table 3-2 Raw water requirements.............................................................................................................32
Table 3-3 Power Stack Adapter 4: Analog and digital outputs and temperature sensor connections.........37
Table 3-4 Power Stack Adapter 4: Switch for the analog inputs ................................................................38
Table 3-5 Power Stack Adapter 4: Analog and digital inputs......................................................................38
Table 3-6 Power Stack Adapter 4: Electronic power supply........................................................................40
Table 3-7 Power Stack Adapter 4: Inverter unit...........................................................................................40
Table 3-8 Power Stack Adapter 4: Braking Module.....................................................................................40
Table 3-9 Power Stack Adapter 4: PSA link................................................................................................40
Table 3-10 Power Stack Adapter 4: Gating of the power semiconductors....................................................41
Table 3-11 DRIVE-CLiQ interface.................................................................................................................48
Table 6-1 Cable cross-sections...................................................................................................................78
Table 6-2 Cleaning agents and grease.......................................................................................................81
Table 8-1 LEDs of the Power Stack Adapters ............................................................................................89
Table 9-1 General checklist for preventive maintenance work....................................................................96
Table 9-2 Tightening torques in Nm..........................................................................................................105
Table B-1 Standards and regulations........................................................................................................123
Table B-2 Climatic environmental conditions.............................................................................................123
Table B-3 Mechanical ambient conditions.................................................................................................124
Table B-4 Other ambient conditions..........................................................................................................124
Images
Image 2-1 ESD protective measures ...........................................................................................................18
Image 3-1 Block diagram: Motor Module employing M2C technology.........................................................29
Image 3-2 M2C double submodule..............................................................................................................33
Image 3-3 Interface overview of power stack adapter 4...............................................................................36
Image 3-4 Overview ....................................................................................................................................42
Image 3-5 Auxiliary supply and signal interfaces.........................................................................................47
Image 4-1 Example for attaching shock and tilt indicators...........................................................................51
Image 4-2 Example illustration of centers of gravity.....................................................................................54
Image 4-3 Lifting rod label............................................................................................................................57
Image 4-4 Securing the lifting rods...............................................................................................................57
Image 4-5 Transporting a transportation unit (still in packaging) with a crane.............................................58
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SINAMICS SM120 6SL38855?B
Operating Instructions 12/2015 9

Image 4-6 Labels..........................................................................................................................................61
Image 4-7 Example: Cover screw for manual door interlocking...................................................................61
Image 5-1 Attaching the roof hood...............................................................................................................67
Image 5-2 Screwing the cabinets together...................................................................................................68
Image 5-3 Connecting the grounding for the cabinet units...........................................................................69
Image 5-4 DC cable......................................................................................................................................70
Image 5-5 Water piping................................................................................................................................71
Image 6-1 Shield connection using a clip.....................................................................................................77
Image 6-2 Bridging shield gaps....................................................................................................................77
Image 6-3 Potential concept.........................................................................................................................78
Image 6-4 Example: Grounding bar and grounding lug................................................................................79
Image 6-5 Schematic diagram: Connecting power cables..........................................................................82
Image 6-6 Fastening the cable ties..............................................................................................................83
Image 9-1 Schematic diagram: Attaching the grounding spider...................................................................94
Image 9-2 Replacing fans from the front......................................................................................................99
Image 9-3 Replacing fans from the back....................................................................................................100
Image 9-4 Example of an AVT combination module..................................................................................106
Image 9-5 Replacing the current transformer.............................................................................................107
Image 9-6 Removing the double submodule, steps 1 to 7.........................................................................110
Image 9-7 Removing the double submodule, steps 8 to 10.......................................................................111
Image 9-8 Removing the double submodule, step 11................................................................................111
Image 9-9 Removing the double submodule, step 12................................................................................112
Image 9-10 Replacing the water sensors.....................................................................................................114
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SINAMICS SM120 6SL38855?B
10 Operating Instructions 12/2015

Introduction 1
1.1 About these instructions
These instructions describe the drive and explain how to handle it, from initial delivery to final
disposal of the equipment. Keep these instructions for later use.
Read these instructions before you handle the drive and follow the instructions. The
instructions contain information about the safe handling of the drive as well as its components
and modules. They provide information on assembling, installing, and maintaining the
equipment properly.
If you have suggestions for improving the document, please contact our Service Center
(Page 121).
Note
In these instructions, the term "Drive" is used, even if individual cabinet modules are involved.
Text format features
The warning notice system is explained on the rear of the inside front. Always follow the safety
instructions and notices in these instructions.
In addition to the safety-related warning notices which you must read, you will find the text in
these instructions is formatted in the following way:
1. Handling instructions are always formatted as a numbered list. Always perform the steps
in the order given.
● Lists are formatted as bulleted lists.
– Lists on the second level are hyphenated.
Note
A Note is an important item of information about the product, handling of the product or the
relevant section of the document. Notes provide you with help or further suggestions/ideas.
SINAMICS SM120 6SL38855?B
Operating Instructions 12/2015 11

1.2 Warning symbols on the device
Please observe the warning symbols attached to the device. The warning symbols have the
following meaning:
Warning symbol Meaning
Warning: Voltage
Warning: Hot surface
General warning symbol: Observe the explanations about the hazard on the
device labels.
For transportation, observe the "transportation markings (Page 53)" on the device packaging.
Introduction
1.2 Warning symbols on the device
SINAMICS SM120 6SL38855?B
12 Operating Instructions 12/2015

Safety instructions 2
In the individual chapters of this document, you will find safety instructions that must be obeyed
absolutely, for your own safety, to protect other people and to avoid damage to property. Pay
attention to the following safety instructions for all activities on the inverter.
2.1 Qualified personnel
The product/system described in this documentation may only be operated by personnel
qualified for the specific task in accordance with the relevant documentation for the specific
task, in particular its warning notices and safety instructions. Because of their training and
experience, qualified personnel can recognize any risks involved with handling these products/
systems and avoid any possible dangers.
2.2 The five safety rules
For your personal safety and to prevent material damage when carrying out any work, always
observe the safety instructions and the following five safety rules, according to EN 50110‑1
"Dead working". Apply the five safety rules in the sequence stated before starting work.
Five safety rules
1. Disconnect completely.
Disconnect the auxiliary circuits, for example anti-condensation heating.
2. Secure against reconnection.
3. Verify absence of operating voltage.
4. Carry out earthing and short-short-circuiting.
5. Provide protection against adjacent live parts.
To energize the system, apply the measures in reverse order.
SINAMICS SM120 6SL38855?B
Operating Instructions 12/2015 13

2.3 Safe handling
WARNING
High voltages from external supplies
Even if the circuit breaker is open, parts of the drive can be under voltage (live) as a result of
the auxiliary voltage at the premagnetization, precharging or demagnetization transformers.
This danger is not limited to the drive, but can also occur with components that are electrically
connected to the drive (e.g. circuit breakers or isolators). Touching live components can result
in death, serious injury, or material damage.
Therefore, isolate all components that can feed voltage to the drive before commencing work.
WARNING
High voltages during operation
When operating this equipment very high voltages develop. Even after switching off the mains
voltage, or while the connected machine is still turning, high voltages can remain for a
prolonged length of time. High voltages can cause death or serious injury if the safety rules
are not observed or if the equipment is handled incorrectly.
● Operate the drive properly.
● Always follow the "The five safety rules (Page 13)" when performing any work.
● Only remove the covers using the methods described by these operating instructions.
● Maintain the drive regularly and correctly.
WARNING
High voltages from machines still turning and connected
Rotating machinery can induce dangerous high voltages and synchronous motors that are
not de-excited immediately can also pose a hazard. If the connection to the motor is not
isolated or grounded, these voltages can also remain. If live parts are touched, this can result
in death and serious physical injuries.
Before opening the doors, wait until the connected machine has come to a standstill.
WARNING
High voltages from DC-link capacitors
High voltages are still present at the DC-link capacitors even after shutdown. If live parts are
touched, this can result in death or serious physical injury.
● Wait for the DC-link capacitor's discharge time specified on the device label. Do not touch
the device during this time.
● Observe the five safety rules when performing any work.
Safety instructions
2.3 Safe handling
SINAMICS SM120 6SL38855?B
14 Operating Instructions 12/2015

WARNING
High auxiliary voltages
High auxiliary voltages are still present even after shutdown. If live parts are touched, this
can result in death or serious physical injury.
Observe the five safety rules when performing any work.
WARNING
Hazardous arcing
Hazards caused by arcing can occur as result of the following factors, for example:
● The input currents are exceeded
● Incorrectly dimensioned circuit breaker or transformers
● Incorrectly connected cables or cables that have not been connected
● Excessive pollution
Arcing can result in death, serious injury or material damage.
● Make sure that the system is properly dimensioned and that the power cables are correctly
connected. The maximum permissible input currents are listed in the "Technical
specifications".
● Remove any excessive pollution.
WARNING
Live, moving or rotating parts
Contact with the parts mentioned can result in death, serious physical injury or damage to
property.
● Observe the instructions regarding installation and operation.
● Always take protective measures before touching any components.
● Do not remove any necessary covers.
WARNING
Hot component surfaces
Certain components (e.g. heat sinks and reactors) can become very hot during operation.
These components can remain hot for a long time after operation. Contact can result in serious
injury, such as skin burns.
Do not touch hot components even after you have switched off the drive.
Safety instructions
2.3 Safe handling
SINAMICS SM120 6SL38855?B
Operating Instructions 12/2015 15

WARNING
Hot anti-condensation heating surface
When the temperature control limit value is reached the anti-condensation heating is switched
on. Once activated, the anti-condensation heating can generate a great deal of heat. Contact
can result in serious injury, such as skin burns.
Do not touch the anti-condensation heating.
CAUTION
Places that are difficult to access
If you do not use appropriate protective equipment when working in places that are difficult
to access you are at risk of injury. For example, sharp edges and splinters can cause injuries
to the head and skin. If you use unsuitable steps when working on the upper areas of the
drive, you can fall and injure yourself.
● Use appropriate protective equipment, especially a hard hat and gloves.
● In the upper areas of the drive, use suitable steps.
CAUTION
Deionized water
Deionized water is harmful to eyes and skin and can damage surfaces.
Therefore, use appropriate protective clothing for all work on the drive. However, if your eyes
or skin do come into contact with deionized water, rinse the affected area thoroughly with tap
water as soon as possible. If deionized water leaks out, eliminate the source of the problem
and remove the liquid from the surfaces affected.
NOTICE
Unsuitable residual current monitoring device
If you operate the drive together with a residual current monitoring device (RCD), it is possible
the residual current monitoring device will trip in error (nuisance trip). The drive may be
switched off as a result of the protection device tripping in error.
To minimize the risk of faulty trips, use a type-B RCD.
Safety instructions
2.3 Safe handling
SINAMICS SM120 6SL38855?B
16 Operating Instructions 12/2015

2.4 Electromagnetic fields in electrical power engineering installations
Electromagnetic fields are generated during operation of electrical power engineering
installations. Electromagnetic fields can interfere with electronic devices, These devices can
malfunction if electromagnetic fields are present.
WARNING
Interference with pacemakers
The functioning of cardiac pacemakers could be impaired by electromagnetic fields. Death
or serious physical injury can result.
People with pacemakers are therefore not allowed to stay close to the drive.
NOTICE
Data loss
Electromagnetic fields can cause data loss to magnetic or electronic data storage media.
Therefore, do not carry magnetic or electronic data storage media with you.
For nominated persons in control of an electrical installation, you can find further information
on electromagnetic fields under "Information for nominated persons in control of an electrical
installation."
See also
Information for persons responsible for plants and systems (Page 19)
2.5 Components that can be destroyed by electrostatic discharge (ESD)
ESD guidelines
NOTICE
Electrostatic discharge
Electronic components can be destroyed in the event of improper handling, transporting,
storage, and shipping.
Pack the electronic components in appropriate ESD packaging; e.g. ESD foam, ESD
packaging bags and ESD transport containers.
To protect your equipment against damage, follow the instructions given below.
Safety instructions
2.5 Components that can be destroyed by electrostatic discharge (ESD)
SINAMICS SM120 6SL38855?B
Operating Instructions 12/2015 17

● Avoid physical contact with electronic components. If it is essential that you perform work
on these components, then you must wear one of the following pieces of protective gear:
– Grounded ESD wrist strap
– ESD shoes or ESD shoe grounding strips if there is also an ESD floor.
● Do not place electronic components close to data terminals, monitors or televisions.
Maintain a minimum clearance to the screen (> 10 cm).
● Electronic components should not be brought into contact with electrically insulating
materials such as plastic foil, plastic parts, insulating table supports or clothing made of
synthetic fibers.
● Bring components into contact only with ESD-compliant materials, e.g. ESD tables, ESD
surfaces, ESD packaging.
● Only carry out measurements on the components if one of the following conditions is met:
– The measuring device is grounded with a protective conductor, for example.
– The measuring head of a floating measuring device has been discharged directly before
the measurement.
The necessary ESD protective measures for the entire working range for electrostatically
sensitive devices are illustrated once again in the following drawings.
Precise instructions for ESD protective measures are specified in the standard
DIN EN 61340‑5‑1.
①Sitting
②Standing
③Standing/sitting
a Conductive floor surface, is only effective in conjunction with ESD shoes or ESD shoe grounding
strips
b ESD furniture
c ESD shoes or ESD shoe grounding strips are only effective in conjunction with conductive flooring
d ESD clothing
e ESD wrist strap
f Cabinet ground connection
Image 2-1 ESD protective measures
Safety instructions
2.5 Components that can be destroyed by electrostatic discharge (ESD)
SINAMICS SM120 6SL38855?B
18 Operating Instructions 12/2015

2.6 Information for persons responsible for plants and systems
2.6.1 Proper usage
The drives are intended to be used as a stationary installation in closed and dry rooms with a
clean atmosphere. You can find the environmental and operating temperatures that are to be
adhered to in the technical specifications. If the described environmental conditions are not
complied with, then warranty claims and other claims may be rejected.
WARNING
Explosions
If you operate the drive in areas with a risk of explosion, explosions can occur which can
cause death, serious injuries or material damage.
Only operate the converter in a non-explosive environment (no hazardous zones).
WARNING
Non-observance of proper usage
Improper use of the devices described can result in death, severe injury or material damage.
Therefore, please adhere to all instructions for proper usage.
The nominated person in control of an electrical installation must ensure that the following
points are observed:
● Follow the local and industry-specific safety and setup regulations. Observe the
requirements listed in the directives, specified in the "Technical specifications" in Section
"Standards and regulations". Ensure that the specific safety and construction regulations
and regulations for using personal protective equipment are adhered to during all work.
● The operating instructions and the complete product documentation are always available
when carrying out any work.
● The technical specifications as well as the specifications relating to the permissible
installation, connection, ambient and operating conditions are taken into account at all times.
● Only qualified personnel or personnel supervised by responsible, skilled specialists are
allowed to carry out basic planning and all work on the drive.
● During shipping, specific transport conditions are adhered to.
● Assembly is performed according to assembly instructions. Separate cabinet units are
connected properly (cables and busbars).
● All instructions for EMC-compatible installation, cabling, shielding, grounding, and for
adequate auxiliary power supply are to be observed.
● Commissioning is only to be performed by qualified personnel trained for that purpose in
accordance with the commissioning instructions.
Safety instructions
2.6 Information for persons responsible for plants and systems
SINAMICS SM120 6SL38855?B
Operating Instructions 12/2015 19

● System configuration is carried out by an experienced system integrator. Further system
components such as the circuit-breaker, transformer, cables, and motor are adjusted for
drive operation.
● The drive is only operated in conjunction with the engineered components.
● Different operating modes, overloads, load cycles, and differing environmental conditions
are permitted only after special arrangement with the manufacturer.
Note
Make use of the support and services offered by the relevant service center for planning,
installation, commissioning, and servicing work. You can find the relevant contact person under
"Service & Support (Page 121)".
2.6.2 Industrial security concept
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, solutions, machines, devices, and/or networks. They are important
components in a holistic industrial security concept. The products and solutions from Siemens
are continuously developed with this aspect in mind. Siemens strongly recommends that you
regularly check for product updates.
To ensure that Siemens products and solutions are operated securely, suitable preventive
measures (e.g. cell protection concept) must be taken and each component must be integrated
into a state-of-the-art holistic industrial security concept. Any third-party products used must
also be taken into account. For more information about industrial security, visit http://
www.siemens.com/industrialsecurity (http://www.siemens.com/industrialsecurity)
To receive information about product updates on a regular basis, subscribe to our product
newsletter. For more information, visit http://support.automation.siemens.com (http://
support.automation.siemens.com)
Safety instructions
2.6 Information for persons responsible for plants and systems
SINAMICS SM120 6SL38855?B
20 Operating Instructions 12/2015