www.siemens.com/drives
Operating Instructions
Installation Instructions
Low-voltage motor
SIMOTICS FD
Type 1LN1
Edition 01/2019
23.01.2019 19:05
V11.01
Low-voltage motor
SIMOTICS FD
Type 1LN1
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 and drawings
Quality documents
9
10
11
A
B
C
Edition 01/2019
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: A5E32582260
Ⓟ 01/2019 Subject to change
Copyright © Siemens AG 2018.
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 5 safety rules...................................................................................................................15
2.3 Qualified personnel ................................................................................................................16
2.4 Safe handling .........................................................................................................................16
2.5 Electrostatic sensitive devices ...............................................................................................18
2.6 Interference immunity.............................................................................................................18
2.7 Interference voltages when operating the converter ..............................................................19
2.8 Electromagnetic fields when operating electrical power engineering installations.................19
3 Description..................................................................................................................................................21
4 Preparations for use ...................................................................................................................................29
4.1 Safety-related aspects to consider when configuring the plant..............................................29
4.2 Observing the operating mode...............................................................................................29
4.3 Ensuring cooling.....................................................................................................................29
4.4 Space requirement.................................................................................................................30
4.5 Configuration of the cooling circuit and coolant supply ..........................................................31
4.5.1 Material selection for the cooling circuit .................................................................................31
4.5.2 Pressures and differential pressures in the cooling circuit.....................................................32
4.5.3 Components and materials of the cooling circuit ...................................................................32
4.5.4 Potential equalization on the cooling circuit components.......................................................33
4.6 Coolant specification ..............................................................................................................33
4.6.1 General coolant requirements................................................................................................33
4.6.2 Coolant specification..............................................................................................................35
4.6.3 Inhibitors, anti-freeze, biocides ..............................................................................................36
4.6.4 Cooling capacity derating.......................................................................................................37
4.7 Interlock circuit for the external fan motor ..............................................................................38
4.8 Thermal motor protection .......................................................................................................38
4.9 Thermal motor protection using PTC thermistors (option) .....................................................38
4.10 Interlock circuit for the automatic regreasing system (option)................................................38
4.11 Interlock circuit for anti-condensation heating........................................................................38
4.12 IM B5 type of construction with support foot ..........................................................................39
SIMOTICS FD 1LN1
Operating Instructions 01/2019 5
Table of contents
4.13 Noise emissions .....................................................................................................................39
4.14 Rotational speed limit values .................................................................................................39
4.15 Voltage and frequency fluctuations during line operation ......................................................40
4.16 Phase synchronization during supply system switching ........................................................40
4.17 System-inherent frequencies .................................................................................................40
4.18 Torsional load of the drive train..............................................................................................40
4.19 Transport................................................................................................................................41
4.19.1 Safety instructions for transport .............................................................................................41
4.19.2 Checking the delivery.............................................................................................................43
4.19.3 Securing the rotor...................................................................................................................44
4.19.4 Lifting and transporting the machine ......................................................................................46
4.20 Storage...................................................................................................................................46
4.20.1 Storing the machine ...............................................................................................................46
4.20.2 Protecting the cooling water circuit during storage ................................................................49
4.20.3 Protection against corrosion...................................................................................................50
4.21 Converter operation ...............................................................................................................50
4.21.1 Supply line configuration ........................................................................................................50
4.21.2 Converter input voltage ..........................................................................................................51
4.21.3 Reducing bearing currents .....................................................................................................51
4.21.4 Insulated bearings when operating the converter ..................................................................52
4.21.5 Converter operation on a grounded network..........................................................................54
5 Assembly ....................................................................................................................................................55
5.1 Safety instructions for mounting.............................................................................................55
5.2 Preparations for installation....................................................................................................56
5.2.1 Requirements for installation..................................................................................................56
5.2.2 Insulation resistance and polarization index ..........................................................................56
5.2.3 Testing the insulation resistance and polarization index........................................................57
5.2.4 Prepare the mating faces (IM B3) ..........................................................................................60
5.2.5 Prepare the mating face for a flange connection ...................................................................60
5.2.6 Prepare the mating face for wall mounting ............................................................................60
5.3 Lift the machine to where it will be installed, and position it...................................................60
5.3.1 Preconditions for correct alignment and secure attachment .................................................60
5.3.2 Checking the load handling attachments ...............................................................................61
5.3.3 Removing the rotor shipping brace ........................................................................................61
5.3.4 Removing the rotor shipping brace from machines in vertical type........................................61
5.3.5 Removing anti-corrosion protection .......................................................................................62
5.3.6 Mounting the output elements................................................................................................62
5.3.7 Lifting and transportation........................................................................................................64
5.3.8 Putting the machine down......................................................................................................65
5.3.9 Draining condensation ...........................................................................................................66
5.3.10 Roughly aligning the machine ................................................................................................67
5.4 Installing the machine ............................................................................................................68
5.4.1 Preconditions for smooth, vibration-free operation ................................................................68
5.4.2 Aligning the machine to the driven machine and mounting (IM B3 / IM B35) ........................68
5.4.3 Aligning the machine to the driven machine and attaching it to it (IM B5) .............................70
SIMOTICS FD 1LN1
6 Operating Instructions 01/2019
Table of contents
5.4.4 Aligning the machine to the driven machine and attaching it to it (IM V1, IM V10)................71
5.4.5 Axial and radial forces............................................................................................................71
5.5 Connecting the cooling water supply .....................................................................................72
6 Electrical connection...................................................................................................................................75
6.1 Safety instructions for the electrical connection .....................................................................75
6.2 Basic rules..............................................................................................................................75
6.3 Terminal box ..........................................................................................................................76
6.3.1 Terminal box 1XB1621...........................................................................................................77
6.3.2 Terminal box 1XB1631...........................................................................................................77
6.3.3 Terminal box 1XB7730...........................................................................................................78
6.3.4 Terminal box 1XB7731...........................................................................................................79
6.3.5 Terminal box 1XB7740...........................................................................................................79
6.3.6 Terminal box 1XB7750...........................................................................................................80
6.3.7 Rotating the terminal box .......................................................................................................80
6.3.8 Mounting/removing the terminal box......................................................................................83
6.4 Preparation.............................................................................................................................84
6.4.1 Terminal designation..............................................................................................................84
6.4.2 Selecting cables.....................................................................................................................84
6.4.3 Connecting the grounding conductor .....................................................................................85
6.4.4 Connection without terminal box............................................................................................86
6.4.5 Connecting the machine for a specific direction of rotation....................................................87
6.4.6 Undrilled entry plate ...............................................................................................................87
6.5 Inserting and routing the cables .............................................................................................88
6.5.1 Bringing cables into the terminal box 1XB... with sealing insert with break-off ring ...............88
6.5.2 Bringing cables into the terminal box 1XB... with cable gland................................................89
6.5.3 Laying cables .........................................................................................................................90
6.5.4 Connecting cables with cable lugs.........................................................................................90
6.5.5 Connecting cables without cable lugs....................................................................................91
6.5.6 Use of aluminum conductors..................................................................................................93
6.5.7 Using single-stranded cables.................................................................................................93
6.5.8 Internal equipotential bonding................................................................................................93
6.5.9 Stepless mating face for the seal in the terminal box cover ..................................................94
6.5.10 Minimum air clearances .........................................................................................................94
6.5.11 Finishing connection work......................................................................................................95
6.6 Connecting the auxiliary circuits.............................................................................................95
6.6.1 Selecting cables.....................................................................................................................95
6.6.2 Bringing cables into the auxiliary terminal box and routing them...........................................96
6.6.3 Connecting an external fan motor..........................................................................................96
6.6.4 Connecting temperature monitoring for the stator winding ....................................................97
6.6.5 Terminating the connection work (auxiliary circuit) ................................................................98
7 Start-up.......................................................................................................................................................99
7.1 Checks to be carried out prior to commissioning ..................................................................99
7.2 Converter operation .............................................................................................................101
7.3 Measuring the insulation resistance before commissioning.................................................101
7.4 Greasing the roller bearings prior to commissioning............................................................102
SIMOTICS FD 1LN1
Operating Instructions 01/2019 7
Table of contents
7.5 Setting the automatic regreasing system .............................................................................103
7.6 Commissioning an external fan............................................................................................103
7.7 Setpoint values for monitoring the bearing temperature ......................................................104
7.8 Set values for monitoring the winding temperature..............................................................105
7.9 Test run ................................................................................................................................105
7.10 Switching off.........................................................................................................................107
7.11 Setting the motor parameters at the converter.....................................................................107
7.11.1 Selecting the motor type and motor data in the STARTER program ...................................107
7.11.2 Commissioning at the SINAMICS S/G converter using the AOP30.....................................110
7.11.3 Commissioning at the SINAMICS G120P inverter using the IOP ........................................113
8 Operation..................................................................................................................................................115
8.1 Safety instructions for operation...........................................................................................115
8.2 Switching on the machine ....................................................................................................117
8.3 Regreasing roller bearings ...................................................................................................117
8.4 Stoppages ............................................................................................................................117
8.4.1 Avoidance of frost and corrosion damage in the cooling system.........................................118
8.4.2 Avoidance of condensation or formation of condensation within the machine.....................118
8.4.3 Avoidance of damage to roller bearings during stoppages..................................................118
8.4.4 Measurement of the insulation resistance after an extended stoppage...............................119
8.5 Decommissioning the machine ............................................................................................119
8.6 Switch off the external fan....................................................................................................119
8.7 Switching off the water-cooling system ................................................................................119
8.8 Re-commissioning the machine ...........................................................................................120
8.9 Switching on again after an emergency switching-off ..........................................................120
8.10 faults.....................................................................................................................................120
8.10.1 Inspections in the event of faults..........................................................................................120
8.10.2 Electrical faults .....................................................................................................................121
8.10.3 Mechanical faults .................................................................................................................121
8.10.4 Air-to-water cooler faults ......................................................................................................122
8.10.5 Faults at the external fan......................................................................................................123
8.10.6 Roller bearing faults .............................................................................................................124
9 Maintenance .............................................................................................................................................125
9.1 Inspection and maintenance ................................................................................................125
9.1.1 Safety instructions for inspection and maintenance.............................................................125
9.1.2 Measuring the insulation resistance during the course of maintenance work......................127
9.1.3 Inspections in the event of faults..........................................................................................127
9.1.4 First service after installation or repair .................................................................................127
9.1.5 General inspection ...............................................................................................................128
9.1.6 Inspection of the cooling system..........................................................................................129
9.1.7 Servicing and maintaining the anti-condensation heating....................................................129
9.1.8 Assessing the roller bearings...............................................................................................129
9.1.9 Roller bearings with automatic regreasing system...............................................................129
SIMOTICS FD 1LN1
8 Operating Instructions 01/2019
Table of contents
9.1.10 Regreasing intervals and types of grease for operating roller bearings...............................130
9.1.11 Sealing the rolling-contact bearings ("Increased degree of protection" option) ...................133
9.1.12 Cleaning the air-to-water heat exchanger ............................................................................134
9.1.13 Servicing the external fan.....................................................................................................134
9.1.14 Touch up any damaged paintwork .......................................................................................135
9.1.15 Maintaining terminal boxes ..................................................................................................135
9.2 Corrective Maintenance .......................................................................................................136
9.2.1 Prepare servicing work.........................................................................................................136
9.2.2 Screws with preCOTE coating .............................................................................................137
9.2.3 External fan..........................................................................................................................137
9.2.3.1 Replacing the external fan ...................................................................................................137
9.2.3.2 External fan unit ...................................................................................................................137
9.2.3.3 Adjusting the external fan.....................................................................................................138
9.2.4 Roller-contact bearings ........................................................................................................139
9.2.4.1 Removing roller bearing .......................................................................................................139
9.2.4.2 Remove V ring .....................................................................................................................139
9.2.4.3 Removing the labyrinth sealing ring .....................................................................................140
9.2.4.4 Installing roller bearings .......................................................................................................141
9.2.4.5 Install the V ring ...................................................................................................................142
9.2.4.6 Installing the V ring ("Increased degree of protection" option) .............................................143
9.2.4.7 Installing the labyrinth sealing ring .......................................................................................143
9.2.5 Top enclosure ......................................................................................................................144
9.2.5.1 Removing and installing the air-to-water-cooler...................................................................144
9.2.5.2 Removing the top enclosure ................................................................................................145
9.2.5.3 Mounting the top enclosure..................................................................................................147
9.2.6 Seal the motor......................................................................................................................148
10 Spare parts ...............................................................................................................................................149
10.1 Ordering data .......................................................................................................................149
10.2 Ordering spare parts via the Internet ...................................................................................150
10.3 Anti-condensation heating....................................................................................................150
10.4 Housing, stators and rotors ..................................................................................................151
10.5 Top enclosure ......................................................................................................................153
10.6 Roller bearing cartridge at the drive and non-drive end .......................................................154
10.7 Roller bearing cartridge at the drive and non-drive end .......................................................155
10.8 Terminal box 1XB1621.........................................................................................................156
10.9 Terminal box 1XB1631.........................................................................................................158
10.10 Terminal box 1XB7730.........................................................................................................159
10.11 Terminal box 1XB7731.........................................................................................................160
10.12 Terminal box 1XB7740.........................................................................................................161
10.13 Terminal box 1XB7750.........................................................................................................162
10.14 Auxiliary terminal box 1XB9014 ...........................................................................................163
10.15 Auxiliary terminal box 1XB9015 ...........................................................................................164
10.16 1XB9016 auxiliary terminal box............................................................................................165
SIMOTICS FD 1LN1
Operating Instructions 01/2019 9
Table of contents
10.17 Auxiliary terminal box 1XB302. ............................................................................................166
11 Disposal....................................................................................................................................................167
11.1 RoHS - restricting the use of certain hazardous substances ...............................................167
11.2 Information according to Article 33 of the REACH regulation ..............................................167
11.3 Preparing for disassembly....................................................................................................168
11.4 Dismantling the machine......................................................................................................168
11.5 Disposal of components.......................................................................................................168
A Service and Support .................................................................................................................................171
B Technical data and drawings....................................................................................................................173
B.1 Tightening torques for screw and bolt connections..............................................................173
C Quality documents....................................................................................................................................175
Index.........................................................................................................................................................177
Tables
Table 3-1 Machine design ..........................................................................................................................21
Table 3-2 Data on the rating plate...............................................................................................................23
Table 3-3 Rolling-contact bearing variants..................................................................................................26
Table 4-1 Space required for the separately-driven fan ..............................................................................30
Table 4-2 Space required for removing/installing the water cooler .............................................................30
Table 4-3 Materials and components of a cooling circuit ............................................................................32
Table 4-4 Substances that can destroy the cooling system ........................................................................34
Table 4-5 Overview and application of coolant additives ............................................................................36
Table 5-1 Stator winding insulation resistance at 40° C..............................................................................58
Table 5-2 Permissible deviations for aligning the machine with flexible coupling .......................................69
Table 6-1 Terminal designations using the 1U1-1 as an example ..............................................................84
Table 6-2 Connection technology (with cable lug / connection without cable lug) ......................................88
Table 6-3 Cable entry plate versions...........................................................................................................89
Table 6-4 Minimum air clearance dependent on rms value of the alternating voltage U
.........................94
rms
Table 7-1 Set values for monitoring the bearing temperatures before commissioning .............................104
Table 7-2 Set values for monitoring the bearing temperatures .................................................................104
Table 7-3 Set value for commissioning ....................................................................................................105
Table 7-4 Set values during normal operation...........................................................................................105
Table 8-1 Electrical faults .....................................................................................................................121
Table 8-2 Mechanical faults.......................................................................................................................121
Table 8-3 Cooling system faults ...........................................................................................................122
Table 8-4 Cooling system faults .............................................................................................................123
Table 8-5 Roller bearing faults .............................................................................................................124
SIMOTICS FD 1LN1
10 Operating Instructions 01/2019
Table of contents
Table 9-1 Checks after assembly or repair ...............................................................................................127
Table 9-2 Checks that have to be performed during the general inspection.............................................128
Table 9-3 Criteria for selecting rolling bearing greases.............................................................................130
Table 9-4 Rolling bearing greases for vertical and horizontal types of construction ................................131
Table 9-5 Alternative greases with NLGI class 2 for motors of horizontal construction ............................131
Table 10-1 Spare parts for housing, stators and rotors ...............................................................................151
Table 10-2 Spare parts for the top enclosure ..............................................................................................153
Table 10-3 Spare parts for the bearing cartridge at the drive end and non-drive end.................................154
Table 10-4 Spare parts for the bearing cartridge at the drive end and non-drive end.................................155
Table 10-5 Terminal box 1XB1621 spare parts...........................................................................................156
Table 10-6 Additional spare parts................................................................................................................157
Table 10-7 Additional spare parts for terminal box 1XB1631 with split cable entry.....................................158
Table 10-8 Main terminal box 1XB7730 spare parts ...................................................................................159
Table 10-9 Additional spare parts................................................................................................................159
Table 10-10 Main terminal box 1XB7731 spare parts ...................................................................................160
Table 10-11 Additional spare parts................................................................................................................160
Table 10-12 Main terminal box 1XB7740 spare parts ...................................................................................161
Table 10-13 Additional spare parts................................................................................................................161
Table 10-14 Terminal box 1XB7750..............................................................................................................162
Table B-1 Tightening torques for bolted connections with a tolerance of ±10%........................................173
Figures
Figure 3-1 Schematic of the rating plate.......................................................................................................23
Figure 4-1 Axial fastening of the rotor...........................................................................................................45
Figure 4-2 Schematic representation of a single drive .................................................................................53
Figure 4-3 Schematic representation of a tandem drive...............................................................................53
Figure 5-1 Balancing type on the drive-end side ..........................................................................................62
Figure 5-2 Condensation water drain for vertical mounting..........................................................................66
Figure 5-3 Condensation water drain for horizontal mounting......................................................................67
Figure 5-4 Schematic diagram: Aligning the machine to the driven machine...............................................69
Figure 6-1 Water drip loop............................................................................................................................76
Figure 6-2 Terminal box 1XB1621................................................................................................................77
Figure 6-3 Terminal box 1XB1631................................................................................................................77
Figure 6-4 Terminal box 1XB7730................................................................................................................78
Figure 6-5 Terminal box 1XB7731................................................................................................................79
Figure 6-6 Terminal box 1XB7740................................................................................................................79
Figure 6-7 Terminal box 1XB7750................................................................................................................80
Figure 6-8 Strain relief device and sealing insert..........................................................................................88
SIMOTICS FD 1LN1
Operating Instructions 01/2019 11
Table of contents
Figure 6-9 Connection with cable lug and fixing screw (schematic diagram)...............................................91
Figure 6-10 Connection using terminal clamps (schematic diagram).............................................................92
Figure 7-1 Selecting a motor type...............................................................................................................108
Figure 7-2 Entering the motor data.............................................................................................................109
Figure 9-1 Remove the V ring.....................................................................................................................139
Figure 9-2 Disassembling the labyrinth sealing ring (schematic diagram) .................................................140
Figure 9-3 Install the V ring.........................................................................................................................142
Figure 9-4 Roller-contact bearing with grease chamber (schematic diagram) ...........................................143
Figure 9-5 Position the set screws for the labyrinth sealing ring on the outer bearing cover .....................144
Figure 10-1 Housing, stators and rotors .......................................................................................................151
Figure 10-2 Top enclosure............................................................................................................................153
Figure 10-3 Bearing cartridge at the drive end and non-drive end ...............................................................154
Figure 10-4 Bearing cartridge at the drive end and non-drive end ...............................................................155
Figure 10-5 Terminal box 1XB1621 with standard cable entry.....................................................................156
Figure 10-6 Two-part cable entry..................................................................................................................156
Figure 10-7 Terminal box 1XB1631..............................................................................................................158
Figure 10-8 Main terminal box 1XB7730 ......................................................................................................159
Figure 10-9 Main terminal box 1XB7731 ......................................................................................................160
Figure 10-10 Main terminal box 1XB7740 ......................................................................................................161
Figure 10-11 Terminal box 1XB7750 with standard cable entry.....................................................................162
Figure 10-12 Auxiliary terminal box 1XB9014 .............................................................................................163
Figure 10-13 Auxiliary terminal box 1XB9015 .............................................................................................164
Figure 10-14 1XB9016 auxiliary terminal box ...............................................................................................165
Figure 10-15 Auxiliary terminal box 1XB302. .................................................................................................166
SIMOTICS FD 1LN1
12 Operating Instructions 01/2019
Introduction
In the following text, the motor is referred to as "electrical machine" – or abbreviated, just
"machine".
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.
Safety instructions and handling-related warning notes are provided in these instructions.
When carrying out any activity at or with the machine, carefully comply with all of these notes
for your own safety, to protect other people and to avoid material damage.
Please contact the Service Center (Page 171) if you have any suggestions on how to improve
this document.
1
Text format features
You can find the following text format features in these instructions:
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
The note provides you with additional information about the product itself, handling the product
- and the relevant documentation.
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 (
support.industry.siemens.com/My/ww/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.
https://
SIMOTICS FD 1LN1
Operating Instructions 01/2019 13
Introduction
1.2 Compiling personal documents
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.
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 FD 1LN1
14 Operating Instructions 01/2019
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 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 local service center (Page 171) for planning,
installation, commissioning and service work.
2.2 The 5 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.
5 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.
4. Ground and short-circuit.
5. Provide protection against adjacent live parts.
To energize the system, apply the measures in reverse order.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 15
Safety information
2.3 Qualified personnel
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
Danger as a result of stationary parts under voltage (live parts)
Live parts represent a hazard. Touch protection against active (live) parts is no longer
guaranteed if covers are removed. The minimum clearance and creepage distances may be
violated when coming close to live parts. Touching or coming close to them can result in death,
serious injury or material damage.
● Ensure that all live parts are suitably covered.
● Switch off and disconnect the machine first if you want to remove covers. Observe the "5
safety rules".
Risk of injury due to rotating parts
Rotating parts are dangerous. Touch protection against rotating parts is no longer guaranteed
if covers are removed. Touching rotating parts can result in death, serious injury or material
damage.
● Ensure that all rotating parts are reliably covered.
● Switch off and disconnect the machine first if you want to remove covers. Observe the "5
safety rules".
● Only remove covers when the rotating parts have come to a complete standstill.
SIMOTICS FD 1LN1
16 Operating Instructions 01/2019
Risk of burns due to hot surfaces
Individual machine parts can become hot in operation. Burns can result when coming into
contact with these parts.
● Never touch machine parts during operation.
● Allow the machine to cool before starting work on the machine.
● Check the temperature of parts before touching them. If required, wear suitable protective
equipment.
Health hazard due to chemical substances
Chemical substances required for the setup, operation and maintenance of machines can
present a health risk.
● Observe the product information provided by the manufacturer.
Flammable substances hazard
Chemical substances required for the setup, operation and maintenance of machines may be
flammable. These substances can ignite if handled incorrectly. They can cause burns and
property damage.
Safety information
2.4 Safe handling
See also
Noise emissions
● Observe the product information provided by the manufacturer.
The 5 safety rules (Page 15)
During operation, the machine's noise emission levels can exceed those permitted at the
workplace, which can cause hearing damage.
● Ensure that nobody is in the area of increased noise emissions during machine operation.
● Take steps to reduce noise so that the machine can be operated safely within your system.
The following measures may help to reduce noise.
– Covers
– Noise insulation
– Hearing protection measures
SIMOTICS FD 1LN1
Operating Instructions 01/2019 17
6HDWLQJSRVLWLRQ
6WDQGLQJSRVLWLRQ
6WDQGLQJVHDWLQJSRVLWLRQ
EE
D
F
D
IIIII
D
FF
H
GG
H
G
Safety information
2.5 Electrostatic sensitive devices
2.5 Electrostatic sensitive devices
Material damage due to electrostatic discharge
Electronic modules contain components that can be destroyed by electrostatic discharge.
These components can be damaged or destroyed if they are not handled correctly. To protect
equipment against damage, follow the instructions given below.
● Only touch electronic modules if you absolutely have to work on them.
● The body of the person concerned must have been electrostatically discharged and
grounded immediately before any electronic modules are touched.
● Electronic modules should not be brought into contact with electrically insulating materials,
such as:
– Plastic film
– Plastic parts
– Insulating table supports
– 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, such as:
– Metallized plastic or metal containers
– Conductive foam material
– Domestic aluminum foil
The necessary ESD protective measures for electrostatic sensitive devices are illustrated once
again in the following drawings:
a = conductive floor surfaceb = ESD table c = ESD shoes
d = ESD overall e = ESD wristband f = cabinet ground connection
2.6 Interference immunity
By selecting suitable signal cables and evaluation units, ensure that the interference immunity
of the machine is not diminished.
18 Operating Instructions 01/2019
SIMOTICS FD 1LN1
Safety information
2.7 Interference voltages when operating the converter
2.7 Interference voltages when operating the converter
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.
● Comply with the EMC information provided by the manufacturer of the converter. This is how
you prevent the limit values stipulated by IEC/EN 61000-6-3 for the drive system (consisting
of the machine and converter) from being exceeded.
● You must put appropriate EMC measures in place.
2.8 Electromagnetic fields when operating electrical power engineering installations
Electrical power equipment generate electromagnetic 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.
● 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.
● It is forbidden for people with pacemakers to be close to the machine.
● Do not carry any magnetic or electronic data media.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 19
Safety information
2.8 Electromagnetic fields when operating electrical power engineering installations
SIMOTICS FD 1LN1
20 Operating Instructions 01/2019
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.
● Never operate this machine in hazardous areas.
Machine design
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 EU
Declaration 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 of rotating electrical machines * IEC/EN 60034‑12
Vibration severity grades IEC/EN 60034‑14
SIMOTICS FD 1LN1
Operating Instructions 01/2019 21
Description
Feature Standard
Efficiency classification of three-phase squirrel-cage induction motors ** IEC/EN 60034-30-1
Vibration limits DIN ISO 10816-3
* For machines in line operation only
** Exception: Pole-changing motors
See also
Quality documents (Page 175)
Comparison of IEC and GOST standards
The IEC/EN standards correspond to the following GOST standards.
IEC/EN GOST
IEC/EN 60034-1 GOST R IEC 60034-1
IEC/EN 60034-5 GOST R IEC 60034-5
IEC/EN 60034-6 GOST R IEC 60034-6
IEC/EN 60034-7 GOST R IEC 60034-7
IEC/EN 60034-8 GOST R IEC 60034-8
IEC/EN 60034-9 GOST R IEC 60034-9
IEC/EN 60034-12 GOST R IEC 60034-12
IEC/EN 60034-14 GOST R IEC 60034-14
Rating plate
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.
SIMOTICS FD 1LN1
22 Operating Instructions 01/2019
'(:
RR
RR
SIEMENS
Description
Figure 3-1 Schematic of the rating plate
Table 3-2 Data on the rating plate
Item Description Item Description
(1) Type of motor (15) Rated power [kW or HP]
(2) Order number (16) Rated efficiency factor
(3) Identifier of the motor series (17) Rated speed [rpm]
(4) Serial number (18) Rated frequency [Hz]
(5) Weight (19) Efficiency class (IE code) or efficiency ac‐
(6) Degree of protection (20) Efficiency according to IEC/EN 60034-2-1
(7) Type of construction (21) Motor design (converter or mains motor)
(8) Permissible ambient temperature range (22) Line voltage/frequency
(9) Thermal class of the insulation system (23) Optional additional data (e.g. service fac‐
(10) Thermal class of the utilization (24) Country of manufacture and location
(11) Maximum speed [rpm] (25) Certification mark for UL/CSA + file number
(12) Standards (26) Certificate number(s) for Ex motors for
cording to IEEE112B or empty
or current at service factor power
tor, design and code letter, amount of cool‐
ing water and intake temperature, etc.)
(optional)
Zone 2 (optional)
SIMOTICS FD 1LN1
Operating Instructions 01/2019 23
Description
Relevant directives
Item Description Item Description
(13) Rated voltage [V] and connections (27) Direction of rotation
(14) Rated current [A] (28) Data matrix code (order number and serial
number)
The following directives are relevant for the SIMOTICS motor series.
European low-voltage directive
The SIMOTICS motor series complies with the requirements of the low-voltage directive
2014/35/EU.
Eurasian Conformity
The SIMOTICS motor series complies with the requirements of the Russia/Belarus/
Kazakhstan customs union (EAC).
Underwriters Laboratories
The SIMOTICS motor series generally complies with UL and cUL requirements as component
of motor applications - and is correspondingly listed. Specifically developed motors and
functions are the exceptions in this case. Carefully observe the content of the quotation, and
that there is a cUL-marking on the rating plate.
Rotors
Quality management system
Siemens AG employs a quality management system that meets the requirements of ISO 9001
and ISO 14001.
Certificates that can be downloaded
You can download certificates for the SIMOTICS motor series at the following link:
Certificates (https://support.industry.siemens.com/cs/ww/en/ps/13358/cert)
The following directives are not relevant
● European EMC directive: The products are not considered as devices in the sense of the
directive.
● European Machinery Directive: However, the use of the products in a typical machine
application has been fully assessed for compliance with the main regulations in this directive
concerning health and safety.
● China Compulsory Certification (CCC): The SIMOTICS motor series does not fall under the
area of application.
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.
SIMOTICS FD 1LN1
24 Operating Instructions 01/2019
Drive
The motor speed is controlled using a converter. It has been optimized for operation with
SINAMICS low-voltage converters.
Other converters must comply with certain requirements: You can find more information in the
catalog or in the engineering documentation.
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.
Description
NOTICE
Destruction of the machine when operated directly from the line supply
The machine will be destroyed if it is directly connected to the line supply. Only operate the
machine using a converter.
Cooling
The cooling system is designed as a closed, internal cooling circuit. The mounted cooler is an
air-to-water heat exchanger with a pipe system. The heat lost from the machine is dissipated
via the surface of the cooling pipes to the cooling liquid flowing in the pipes. External fans
facilitate the circulation of the cooling air in the primary circuit.
Leakage-water sensor
The leakage-water sensor is fitted externally on the machine enclosure and provides additional
security in the event of leakage.
Degree of protection
The machine is available with degree of protection IP55.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 25
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
The standard version of the machine is not suitable for belt couplings. This can result in damage
to the machine.
Automatic regreasing system (option)
The roller bearings are optionally equipped with an automatic regreasing system. The roller
bearings are supplied with new grease portions by the regreasing system in parameterized
time intervals.
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.
SIMOTICS FD 1LN1
26 Operating Instructions 01/2019
Terminal box
Description
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.
Depending on the machine design, the following terminal boxes are generally used for
connecting the cables:
Terminal box Comment Application
GT640 Only for machines on the
power supply
1XB1621
1XB1631 2 × 1XB1631
1XB7730 Not for IEC explosion-proof versions
1XB7731 Not for IEC explosion-proof versions
1XB7740 2 × 1XB7740 Not for IEC explosion-proof versions
1XB7750
Not for explosion-proof versions
Depending on the terminal box and version, it is possible to rotate the terminal box through ±90°
in accordance with the connection direction. The implementation on the other motor side is
possible only with the support of the Service Center. If you wish to retrofit using a different
terminal box at a later date, please contact the Service Center (Page 171).
See also
Rotating the terminal box (Page 80)
Terminal box (Page 76)
Note
You can find more information in Chapter 2 of catalog D81.8.
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 FD 1LN1
Operating Instructions 01/2019 27
Description
SIMOTICS FD 1LN1
28 Operating Instructions 01/2019
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 Ensuring cooling
Ensure that the machine and/or any mounted external fan unit is sufficiently cooled by the
cooling air flow at the installation site:
● The cooling air can flow in and out freely. The full air flow provided by the fan is only achieved
if air can freely enter the impeller. Ensure that the required distance in accordance with the
dimensioned drawing is maintained.
● Hot discharged air must not be drawn in again.
● On the vertical design with air intake from above, the air inlets must be protected against the
ingress of foreign bodies and water.
See also
Connecting an external fan motor (Page 96)
SIMOTICS FD 1LN1
Operating Instructions 01/2019 29
$
Preparations for use
4.4 Space requirement
4.4 Space requirement
Maintain a clearance for the air intake where the machine is located (A). Plan sufficient space
on site for the machine so that the separately-driven fan can be removed and mounted again
as required. The necessary space requirements are listed in the following table:
Table 4-1 Space required for the separately-driven fan
Type Space required to ventilate the
separately-driven fan
1LN….-3A…-….
1MN….-3A…-….
1LN….-3B…-….
1MN….-3B…-….
1LN….-4A…-….
1MN….-4A…-….
1LN….-4B…-….
1MN….-4B…-….
50 mm 210 mm
50 mm 210 mm
80 mm 240 mm
80 mm 240 mm
Space required for removing/
mounting the separately-driven
fan
Ensure there is sufficient space where the machine is installed so that the water cooler can be
removed and installed again when necessary. The necessary space requirements are listed in
the following table:
Table 4-2 Space required for removing/installing the water cooler
Type Space requirement / clearance A
1LN….-3A…-….
1MN….-3A…-….
1LN….-3B…-….
1MN….-3B…-….
950 mm
1000 mm
SIMOTICS FD 1LN1
30 Operating Instructions 01/2019
$
4.5 Configuration of the cooling circuit and coolant supply
Type Space requirement / clearance A
1LN….-4A…-….
1MN….-4A…-….
1LN….-4B…-….
1MN….-4B…-….
1100 mm
1200 mm
Preparations for use
4.5 Configuration of the cooling circuit and coolant supply
4.5.1 Material selection for the cooling circuit
For optimum durability of the cooling system, use a closed or half open cooling circuit in
stainless steel or acrylic butadiene styrene (ABS).
Use either stainless steel or steel (S235JR) for the cooling circuit pipes and fittings.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 31
Preparations for use
4.5 Configuration of the cooling circuit and coolant supply
4.5.2 Pressures and differential pressures in the cooling circuit
The maximum permissible overpressure in the heat sink and thus in the cooling circuit can be
found on the air-to-water-cooler and in the associated operating instructions.
● If you are using a pump, which reaches more than this maximum pressure, then on the plant
or system side ensure that the maximum pressure is not exceeded.
● The lowest possible differential pressure between the coolant in the supply and return lines
should be selected to allow use of pumps with a flat characteristic.
Machine type Flow rate ± 10 %
[l/min]
1LN….-3A…-….
1MN….-3A…-….
1LN….-3B…-….
1LN….-4A…-….
1MN….-3B…-….
1MN….-4A…-….
1LN….-4B…-….
1MN….-4B…-….
115 0.3
150 0.3
200 0.3
● The pressure drop is dependent on the machine type. The machine type is stamped on the
rating plate.
● If there is a risk of frost, use cooling water with antifreeze suitable for this temperature.
The pressure drop increases when antifreeze is added.
4.5.3 Components and materials of the cooling circuit
The following table lists a wide variety of materials and components which can occur in a
cooling circuit or which are prohibited.
Pressure drop for fresh water
[bar]
Table 4-3 Materials and components of a cooling circuit
Material Component Remark
Zinc Pipes, valves and fit‐
tings
Brass Pipes, valves and fit‐
tings
Copper Pipes, valves and fit‐
tings
Steel (e.g. S235JR) Cable Can be used in closed cooling circuits with inhibitors or anti-freeze.
Cast steel, cast iron Pipes, motors Can be used in closed cooling circuits. Use sieves and return flush
High-alloy steel, Group 1
(V2A)
Pipes, valves and fit‐
tings
Do not use any components manufactured out of zinc.
Can be used in closed cooling circuits with inhibitor.
Can only be used in closed cooling circuits with inhibitor. Locate an
isolating element, e.g. connecting pipe of the devices, between the
heat sink and copper component.
Check for the formation of oxide; to do this, use a sight glass, for
example.
filter; for stainless steel cooling systems, use a Fe separator.
Can be used for drinking or municipal water with a chloride content
< 250 ppm.
SIMOTICS FD 1LN1
32 Operating Instructions 01/2019
Preparations for use
4.6 Coolant specification
Material Component Remark
High-alloy steel, Group 2
(V4A)
Installation employing differ‐
ent materials ("mixed instal‐
lation")
PVC Pipes, valves and fit‐
Hoses Reduce the use of hoses for connecting devices to a minimum. Do
Gaskets Pipes, valves and fit‐
Hose connections Transition from pipe to
Pipes, valves and fit‐
tings
Pipes, valves and fit‐
tings
tings, hoses
tings
hose
Can be used for drinking or municipal water with a chloride content
< 500 ppm.
Do not use a mixed installation.
Do not use any components manufactured out of PVC.
not use any hoses as main connecting line for the complete system.
Recommendation: EPDM hoses with an electrical resistance
> 109 Ω, e.g. "Semperflex FKD" supplied from Semperit or "DEMIT‐
TEL" from PE/EPD, supplied from the Telle company.
Use seals manufactured from fluorinated rubber in accordance with
DIN ISO 1629, AFM34, EPDM (recommended).
Fasten the hose connections with bracket clamps in accordance
with EN 14420.
4.5.4 Potential equalization on the cooling circuit components
● Connect an equipotential bonding conductor to all of the components in the cooling system
(motor, converter, piping system, etc.).
● Implement the equipotential bonding using a copper rail or finely stranded copper cable with
the appropriate cable cross-sections. In this way, you suppress electrochemical processes.
4.6 Coolant specification
4.6.1 General coolant requirements
The coolant must fulfill the following requirements over the long term. The coolant is based on
filtered drinking/municipal water of the quality specified below.
De-ionized water
Specific conductivity < 30 μS/cm
Evaporation residue < 20 mg/l
NOTICE
High percentage of chloride in drinking water
According to Directive 98/83/EC, drinking water may contain up to 250 mg/l of chloride. This
value is too high for the heat sinks, which may be destroyed if inhibitors are not added.
Use inhibitors if the drinking water has an excessively high chloride percentage.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 33
Preparations for use
4.6 Coolant specification
To better explain the coolant recommendations in this document, some of the problems that
can be encountered if the recommendations are ignored are listed in the table below.
Table 4-4 Substances that can destroy the cooling system
Coolant property or limit value vi‐
olation
Seawater Do not use seawater.
Water compliant with limit values Use inhibitors/antifreeze with the appropriate concentration. Locate
Entry of oxygen Use a closed cooling circuit. Locate a pressure relief valve in the
Chloride Use inhibitors/antifreeze with the appropriate concentration.
Sulfate Dilute the coolant using de-ionized water until the limit value is
Solids (e.g. sand) Flush the cooling circuit, without converter and motor. Use dirt fil‐
Total hardness Use inhibitors/antifreeze with the appropriate concentration.
Conductivity Connect an equipotential bonding conductor to all cooling circuit
Biological contamination Use biocides. Use dirt filtering equipment, e.g. sieves, fine filters.
Oil residue Use inhibitors/antifreeze with the appropriate concentration.
Mechanical contamination Flush the cooling circuit, without converter and motor. Use dirt fil‐
Inadequate equipotential bond‐
ing
Countermeasure
a pressure relief valve in the cooling circuit.
cooling circuit.
Use inhibitors/antifreeze with the appropriate concentration.
reached.
tering equipment, e.g. sieves, fine filters.
components.
Flush the cooling circuit, without converter and motor.
tering equipment, e.g. sieves, fine filters.
Connect an equipotential bonding conductor to all cooling circuit
components.
See also
Inhibitors, anti-freeze, biocides (Page 36)
NOTICE
Corrosion due to insufficient cooling water quality
The materials used in the cooler are selected to match the cooling water quality for which the
air-water cooler was ordered. The cooler cannot be simply used without taking any other
measures if other water conditions apply. If the cooling water quality is unsuitable, the air-towater heat exchanger may suffer corrosion and fail.
● The chemical composition of the cooling water must comply with the configuration
specifications.
● If the cooling water quality fails to satisfy the quality stated on the order, please contact the
Service Center.
● Please observe the recommended water quality in the operating instructions for the airwater cooler.
SIMOTICS FD 1LN1
34 Operating Instructions 01/2019
NOTICE
Overheating of the machine as a result of additives in the cooling water
Additives for antifreeze or corrosion protection can have a negative impact on the heat
transporting properties. The machine can overheat.
● Only operate the machine with the contractually agreed cooling water quality.
See also
Service and Support (Page 171)
4.6.2 Coolant specification
Fresh water / processed seawater / industrial water
pH value 6,5 ... 10
Chloride ions Cl
Sulfate ions SO
Sulfide ions S
Nitrate ions NO
3+
Iron Fe
Ferromanganese ion Fe3+Mn
Ammonia NH3, Ammonium NH
Dissolved solids < 340 mg/l
Carbon hardness < 0.9 mmol/l (5°dH)
Total hardness < 1.8 mmol/l (10°dH)
Electrical conductivity < 32000 μS/cm
Size of entrained particles (sand) < 0.1 mm
Biological growth resistant
-
2-
4
2-
+
3
Preparations for use
4.6 Coolant specification
< 3000 mg/l
< 3000 mg/l
< 1 mg/l
< 50 mg/l
< 1 mg/l
2+
+
4
< 50 mg/l
< 15 mg/l
°dH = German degree of hardness
See also
Inhibitors, anti-freeze, biocides (Page 36)
SIMOTICS FD 1LN1
Operating Instructions 01/2019 35
Preparations for use
4.6 Coolant specification
4.6.3 Inhibitors, anti-freeze, biocides
You can use the following anti-freeze, inhibitors and biocides in the stainless steel cooling
circuit:
Table 4-5 Overview and application of coolant additives
Anti-freeze used Please note the following in particular
Inhibitor without anti-
freeze effect
Anti-freeze protection
Biocide* Yes
Antifreeze + biocide* An Antifrogen N antifreeze concentration of >20 %
Not necessary Inhibitor, 0.2 ... 0.25 % by volume!
● Antifrogen N: 20 % < X ≤ 45 %
A 45 % concentration provides frost protection
down to -15 °C.
● Antifrogen L: 25 % < X ≤ 48 %
A 48 % concentration provides frost protection
down to -15 °C.
● Varidos FSK: 20 % < X ≤ 45 %
A 45 % concentration provides frost protection
down to -15 °C.
● Antifrogen N, minimum quantity 20 %
● Antifrogen L, minimum quantity 30 %
● Varidos FSK, minimum quantity 30 %
provides an adequate biocidal effect.
With Antifrogen L and Varidos FSK, 30 % is required
in order to achieve the same effect.
● With Antifrogen L, for the same
antifreeze protection, a higher
concentration is required then for
Antifrogen N
Cooling circuit with open pressurizer
* Effectiveness regarding the growth of microorganisms
Inhibitor without anti-freeze effect
If you use inhibitors without any antifreeze effect, then it is not permissible that there is any
magnesium carbonate in the cooling/water used.
Only use the NALCO TRAC100 inhibitor from the Nalco company in the ratio 0.2 % up to
0.25 %. Control Kits can be ordered from Nalco to check the inhibitor concentration.
Anti-freeze
All antifreeze agents contain corrosion protection inhibitors, which permanently protect the
cooling system against corrosion. You can use the additives listed above as anti-freeze agent:
NOTICE
Corrosive mixture
Top up with antifreeze to comply with the minimum concentration, otherwise a mixture is
obtained that has a corrosive effect. The cooling system can be damaged.
● Never mix inhibitors and anti-freeze.
SIMOTICS FD 1LN1
36 Operating Instructions 01/2019
Biocides
Preparations for use
4.6 Coolant specification
Closed cooling circuits with soft water (°dH > 4) are susceptible to microbes. The risk of
corrosion caused by microbes is virtually non-existent in chlorinated drinking water systems.
No strain of bacteria can survive when the appropriate quantity of anti-freeze is added. The
following microbes can occur:
● Bacteria that cause the formation of slime
● Corrosive bacteria
● Bacteria that cause deposits of iron
The type of bacteria determines the suitability of a biocide. At least one water analysis per
annum (to determine the number of bacterial colonies) is recommended. You can purchase
suitable biocides, for example from Nalco.
Note
Determining the appropriate biocide
The type of bacteria determines the biocide. Antifreeze already has a biocidal effect for the
minimum concentration specified above.
● The manufacturer's recommendations must be followed in regard to the dosage and
compatibility with any inhibitor that might be used.
● Never mix biocides and anti-freeze.
4.6.4 Cooling capacity derating
If you use antifreeze, then observe the cooling capacity derating factor, dependent on the
antifreeze concentration, as listed in the table.
Anti-freeze Concentration Cooling capacity derating factor
Antifrogen N
Varidos FSK
Antifrogen L
Antifrogen N / Varidos FSK ≙ ethylene glycol
Antifrogen L ≙ propylene glycol
Note
Order-specific agreements
Order-specific agreements regarding the cooling water specification can deviate from the
cooling water specification mentioned.
20% 0%
25% 0%
30% 0%
35% 2%
40% 4%
45% 5%
SIMOTICS FD 1LN1
Operating Instructions 01/2019 37
Preparations for use
4.7 Interlock circuit for the external fan motor
4.7 Interlock circuit for the external fan motor
Interlock circuit for the external fan motor
For machines with external fans, install an interlock circuit that prevents the main machine
being switched on if the external fan is not operational.
See also
Connecting an external fan motor (Page 96)
4.8 Thermal motor protection
The machine is equipped with measuring equipment for direct monitoring of the motor
temperature to protect the machine against overload during operation. Plan a corresponding
circuit for monitoring.
4.9 Thermal motor protection using PTC thermistors (option)
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.
4.10 Interlock circuit for the automatic regreasing system (option)
Relubrication is permitted only for a rotating shaft. Consequently, deploy an interlock circuit for
machines with automatic regreasing system to prevent them from operating at machine
standstill.
4.11 Interlock circuit for anti-condensation heating
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 machine has been switched off.
See also
Safety instructions for operation (Page 115)
SIMOTICS FD 1LN1
38 Operating Instructions 01/2019
4.12 IM B5 type of construction with support foot
4.12 IM B5 type of construction with support foot
● For machines, type of construction IM B5, provide an additional support foot at the NDE. The
support foot is not included in the scope of supply.
● Use an appropriately sized support foot with the appropriate rigidity. The support foot must
be able to support the total weight of the machine.
The weight of the machine is stated on the rating plate, data on geometry is shown in the
dimension drawing.
● There is a threaded hole M36 at the bottom of the machine where you can attach the support
foot.
WARNING
Danger if there is no support at the NDE
If the machine has no support at the NDE, the flange cannot hold the weight of the machine.
The machine or machine parts may loosen.
This can result in death, serious injury or material damage.
● Use an appropriately sized support base.
Preparations for use
4.13 Noise emissions
Noise emissions
During operation, the machine's noise emission levels can exceed those permitted at the
workplace, which can cause hearing damage.
● Ensure that nobody is in the area of increased noise emissions during machine operation.
● Take steps to reduce noise so that the machine can be operated safely within your system.
The following measures may help to reduce noise.
– Covers
– Noise insulation
– Hearing protection measures
4.14 Rotational speed limit values
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.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 39
Preparations for use
4.15 Voltage and frequency fluctuations during line operation
4.15 Voltage and frequency fluctuations during line operation
Unless otherwise stated on the rating plate, the permissible voltage/frequency fluctuation is
corresponds to Zone B in IEC / EN 60034‑1. Permissible fluctuations that go beyond this are
indicated on the rating plate.
Operate the machine in continuous operation in Zone A. Prolonged operation in Zone B is not
recommended:
● Exceeding the permissible tolerances for voltage and frequency can lead to an
impermissibly high temperature rise of the winding. This can result in long-term damage to
the winding.
● Limit exceptions of this sort 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. In this way you can avoid that the service life of the machine is reduced as a result
of thermal aging.
4.16 Phase synchronization during 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.
4.17 System-inherent frequencies
Excessively high vibration levels and system resonances can damage the machine set.
● Configure and match the system consisting of the foundation and machine set in such a way
that no system resonances can arise and result in the permissible vibration levels being
exceeded.
● The vibration values according to DIN ISO 10816-3 must not be exceeded.
4.18 Torsional load of the drive train
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.
SIMOTICS FD 1LN1
40 Operating Instructions 01/2019
WARNING
Torsional loadings of the shaft assembly
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
You can find more information in Chapter 2 of catalog D81.8.
4.19 Transport
Preparations for use
4.19 Transport
4.19.1 Safety instructions for transport
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions
● Comply with the applicable national and sector-specific regulations.
● When using the machine within the European Union, comply with the specifications laid
down in EN 50110‑1 regarding safe operation of electrical equipment.
The information required to correctly attach, lift and transport the machine - such as weight,
center of gravity and attachment points - is provided here:
● Machine dimension drawing and the associated explanations
● Transport data
● Rating plate and lifting plate, if available
● Shipping parts list
● Packaging
Danger when incorrectly lifting and transporting
Danger of death, serious injury, or substantial material damage caused by tipping or falling
transported goods. Comply with the following safety instructions:
● All work must be performed with due caution and care.
● Comply with any notes in the shipping papers.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 41
Preparations for use
4.19 Transport
● Carefully comply with all of the handling information and markings on the packages
whenever transporting and putting the equipment into storage according to ISO 780.
● Only use suitable and adequately dimensioned lifting equipment, transport equipment and
industrial trucks.
Danger due to incorrect attachment and lifting
● Ensure that suitable lifting equipment is available.
● Only hoist the goods using the designated hoisting points and/or at marked positions. The
attachment points are not dimensioned for additional loads.
● Use suitable strap guiding or spreading devices.
● If not specified otherwise in the transport data, always transport the machine in the position
associated with its specific type of construction.
Danger due to damaged attachment points
● Carefully check the attachment points provided on the machine, e.g. attachment eyes, lifting
lugs or ring bolts for possible damage. Replace any damaged attachment points.
● Before using, carefully ensure that the attachment points are correctly attached.
Bearing damage caused by vibration
Depending on the version, the machine is fitted with a rotor shipping brace. Not using the rotor
shipping brace can cause damage to the bearings if it is jolted or subject to vibration during
transport or storage.
● Always transport the machine with the rotor shipping brace mounted.
● Remove the rotor shipping brace at the latest possible time, e.g. just before attaching the
output elements or just before installing in the plant or system.
● If the customer already has mounted parts, such as a coupling or belt pulley, the bearings
can be damaged during transport. In this case, make sure that the customer uses a rotor
shipping brace.
● Protect the motor against strong radial shocks and vibration when storing, as the rotor
shipping brace cannot completely absorb these forces.
● Do not remove the rotor shipping brace until the machine is in a vertical position.
● If a machine has to be transported in a horizontal position, the rotor must be fixed in position
before the machine is turned onto its side. Vertical machines can be supplied in the
horizontal position from the manufacturing plant.
SIMOTICS FD 1LN1
42 Operating Instructions 01/2019
Danger if the machine falls
The attachment points on the machine are designed for the weight of the machine only. If a
machine set is lifted and transported at a single machine, this can fracture the attachment point.
The machine or machine set may fall. This can result in death, serious injury or material
damage.
● Do not lift machine sets by attaching lifting tackle to the individual machines.
● Use only the equipment provided, e.g. the openings or lugs on the base plates, for
transporting machine sets. Note the maximum capacity of the lifting lug.
Danger when attachment points fracture
At low temperatures, the material of the attachment points can become brittle. When lifting and
transporting, the attachment points can shear off and the motor can fall.
This can result in death, serious injury, or material damage.
● Only lift the machine using the attachment points at temperatures that are not below -20 °C.
Preparations for use
4.19 Transport
● Heat up the attachment points properly beforehand.
4.19.2 Checking the delivery
The components are assembled on an individual basis. When you take receipt of the delivery,
please check immediately whether the scope of the delivery matches up with the
accompanying documents. No claims relating to defects/items missing from the delivery will be
accepted if they are submitted at a later date.
● Report any apparent transport damage to the delivery agent immediately.
● Immediately report any apparent defects/missing components to your contact partner.
These Operating Instructions are part of the scope of delivery; keep them in a location where
they can be easily accessed.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 43
Preparations for use
4.19 Transport
4.19.3 Securing the rotor
Depending on the version, the machine is fitted with a rotor shipping brace. This protects the
bearings against damage due to shock and vibration during transport or storage.
NOTICE
Vibration and shock during transport
Not using the rotor shipping brace can cause damage to the machine if it is jolted during
transport. Material damage can result.
● If the machine is fitted with a rotor shipping brace, this should always be used when
transporting the machine. The rotor shipping brace must be attached during the transport.
● Only remove it before pulling on the output element.
● For machines with a vertical type of construction:
– Do not remove the rotor shipping brace until the machine is in a vertical position.
– If a machine has to be transported in a horizontal position, the rotor must be fixed in
position before the machine is turned onto its side. Vertical machines can be supplied
in the horizontal position from the manufacturing plant.
SIMOTICS FD 1LN1
44 Operating Instructions 01/2019
Alternative rotor bracing
ཱ
● If you transport the machine after the output element has been pulled on, then you must
axially fix the rotor in another way.
① Sleeve ② Shaft screw and washer
Figure 4-1 Axial fastening of the rotor
Thread in the shaft extension Tightening torque
M20 80 Nm
M24 150 Nm
M30 230 Nm
Preparations for use
4.19 Transport
Tightening torques for other rotor shipping brace types
● The thread in the shaft extension indicates the rotor weight. This indirectly specifies the
required preload force when axially fastening the rotor.
Thread in the shaft extension Preload
M20 20 kN
M24 30 kN
M30 40 kN
Axial preload force for other rotor shipping brace types
Note
Store the rotor locking device
Be sure to store the rotor locking device. It must be remounted for possible disassembly and
transport.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 45
Preparations for use
4.20 Storage
4.19.4 Lifting and transporting the machine
● If adapter flange and adapter plates are also supplied, then lift them and transport these
parts separately. The load suspension equipment for the motor is not rated for lifting the
motor with mounted adapter flange is or adapter plates
● When lifting the machine, refer to the information on the lifting plate or in the technical data:
– Comply with the specified spreading angles.
– Do not exceed the maximum lifting acceleration and lifting speed specified on the lifting
plate. Lift the machine without jerking it.
Acceleration a ≤ 0.4 g (≈ 4 m/s2)
Velocity v ≤ 20 m/min
● Use only the attachment points (eyebolts) that are attached to the stator frame or the
bearing shield.
Note
Place the machine in a secure and raised position
In order to obtain easy and safe access to the underside of the machine, place it in a secure and
raised position.
DANGER
Standing under suspended loads
If the lifting gear or load handling attachments were to fail, the machine could fall. This can
result in death, serious injury or material damage.
● Never remain under or in the immediate vicinity of the machine when it is raised.
4.20 Storage
4.20.1 Storing the machine
You must correctly store the machine if you do not install and use it after it has been delivered.
NOTICE
Bearing seizure damage if incorrectly stored
If storage conditions are inappropriate there is a risk of bearing seizure damage. Resulting
damage can include scoring (brinelling) and corrosion.
● Follow the storage guidelines.
SIMOTICS FD 1LN1
46 Operating Instructions 01/2019
Preconditions and preparations
● Only store goods in undamaged packaging. Unpack the goods if the packaging is damaged.
Correctly store the goods corresponding to the type.
● Repair any damage to the packaging before putting the equipment into storage insofar as
this is necessary to ensure proper storage conditions.
General instructions for storage
Wherever possible, store the machine in a storage room. The place of storage must satisfy the
following general conditions:
● Select a sufficiently sized dry and horizontal place of storage that is above flood level and
free of vibration (v
– The place of storage must be well ventilated as well as free of dust and frost. Provide
protection against extreme weather conditions. Ensure that the temperature remains
stable in the range from 10 °C to 50 °C – or 50 °F to 120 °F. If there is a risk of
condensation, the room temperature should be approx. 10 K above the outside
temperature. The temperature should not fall below ‑20° C.
– The relative humidity of the air should be less than 60%.
≤ 0.2 mm/s).
eff
Preparations for use
4.20 Storage
Storing outdoors
– The floor of the place of storage must be sufficiently strong. The maximum permissible
floor loading or storage compartment loading may not be exceeded.
– The ambient air must not contain any harmful gases.
● Protect the machine from shocks and humidity.
● Position machines, devices and crates on pallets, wooden beams or foundations that
protect them against rising damp and water.
● Ensure that the air circulation under the equipment is not impeded.
– Place wooden spacer blocks between the covers and the machine.
– Covers or tarpaulins must not trail on the floor around the machine.
When storing the machines outside, the storage location must comply with the following
conditions:
● The ground must be sufficiently strong. Prevent the machine from sinking into the ground.
● Covers or tarpaulins used to protect the equipment against the weather must not make
contact with the surfaces of the equipment. Otherwise air circulation under the stored items
will be prevented.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 47
Preparations for use
4.20 Storage
Protection against humidity
If a dry storage space is not available, protect the machine as follows against humidity:
● Wrap the machine in humidity-absorbent material.
● Wrap the machine in plastic film:
– Place a humidity meter inside the plastic film.
– Place desiccant within the plastic film.
– Pack the machine air-tight.
● Inspect the machine regularly.
NOTICE
Improper storage or transport
Damage to bearings can result from improper storage or transport.
● On machines that have been supplied with a rotor shipping brace, secure the rotor as per
the notes on transportation (Page 44).
● Protect the motor against strong radial shocks and vibration when storing, as the rotor
shipping brace cannot completely absorb these forces.
● If the customer has already mounted parts, such as a coupling or belt pulley, the bearings
can be damaged during transport. In this case, make sure that the customer uses a rotor
locking device.
Long-term storage
If you are storing a machine for more than six months, you must check its condition every six
months. Store the machine in accordance with the specifications in Section "Storage
(Page 46)", and if possible, packed.
● Check the motor for damage.
● Carry out any necessary maintenance work.
● Make sure that the storage conditions are such that condensation cannot form in the motor.
● If the machine is not sealed in plastic film, continually and slightly heat the machine, e.g. with
anti-condensation heating (if available), and ensure that the air circulates in the storage
room.
Storage for longer than three months
Lubricate the machine after every two years of storage.
1. Unpack the machine.
2. Remove the rotor shipping brace, if one is being used.
SIMOTICS FD 1LN1
48 Operating Instructions 01/2019
3. When stored for longer than two years, lubricate with twice the grease quantity in
accordance with the lubricant plate. This ensures that the grease is evenly distributed and
covers all surfaces. Corrosion damage is avoided.
NOTICE
Damage to roller bearings
Roller bearings can be damaged when kept in the same or almost the same position.
Every three months, manually rotate the rotor through five revolutions. Make sure that the
resting position of the roller bearings after the rotor has been turned is different from what
it previously had been. Use the feather key as a reference point, if present.
4. Replace the corrosion protection.
5. Reattach the rotor shipping brace, if present.
6. Pack the machine again.
4.20.2 Protecting the cooling water circuit during storage
Preparations for use
4.20 Storage
Anti-freeze protection
When supplied, the machine is not filled with cooling water, so that there is no risk of frost
damage.
Protecting the cooling circuit against corrosion
You protect the cooling circuit against corrosion when the machine has already been in
operation and is then placed in storage or put out of operation. Also observe the information in
the operating instructions supplied by the manufacturer of the cooler.
1. Completely drain the cooling ducts. To be completely certain, use compressed air to clean
the cooling water ducts so that they are completely empty.
2. Flush the cooling water ducts with a corrosion-protection emulsion to avoid the buildup of
rust.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 49
Preparations for use
4.21 Converter operation
4.20.3 Protection against corrosion
If the machine is stored in dry conditions, then apply the subsequently listed anti-corrosion
measures:
● Storage up to six months:
Apply a coat of corrosion protective compound to all accessible bare metal parts such as the
exposed shaft extension, flange or machine feet.
● Storage for longer than six months:
Apply a coat of long-term anti-corrosion agent to all accessible bare parts.
● Inspect the machine regularly and if necessary, apply an additional coating of corrosion
protection.
Document all preservation measures taken so that they can be reversed before the machines
are put back into service.
4.21 Converter operation
The following chapter is relevant only if the machine has been ordered for converter operation.
Note
The order number shows whether the machine was ordered for converter operation. In this
case, digits 1, 2, 3 or 4 is located at the 6th position of the order number.
4.21.1 Supply line configuration
NOTICE
Asymmetric voltage load during operation on a TN system in delta connection
An asymmetric voltage load of the machine winding can occur during operation on a TN
system in delta connection with a grounded line conductor. Winding damage can result.
● Do not operate the machine on a TN system with a grounded line conductor.
NOTICE
Ground fault during operation on an IT system
If a ground fault occurs when connected to an IT supply system, the insulation is excessively
stressed. Winding damage can result.
● If possible, complete the process within two hours.
● Rectify the fault cause.
● Deploy a ground fault monitoring.
SIMOTICS FD 1LN1
50 Operating Instructions 01/2019
4.21.2 Converter input voltage
The insulation system of SIMOTICS machines always complies with the requirements of stress
category C (IVIC C = high stress). If voltage peaks higher than those specified according to
IVIC C can occur, then please contact your Siemens partner:
● For a line supply voltage (converter input voltage) up to max. 480 V, and when controlled
from a SINAMICS G/SINAMICS S converter with uncontrolled/controlled infeed: Comply
with the guidelines for configuring motor and converter.
● For line voltages (converter input voltages) higher than 480 V, motors, which are ordered for
converter operation, have an appropriate insulation system.
● Operation with a converter from another manufacturer: Comply with the permissible voltage
peaks according to IEC 60034-18-41 in accordance with stress category C, dependent on
the particular line voltage (converter input voltage) and the motor insulation system.
NOTICE
Material damage caused by an excessively high supply voltage
The insulation system will be damaged if the supply voltage is too high for the insulation
system. This can completely destroy the machine.
● Comply with the peak voltages as laid down in the guidelines above.
Preparations for use
4.21 Converter operation
4.21.3 Reducing bearing currents
Taking the following actions will reduce the bearing currents:
● Ensure that the contacts are established over a large area. Solid copper cables are not
suitable for high frequency grounding because of the skin effect.
Equipotential bonding conductors:
Use equipotential bonding conductors:
● Between motor and driven machine
● Between motor and converter
● Between the terminal box and the RF grounding point at the motor enclosure.
Selecting and connecting the cable:
As far as possible, use symmetrically arranged, shielded connection cables. The cable
shielding, made up of as many strands as possible, must have good electrical conductivity.
Braided shields made of copper or aluminum are very suitable.
● The shield is connected at both ends, at the motor and converter.
● To ensure good discharging of high-frequency currents, provide contacting over a large
surface area:
– as contact established through 360° at the converter
– at the motor, for instance with EMC glands at the cable entries
SIMOTICS FD 1LN1
Operating Instructions 01/2019 51
/
3(
3(
3(
/
//
//
3(
/
/
/
Preparations for use
4.21 Converter operation
● If the cable shield is connected as described, then it ensures the specified equipotential
bonding between the motor enclosure and converter. A separate RF equipotential bonding
conductor is then not necessary.
● If the cable shield is not connected due to special secondary conditions, or not adequately
connected, then the specified equipotential bonding is not provided. In this particular case,
use a separate RF equipotential bonding conductor:
– Between the motor enclosure and protective ground rail of the converter.
– Between motor enclosure and driven machine
– Use braided flat copper straps or high-frequency cables with finely-stranded conductors
Concentric copper or aluminum shield Steel armor
for the separate RF equipotential bonding cable.
– Ensure that the contacts are established over a large area.
Overall system design
To specifically reduce bearing currents, you must consider the system as a whole, which
comprises the motor, converter, and driven machine. The following measures support you
when reducing bearing currents and help to avoid damage:
● In the overall system, set up a properly meshed grounding system with low impedance.
● Use the common-mode filter (damping cores) at the converter output. The Siemens sales
representative is responsible for selection and dimensioning.
● Limit the rise in voltage by using output filters. Output filters dampen the harmonic content
in the output voltage.
Note
Converter documentation
The operating instructions for the converter are not part of this documentation. Refer also to the
configuration information for the converter.
4.21.4 Insulated bearings when operating the converter
52 Operating Instructions 01/2019
If the machine is operated from a low-voltage converter, insulated bearings are fitted at the NDE
and an insulated encoder with insulated bearings (option).
Comply with the plates on the machine relating to bearing insulation and possible bridges.
SIMOTICS FD 1LN1
Preparations for use
4.21 Converter operation
① Driving machine ④ Insulated bearings
② Motor ⑤ Insulated tachometer fitting
③ Coupling
Figure 4-2 Schematic representation of a single drive
NOTICE
Bearing damage
The bearing insulation must not be bridged. Bearing currents can damage bearings.
● Do not bridge the bearing insulation for subsequent installation work, such as the
installation of an automatic lubrication system or a non-insulated vibration sensor.
● Please contact the service center if necessary.
Tandem operation
If you connect two motors in series in "tandem operation", install an insulated coupling between
the motors.
① Driving machine ④ Insulated bearings
② Motor ⑤ Insulated tachometer fitting
③ Coupling ⑥ Insulated coupling
Figure 4-3 Schematic representation of a tandem drive
NOTICE
Bearing damage
Bearing currents can flow if the coupling between the motors of the tandem drive is not
insulated. This can damage the DE bearings of both motors.
● Use an insulated coupling to link the motors.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 53
Preparations for use
4.21 Converter operation
See also
Service and Support (Page 171)
4.21.5 Converter operation on a grounded network
NOTICE
Damage resulting from protective conductor currents
When the machine is operated with a converter with current limiting, but without ground-fault
monitoring, protective conductor currents of up to 1.7 times the phase conductor current can
flow if there is a ground fault on the output side. Neither the PE conductors of normally rated
multi-conductor connecting cables nor the PE connecting points of standard terminal boxes is
suitable for this purpose. Material damage can result.
● Use an appropriately sized PE conductor.
● Connect the PE conductor to the grounding terminal on the motor enclosure.
SIMOTICS FD 1LN1
54 Operating Instructions 01/2019
Assembly
5.1 Safety instructions for mounting
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions
● Comply with the applicable national and sector-specific regulations.
● When using the machine within the European Union, comply with the specifications laid
down in EN 50110‑1 regarding safe operation of electrical equipment.
See also
Safety information (Page 15)
Injury and material damage caused by inappropriate fastening material
If screws of an incorrect property class have been selected or if they have been fastened to an
incorrect tightening torque, they may break or become loose. This will cause the machine to
move, which could damage the bearings. The rotor could smash into the machine enclosure
and machine parts could be flung out of place. This can result in death, serious injury or material
damage.
5
● Comply with the required property classes for screwed connections.
● Tighten the screwed connections to the specified tightening torques.
Injury and material damage caused by incorrect machine alignment
If the machine has not been properly aligned, this will mean the fastening parts are subjected
to stress/distortion. Screws may become loose or break, the machine will move, machine parts
could be flung out of place. This can result in death, serious injury or material damage.
● Carefully align the machine to the driven machine.
Material damage caused by improper handling
Mounting parts such as temperature sensors or speed sensors are attached to the machine
and could be ripped off or destroyed as a result of improper handling. This could lead to
machine malfunctions, extending even to total loss of the machine.
● Where necessary, use suitable steps when performing installation work on the machine.
● Do not stand on cables or attachments during installation. Do not use attachments as steps.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 55
Assembly
5.2 Preparations for installation
Damage to mounted parts and components as a result of high temperatures
The motor components get very hot during operation. High temperatures can damage parts
mounted by customers, such as cables manufactured out of materials that are not heat
resistant.
● Temperature-sensitive parts must not come into contact with or be attached to components
mounted on the machine.
● Only use heat-resistant mounting parts. The connecting cables and cable entries must be
suitable for the particular application.
Loss of conformity with European directives
In the delivery state, the machine corresponds to the requirements of the European directives.
Unauthorized changes or modifications to the machine lead to the loss of conformity with
European Directives and the loss of the associated warranty.
5.2 Preparations for installation
5.2.1 Requirements for installation
The following requirements must be satisfied prior to starting installation work:
● Staff have access to the operating and installation instructions.
● The machine is unpacked and ready for mounting at the installation location.
● Measure the insulation resistance of the winding before starting any installation work. If the
insulation resistance lies below the specified value, take appropriate remedial measures.
These remedial measures may necessitate the machine being removed again and
transported.
5.2.2 Insulation resistance and polarization index
Measuring the insulation resistance and polarization index (PI) provides information on the
condition of the machine. It is therefore important to check the insulation resistance and the
polarization index at the following times:
● Before starting up a machine for the first time
● After an extended period in storage or downtime
● Within the scope of maintenance work
The following information is provided regarding the state of the winding insulation:
● Is the winding head insulation conductively contaminated?
● Has the winding insulation absorbed moisture?
SIMOTICS FD 1LN1
56 Operating Instructions 01/2019
As such, you can determine whether the machine needs commissioning or any necessary
measures such as cleaning and/or drying the winding:
● Can the machine be put into operation?
● Must the windings be cleaned or dried?
Detailed information on testing and the limit values can be found here:
"Testing the insulation resistance and polarization index" (Page 57)
5.2.3 Testing the insulation resistance and polarization index
WARNING
Hazardous voltage at the terminals
During and immediately after measuring the insulation resistance or the polarization index (PI)
of the stator winding, hazardous voltages may be present at some of the terminals. Contact
with these can result in death, serious injury or material damage.
● If any power cables are connected, check to make sure line supply voltage cannot be
delivered.
● Discharge the winding after measurement until the risk is eliminated, e.g. using the
following measures:
– Connect the terminals with the ground potential until the recharge voltage drops to a
non-hazardous level
– Attach the connection cable.
Assembly
5.2 Preparations for installation
Measure the insulation resistance
1. Before you begin measuring the insulation resistance, please read the operating manual for
the insulation resistance meter you are going to use.
2. Short-circuit the ends of the temperature sensor cables before applying the test voltage. If
the test voltage is connected to only one temperature sensor terminal, the temperature
sensor will be destroyed.
3. Make sure that no power cables are connected.
4. Measure the winding temperature and the insulation resistance of the winding in relation to
the machine enclosure. The winding temperature should not exceed 40° C during the
measurement. Convert the measured insulation resistances in accordance with the formula
to the reference temperature of 40° C. This thereby ensures that the minimum values
specified can be compared.
5. Read out the insulation resistance one minute after applying the measuring voltage.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 57
Assembly
5.2 Preparations for installation
Limit values for the stator winding insulation resistance
The following table specifies the measuring voltage and limit values for the insulation
resistance. These values correspond to IEEE 43‑2000 recommendations.
Table 5-1 Stator winding insulation resistance at 40° C
U
N
V
U ≤ 1000 500 ≥ 5
1000 ≤ U ≤ 2500 500 (max. 1000) 100
2500 < U ≤ 5000 1000 (max. 2500)
5000 < U ≤ 12000 2500 (max. 5000)
U > 12000 5000 (max. 10000)
U
= rated voltage, see the rating plate
rated
U
= DC measuring voltage
meas
R
= minimum insulation resistance at a reference temperature of 40 °C
C
Conversion to the reference temperature
When measuring with winding temperatures other than 40° C, convert the measuring value to
the reference temperature of 40° C according to the following equations from IEEE 43-2000.
(1)
R
=
K
·
T
(40-T)/10
R
T
(2)
C
K
= (0.5)
T
U
meas
V
R
Insulation resistance converted to 40° C reference temperature
C
K
Temperature coefficient according to equation (2)
T
R
Measured insulation resistance for measuring/winding temperature T
T
in °C
40 Reference temperature in °C
10 Halving/doubling of the insulation resistance with 10 K
T
Measuring/winding temperature in °C
R
MΩ
C
In this case, doubling or halving the insulation resistance at a temperature change of 10 K is
used as the basis.
● The insulation resistance halves every time the temperature rises by 10 K.
● The resistance doubles every time the temperature falls by 10 K.
SIMOTICS FD 1LN1
58 Operating Instructions 01/2019
For a winding temperature of approx. 25° C, the minimum insulation resistances are 20 MΩ
(U ≤ 1000 V) or 300 MΩ (U > 1000 V). The values apply for the complete winding to ground.
Twice the minimum values apply to the measurement of individual assemblies.
● Dry, new windings have an insulation resistance of between 100 and 2000 MΩ, or possibly
even higher values. An insulation resistance value close to the minimum value could be due
to moisture and/or dirt accumulation. The size of the winding, the rated voltage and other
characteristics affect the insulation resistance and may need to be taken into account when
determining measures.
● Over its operating lifetime, the motor winding insulation resistance can drop due to ambient
and operational influences. Calculate the critical insulation resistance value depending on
the rated voltage by multiplying the rated voltage (kV) by the specific critical resistance
value. Convert the value for the current winding temperature at the time of measurement,
see above table.
Measuring the polarization index
1. To determine the polarization index, measure the insulation resistances after one minute
and ten minutes.
2. Express the measured values as a ratio:
PI =
R
insul 10 min
Many measuring devices display these values automatically following the measurement.
/
R
insul 1 min
Assembly
5.2 Preparations for installation
For insulation resistances > 5000 MΩ, the measurement of the PI is no longer meaningful and
consequently not included in the assessment.
R
/ R
(10 min)
(1 min)
≥ 2 Insulation in good condition
< 2 Dependent on the complete diagnosis of the insulation
NOTICE
Damage to insulation
If the critical insulation resistance is reached or undershot, this can damage the insulation and
cause voltage flashovers.
● Contact the service center (Page 171).
● If the measured value is close to the critical value, you must subsequently check the
insulation resistance at shorter intervals.
Limit values of the anti-condensation heating insulation resistance
The insulation resistance of the anti-condensation heating with respect to the machine housing
should not be lower than 1 MΩ when measured at 500 V DC.
Assessment
SIMOTICS FD 1LN1
Operating Instructions 01/2019 59
Assembly
5.3 Lift the machine to where it will be installed, and position it
5.2.4 Prepare the mating faces (IM B3)
● Ensure that the foundation faces are flat and free of contaminations.
Note
Shims
To establish a defined mounting surface, you can order shims (option L31) from our Service
Center.
● Check the dimensions of the mounting-foot holes.
See also
Service and Support (Page 171)
5.2.5 Prepare the mating face for a flange connection
● Clean the flange before installation, and make sure that the flange face is flat and free of
contaminations.
● Check the geometry of the flange.
5.2.6 Prepare the mating face for wall mounting
● Ensure that the wall surface is flat and free of contaminations.
● Check the dimensions of the mounting-foot holes.
● Support the machine from below, e.g. using a wall bracket or by bolting it.
5.3 Lift the machine to where it will be installed, and position it
5.3.1 Preconditions for correct alignment and secure attachment
Detailed specialist knowledge of the following measures is required in order to correctly align
and securely fit the equipment.
● Preparing the foundation
● Selecting and mounting the coupling
● Measuring the concentricity and axial eccentricity tolerances
● Positioning the machine
If you are not familiar with the prescribed measures and procedures, then you can make use of
the services offered by the local Service Center (Page 171).
SIMOTICS FD 1LN1
60 Operating Instructions 01/2019
5.3 Lift the machine to where it will be installed, and position it
5.3.2 Checking the load handling attachments
Inspect the load handling attachments such as the load trestles, lifting eyes and ring bolts and
also the lifting gear, before lifting the machine:
● Inspect the load handling attachments on the machine for possible damage. Replace any
load suspension equipment that is found to be damaged.
● Before use, check that the load suspension equipment is correctly attached.
● When lifting the machine, use only approved and undamaged lifting gear of sufficient rated
capacity. Check the lifting gear prior to its use.
WARNING
The machine can be dropped
If the load handling attachments and lifting gear are damaged or not correctly secured, the
machine may be dropped during lifting. This can result in death, serious injury or material
damage.
● Inspect the load handling attachments and lifting gear before use.
Assembly
5.3.3 Removing the rotor shipping brace
If a rotor shipping brace is attached to the machine, remove it at the last possible moment,
for example, when you are ready to push on the output or drive element.
5.3.4 Removing the rotor shipping brace from machines in vertical type
NOTICE
Removing the rotor shipping brace in the horizontal position.
Dismantling the rotor shipping brace when the machine is in a horizontal position could
damage the bearings.
● Only remove the rotor shipping brace when the machine is in a vertical position.
NOTICE
Turning the motor over without rotor shipping brace
Failure to fit the rotor shipping brace can result in damage to the bearings while the machine
is being turned onto its side.
● Fix the rotor in place before you turn the machine into a horizontal position.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 61
Assembly
5.3 Lift the machine to where it will be installed, and position it
Note
Store the rotor locking device
Be sure to store the rotor locking device. It must be remounted for possible disassembly and
transport.
5.3.5 Removing anti-corrosion protection
Machined, bare metallic surfaces of the motor, such as the shaft end, fitted key, foot and flange
surfaces, are treated with an anti-corrosion agent.
1. Remove this layer of anti-corrosion agent from the mounting surfaces of the motor by wiping
it away with an absorbent cloth or paper sheet.
NOTICE
Damage to the machine surface
Using metal objects such as scrapers, spatulas, or plates to remove the anti-corrosion
protection could result in damage to the surfaces of the machine parts.
2. Then lightly oil the bare surfaces again.
5.3.6 Mounting the output elements
Type of balancing
The rotor is dynamically balanced. For shaft extensions with featherkeys, the balancing type is
specified using the following coding on the face of the drive end of the shaft:
● "H" means balancing with a half feather key
● "F" means balancing with a whole feather key
Figure 5-1 Balancing type on the drive-end side
SIMOTICS FD 1LN1
62 Operating Instructions 01/2019
Pushing on the power output elements
● Requirements:
– The coupling and/or the output element must be appropriately dimensioned for the
operating case at hand.
Carefully comply with the coupling manufacturer's instructions.
– Make sure that the balancing type of the transmission element correctly matches the
type of balance of the rotor.
– Use only ready drilled and balanced transmission elements. Check the hole diameters
and the balancing status before pulling them on. Thoroughly clean the shaft extension.
● Pulling on:
– Warm up the transmission elements to expand them before pulling them on. Select the
temperature difference for the heating process to suit the coupling diameter, fit and
material. Carefully comply with the coupling manufacturer's instructions.
– Power output elements may only be pushed on or pulled off with the correct equipment.
The transmission element must be pulled on in one continuous operation via the front
thread holes in the shaft or pushed on by hand.
– Do not strike it with a hammer, as this would damage the bearings.
Assembly
5.3 Lift the machine to where it will be installed, and position it
Shaft extensions with feather key
To maintain the balancing quality, you have the following options:
● If the transmission element is shorter than the feather key with balancing type "H", then you
must machine off the section of feather key protruding from the shaft contour and
transmission element in order to maintain the balance quality.
● If the transmission element is drawn up on to the shoulder of the shaft, you must ensure that
the part of the coupling groove where the feather key is not inserted is taken into
consideration when balancing the coupling.
The following applies to all four-pole machines with a frequency ≥ 60 Hz:
● The feather key must be shortened if the coupling hub us shorter than the feather key.
● The center of gravity of the coupling half should be within the length of the shaft end.
● The coupling used must be prepared for system balancing.
The number of poles of the machine is specified on the rating plate, at the 10th position of
the motor type. There, four-pole machines are marked with a "B".
Danger when feather keys are flung out
The feather key is only secured to prevent it falling out during transport. The feather key may
be flung out if the motor is operated without fitted transmission elements, such as coupling, etc.
This can result in death, serious injury or material damage.
● Only operate the motor with the transmission element pulled on.
● For test operation or when commissioning without transmission element, carefully secure
the feather key using a suitable locking element. When doing this, take into account the type
of machine balancing.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 63
Assembly
5.3 Lift the machine to where it will be installed, and position it
5.3.7 Lifting and transportation
To safely lift and transport the machine, the following requirements must be met:
● Personnel operating cranes and fork-lift trucks must be appropriately qualified.
● If the machine is packed, depending on the weight, size and on-site conditions, lift crates
and transport frames using a fork-lift truck or a crane with slings. Use a crane or fork-lift truck
suitable for the load.
● When lifting the machine, use only approved and undamaged sling guides and spreaders
of sufficient rated capacity. Check the lifting equipment prior to its use. The weight of the
machine is shown on the rating plate.
● When lifting the machine, refer to the information on the lifting plate.
– Comply with the specified spreading angles.
– Do not exceed the maximum lifting acceleration and lifting speed specified on the lifting
plate. Lift the machine without jerking it.
Acceleration a ≤ 0.4 g (≈ 4 m/s2 )
Velocity v ≤ 20 m/min
WARNING
Transport for a different type of construction
If you do not transport or lift the machine in a position appropriate for its construction, the
machine can tip, slip into the lifting equipment or fall down. This can result in death, serious
injury or material damage.
● Use only the load carrying device on the stator frame for lifting.
● Use the load carrying device appropriate for the machine position.
● Only use suitable rope guiding or spreading devices.
WARNING
Center of gravity not centered
If the center of gravity of a load is not located centrally between the attachment points, the
machine can tip over or slip out of the lifting equipment and fall when it is being transported or
lifted. This can result in death, serious injury or material damage.
● Comply with the handling instructions on the machine when transporting it.
● Be aware of the possibility of different loads on the sling ropes or lifting straps and the
carrying capacity of the lifting equipment.
● Always take account of the center of gravity when transporting or lifting the machine. If the
center of gravity is not located centrally between the attachment points, then position the
hoisting hook above the center of gravity.
SIMOTICS FD 1LN1
64 Operating Instructions 01/2019
Note
Place the machine in a secure and raised position
In order to obtain easy and safe access to the underside of the machine, place it in a secure and
raised position.
DANGER
Standing under suspended loads
If the lifting gear or load handling attachments were to fail, the machine could fall. This can
result in death, serious injury or material damage.
● Never remain under or in the immediate vicinity of the machine when it is raised.
5.3.8 Putting the machine down
Assembly
5.3 Lift the machine to where it will be installed, and position it
Requirements
The following preconditions must be satisfied before setting down the machine at the
installation location:
● The mating faces must be clean.
● The anti-corrosion protection paint has been removed from the mating faces, such as the
machine mounting feet, flange, ...
● There is no condensation present within the machine.
Setting down the machine
● Set down the machine slowly and carefully at the installation location to avoid any impact.
See also
Draining condensation (Page 66)
SIMOTICS FD 1LN1
Operating Instructions 01/2019 65
Assembly
5.3 Lift the machine to where it will be installed, and position it
5.3.9 Draining condensation
Under the following conditions it is possible that condensate may accumulate within the
machine:
● Wide fluctuations in the ambient temperature, such as direct sunshine combined with high
atmospheric humidity
● Intermittent operation or load fluctuations during operation
NOTICE
Damage due to condensate
If the stator winding is damp, its insulation resistance will be reduced. This can result in
voltage flashovers, which can destroy the winding. Condensate can also cause rust to form
within the machine.
Ensure that condensate can drain away.
Depending on the type of installation, the water drainage holes are located at the bottom:
Allow the condensation water to discharge for vertical placement
In the DE bearing shield, water drain holes are located in the area of the mounting feet or
opposite the regreasing system. They are sealed with screw plugs.
Figure 5-2 Condensation water drain for vertical mounting
SIMOTICS FD 1LN1
66 Operating Instructions 01/2019
5.3 Lift the machine to where it will be installed, and position it
Allow the condensation water to discharge for horizontal placement
The water drain holes are located in the lower side of the stator enclosure, and sealed with
screw plugs.
Assembly
Figure 5-3 Condensation water drain for horizontal mounting
To drain the condensation water, proceed as follows:
1. Remove the screw plugs to allow the condensation water to drain.
2. Then reinsert the screw plugs.
NOTICE
The degree of protection is reduced
Nominally the degree of protection of the machine is reduced to IP44 when the screw plug is
removed.
5.3.10 Roughly aligning the machine
Requirement
The transmission element such as a coupling half has already been pulled on.
Roughly aligning the machine
● For horizontal positioning, push the motor sideways across the foundation. When doing so,
ensure that the axial position is maintained.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 67
Assembly
5.4 Installing the machine
5.4 Installing the machine
5.4.1 Preconditions for smooth, vibration-free operation
Preconditions for smooth, vibration-free operation:
● Stable foundation design
● Precise alignment of the machine
● Correct balancing of parts to be fitted to the shaft end.
● Maintaining the vibration velocity according to ISO 10816‑3
5.4.2 Aligning the machine to the driven machine and mounting (IM B3 / IM B35)
1. Refer to any instructions for aligning the driven machine and those of the coupling
manufacturer.
2. Align the machines with coupling output to the driven machine in such a manner that the
center lines of the shafts at the operating temperature do not have any parallel or angular
offset. This ensures that no additional forces affect their bearings during operation.
If the thermal change of the motor and the driven machine is different, couple in the cold
state with an appropriate alignment offset. The alignment offset to be set in the cold state
must be determined and specified by the system specialist.
3. For the vertical positioning (x→0), place thin shims over a large surface area under the
machine feet. The number of shims should be kept as low as possible, i.e. stack as few as
possible. This also prevents the machine being subjected to any stress/distortion. Use the
existing tapped holes for the forcing-off bolts to raise the machine.
The balance state of the shaft (full-key or half-key balancing) and alignment errors primarily
influence the service life of the bearing, especially for high motor speeds or when using rigid
couplings.
SIMOTICS FD 1LN1
68 Operating Instructions 01/2019
'
[
\
Assembly
5.4 Installing the machine
4. When positioning the machine, ensure that a uniform axial gap (y→0) is maintained around
the coupling.
5. Fix the machine to the foundation. The choice of fixing elements depends on the foundation
and is the plant operator's responsibility.
① Plates placed under the motor for alignment
② Laser alignment
Figure 5-4 Schematic diagram: Aligning the machine to the driven machine
Table 5-2 Permissible deviations for aligning the machine with flexible coupling
Max. speed n
n
≤ 1500 rpm x
max
1500 rpm < n
max
≤ 3600 rpm x
max
Note
Machine expansion
When performing alignment, make allowance for the thermal expansion of the machine due to
rising temperature.
See also
Tightening torques for screw and bolt connections (Page 173)
SIMOTICS FD 1LN1
Operating Instructions 01/2019 69
Max. parallel offset x Max. angular offset y
= 0.08 mm y
max
= 0.05 mm y
max
= 0.08 mm / 100 mm ∅ D
max
= 0.05 mm / 100 mm ∅ D
max
Assembly
5.4 Installing the machine
5.4.3 Aligning the machine to the driven machine and attaching it to it (IM B5)
The standard flange is provided with a centering. The choice of fit for the mating flange on the
driven machine is the system manufacturer's or the plant operator's responsibility.
Note
If the machine is not fitted with a standard flange, align the machine to suit the driven
machine.
Procedure
The machine axis must be horizontal when it is lifted and the flange must be parallel to the
mating flange, so as to avoid seizing and stressing. Otherwise damage to the centering will
result.
1. Grease the centering flange with assembly paste to make the process easier.
2. Screw three studs into tapped holes spaced about 120° apart around the driven machine
flange. The studs act as positioning aids.
See also
3. Position the machine so that its axis is aligned with that of the driven machine, but not yet
quite touching. Advance the machine slowly towards the driven machine; advancing too
quickly risks damaging the centering.
4. If necessary, rotate the machine into the right position so that the clearance holes in the
flange are central to the tapped holes.
5. Move the machine fully up against the mating flange so that it is fully in contact.
6. Fix the machine using the flange fixing bolts, finishing by replacing the studs.
Tightening torques for screw and bolt connections (Page 173)
There is a threaded hole M36 at the bottom of the machine where you can fasten the support
base.
● Mount the support base so that no additional mechanical tensions can occur in the housing.
WARNING
Mechanical tensions
The machine may be damaged by additional mechanical tensions in the housing caused
by incorrect mounting of the support base. The machine or machine parts may loosen
during operation.
This can result in death, serious injury or material damage.
● Mount the support base so that no additional mechanical tensions can occur in the
housing.
SIMOTICS FD 1LN1
70 Operating Instructions 01/2019
Assembly
5.4 Installing the machine
5.4.4 Aligning the machine to the driven machine and attaching it to it (IM V1, IM V10)
The standard flange is provided with a centering. The choice of fit for the mating flange on the
driven machine is the system manufacturer's or the plant operator's responsibility.
Note
If the machine is not fitted with a standard flange, align the machine to suit the driven machine.
Procedure
The machine axis must be vertical when it is lifted and the flange must be parallel to the mating
flange, so as to avoid seizing and stressing. Otherwise damage to the centering will result.
1. Grease the centering flange with assembly paste to make the process easier.
2. Screw in two studs into tapped holes on opposite sides of the driven machine flange. The
studs act as positioning aids.
3. Lower the machine slowly toward the driven machine and into the centering, so that the
flanges do not quite touch. Lowering too quickly risks damaging the centering.
4. If necessary, rotate the machine into the right position so that the clearance holes in the
flange are central to the tapped holes.
5. Lower the machine completely onto the mating flange so that it is fully in contact; then
remove the studs.
6. Fix the machine using the flange fixing bolts.
See also
Tightening torques for screw and bolt connections (Page 173)
Alignment accuracy
The coaxial characteristic of the shafts of electrical machines and driven machine may not
exceed 0.05 mm in diameter.
5.4.5 Axial and radial forces
You can obtain the permissible values for axial and radial forces by contacting the Siemens
Service Center (Page 171) or referring to the machine catalog.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 71
Assembly
5.5 Connecting the cooling water supply
NOTICE
Damage to bearings or the shaft
Large output masses and their centers of gravity outside the shaft extensions can lead to
resonance in operation. This can result in damage to the bearings and shaft.
Ensure that the permissible loads for the forces on the shaft extension are adhered to in
accordance with the catalog data or configuration data.
Note
You can find more information in Chapter 2 of catalog D81.8.
5.5 Connecting the cooling water supply
Documentation
Please refer to the operating instructions provided by the manufacturer of the cooler.
NOTICE
Machine overheating
If the cooling water cannot flow freely, the machine will not be cooled properly. The machine
overheats. This can result in material damage or even a total loss.
● Remove the flange cover plate.
● Insert the gaskets correctly.
Connecting the cooling water supply
The arrangement, type and size of the connecting flanges are specified in the dimension
drawing. If the connection side has to be changed, the location of the cooler and the cover can
be changed accordingly.
Different connecting flange is are available depending on the machine type.
Machine type Connecting flange
1LN….-3A…-…. / 1LM….-3A…-….
1LN….-3B…-…. / 1LM….-3B…-….
1LN….-4A…-…. / 1LM….-4A…-….
1LN….-4B…-…. / 1LM….-4B…-…. EN1092-1/11/DN50/PN16
EN1092-1/11/DN32/PN16
SIMOTICS FD 1LN1
72 Operating Instructions 01/2019
Assembly
5.5 Connecting the cooling water supply
1. Select piping materials with the required chemical resistance in accordance with the water
composition. Also consider the pressure load and compatibility with the materials from
which the cooler is made.
2. Use flexible water lines and hoses. This avoids mechanical stress at the connections as a
result of the heat-dependent height increase of the machine (thermal expansion).
3. Route and support the water pipes so that the connecting flanges are not exposed to
excessive stress or strain or vibration loads. If possible, arrange the pipes so that the cooler
can be removed when the machine has been fully assembled. The amount of space
required to do this is shown in the dimension drawing.
4. Remove the flange cover plate.
5. Correctly insert the seals.
6. Before connecting the pipes, flush them in order to remove any deposits and foreign bodies.
7. Install suitable filters in the cooling water intake pipe if the cooling water might contain dirt
and foreign bodies.
8. Connect the cooling water pipes to the flanges.
Filling and venting the cooler
1. After making the flange connections, open the vent plug and fill the cooler with water until
all the air inside the cooler is expelled.
NOTICE
Machine overheating
If air is in the cooling system, the machine will not be cooled properly. The machine
overheats. This can result in material damage or even a total loss.
● Make sure that there is no air in the cooling system.
2. Then retighten the vent plug. Then carry out a pressure test to check that the cooling water
supply has no leaks.
Do not exceed the maximum test pressure. The maximum test pressure is stamped on the
cooler type plate or is specified in the cooler operating instructions.
After conversion work
You must ensure that a proper seal is in place between the enclosure and the cooler and/or
between the enclosure and the cover.
The machine is not operated immediately
If the machine is not subsequently commissioned, make sure there is corrosion and frost
protection.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 73
Assembly
5.5 Connecting the cooling water supply
NOTICE
Bleed air from the cooling ducts
Adequate machine cooling cannot be guaranteed if the cooling ducts are not completely filled
with water. The machine can overheat.
● Vent the cooling ducts when filling. Completely fill the cooling ducts with water.
SIMOTICS FD 1LN1
74 Operating Instructions 01/2019
Electrical connection
6.1 Safety instructions for the electrical connection
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions (Page 15)
● Comply with the applicable national and sector-specific regulations.
● When using the machine within the European Union, comply with the specifications laid
down in EN 50110‑1 regarding safe operation of electrical equipment.
Material damage as a result of connection parts coming loose
If you use fixing elements made from the wrong material or apply the wrong tightening torque,
this could impair current transfer or cause connecting parts to become loose. This could result
in material damage to the machine or even in total failure, which could in turn lead indirectly to
material damage to the system.
● Tighten the screwed connections to the specified tightening torques.
● Observe any specifications regarding the materials from which fixing elements must be
made.
6
● When performing servicing, check the fastenings.
See also
Tightening torques for screw and bolt connections (Page 173)
Note
Service Center
If you require support when electrically connecting up the machine, please contact the Service
Center (Page 171).
6.2 Basic rules
The following generally applies to electrical connections:
● Ensure that there is a safe and reliable PE ground connection before starting any work.
● The connecting cables can be sealed and secured at every cable entry point into the
terminal box.
● Lay the connecting cables and in particular the PE conductor in the terminal box in an open
arrangement so that chafing of the cable insulation is prevented.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 75
;
;
Electrical connection
6.3 Terminal box
● Connect the machine in such a way that a permanent, safe electrical connection is
● Lay and secure external auxiliary cables separately from the main cable. Elements with
● In case of high humidity or when installed outside, water drops can move along the cable
maintained. Avoid protruding wire ends.
cable ties may be present for this purpose.
jacket and enter the motor through the cable entry and cable gland.
If you route the cable with an appropriate loop then water doesn't enter the terminal box, but
simply drips off.
Figure 6-1 Water drip loop
6.3 Terminal box
Depending on the version, different terminal boxes may be installed on the machine.
Depending on the terminal box, different cable entries and options for the cable connection are
possible. You can identify the terminal box installed on the machine via the illustrations in the
following chapters.
SIMOTICS FD 1LN1
76 Operating Instructions 01/2019
6.3.1 Terminal box 1XB1621
Figure 6-2 Terminal box 1XB1621
The connecting cables are introduced into the 1XB1621 terminal box through the cable glands
with threaded holes 2 x M80 x 2 and 2 x M25 x 1.5. The cable glands are not included in the
standard scope of supply. The version with sealing insert with break-off ring is optional.
You can find additional information here:
Electrical connection
6.3 Terminal box
● Bringing cables into the terminal box 1XB... with cable gland (Page 89)
● Connecting cables without cable lugs (Page 91)
● Connecting cables with cable lugs (Page 90)
See also
Bringing cables into the terminal box 1XB... with sealing insert with break-off ring (Page 88)
6.3.2 Terminal box 1XB1631
Figure 6-3 Terminal box 1XB1631
SIMOTICS FD 1LN1
Operating Instructions 01/2019 77
Electrical connection
6.3 Terminal box
The connecting cables are introduced into the 1XB1631 terminal box through cable glands with
threaded holes 4 x M80 x 2 and 2 x M25 x 1.5. The cable glands are not included in the standard
scope of supply. The version with onion sealing ring is optional.
You can find additional information here:
● Bringing cables into the terminal box 1XB... with cable gland (Page 89)
● Connecting cables without cable lugs (Page 91)
● Connecting cables with cable lugs (Page 90)
See also
Bringing cables into the terminal box 1XB... with sealing insert with break-off ring (Page 88)
6.3.3 Terminal box 1XB7730
Only a three-core power cable can be connected in terminal box 1XB7730.
Figure 6-4 Terminal box 1XB7730
The connecting cables are introduced into the 1XB7730 terminal box through the cable glands
with threaded holes 1 x M72 x 2 and 3 x M25 x 1.5. The cable glands are not included in the
standard scope of supply.
You can find additional information here:
● Bringing cables into the terminal box 1XB... with cable gland (Page 89)
● Connecting cables with cable lugs (Page 90)
● Connecting cables without cable lugs (Page 91)
SIMOTICS FD 1LN1
78 Operating Instructions 01/2019
6.3.4 Terminal box 1XB7731
Figure 6-5 Terminal box 1XB7731
The connecting cables are introduced into the 1XB7731 terminal box through the cable glands
with threaded holes 2 x M72 x 2 and 3 x M25 x 1.5. The cable glands are not included in the
standard scope of supply.
Electrical connection
6.3 Terminal box
You can find additional information here:
● Bringing cables into the terminal box 1XB... with cable gland (Page 89)
● Connecting cables with cable lugs (Page 90)
● Connecting cables without cable lugs (Page 91)
6.3.5 Terminal box 1XB7740
Figure 6-6 Terminal box 1XB7740
The connecting cables are introduced into the 1XB7740 terminal box through the cable glands
with threaded holes 4 x M80 x 2 and 3 x M25 x 1.5. The cable glands are not included in the
standard scope of supply.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 79
Electrical connection
6.3 Terminal box
You can find additional information here:
● Bringing cables into the terminal box 1XB... with cable gland (Page 89)
● Connecting cables with cable lugs (Page 90)
● Connecting cables without cable lugs (Page 91)
6.3.6 Terminal box 1XB7750
Figure 6-7 Terminal box 1XB7750
The connecting cables are introduced into the 1XB7750 terminal box through the cable glands
with threaded holes 8 x M72 x 2 and 3 x M25 x 1.5. The cable glands are not included in the
standard scope of supply.
You can find additional information here:
● Bringing cables into the terminal box 1XB... with cable gland (Page 89)
● Connecting cables with cable lugs (Page 90)
● Connecting cables without cable lugs (Page 91)
6.3.7 Rotating the terminal box
Depending on the terminal box and version, you can rotate the terminal box through ±90° in
accordance with the connection direction. The implementation on the other motor side is
possible only with the support of the Service Center (Page 171). If you want to rotate a terminal
box not listed below, then also contact the Service Center.
SIMOTICS FD 1LN1
80 Operating Instructions 01/2019
Electrical connection
6.3 Terminal box
Rotating the terminal box depends on the mount and the cross-section of the internal stator
cables as well as the terminal box type:
● 1XB7730
– With installed internal stator cables, you can rotate the terminal box through ±90°.
● 1XB7731
– For six or fewer cables, you can rotate the terminal box with installed stator cables
through ±90°.
– For more than six cables, you must remove the internal stator cables before rotation.
● 1XB7740
– For 12 or fewer cables and lower cross-sections, you can rotate the terminal box with
installed stator cables through ±90°.
– For more than 12 cables - or for cables with a cross-section greater than 50 mm² - you
must remove the internal stator cables before rotating the terminal box.
● 1XB7750
– Remove the internal stator cables before rotating the terminal box.
Rotating a terminal box with mounted stator cables
1. Ensure that the motor is disconnected from the power supply.
2. Release two diagonally opposed screws for the cover, and secure the cover using two M10
threaded bars screwed in diagonally opposing one another. Release the two other screws
and lift the cover off the terminal box. The terminal box cover is very heavy. Especially when
in a lateral position, ensure that the terminal box does not fall down.
3. If the motor is already connected:
– Remove the cables of the power supply.
– Release the screw connection of the cable entry. Remove the cables through the
opening.
4. Remove the grounding straps on two sides of the terminal box lower section.
5. Remove the screwed joints of the lower section with the console or optionally the cable duct.
6. Screw in two eye-bolts diagonally in the M10 thread at the corners. Slightly raise the terminal
box housing using a crane.
7. Rotate the terminal box through ±90° in the desired direction. Carefully place the terminal
box down. Take care not to damage the seal.
8. Screw the terminal box with the console / cable duct (4 x M16, tightening torque 170 Nm).
SIMOTICS FD 1LN1
Operating Instructions 01/2019 81
Electrical connection
6.3 Terminal box
9. Fasten the grounding straps to the terminal box lower section and the console or cable duct:
10.Reconnect the power supply cables. More information:
11.Screw in the two diagonally arranged threaded bars and slide the cover onto these bars.
12.Fix the two free screw connections and tighten by hand.
13.Remove the threaded bars and screw in the two other screws.
– After rotation, remove the plugs of the two nearest M8 threads on the console or cable
duct.
– Grind the surface at the drilled holes so that the grounding straps have metallic contact.
– Then fasten the two straps to the terminal box lower section and the console or cable
duct (4x M8, tightening torque 11 Nm).
– Protect the bare areas at the contact with corrosion protection.
– Connecting the grounding conductor (Page 85)
– Introducing and routing the cables ...
– Connecting cables ...
Take care not to damage the seal.
14.Tighten all screws (4 x M10, tightening torque 40 Nm).
Rotating a terminal box with removed stator cables
1. Ensure that the motor is disconnected from the power supply.
2. Release two diagonally opposed screws for the cover, and secure the cover using two M10
threaded bars screwed in diagonally opposing one another. Release the two other screws
and lift the cover off the terminal box. The terminal box cover is very heavy. Especially when
in a lateral position, ensure that the terminal box does not fall down.
3. If the motor is already connected:
– Remove the cables of the power supply.
– Release the screw connection of the cable entry. Remove the cables through the
opening.
4. Release the screwed connections of the internal stator cables, optionally also those at the
neutral point.
5. Remove the grounding straps on two sides of the terminal box lower section.
6. Remove the screwed joints of the lower section with the console or optionally the cable duct.
7. Screw in two eye-bolts diagonally in the M10 thread at the corners. Slightly raise the terminal
box housing using a crane.
8. Rotate the terminal box through ±90° in the desired direction. Carefully place the terminal
box down. Take care not to damage the seal.
9. Screw the terminal box with the console / cable duct (4 x M16, tightening torque 170 Nm).
SIMOTICS FD 1LN1
82 Operating Instructions 01/2019
Electrical connection
6.3 Terminal box
10.Fasten the grounding straps to the terminal box lower section and the console or cable duct:
– After rotation, remove the plugs of the two nearest M8 threads on the console or cable
duct.
– Grind the surface at the drilled holes so that the grounding straps have metallic contact.
– Then fasten the two straps to the terminal box lower section and the console or cable
duct (4x M8, tightening torque 11 Nm).
– Protect the bare areas at the contact with corrosion protection.
11.Connect the cables in accordance with the circuit diagram on the inside of the cover (M12,
tightening torque 20 Nm). Ensure that the minimum air clearances are observed. More
information:
Minimum air clearances (Page 94)
12.Reconnect the power supply cables. More information:
– Connecting the grounding conductor (Page 85)
– Introducing and routing the cables ...
– Connecting cables ...
13.Screw in the two diagonally arranged threaded bars and slide the cover onto these bars.
Take care not to damage the seal.
14.Fix the two free screw connections and tighten by hand.
15.Remove the threaded bars and screw in the two other screws.
16.Tighten all screws (4 x M10, tightening torque 40 Nm).
See also
Connecting cables with cable lugs (Page 90)
Connecting cables without cable lugs (Page 91)
Bringing cables into the terminal box 1XB... with cable gland (Page 89)
6.3.8 Mounting/removing the terminal box
When removing or installing the terminal box cover, secure it using diagonally arranged M10
threaded bars to prevent it falling.
Removing the terminal box
1. Release two diagonally opposing screws at the terminal box cover and replace them by
threaded bars.
2. Release the two other screws.
3. Carefully pull the terminal box cover over the threaded bars.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 83
Electrical connection
6.4 Preparation
Mounting the terminal box
1. Screw in the two threaded bars diagonally at the lower section of the terminal box.
2. Slide the terminal box cover over the threaded bars onto the lower section of the terminal
box.
3. Screw the screws into the free holes and tighten by hand.
4. Release the threaded bars.
5. Tighten all four M10 screws, tightening torque 40 Nm.
6.4 Preparation
6.4.1 Terminal designation
According to IEC / EN 60034‑8, the following basic definitions apply to the terminal
designations for 3-phase machines:
Table 6-1 Terminal designations using the 1U1-1 as an example
1 U 1 - 1 Designation
x Index for pole assignment for pole-changing machines where applicable. A lower
x Phase designation U, V, W
x Index for winding start (1) or end (2) or if there is more than one connection per
x Additional indices for cases in which it is obligatory to connect parallel power feed
6.4.2 Selecting cables
Take the following criteria into account when selecting the connecting cables:
● Rated current
● Rated voltage
● If required, service factor
● System-dependent conditions, such as ambient temperature, routing type, cable crosssection as defined by required length of cable, etc.
● Configuration notes
index signifies a lower speed. Special case for split winding.
winding
cables to several terminals with otherwise identical designations
● Requirements according to IEC/EN 60204‑1
● Dimensioning for bundled cable routing, e.g. according to DIN VDE 0298 Part 4 or
IEC 60364-5-52
SIMOTICS FD 1LN1
84 Operating Instructions 01/2019
6.4.3 Connecting the grounding conductor
The grounding conductor cross-section of the motor must be in full conformance with the
installation specifications, e.g. in accordance with IEC 60034-1.
Electrical connection
6.4 Preparation
External conductor cross-section S
mm²
35 25
50 25
70 35
95 50
120 70
150 70
185 95
240 120
300 150
400 185
Grounding conductor cross-section
mm²
There is a hexagon bolt with a flat washer and a spring washer on the stator frame at the
designated connection point for the grounding conductor. The grounding conductor can be
connected as follows:
● With stranded cables with cable lugs
● With flat cables with cable end designed accordingly
As an alternative, you can connect the grounding conductor without cable lugs using a
clamping plate at the marked connection point.
Connecting the grounding conductor
● Use the connecting terminals designated for the grounding conductor in the terminal box.
● Ensure that the connecting surface is bare and is protected against corrosion using a
suitable substance, e.g. acid-free Vaseline.
● Arrange the flat washer and spring washer under the screw head.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 85
Electrical connection
6.4 Preparation
● Check that the maximum permissible clamping thickness of 10 mm for the cable lug or strap
● Fasten the clamping screw according to the following table. Screw-in depth and tightening
See also
is not exceeded.
torque are different depending on whether cable lugs or ground terminals are used.
Screw Screw-in depth Tightening torque
When using cable lugs M6 > 6 mm 8 Nm
M8 > 8 mm 20 Nm
M12 x 25 > 16 mm 38 Nm
M16 x 35 > 20 mm 92 Nm
When using grounding
terminals
M6 > 9 mm 8 Nm
M8 > 12 mm 20 Nm
M10 > 15 mm 40 Nm
M12 > 18 mm 70 Nm
M16 > 20 mm 170 Nm
Converter operation (Page 101)
6.4.4 Connection without terminal box
If the machine was ordered without terminal box (where the cables are simply brought out of the
motor), then the proper connection must be made in an external terminal box.
WARNING
Incorrect dimensioning
Faults can occur if the appropriate technical data is not complied with when connecting up. For
instance, degree of protection, minimum air and creepage distances. These faults can result
in eventual or immediate death, serious injury or material damage.
● Ensure that the external terminal box is dimensioned according to the data on the rating
plate and is suitable for the respective use.
SIMOTICS FD 1LN1
86 Operating Instructions 01/2019
6.4.5 Connecting the machine for a specific direction of rotation
If the machine has one shaft extension or two shaft extensions with different diameters, the
direction of rotation when looking at the front of the single or the thicker shaft extension is
defined as follows:
● If you connect the line cables with phase sequence L1, L2, L3 to U, V, W or according to
NEMA at T1 T2 T3, then a clockwise phase sequence is obtained.
● If you interchange two connections, e.g. L1, L2, L3 at V, U, W or according to NEMA at
T2 T1 T3, then a counterclockwise phase sequence is obtained.
● On machines which are only allowed to run in one direction, the rating plate shows an arrow
which indicates the permitted direction of rotation, and it also specifies the terminal
connections in the required phase sequence.
Check the appropriate data before connecting the line feeder cables.
NOTICE
Incorrect direction of rotation
The machine will not be adequately cooled if it is operated other than how it was originally
ordered or with the incorrect direction of rotation. This can result in machine damage.
Electrical connection
6.4 Preparation
Observe the direction of rotation data on the nameplate.
6.4.6 Undrilled entry plate
If the entry plate is undrilled, you should match the number and size of the cable glands to the
operating conditions.
1. Unscrew the cable entry plate.
2. Drill the required number of holes or threads in the required size into the cable entry plate.
The thickness of the plate is selected in such a way as to give a sufficient number of turns
when the holes are tapped.
Please note that you are responsible for ensuring that the entry plate still has sufficient
strength after the holes have been drilled and tapped.
3. Mount the cable entry plate and the cables with the cable glands onto the terminal box.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 87
1P
ཱ
ི
Electrical connection
6.5 Inserting and routing the cables
6.5 Inserting and routing the cables
Table 6-2 Connection technology (with cable lug / connection without cable lug)
Terminal box Connection
GT640
1XB1621
1XB1631
1XB7730
1XB7731
1XB7740
1XB7750
With cable lug (Page 90)
Without cable lug (Page 91)
6.5.1 Bringing cables into the terminal box 1XB... with sealing insert with break-off ring
The 1XB1621, 1XB1631 terminal boxes can be equipped optionally with a sealing insert with
break-off ring. The connecting cable is sealed at the cable entry location using a cut-out sealing
insert and is fastened using a strain relief device.
Bringing cables into the terminal box and connecting them
The terminal box is opened, the cable cut to the correct length and stripped back. Make sure
that no external forces are acting on the cable connection.
Figure 6-8 Strain relief device and sealing insert
Proceed as follows when connecting the cables:
1. Remove the top part of the strain relief ③ and release the fixing screws for the bottom part
of the strain relief ②. The strain relief device can be located either in the terminal box or
externally. If necessary, switch the direction sense of the strain relief device.
2. Cut the seal insert ① so that its opening is 1 to 3 mm smaller than the diameter of the cable.
3. Pull the sealing insert over the end of the cable.
4. Prepare the end of the cable depending on the cable and its use, e.g. with a cable lug.
SIMOTICS FD 1LN1
88 Operating Instructions 01/2019
Electrical connection
6.5 Inserting and routing the cables
5. Connect the ends of the cables to the terminals in accordance with the circuit diagram.
The circuit diagram is located in the cover of the terminal box.
Refer to the "Connecting cables..." section for more information.
6. You might need to use a sleeve made of suitable sealing tape to modify the diameter where
it passes through the sealing insert. Push the sealing insert onto the prepared sleeve.
7. Insert the cable with the seal insert in position into the gland opening. Screw the strain relief
device together once the cable is in a concentric position in the gland opening.
8. Secure the strain relief device.
9. Tighten the clamping screws of the strain relief device so that the cable is clamped as
necessary, but do not damage the cable insulation. We recommend a torque of 5 Nm.
10.Retighten the clamping screws after 24 hours.
WARNING
Damage to insulation
If you tighten the strain relief clip clamping screws too tightly this can damage the
insulation. Damaged insulation can result in arcing. This can result in death, serious injury
or material damage.
Tighten the strain relief clip clamping screws to the specified torque.
6.5.2 Bringing cables into the terminal box 1XB... with cable gland
The connection cables are inserted into the terminal box via an exchangeable cable entry plate
or cable entry support. The cable entry plate is drilled by default. The cable glands are not
included in the standard scope of supply.
You can rotate the cable entry through 180°.
Table 6-3 Cable entry plate versions
Terminal box Standard
Cable entry plate with boreholes
1XB1621 2 x M80 x 2 + 2 x M25 x 1.5
1XB1631 4 x M80 x 2 + 2 x M25 x 1.5
1XB7730 1 x M72 x 2 + 3 x M25 x 1.5
1XB7731 2 x M72 x 2 + 3 x M25 x 1.5
1XB7740 4 x M80 x 2 + 3 x M25 x 1.5
1XB7750 8 x M72 x 2 + 3 x M25 x 1.5
Explosion protected version / op‐
tion L01
Undrilled
SIMOTICS FD 1LN1
Operating Instructions 01/2019 89
Electrical connection
6.5 Inserting and routing the cables
Insert the cable into the terminal box
Proceed as follows when introducing cables into the terminal box:
1. Unscrew the cable entry plate.
2. Drill the required number of holes or threads in the required size in the cable entry plate.
Ensure that the cable entry plate can be assembled after drilling and that it features
sufficient stiffness.
3. Fit the required cable glands.
4. Route the cables through the cable glands.
5. Fit the cable entry plate to the terminal box with the assembled cables.
6. Connect the ends of the cables to the terminals in accordance with the circuit diagram. The
circuit diagram is located in the cover of the terminal box.
Refer to Chapter "Connecting cables ..." for more information.
6.5.3 Laying cables
● Lay the cables in accordance with IEC/EN 60364-5-52.
● Use EMC cable glands for fixed cables. Screw the EMC cable glands into the threaded
holes in the entry plate, which can be unscrewed.
● Use shielded cables whose shields are conductively connected to a large area of the
terminal box of the motor via EMC cable glands.
● In the case of aluminum connecting bars, insert a steel washer between the cable lug and
the connecting bar. This prevents contact corrosion.
● Arrange the exposed connecting cables in the terminal box so that the PE conductor has
excess length and the insulation of the cable strands cannot be damaged.
● Close and seal unused bushings and glands using a metal screw plug. This is the way to
achieve a high frequency-proof shielding.
6.5.4 Connecting cables with cable lugs
1. Select the cable lugs according to the required cable cross-section and fixing screw or stud
size. Information about the maximum cross-section for the respective standard terminal box
design can be found in the catalog.
A sloped/angular arrangement of the supply cables is only permitted provided the required
minimum air clearances are met.
2. Remove the insulation from the conductor ends so that the remaining insulation reaches
almost up to the cable lug ①. Connect only one conductor per cable lug.
SIMOTICS FD 1LN1
90 Operating Instructions 01/2019
Electrical connection
6.5 Inserting and routing the cables
3. Fasten the cable lug to the end of the conductor correctly, e.g. by squeezing.
Figure 6-9 Connection with cable lug and fixing screw (schematic diagram)
4. Insulate the cable lug sleeves where necessary to ensure minimum air clearances and the
creepage distance are maintained.
5. Place the cable lug on the terminal support. If you are using a disconnecting link, check its
positioning.
For terminal boxes 1XB7740 and 1XB7750, place the cable lug on the busbar.
6. Tighten the fixing element ② with the corresponding tightening torque:
Fixing element Tightening torque
Fastening screw M12 20 Nm
Fixing screws M16 40 Nm
Fixing nuts M12 20 Nm
Note
You can find more information in Chapter 2 of catalog D81.8.
6.5.5 Connecting cables without cable lugs
Lug terminal connections - which are suitable for connecting flexible and stranded conductors
without the use of wire end ferrules - may be installed if ordered accordingly. If you wish to use
conductor end sleeves, then correctly crimp these onto the end of the conductor before
connecting up.
NOTICE
Overheating of the conductor ends
If the end of the conductor is not correctly enclosed by the wire end ferrule, but is trapped by
it, this can lead to overheating.
● Insert only one conductor end into each wire end ferrule, and attach the wire end ferrule
correctly.
● Insert only one conductor end into each terminal.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 91
Electrical connection
6.5 Inserting and routing the cables
Procedure
When connecting, carefully maintain the minimum clearances and creepage distances.
1. Open the terminal box and cut the cable to the correct length.
The clips of the 1XB7730/1XB7731 terminal boxes can accept cables with maximum
185 mm² cross-section.
2. Prepare the end of the cable depending on the cable and its use. It is not permissible that
the cable connection is subject to external forces.
3. Insulate the conductor ends in such a way that the remaining insulation reaches almost up
to the cable lug.
4. Make sure the terminal clamps ③, ④ are arranged correctly for the size of the conductor.
Insert the cable into the terminal clamps. Tighten the clamping nuts ⑤ to the tightening
torque as specified in the following table.
Terminal box Tightening torque
GT640 / 1XB1621 / 1XB1631 / 1XB1634 8 Nm
1XB7730 / 1XB7731 4 Nm
1XB7740 / 1XB7750 8 Nm
Figure 6-10 Connection using terminal clamps (schematic diagram)
5. If you have loosened the terminal body clamping bolts ②, then retighten them with the
following torque:
Terminal box Tightening torque
1XB1621 / 1XB1631 / 1XB1634 40 Nm
GT640 / 1XB7730 / 1XB7731 / 1XB7740 / 1XB7750 20 Nm
For terminal boxes GT640, 1XB7730 and 1XB7731, fasten the terminal element ① using a
clamping nut M12 on the threaded stud of the terminal support with a torque of 20 Nm.
SIMOTICS FD 1LN1
92 Operating Instructions 01/2019
6.5.6 Use of aluminum conductors
If you are using aluminum conductors, then comply with the following:
● Use only cable lugs that are suitable for connecting aluminum conductors.
● Immediately before inserting the aluminum conductor, remove the oxide layer from the
contact areas on the conductor and/or the mating piece. Do this using a brush or file.
● Then grease the contact areas immediately using neutral Vaseline. This prevents a new
oxide layer from forming.
NOTICE
Aluminum flow due to contact pressure
Aluminum flows following installation due to the contact pressure. The connection using
clamping nuts can loosen as a result. The contact resistance increases, obstructing the
current from being conducted. This can result in fire and material damage to the machine
– or even in total failure, as well as material damage to the plant or system due to machine
failure.
● Retighten the clamping nuts after approximately 24 hours and then again after
approximately four weeks. Make sure that the terminals are de-energized before you
tighten the nuts.
Electrical connection
6.5 Inserting and routing the cables
For 1XB7.. terminal boxes with aluminum connection bars, you can also connect copper cables
using copper cable lugs.
6.5.7 Using single-stranded cables
NOTICE
High temperatures from induced eddy currents
With high currents and where several single-stranded cables are used instead of multiplestranded cables, high temperatures can result in the cable entry area due to induced eddy
currents. This can result in material damage or even a machine failure.
● After commissioning, ensure that the temperature limits of the connected power cables are
not exceeded during operation. This temperature effect can be reduced by altering the
conditions at the entry points or by using modified cable entry plates after consultation with
the manufacturing plant.
● Use a cable entry plate made of non-ferrous metal.
6.5.8 Internal equipotential bonding
Between the ground terminal in the terminal box enclosure and the machine enclosure, the
fixing screws of the terminal box serve as PE conductor connection.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 93
Electrical connection
6.5 Inserting and routing the cables
Between terminal box cover and terminal box enclosure, the cover fixing screws serve as
equipotential bonding.
A special external ground conductor is only installed if, for example, flat seals are mounted
without additional support.
When performing any installation work, you must always take care to ensure that all
equipotential bonding measures remain effective.
6.5.9 Stepless mating face for the seal in the terminal box cover
The sealing face of the terminal box cover is formed by the terminal box enclosure and the cable
entry element. Therefore make sure these parts are correctly aligned, so as to ensure the seal
and hence the degree of protection.
Align the cable entry support and the cable entry plate to the terminal box enclosure so that the
sealing surface between the terminal box and the terminal box cover form a flat face. There
must be no steps in the sealing area.
6.5.10 Minimum air clearances
After proper installation, verify that the minimum air clearances between non-insulated parts
are maintained. Be aware of any protruding wire ends.
Table 6-4 Minimum air clearance dependent on rms value of the alternating voltage U
Rms value of the alternating voltage V
≤ 500 V 8 mm
≤ 630 V 10 mm
≤ 800 V 12 mm
≤ 1000 V 14 mm
≤ 1250 V 18 mm
Values apply at an installation altitude of up to 2000 m.
When determining the required minimum air clearance, the voltage value in the table may be increased
by a factor of 1.1, so that the rated input voltage range is taken into account during general use.
Minimum air clearance
rms
rms
SIMOTICS FD 1LN1
94 Operating Instructions 01/2019
6.5.11 Finishing connection work
1. Before closing the terminal box, please check that:
– The electrical connections in the terminal box have been made in accordance with the
specifications above and tightened with the correct tightening torque.
Remove the used bolts and fastening elements.
– The machine is connected in such a way that it rotates in the direction specified.
– The inside of the terminal box is clean and free of any cable debris, dirt and foreign
bodies.
– All of the seals and sealing surfaces of the terminal box are intact and in a good condition.
– Unused cable entries are closed and their plugs are tightly screwed in place, i.e. they can
only be released using a tool.
– The connecting cables are freely routed. The cable insulation cannot be damaged in
operation.
2. Close the terminal box using the cover fixing screws, see Chapter Tightening torques for
screw connections.
Electrical connection
6.6 Connecting the auxiliary circuits
See also
Tightening torques for screw and bolt connections (Page 173)
Mounting/removing the terminal box (Page 83)
6.6 Connecting the auxiliary circuits
6.6.1 Selecting cables
Take the following criteria into account when selecting the connecting cables for the auxiliary
circuits:
● Rated current
● Rated voltage
● System-dependent conditions, such as ambient temperature, routing type, cable crosssection as defined by required length of cable, etc.
● Requirements according to IEC/EN 60204‑1
SIMOTICS FD 1LN1
Operating Instructions 01/2019 95
Electrical connection
6.6 Connecting the auxiliary circuits
6.6.2 Bringing cables into the auxiliary terminal box and routing them
The required data for connecting the auxiliary circuits is located on the terminal diagram on the
inside of the respective auxiliary terminal or terminal box cover.
● In some cases a terminal strip is installed in the main terminal box for the auxiliary circuit
connections.
● The required stripped length on conductors for auxiliary terminals differs according to
terminal type (6 to 9 mm). When the length is correct, the conductor should reach the stop
in the terminal and at the same time the conductor insulation should reach the contact part
of the terminal.
Adapting the cable glands
A plate is bolted to the terminal box enclosure via a rectangular cutout through which the
connecting cables enter. The plate is generally delivered with threaded holes and cable glands.
1. Open the auxiliary terminal box and undo the cable entry plate screws. Depending on the
terminal box version, the cable entry plate is below a steel screening plate.
2. For the undrilled version, drill the required number of holes or threads in the required size
of the cable gland into the cable entry plate.
3. Mark the cables if necessary for subsequent assignment.
4. Pull the cables through the cable glands and the cable entry plate, and connect the cables.
5. Fit the cable entry plate.
6. Make sure that the seal on the screwed sockets for the cable glands satisfies the degree of
protection.
6.6.3 Connecting an external fan motor
1. When working on the external fan, carefully comply with the instructions provided in the
operating instructions for the external fan motor.
2. Connect the external fan motor in accordance with the terminal diagram provided in the
external fan terminal box. When doing this, carefully observe the data stamped on the rating
plate.
3. Check:
– The line voltage and line frequency match the details on the rating plate;
– the cross-sections of the designated connecting cables are matched to the rated current
of the motor (with due consideration for the relevant installation directives).
4. Connect the protective conductor to the protective conductor terminal.
5. Establish the other electrical connections as per the circuit diagram.
6. If the separate fan is supplied with a connector already attached, check whether the pin
allocation of the connector matches the pin allocation of the socket.
7. Complete the work at the external fan terminal box, see "Completing connection work in the
auxiliary terminal box" (Page 98).
SIMOTICS FD 1LN1
96 Operating Instructions 01/2019
6.6 Connecting the auxiliary circuits
Check direction of rotation
The direction of rotation of the external fan is indicated with an arrow on the fan cover specifying
the direction of rotation or with a terminal designation on the rating plate of the external fan unit.
● Check the direction of rotation. Depending on the version, the fan impeller is visible through
the air intake opening in the fan cover on the external fan motor.
The direction of rotation of the external fan must match what is specified.
● If the direction of rotation is incorrect, then interchange two line cables in the external fan
motor terminal box.
6.6.4 Connecting temperature monitoring for the stator winding
The stator winding is monitored for thermal loading by temperature sensors embedded in the
stator winding.
The connecting cables of the temperature sensors are routed to the main or auxiliary terminal
box, depending on the version. The connection and assignment of the terminals is specified in
the circuit diagram.
Electrical connection
WARNING
Hazard due to electric shock
The installation of the temperature sensors for the winding monitoring with respect to the
winding is implemented according to the requirements for basic insulation. The temperature
sensor connections are located in terminal boxes, safe to touch, and have no protective
separation. This is the reason that in the case of a fault, a hazardous voltage can be present
at the measuring sensor cable. When touched, this can result in death, severe bodily injury
and material damage.
● When connecting the temperature sensor to external temperature monitoring devices,
when required, apply additional measures to fully comply with the requirements set out in
IEC 60664-1 or IEC 61800-5-1 "Hazard due to electric shock”.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 97
Electrical connection
6.6 Connecting the auxiliary circuits
6.6.5 Terminating the connection work (auxiliary circuit)
1. Before closing the auxiliary terminal box, please check that:
– The cables are connected in accordance with the terminal diagram.
– The cables are freely arranged so that they cannot come into contact with the machine,
and the cable insulation cannot be damaged.
– The inside of the terminal box is clean and free of any cable debris, dirt and foreign
bodies.
– The cable glands are firmly tightened, are suitable with respect to the degree of
protection, type of cable routing, permissible cable diameter, etc., and have been
mounted in full compliance with specifications and regulations
– The threads in the connection plate are sealed using cable and conductor entries, thread
adapters or sealing plugs that achieve the respective degree of protection.
– Unused cable entries are sealed. The sealing elements are firmly screwed in, and can
only be released using a tool.
– All of the seals/gaskets and sealing surfaces of the terminal box are in good condition
– The screws of all of the screw clamps are fully tightened, even if they are not being used.
2. Close the auxiliary terminal box using the cover supplied for this purpose. See section
"Tightening torques for screw and bolt connections (Page 173)" for the tightening torque of
the fixing bolts for the cover.
SIMOTICS FD 1LN1
98 Operating Instructions 01/2019
Start-up
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions
● Comply with the applicable national and sector-specific regulations at the place of
installation
● When using the machine within the European Union, comply with the specifications laid
down in EN 50110‑1 regarding safe operation of electrical equipment.
See also
Safety information (Page 15)
7.1 Checks to be carried out prior to commissioning
Once the system has been correctly installed, you should check the following prior to
commissioning:
7
Note
Checks to be carried out prior to commissioning
The following list of checks to be performed prior to commissioning does not claim to be
complete. It may be necessary to perform further checks and tests in accordance with the
specific situation on-site.
● The machine is undamaged.
● The machine has been correctly installed and aligned, the transmission elements are
correctly balanced and adjusted.
● All fixing screws, connection elements, and electrical connections have been tightened to
the specified tightening torques.
● The operating conditions match the data provided in accordance with the technical
documentation, such as degree of protection, ambient temperature, etc..
● Moving parts such as the coupling move freely.
● All touch protection measures for moving and live parts have been taken.
● For test operation or when commissioning without output element, carefully secure the
feather key using a suitable security element. When doing this, take into account the
balancing type of the motor.
SIMOTICS FD 1LN1
Operating Instructions 01/2019 99
Start-up
7.1 Checks to be carried out prior to commissioning
Second shaft extension
If the second shaft extension is not used:
● Carefully secure the feather key to prevent it from being thrown out, and for balancing type
"H" (standard type), ensure its weight is reduced to approximately 60 % of the original value.
● Using covers, carefully secure the unused shaft extension so that it cannot be touched.
Cooling
● Check that the machine cooling is available for commissioning.
Cooling water supply
● The cooling water supply is connected and ready for operation.
● The cooling water supply is switched on. The data can be found on the rating plate.
● Cooling water is available in the configured quality and quantity.
● The water cooling is switched on. The data can be found on the rating plate.
● Cooling water of the configured quality is used.
● The bearing insulation should be implemented as shown on the plates.
Electrical connection
● The grounding and equipotential bonding connections have been made correctly.
● The machine is connected so that it rotates in the direction specified.
● Appropriately configured control and speed monitoring functions ensure that the motor
cannot exceed the permissible speeds specified in the technical data. For this purpose,
compare the data on the rating plate or, if necessary, the system-specific documentation.
● The minimum insulation resistance values are within tolerance.
● Minimum air clearances have been maintained.
● Any supplementary motor monitoring devices and equipment have been correctly
connected and are functioning correctly.
● All brakes and backstops are operating correctly.
● At the monitoring devices, the values for "Warning" and "Shutdown" are set.
SIMOTICS FD 1LN1
100 Operating Instructions 01/2019
Loading...