Siemens 1LA8 Operating Instructions Manual
siemens.com
SIMOTICS TN Series N-compact
Induction motor
Type 1LA8
Operating Instructions / Installation Instructions
Edition 05/2016
31.05.2016 16:04
V13.00
SIMOTICS TN Series N-compact
Induction motor
1LA8
Introduction
1
Operating Instructions
Installation Instructions
Safety information
Description
Preparations for use
Assembly
Electrical connection
Start-up
Operation
2
3
4
5
6
7
8
Maintenance
Spare parts
Disposal
Service and Support
Technical data
Quality documents
9
10
11
A
B
C
Edition 05/2016
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: A5E03472650
Ⓟ 05/2016 Subject to change
Copyright © Siemens AG 2016.
All rights reserved
Table of contents
1 Introduction.................................................................................................................................................13
1.1 About these instructions.........................................................................................................13
1.2 Compiling personal documents..............................................................................................13
2 Safety information.......................................................................................................................................15
2.1 Information for the nominated person in control of the electrical installation.........................15
2.2 The five safety rules...............................................................................................................15
2.3 Qualified personnel................................................................................................................16
2.4 Safe handling.........................................................................................................................16
2.5 Electrostatic sensitive devices...............................................................................................18
2.6 Electromagnetic compatibility.................................................................................................19
2.7 Interference immunity.............................................................................................................19
2.8 Influence on the line power supply through a strongly irregular torque..................................19
2.9 Interference voltages when operating the converter..............................................................20
2.10 Electromagnetic fields when operating electrical power engineering installations.................20
3 Description..................................................................................................................................................21
4 Preparations for use...................................................................................................................................27
4.1 Safety-related aspects to consider when configuring the plant..............................................27
4.2 Observing the operating mode...............................................................................................27
4.3 Thermal motor protection.......................................................................................................27
4.4 Interlock circuit for anti-condensation heating (option)...........................................................27
4.5 Noise emissions.....................................................................................................................28
4.6 Rotational speed limit values.................................................................................................28
4.7 Phase synchronization during supply system switching........................................................28
4.8 Space requirements...............................................................................................................29
4.9 Voltage and frequency fluctuations during line operation......................................................29
4.10 System-inherent frequencies.................................................................................................29
4.11 Torsional loading of the drive train due to faults in the electrical supply................................30
4.12 Transport and storage............................................................................................................30
4.12.1 Transport markings................................................................................................................30
4.12.2 Checking the delivery.............................................................................................................31
4.12.3 Requirements for safe lifting and transporting.......................................................................31
4.12.4 Securing the rotor...................................................................................................................32
4.12.5 Transporting the machine set.................................................................................................33
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Table of contents
4.12.6 Storage...................................................................................................................................34
4.12.7 Protection against corrosion...................................................................................................36
4.13 Converter operation...............................................................................................................37
4.13.1 Supply line configuration........................................................................................................37
4.13.2 Reducing bearing currents.....................................................................................................37
4.13.3 Insulated bearings when operating the converter..................................................................39
5 Assembly....................................................................................................................................................41
5.1 Preparations for installation....................................................................................................41
5.1.1 Requirements for installation..................................................................................................41
5.1.2 Insulation resistance and polarization index..........................................................................42
5.1.3 Testing the insulation resistance and polarization index........................................................42
5.1.4 Preparing the mating faces....................................................................................................45
5.2 Lift the machine to where it will be installed, and position it...................................................45
5.2.1 Preconditions for correct alignment and secure attachment .................................................45
5.2.2 Checking the load handling attachments...............................................................................46
5.2.3 Removing the rotor shipping brace........................................................................................46
5.2.4 Removing anti-corrosion protection.......................................................................................47
5.2.5 Mounting the output elements................................................................................................48
5.2.6 Lifting and transporting the machine......................................................................................49
5.2.7 Draining condensation...........................................................................................................51
5.2.8 Putting the machine down......................................................................................................52
5.2.9 Roughly aligning the machine................................................................................................52
5.3 Installing the machine............................................................................................................53
5.3.1 Safety instructions for installation...........................................................................................53
5.3.2 Selecting fixing screws...........................................................................................................53
5.3.3 Preconditions for smooth, vibration-free operation................................................................54
5.3.4 Aligning the machine to the driven machine and attaching it to it (IM B3 / IM B35)...............54
5.3.5 Aligning the machine to the driven machine and attaching it to it (IM B5).............................56
5.3.6 Aligning the machine to the driven machine and attaching it to it (IM V1, IM V10)................56
5.3.7 Axial and radial forces ...........................................................................................................57
6 Electrical connection...................................................................................................................................59
6.1 Safety instructions relating to the electrical connection.........................................................59
6.2 Terminal box..........................................................................................................................59
6.2.1 Terminal box GT640..............................................................................................................60
6.2.2 Terminal box 1XB1621...........................................................................................................60
6.2.3 Terminal box 1XB1631...........................................................................................................61
6.2.4 Terminal box 1XB1634...........................................................................................................62
6.2.5 Terminal box 1XB9600...........................................................................................................63
6.3 Preparation.............................................................................................................................63
6.3.1 Checking winding connections...............................................................................................63
6.3.2 Terminal designation..............................................................................................................64
6.3.3 Selecting cables.....................................................................................................................64
6.3.4 Connecting the grounding conductor.....................................................................................64
6.3.5 Radio-frequency grounding for converter operation...............................................................65
6.3.6 Connection without terminal box............................................................................................66
6.3.7 Connecting the machine for a specific direction of rotation....................................................67
6.4 Connection.............................................................................................................................67
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6.4.1 Inserting the cable into the GT640 terminal box....................................................................68
6.4.2 Inserting the cable into the 1XB16... terminal box with cable gland ......................................68
6.4.3 Inserting the cable into the 1XB.. terminal box with ring seal.................................................69
6.4.4 Laying cables.........................................................................................................................70
6.4.5 Connecting cables with cable lugs.........................................................................................71
6.4.6 Connection without cable lugs...............................................................................................71
6.4.7 Use of aluminum conductors..................................................................................................73
6.4.8 Using single-stranded cables.................................................................................................73
6.4.9 Internal equipotential bonding................................................................................................73
6.4.10 Stepless mating face for sealing in the terminal box cover (not for GT640)..........................74
6.4.11 Minimum air clearances.........................................................................................................74
6.4.12 Finishing connection work......................................................................................................75
6.5 Connecting the auxiliary circuits.............................................................................................75
6.5.1 Selecting cables.....................................................................................................................75
6.5.2 Bringing cables into the auxiliary terminal box and routing them...........................................75
6.5.3 Connecting temperature monitoring for the stator winding....................................................76
6.5.4 Terminating the connection work (auxiliary circuit)................................................................77
6.5.5 Converter operation...............................................................................................................77
6.5.5.1 Operation on a converter with a low pulse frequency............................................................77
6.5.5.2 Maximum peak voltage at the motor terminals......................................................................78
6.5.5.3 Reducing bearing currents.....................................................................................................78
6.5.5.4 Converter operation on a grounded network..........................................................................80
7 Start-up.......................................................................................................................................................81
7.1 Checks to be carried out prior to commissioning ..................................................................81
7.2 Measuring the insulation resistance before commissioning...................................................82
7.3 Greasing the roller bearings prior to commissioning..............................................................83
7.4 Setpoint values for monitoring the bearing temperature........................................................84
7.5 Set values for monitoring the winding temperature................................................................84
7.6 Test run..................................................................................................................................85
7.7 De-energizing.........................................................................................................................86
8 Operation....................................................................................................................................................87
8.1 Safety guidelines in operation................................................................................................87
8.2 Switching off the anti-condensation heating...........................................................................88
8.3 Switching on the machine......................................................................................................89
8.4 Regreasing roller bearings.....................................................................................................89
8.5 Switching on again after an emergency switching-off............................................................89
8.6 Stoppages..............................................................................................................................89
8.6.1 Avoidance of condensation or formation of condensation within the machine.......................90
8.6.2 Avoidance of damage to roller bearings during stoppages....................................................90
8.6.3 Shaft grounding brushes (option)...........................................................................................91
8.6.4 Measurement of the insulation resistance after an extended stoppage.................................91
8.7 Decommissioning the machine..............................................................................................92
8.8 Re-commissioning the machine.............................................................................................92
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Operating Instructions 05/2016 7
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8.9 faults.......................................................................................................................................92
8.9.1 Inspections in the event of faults............................................................................................92
8.9.2 Electrical faults.......................................................................................................................93
8.9.3 Mechanical faults...................................................................................................................94
8.9.4 Roller bearing faults...............................................................................................................95
9 Maintenance...............................................................................................................................................97
9.1 Inspection and maintenance..................................................................................................97
9.1.1 Safety instructions for inspection and maintenance...............................................................97
9.1.2 Measurement of the insulation resistance and polarization index in the context of
maintenance work..................................................................................................................98
9.1.3 Inspections in the event of faults............................................................................................99
9.1.4 First inspection after installation or repair..............................................................................99
9.1.5 General inspection...............................................................................................................100
9.1.6 Servicing the roller bearings.................................................................................................100
9.1.7 Servicing and maintaining the anti-condensation heating....................................................100
9.1.8 Regreasing intervals and types of grease for operating roller bearings...............................101
9.1.9 Sealing the rolling-contact bearings ("Increased degree of protection" option)...................104
9.1.10 Keeping the cooling air flow clean........................................................................................105
9.1.11 Touch up any damaged paintwork.......................................................................................105
9.1.12 Maintaining terminal boxes..................................................................................................105
9.2 Corrective Maintenance.......................................................................................................106
9.2.1 Prepare servicing work.........................................................................................................106
9.2.2 Seal the motor......................................................................................................................107
9.2.3 Fan cowl...............................................................................................................................107
9.2.4 External fan made of metal..................................................................................................108
9.2.5 External fan made of plastic.................................................................................................109
9.2.6 Internal fan...........................................................................................................................109
9.2.7 Roller-contact bearings........................................................................................................110
9.2.7.1 Uninstalling roller-contact bearings......................................................................................110
9.2.7.2 Remove V ring.....................................................................................................................111
9.2.7.3 Removing the labyrinth sealing ring.....................................................................................111
9.2.7.4 Assembling the rolling-contact bearings..............................................................................112
9.2.7.5 Install the V ring...................................................................................................................113
9.2.7.6 Installing the V ring ("Increased degree of protection" option).............................................114
9.2.7.7 Installing the labyrinth sealing ring.......................................................................................115
10 Spare parts...............................................................................................................................................117
10.1 Ordering data.......................................................................................................................117
10.2 Using commercially available spare parts............................................................................117
10.3 Ordering spare parts via the Internet...................................................................................117
10.4 Anti-condensation heating....................................................................................................118
10.5 Stator and rotor....................................................................................................................119
10.6 Ventilation............................................................................................................................120
10.7 Drive end rolling-contact bearings with bearing housing......................................................121
10.8 Drive end rolling-contact bearings without bearing housing.................................................122
10.9 Roller bearings, DE - end shield with integrated bearing cover...........................................123
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Table of contents
10.10 Non-drive end rolling-contact bearings with bearing housing..............................................124
10.11 Non-drive end rolling-contact bearings without bearing housing.........................................125
10.12 Roller bearings, NDE - end shield with integrated bearing cover.........................................126
10.13 Terminal box GT640............................................................................................................127
10.14 Terminal box 1XB1621.........................................................................................................128
10.15 Terminal box 1XB1631.........................................................................................................130
10.16 Terminal box 1XB1634.........................................................................................................131
10.17 Terminal box 1XB9600.........................................................................................................133
11 Disposal....................................................................................................................................................135
11.1 RoHS - restricting the use of certain hazardous substances...............................................135
11.2 Dismantling the machine......................................................................................................135
11.3 Disposal of components.......................................................................................................136
A Service and Support.................................................................................................................................137
B Technical data..........................................................................................................................................139
B.1 Tightening torques for screw and bolt connections..............................................................139
C Quality documents....................................................................................................................................141
Index.........................................................................................................................................................143
Tables
Table 3-1 Machine design ..........................................................................................................................21
Table 3-2 Data on the rating plate...............................................................................................................22
Table 3-3 Rolling-contact bearing variants..................................................................................................24
Table 3-4 Assignment of shaft heights to terminal boxes............................................................................25
Table 4-1 Minimum dimensions for air intake..............................................................................................29
Table 4-2 Tightening torque for the shaft screw on the rotor shipping brace ............................................33
Table 5-1 Stator winding insulation resistance at 40° C..............................................................................43
Table 5-2 Permissible deviations for aligning the machine with flexible coupling.......................................55
Table 6-1 Terminal designations using the 1U1-1 as an example..............................................................64
Table 6-2 Determining the cross-section of the grounding conductor.........................................................64
Table 6-3 Connection technology (with cable lug / connection without cable lug)......................................68
Table 6-4 Cable entry plate versions...........................................................................................................68
Table 6-5 Terminal boxes with onion sealing ring.......................................................................................69
Table 6-6 Minimum air clearance dependent on rms value of the alternating voltage U
.........................74
rms
Table 6-7 Maximum peak voltage at the motor terminals ...........................................................................78
Table 7-1 Set values for monitoring the bearing temperatures before commissioning...............................84
Table 7-2 Set values for monitoring the bearing temperatures in normal operation ..................................84
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016 9
Table of contents
Table 7-3 Set values for monitoring the winding temperatures during commissioning...............................84
Table 7-4 Set values for monitoring the winding temperatures in normal operation ..................................85
Table 8-1 Electrical faults .......................................................................................................................93
Table 8-2 Mechanical faults.........................................................................................................................94
Table 8-3 Roller bearing faults ...............................................................................................................95
Table 9-1 Checks after assembly or repair .................................................................................................99
Table 9-2 Checks that have to be performed during the general inspection.............................................100
Table 9-3 Criteria for selecting roller bearing greases...............................................................................101
Table 9-4 Roller bearing greases for vertical and horizontal types of construction ..................................102
Table 9-5 Alternative greases with NLGI class 2 for motors of horizontal construction............................103
Table 10-1 Spare parts for stators and rotors ..........................................................................................119
Table 10-2 Spare parts for cooling components .......................................................................................120
Table 10-3 Spare parts for drive end roller bearings with bearing housing ................................................121
Table 10-4 Spare parts for drive end roller bearings without bearing housing ...........................................122
Table 10-5 Spare parts for roller bearings, DE............................................................................................123
Table 10-6 Spare parts for non-drive end roller bearings with bearing housing .........................................124
Table 10-7 Spare parts for non-drive end roller bearings without bearing housing ....................................125
Table 10-8 Spare parts for roller bearings, NDE ........................................................................................126
Table 10-9 Terminal box GT640..................................................................................................................127
Table 10-10 Terminal box 1XB1621 spare parts...........................................................................................128
Table 10-11 Additional spare parts................................................................................................................129
Table 10-12 Additional spare parts for terminal box 1XB1631 with split cable entry.....................................130
Table 10-13 Spare parts for terminal box 1XB1634 .................................................................................131
Table 10-14 Spare parts for terminal box 1XB9600 ..................................................................................133
Table B-1 Tightening torques for bolted connections with a tolerance of ±10%........................................139
Images
Image 3-1 Schematic diagram of rating plate .............................................................................................22
Image 4-1 Axial location of the rotor.............................................................................................................32
Image 4-2 Schematic representation of a single drive.................................................................................39
Image 4-3 Schematic representation of a tandem drive...............................................................................40
Image 5-1 Balancing type on the drive-end side..........................................................................................48
Image 5-2 Schematic diagram of the water drain holes...............................................................................51
Image 5-3 Schematic diagram: Aligning the machine to the driven machine...............................................55
Image 6-1 Terminal box GT640....................................................................................................................60
Image 6-2 Terminal box 1XB1621................................................................................................................60
Image 6-3 Terminal box 1XB1631................................................................................................................61
Image 6-4 Terminal box 1XB1634 ...............................................................................................................62
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Image 6-5 1XB9600 terminal box.................................................................................................................63
Image 6-6 High-frequency grounding...........................................................................................................66
Image 6-7 Strain relief device and sealing insert..........................................................................................69
Image 6-8 Connection with cable lug and fixing screw (schematic diagram)...............................................71
Image 6-9 Connection using terminal clamps (schematic diagram).............................................................72
Image 9-1 Ventilation (schematic diagram with axial fan)..........................................................................108
Image 9-2 Ventilation (schematic diagram with radial fan).........................................................................109
Image 9-3 Remove the V ring.....................................................................................................................111
Image 9-4 Disassembling the labyrinth sealing ring (schematic diagram).................................................112
Image 9-5 Install the V ring.........................................................................................................................114
Image 9-6 Roller-contact bearing with grease chamber (schematic diagram)...........................................115
Image 9-7 Position the set screws for the labyrinth sealing ring on the outer bearing cover.....................116
Image 10-1 Stator and rotor.........................................................................................................................119
Image 10-2 Drive end roller bearings with bearing housing.........................................................................121
Image 10-3 Drive end roller bearings without bearing housing....................................................................122
Image 10-4 Roller bearings, DE - end shield with integrated bearing cover................................................123
Image 10-5 Non-drive end roller bearings with bearing housing..................................................................124
Image 10-6 Non-drive end roller bearings without bearing housing.............................................................125
Image 10-7 Roller bearings, NDE - end shield with integrated bearing cover..............................................126
Image 10-8 Terminal box GT640..................................................................................................................127
Image 10-9 Terminal box 1XB1621 with standard cable entry.....................................................................128
Image 10-10 Two-part cable entry..................................................................................................................128
Image 10-11 Terminal box 1XB1634 with standard cable entry.....................................................................131
Image 10-12 Two-pane cable entry................................................................................................................131
Image 10-13 Terminal box 1XB9600..............................................................................................................133
Image 10-14 Three-part cable entry...............................................................................................................133
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016 11
Table of contents
SIMOTICS TN Series N-compact 1LA8
12 Operating Instructions 05/2016
Introduction
1.1 About these instructions
These instructions describe the machine and explain how to handle it, from initial delivery to
final disposal of the equipment. Keep these instructions for later use.
Read these operating instructions before you handle the machine and follow the instructions
to become familiar with its design and operating principles and thus ensure safe, problem-free
machine operation and long service life.
If you have suggestions for improving the document, please contact the Service Center
(Page 137).
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.
1
● 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.
1.2 Compiling personal documents
On the Internet pages in Industry Online Support you have the possibility of compiling personal
documents using the function Documentation (
en/documentation)
Using the "Documentation" function, from Product Support manuals, you can compile your
own "Documentation". However, you can also include other Product Support content such as
FAQs or characteristics in the documentation that you compile.
In the "Documentation" function, you have the option of creating your own compiled documents
in your own structure and managing them. You can delete or shift individual chapters or topics.
Further, using the note function you can import your own content. The compiled
"documentation" can be exported as PDF, for example.
https://support.industry.siemens.com/My/ww/
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016 13
Introduction
1.2 Compiling personal documents
Using the "Documentation" function, you can efficiently compile your own plant or system
documentation. The "Documentation" compiled in a specific language can also be
automatically exported in one of the other available languages.
The full functionality is only available for registered users.
SIMOTICS TN Series N-compact 1LA8
14 Operating Instructions 05/2016
Safety information
2.1 Information for the nominated person in control of the electrical installation
This electric machine has been designed and built in accordance with the specifications
contained in Directive 2006/95/EC up to April 19, 2016 - and from April 20, 2016 according to
Directive 2014/35/EU ("Low-Voltage Directive") and is intended for use in industrial plants.
Please observe the country-specific regulations when using the electric machine outside the
European Community. Follow the local and industry-specific safety and setup regulations.
The persons responsible for the plant must ensure the following:
● Planning and configuration work and all work carried out on and with the machine is only
to be done by qualified personnel.
● The operating instructions must always be available for all work.
● The technical data as well as the specifications relating to the permissible installation,
connection, ambient and operating conditions are taken into account at all times.
● The specific setup and safety regulations as well as regulations on the use of personal
protective equipment are observed.
Note
2
Use the services and support provided by the appropriate Service Center (Page 137) for
planning, installation, commissioning, and servicing work.
You will find safety instructions in the individual sections of this document. Follow the safety
instructions for your own safety, to protect other people and to avoid damage to property.
Observe the following safety instructions for all activities on and with the machine.
2.2 The five safety rules
For your own personal safety and to prevent material damage when carrying out any work,
always observe the safety-relevant instructions and the following five safety rules according
to EN 50110‑1 "Working in a voltage-free state". Apply the five safety rules in the sequence
stated before starting work.
Five safety rules
1. Disconnect the system.
Also disconnect the auxiliary circuits, for example, anti-condensation heating.
2. Secure against reconnection.
3. Verify absence of operating voltage.
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016 15
Safety information
2.4 Safe handling
4. Ground and short-circuit.
5. Provide protection against adjacent live parts.
To energize the system, apply the measures in reverse order.
2.3 Qualified personnel
All work at the machine must be carried out by qualified personnel only. For the purpose of
this documentation, qualified personnel is taken to mean people who fulfill the following
requirements:
● Through appropriate training and experience, they are able to recognize and avoid risks
and potential dangers in their particular field of activity.
● They have been instructed to carry out work on the machine by the appropriate person
responsible.
2.4 Safe handling
Workplace safety depends on the attentiveness, care, and common sense of the personnel
who install, operate, and maintain the machine. In addition to the safety measures cited, as a
matter of principle, the use of caution is necessary when you are near the machine. Always
pay attention to your safety.
Also observe the following to prevent accidents:
● General safety regulations applicable in the country where the machine is deployed.
● Manufacturer-specific and application-specific regulations
● Special agreements made with the operator
● Separate safety instructions supplied with the machine
● Safety symbols and instructions on the machine and its packaging
WARNING
Live parts
Electric machines contain live parts.
Fatal or severe injuries and substantial material damage can occur if the covers are removed
or if the machine is not handled, operated, or maintained properly.
● Always observe the “five safety rules" (Page 15) when carrying out any work on the
machine.
● Only remove the covers using the methods described by these operating instructions.
● Operate the machine properly.
● Regularly and correctly maintain the machine.
SIMOTICS TN Series N-compact 1LA8
16 Operating Instructions 05/2016
Safety information
2.4 Safe handling
WARNING
Rotating parts
Electric machines contain dangerous rotating parts.
Fatal or severe injuries and substantial material damage can occur if the covers are removed
or if the machine is not handled, operated, or maintained properly.
● Only remove the covers using the methods described by these operating instructions.
● Operate the machine properly.
● Regularly and correctly maintain the machine.
● Secure free-standing shaft ends and other rotating parts such as couplings, belt pulleys
etc. against touch.
WARNING
Hot surfaces
Electric machines have hot surfaces. Do not touch these surfaces. They could cause burns.
● Allow the machine to cool before starting work on the machine.
● Only remove the covers using the methods described by these operating instructions.
● Operate the machine properly.
CAUTION
Hazardous substances
Chemical substances required for the setup, operation and maintenance of machines can
present a health risk.
Poisoning, skin damage, cauterization of the respiratory tract, and other health damage may
result.
● Read the information in these operating instructions and the product information supplied
by the manufacturer.
● Observe the relevant safety regulations and wear the personal protective equipment
specified.
CAUTION
Flammable substances
Chemical substances required for the setup, operation and maintenance of machines may
be flammable.
Burns and other damage to health and material may result.
● Read the information in these operating instructions and the product information supplied
by the manufacturer.
● Observe the relevant safety regulations and wear the personal protective equipment
specified.
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016 17
Safety information
2.5 Electrostatic sensitive devices
WARNING
Noise emissions
During operation, the machine's noise emission levels can exceed those permitted at the
workplace, which can cause hearing damage.
Take steps to reduce noise, such as introducing covers and protective insulation or adopting
hearing protection measures, so that the machine can be operated safely within your system.
2.5 Electrostatic sensitive devices
ESD protective measures
NOTICE
Electrostatic discharge
Electronic modules contain components that can be destroyed by electrostatic discharge.
These modules can be easily destroyed by improper handling.
To protect your equipment against damage, follow the instructions given below.
● Never touch electronic modules unless absolutely necessary in the course of maintenance
and repair procedures.
● If the modules have to be touched, the body of the person concerned must be
electrostatically discharged immediately beforehand and be grounded.
● Electronic modules should not be brought into contact with electrically insulating materials
such as plastic film, plastic parts, insulating table supports or clothing made of synthetic
fibers.
● Always place electrostatic sensitive devices on conductive bases.
● Always pack, store and transport electronic modules or components in conductive
packaging, e.g. metallized plastic or metal containers, conductive foam material or
domestic aluminum foil.
SIMOTICS TN Series N-compact 1LA8
18 Operating Instructions 05/2016
Safety information
2.8 Influence on the line power supply through a strongly irregular torque
The necessary ESD protective measures for electrostatic sensitive devices are illustrated once
again in the following drawings:
(1) Sitting (2) Standing (3) Standing/sitting
a = conductive floor surface b = ESD table c = ESD shoes
d = ESD overall e = ESD wristband f = cabinet ground connection
2.6 Electromagnetic compatibility
This machine is designed in accordance with IEC/EN 60034 and, when used as prescribed, it
satisfies the requirements of European Directive 2004/108/EC - from April 20, 2016 of the
European directive 2014/30/EU on Electromagnetic Compatibility.
2.7 Interference immunity
The machine fulfills the requirements regarding interference immunity in conformity with IEC/
EN 61000‑6‑2.
On machines with integrated sensors (e.g. PTC thermistors), the manufacturer of the overall
system must himself ensure sufficient interference immunity by selecting suitable sensor signal
leads and evaluation units.
2.8 Influence on the line power supply through a strongly irregular torque
A strongly irregular torque, for example with the drive of a reciprocating motor, forces a nonsinusoidal motor current. The emerging harmonics can have an impermissible influence on
the line power supply via the connection lines.
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016 19
Safety information
2.10 Electromagnetic fields when operating electrical power engineering installations
2.9 Interference voltages when operating the converter
WARNING
Interference voltages when operating the converter
When a converter is in operation, the emitted interference varies in strength depending on
the converter (manufacturer, type, interference suppression measures undertaken). On
machines with integrated sensors (e.g. PTC thermistors), interference voltages caused by
the converter may occur on the sensor lead. This can cause faults which can result in eventual
or immediate death, serious injury or material damage.
Observe the EMC instructions of the converter manufacturer in order to avoid exceeding the
limit values according to IEC/EN 61000-6-3 for drive systems comprising machine and
converter. You must put appropriate EMC measures in place.
2.10 Electromagnetic fields when operating electrical power engineering
installations
WARNING
Interference to electronic devices caused by electrical power equipment
Electrical power equipment generate electric fields during operation. Potentially lethal
malfunctions can occur in medical implants, e.g. pacemakers, in the vicinity of electrical power
equipment. Data may be lost on magnetic or electronic data carriers.
● It is forbidden for people with pacemakers to enter the vicinity of the machine.
● Protect the personnel working in the plant by taking appropriate measures, such as
erecting identifying markings, safety barriers and warning signs and giving safety talks.
● Observe the nationally applicable health and safety regulations.
● Do not carry any magnetic or electronic data media.
SIMOTICS TN Series N-compact 1LA8
20 Operating Instructions 05/2016
Description
Applications
3
This electrical machine has been designed for a wide range of drive and energy conversion
applications. The machines are characterized by extreme ruggedness, long service life, and
overall reliability. They are also highly versatile, allowing them to be tailored to specific
functions.
Details of the supplied machine and permissible operating conditions can be found in this
documentation.
The machine was designed in accordance with the ordering party's specification and may only
be used for the contractually agreed purpose. The permissible operating conditions are
specified on the rating plate. The technical data are described in the catalog.
WARNING
Risk of explosion
This machine is not designed for use in hazardous areas. An explosion can occur if the
machine is operated in these areas. This can result in death, serious injury or material damage.
Machine design
Never operate this machine in hazardous areas.
The regulations and standards used as the basis to design and test this machine are stamped
on the rating plate.
The machine design basically complies with the subsequent standards. Please refer to the EC
or EU Declarations of Conformity for the versions of the harmonized standards referenced.
Table 3-1 Machine design
Feature Standard
Rating and performance IEC/EN 60034‑1
Degree of protection IEC/EN 60034‑5
Cooling IEC/EN 60034‑6
Type of construction IEC/EN 60034‑7
Terminal markings and direction of rotation IEC/EN 60034‑8
Noise emission IEC/EN 60034‑9
Starting characteristics, rotating electrical machines IEC/EN 60034‑12*
Vibration severity grades IEC/EN 60034‑14
Vibration limits DIN ISO 10816-3
* For machines in line operation only
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016 21
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Description
See also
Rating plate
Quality documents (Page 141)
The rating plate shows the identification data and the most important technical data. The data
on the rating plate and the contractual agreements define the limits of proper usage.
Image 3-1 Schematic diagram of rating plate
Table 3-2 Data on the rating plate
Item Description Item Description
(1) Type of motor (12) Rated speed [rpm]
(2) Motor type (13) Starting current ratio
(3) Serial number (14) (empty)
(4) Type of construction (15) Certificate number
(5) Temperature class (16) Degree of protection
(6) Rated voltage [V] and connections (17) Rotor class
(7) Rated frequency [Hz] (18) Motor weight [kg]
(8) (Content depending on the version) (19) Additional information (optional)
(9) Rated current [A] (20) Maximum speed [rpm]
(10) Rated power [kW] (21) Country of manufacture / City
(11) Power factor [cos φ]
22 Operating Instructions 05/2016
SIMOTICS TN Series N-compact 1LA8
Efficiency requirement
According to EU Regulation (EC) No. 640/2009, the IE3 efficiency requirement for low-voltage
motors with a power of 7.5 kW to 375 kW for line operation has been in force since January
01, 2015.
From January 1, 2017, the IE3 efficiency requirement for motors with a power of 0.75 kW to
375 kW applies for line operation.
Efficiency IE2 still applies for motors that are operated from a converter.
Please note the applicable country-specific rules and regulations.
Rotors
The rotor assembly is pressed onto the shaft together with the cage winding. The drive end of
the shaft usually has a cylindrical shaft end. Dependent on the design, a second shaft end
may be located at the non-drive end.
Description
Cooling
The cooling system is designed as a closed, internal cooling circuit. The heat lost from the
machine is dissipated to the ambient air via the machine's surface. A shaft-mounted fan moves
the cooling air in the primary circuit. Movement of the cooling air in the secondary circuit is
driven by a shaft-mounted fan.
Fan
● The internal fans are bidirectional.
● External fan:
– Machines with four poles and more as well as 1L.831.‑2: The external fans are
bidirectional.
– Two-pole machines except 1L.831.‑2: The external fans are unidirectional. The
machines have an additional label on the end shield and on the rating plate with an
arrow indicating the direction of rotation.
The 1L.831.‑2 can optionally also be equipped with a unidirectional external fan.
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016 23
Description
Rolling-contact bearings
The machines are equipped with different types of rolling-contact bearings depending on the
version and the operating conditions described in the order. The different types are listed on
the lubricant plate of the machine. In converter operation an insulated bearing is usually
installed on the non-drive end. The following rolling-contact bearing variants are available:
Table 3-3 Rolling-contact bearing variants
Version Rolling-contact bearing
Horizontal type of construction,
coupling output
Horizontal type of construction,
for increased transverse forces
e.g. in the case of belt coupling
Vertical type of construction,
shaft height 315, coupling output
Vertical type of construction,
shaft height 355 ... 450
● Drive end: Deep-groove ball bearing as a fixed bearing
● Non-drive end: Deep-groove ball bearing as a floating bearing
with axial compression springs
● Drive end: Cylindrical-roller bearing as a floating bearing
● Non-drive end: Deep-groove ball bearing as a fixed bearing
● Drive end: Deep-groove ball bearing as a fixed bearing
● Non-drive end: Deep-groove ball bearing as a floating bearing
with axial compression springs
● Drive end: Pairing of angular-contact ball bearing / deep-groove
ball bearing as a fixed bearing
● Non-drive end: Deep-groove ball bearing as a floating bearing
with axial compression springs
Rolling-contact bearing design for "Increased degree of protection" (option)
Improved sealing of the bearing units to prevent dust and water from getting in can be achieved
by positioning a grease chamber ahead of the actual bearing unit. Although the same grease
is used in both cases for reasons of convenience, a distinction is made here between
"lubricating grease" and "sealing grease" because of their different functions.
Layout
The spent lubricating grease collects in the space between the bearing housing and the outer
bearing cap. The latter also forms the sealing grease chamber with the labyrinth sealing ring
(optional). The second lubricating nipple containing the grease duct for pressing in the sealing
grease is also located in the outer bearing cap. The chamber is sealed off from the space
where the lubricating grease collects by a V-ring or a V-ring and felt ring combination which
prevents the sealing grease in the chamber from penetrating into the lubricating grease
collecting space. During operation, the sealing grease in the chamber slowly runs out via the
labyrinth and seals it, additionally removing dust from inside and around the outside of the
labyrinth ring.
Terminal box
The terminal box can be arranged either on the left or right of the machine. It is not possible
to change the position to the other side of the machine at a later date.
SIMOTICS TN Series N-compact 1LA8
24 Operating Instructions 05/2016
Description
If you wish to upgrade to the next largest terminal box at a later date, please contact the
manufacturer.
Depending on the shaft height, the following terminal boxes are used for connecting the cables:
Table 3-4 Assignment of shaft heights to terminal boxes
Shaft height Terminal box
315 GT640
315 ... 355 1XB1621
315 … 450 1XB1631
315 … 450 1XB1634
315 … 450 1XB9600
①
Not for explosion-proof versions
①
①
Note
Rotating the terminal box
Depending on the version, the terminal box can be rotated. It can then be rotated through
increments of 90° corresponding to the connection direction.
If required, contact your Service Center (Page 137).
Supplementary devices
Depending on the order, various supplementary devices can be installed or mounted. These
include sensors for bearing temperature monitoring or winding monitoring, for example.
Anti-condensation heating (option)
The machine is fitted with anti-condensation heating. The connection data is listed on an
additional plate on the machine.
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016 25
Description
SIMOTICS TN Series N-compact 1LA8
26 Operating Instructions 05/2016
Preparations for use
Good planning and preparation of machine applications are essential in terms of keeping
installation simple and avoiding errors, ensuring safe operation, and allowing access to the
machine for servicing and corrective maintenance.
This chapter outlines what you need to consider when configuring your plant in relation to this
machine and the preparations you need to make before the machine is delivered.
4.1 Safety-related aspects to consider when configuring the plant
A number of residual risks are associated with the machine. These are described in the chapter
titled "Safety information" (Page 15) and in related sections.
Take appropriate safety precautions (covers, barriers, markings, etc.) to ensure the machine
is operated safely within your plant.
4.2 Observing the operating mode
Observe the machine's operating mode. Use a suitable control system to prevent overspeeds,
thus protecting the machine from damage.
4
4.3 Thermal motor protection
The machine is equipped with PTC thermistors for direct monitoring of the motor temperature
to protect the machine against overheating during operation. Plan a corresponding circuit for
monitoring.
See also
Set values for monitoring the winding temperature (Page 84)
Setpoint values for monitoring the bearing temperature (Page 84)
4.4 Interlock circuit for anti-condensation heating (option)
If the anti-condensation heating is operated while the machine is running, this can increase
the temperatures inside the machine.
● Install an interlock circuit that switches off the anti-condensation heating once the main
machine is switched on.
● Only switch on the anti-condensation heating after the motor has been switched off.
Carefully comply with the data on the anti-condensation heating plate.
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016 27
Preparations for use
4.7 Phase synchronization during supply system switching
See also
Switching off the anti-condensation heating (Page 88)
4.5 Noise emissions
WARNING
Noise emissions
During operation, the machine's noise emission levels can exceed those permitted at the
workplace, which can cause hearing damage.
Take steps to reduce noise, such as introducing covers and protective insulation or adopting
hearing protection measures, so that the machine can be operated safely within your system.
4.6 Rotational speed limit values
WARNING
Excessively high speeds
Excessive rotational speed can lead to serious damage to the machine. This can result in
death, serious injury, or material damage.
● Avoid operation above the permissible speed by using the appropriate control function.
● Observe the speeds stamped on the rating plate.
4.7 Phase synchronization during supply system switching
NOTICE
Supply system switching
Damage to the machine may be caused when switching to another supply system with
different phasing.
● The phasing must be synchronized during switching. Use appropriate means to
synchronize the phasing.
SIMOTICS TN Series N-compact 1LA8
28 Operating Instructions 05/2016
Preparations for use
4.10 System-inherent frequencies
4.8 Space requirements
Observe the minimum dimension for the air inlet at the machine site:
Table 4-1 Minimum dimensions for air intake
Shaft height
31. 35. 40. 45.
130 mm 140 mm 150 mm 160 mm
4.9 Voltage and frequency fluctuations during line operation
If nothing else is stamped on the nameplate, then the permissible voltage fluctuation is ±5 %
and the permissible frequency fluctuation is ±2 %, corresponding to range A in
IEC / EN 60034‑1. Permissible fluctuations that go beyond this are specified on the nameplate,
e.g. voltage fluctuation of ±10 % corresponding to range B in IEC / EN 60034‑1.
The following applies: Under practical operating conditions a machine may sometimes have
to be operated outside the limits of Range A. Exceptions of this sort should be limited with
regard to the values that arise, how often and for how long they occur. Where possible and
within a reasonable time take corrective actions such as reducing the power. Such actions can
avoid thermal ageing leading to a reduction in the service life of the machine.
NOTICE
Overheating of the winding
Exceeding the permissible tolerances for voltage and frequency can lead to an impermissibly
high temperature rise in the windings and thus cause long-term damage to the machine.
4.10 System-inherent frequencies
NOTICE
Machine damage caused by system resonances
The system consisting of the foundation and machine set must be configured and matched
in such a way that no system resonances can arise and result in the permissible vibration
levels being exceeded. Excessive vibrations can damage the machine set. The vibration limit
values according to DIN ISO 10816-3 must not be exceeded.
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2016 29
Preparations for use
4.12 Transport and storage
4.11 Torsional loading of the drive train due to faults in the electrical supply
In the event of faults in the electrical connection during operation, excessive air gap torques
can lead to additional mechanical torsional load on the line shaft.
Note
The system planner is responsible for the entire drive train.
WARNING
Serious damage to the machine
If the configuration does not correctly recognize the mechanical torsional loadings of the shaft
assembly, this can lead to serious damage to the machine. This can result in death, serious
injury or material damage.
When planning the system, consider the configuration data.
Note
More information about this may be found in the catalog.
4.12 Transport and storage
When carrying out any work on the machine, observe the general safety instructions
(Page 15) and the specifications contained in EN 50110‑1 regarding safe operation on
electrical equipment.
4.12.1 Transport markings
The packing differs depending on the transport type and size. If not otherwise contractually
agreed, the packaging corresponds to the packing guidelines for International Standards for
Phytosanitary Measures (ISPM).
Note the symbols which appear on the packing. These have the following meanings:
Top Fragile material Keep dry Keep cool Center of
gravity
30 Operating Instructions 05/2016
Do not use
hand hook
SIMOTICS TN Series N-compact 1LA8
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