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Siemens SIMOTICS SD SH 71 315 Series Operating Instructions Manual

Low voltage motors
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Edition
04/2022
OPERATING INSTRUCTIONS
SIMOTICS SD
Low Voltage Motors
1LE7
SH 71 ... 315
www.siemens.com/drives

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Summary of Contents for Siemens SIMOTICS SD SH 71 315 Series

  • Page 1 Edition 04/2022 OPERATING INSTRUCTIONS SIMOTICS SD Low Voltage Motors 1LE7 SH 71 ... 315 www.siemens.com/drives...
  • Page 3 Introduction Safety information Description SIMOTICS SD Preparing for use Low-Voltage Motors 1LE7 shaft heights 71 ... 315 Installation Electrical connection Operating Instructions Commissioning Operation Maintenance Spare parts Disposal Service & support Technical data Quality documents 04/2022 A5E51689275A-AA...
  • Page 4 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.

  • Page 5: Table Of Contents

    Table of contents Introduction ............................9 About these instructions ...................... 9 My support ........................10 Safety information ..........................11 Information for those responsible for the plant or system ........... 11 The 5 safety rules ....................... 11 Qualified personnel ......................12 Safe handling ........................
  • Page 6 Table of contents Transport and storage ......................26 4.5.1 Safety instructions for transport ..................26 4.5.2 Transport ........................... 29 4.5.3 Storage ..........................29 4.5.4 Securing the rotor ......................31 4.5.5 Commissioning after storage ..................... 33 4.5.5.1 Insulation resistance and polarization index ............... 33 4.5.5.2 Regreasing rolling bearings after storage periods of up to two years ........
  • Page 7 Table of contents Electrical connection ........................... 57 Basic rules ......................... 57 Safety instructions for the electrical connection..............58 Connecting the motor ......................59 6.3.1 Terminal box ........................60 6.3.1.1 Circuit diagram inside the terminal box cover ..............60 6.3.1.2 Direction of rotation ......................60 6.3.1.3 Terminal marking ......................
  • Page 8 Table of contents 8.5.1 Avoidance of damage to rolling bearings during stoppages ..........85 8.5.2 Decommissioning the motor ....................85 8.5.3 Re-commissioning the motor ..................... 85 Faults ..........................86 8.6.1 Inspections in the event of faults..................86 8.6.2 Electrical faults ........................86 8.6.3 Mechanical faults .......................
  • Page 9 Table of contents Service & support ..........................117 Siemens Service Center (Kalwa) ..................117 Siemens Industry Online Support ..................117 Further documents ......................118 Technical data ............................ 119 Configurator for drive technology ..................119 Tightening torques ......................119 B.2.1 Tightening torques for screw and bolt connections ............119 B.2.2...
  • Page 10 Table of contents 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...

  • Page 11: Introduction

    Introduction About these instructions These instructions describe the motor 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 motor and follow the instructions to become familiar with its design and operating principles and thus ensure safe, problem-free motor operation and long service life.

  • Page 12: My Support

    Later, you can log on with your login data. You can create your own personal library under "mySupport" using the following procedure. Precondition You have registered for and logged on to "Siemens Industry Online Support", hereinafter referred to as "SIOS". SIOS (https://support.industry.siemens.com/cs/ww/en/) Procedure for creating a personal library 1.

  • Page 13: Safety Information

    Safety information Information for those responsible for the plant or system This motor has been designed and built in accordance with the specifications contained in Directive 2014/35/EU ("Low-Voltage Directive") and IS 12615, and is intended for use in industrial plants. Please observe the country-specific regulations when using the motor outside India.

  • Page 14: Qualified Personnel

    Safety information 2.3 Qualified personnel Qualified personnel All work at the motor 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.
  • Page 15 Safety information 2.4 Safe handling Risk of burns due to hot surfaces Individual motor parts can become hot in operation. Burns can result when coming into contact with these parts. • Never touch motor parts during operation. • Allow the motor to cool before starting work on the motor. •...

  • Page 16: Electromagnetic Fields When Operating Electrical Power Engineering Installations

    Safety information 2.5 Electromagnetic fields when operating electrical power engineering installations 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.

  • Page 17: Electromagnetic Compatibility

    Safety information 2.7 Electromagnetic compatibility The ESD protective measures required for components that can be destroyed due to electrostatic discharge are shown in the following drawings: a = conductive floor surface b = ESD table c = ESD shoes d = ESD overall e = ESD wristband f = cabinet ground connection Electromagnetic compatibility...

  • Page 18: Interference Voltages When Operating The Converter

    Safety information 2.10 Interference voltages when operating the converter 2.10 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 motors with integrated sensors (e.g. PTC thermistors), interference voltages caused by the converter may occur on the sensor lead.

  • Page 19: Description

    Description Area of application WARNING Risk of explosion This motor is not designed for use in hazardous areas. An explosion can occur if the motor is operated in these areas. This can result in death, serious injury or material damage. •...

  • Page 20: Rating Plates

    Description 3.2 Rating plates Rating plates 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. Data on the rating plate Item Description Item...

  • Page 21: Installation

    Description 3.3 Installation Installation The regulations and standards used as the basis for designing and testing this motor are stamped on the rating plate. The motor design basically complies with the following standards: Table 3- 1 Applicable general regulations Feature Standard Dimensioning and operating behavior EN / IEC 60034-1...

  • Page 22: Cooling And Ventilation

    Description 3.3 Installation 3.3.1 Cooling and ventilation 3.3.1.1 General The motors of this series have a closed primary (internal) cooling circuit and an open secondary cooling circuit (surface cooling). The surface cooling varies depending on the version. 3.3.1.2 Motors with a fan Self-ventilation (standard): Cooling method IC 411 according to EN / IEC 60034-6 Located at the ND end of the stator housing is an air intake cowl that guides the external air on its way to the motor.

  • Page 23: Motors Without A Fan (Optional)

    Description 3.3 Installation 3.3.1.3 Motors without a fan (optional) Surface cooling by free convection: Cooling method IC 410 according to EN / IEC 60034-6 Surface cooling by relative movement of cooling air: Cooling method IC 418 according to EN / IEC 60034-6 3.3.2 Bearings In order to support the motor shaft and maintain its position in the non-moving part of the...

  • Page 24: Types Of Construction/Method Of Installation

    Description 3.3 Installation 3.3.4 Types of construction/method of installation The type of construction of the motor is stated on the rating plate. Table 3- 2 Type of construction Basic type of construc- Diagram Other methods of Diagram tion code installation IM B3 (IM 1001) IM V5 (IM 1011) IM V6 (IM 1031)

  • Page 25: Degree Of Protection

    Description 3.3 Installation 3.3.5 Degree of protection The motor has a type of protection as stamped on the rating plate, and can be installed in dusty or humid environments. 3.3.6 Environmental conditions Limit values for the standard version Ambient temperature -20 °C to +50 °C Installation altitude ≤...
  • Page 26 Description 3.3 Installation 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...

  • Page 27: Preparing For Use

    Preparing for use Good planning and preparation of motor applications are essential in terms of keeping installation simple and avoiding errors, ensuring safe operation, and allowing access to the motor for servicing and corrective maintenance. This chapter outlines what you need to consider when engineering/configuring your plant in relation to this motor and the preparations you need to make before the motor is delivered.

  • Page 28: Delivery

    The drive systems are put together on an individual basis. When you take receipt of the delivery, please check immediately whether the items delivered are in accordance with the accompanying documents. Siemens will not accept any claims relating to items missing from the delivery and which are submitted at a later date.
  • Page 29 Preparing for use 4.5 Transport and storage 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. •...
  • Page 30 Preparing for use 4.5 Transport and storage Danger when incorrectly lifting and transporting The motor can slide or topple over if it is not correctly lifted or transported. This can result in death, serious injury or material damage. • Use all the lifting eyes on the motor. •...

  • Page 31: Transport

    Preparing for use 4.5 Transport and storage 4.5.2 Transport If any transport locks are in place, remove them before commissioning. Store the transport locks or disable them. Use the transport locks when transporting the motors again or reactivate the transport locks. The motors are packed in different ways depending on how they are transported and their size.
  • Page 32 Preparing for use 4.5 Transport and storage Bare metal surfaces For transport, the bare surfaces (shaft ends, flange surfaces, centering edges) should be coated with an anti-corrosion agent which will last for a limited amount of time (<6 months). Apply suitable anti-corrosion measures for longer storage times. Condensation drain hole Open any condensation drain holes to drain the condensation depending on the environmental conditions, every six months at the latest.

  • Page 33: Securing The Rotor

    Preparing for use 4.5 Transport and storage 4.5.4 Securing the rotor Depending on the version, the motor is fitted with a rotor shipping brace. This protects the bearings against damage due to shock and vibration during transport or storage. NOTICE Motor damage due to vibrations Not using the rotor shipping brace can cause damage to the motor if it is jolted during transport or storage.
  • Page 34 Preparing for use 4.5 Transport and storage Alternative rotor bracing • If you transport the motor 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...

  • Page 35: Commissioning After Storage

    Preparing for use 4.5 Transport and storage 4.5.5 Commissioning after storage 4.5.5.1 Insulation resistance and polarization index Measuring the insulation resistance and polarization index (PI) provides information on the condition of the motor. It is therefore important to check the insulation resistance and the polarization index at the following times: •...

  • Page 36: Ensure Adequate Cooling

    Preparing for use 4.6 Ensure adequate cooling Ensure adequate cooling WARNING Overheating and failure of the motor Death, severe injury or material damage can occur if you do not carefully observe the following points. • Do not obstruct ventilation. • Prevent the air expelled by neighboring equipment from being immediately sucked in again.
  • Page 37 Preparing for use 4.6 Ensure adequate cooling For motors with separately driven fan, install an interlock circuit that prevents the main motor being switched on if the separately driven fan is not operational. Table 4- 1 Air guidance Incorrect Correct 1LE7 shaft heights 71 ...

  • Page 38: Interlock Circuit For Anti-Condensation Heating

    Preparing for use 4.7 Interlock circuit for anti-condensation heating Table 4- 2 Minimum dimension "x" for the distance between adjacent modules and the air intake of the motor Shaft height 80 ... 100 180 ... 200 225 ... 250 280 ... 315 Interlock circuit for anti-condensation heating If the anti-condensation heating is operated while the motor is running, this can increase the temperatures inside the motor.

  • Page 39: Voltage And Frequency Fluctuations During Line Operation

    Preparing for use 4.9 Voltage and frequency fluctuations during line operation 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 –...

  • Page 40: Electromagnetic Compatibility

    Preparing for use 4.12 Electromagnetic compatibility 4.12 Electromagnetic compatibility Note If the torque levels are very unequal (e.g. when a reciprocating compressor is being driven), a non-sinusoidal motor current will be induced whose harmonics can have an impermissible effect on the supply system and cause impermissible interference emissions as a result. Note Converter •...

  • Page 41: Converter Operation

    Preparing for use 4.13 Converter operation 4.13 Converter operation 4.13.1 Parameterizing the converter • If the design of the motor requires connection to a particular converter type, the rating plate will contain corresponding additional information. • Correctly parameterize the converter. Parameterizing data can be taken from the motor rating plates.

  • Page 42: Reducing Bearing Currents During Operation With Converter (Low Voltage)

    Preparing for use 4.13 Converter operation 4.13.3 Reducing bearing currents during operation with converter (low voltage) Taking the following actions will reduce the bearing currents: • Ensure that the contacts are made over a large area. Solid copper cables are not suitable for high-frequency grounding because of the skin effect.

  • Page 43: Insulated Bearings For Converter Operation

    Preparing for use 4.13 Converter operation Measures to reduce bearing currents 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: •...

  • Page 44: Tandem Operation

    Preparing for use 4.13 Converter operation 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. •...

  • Page 45: Installation

    Installation Observe the following when carrying out any work on the motor: • Comply with the general safety instructions (Page 11). • Comply with the applicable national and sector-specific regulations. • When using the motor within the European Union, comply with the specifications laid down in EN 50110-1 regarding safe operation of electrical equipment.

  • Page 46: Preparing For Installation

    Installation 5.2 Preparing for installation Preparing 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 motor is unpacked and ready for mounting at the installation location. •...

  • Page 47: Insulation Resistance

    Installation 5.2 Preparing for installation 5.2.2 Insulation resistance 5.2.2.1 Insulation resistance and polarization index Measuring the insulation resistance and polarization index (PI) provides information on the condition of the motor. It is therefore important to check the insulation resistance and the polarization index at the following times: •...
  • Page 48 Installation 5.2 Preparing for installation Measure the insulation resistance 1. Before you begin measuring the insulation resistance, read the operating manual for the insulation resistance meter you are going to use. 2. Make sure that no power cables are connected. 3.

  • Page 49: Preparing The Assembly Area

    Installation 5.2 Preparing for installation 5.2.3 Preparing the assembly area 1. Prepare a suitable assembly area (e.g. assembly stands). Make sure that the assembly area has sufficient clearance from the floor for the DE shaft end. The necessary data is provided in the motor dimension drawing.

  • Page 50: Motors With Type Of Construction Im B15, Im B9, Im V8 And Im V9

    Installation 5.2 Preparing for installation 5.2.5 Motors with type of construction IM B15, IM B9, IM V8 and IM V9 Types of construction without bearings on the drive side These motors do not have their own bearing system for the motor shaft at the drive end (DE). The motor shaft is accepted by the (hollow) shaft or coupling of the system or driven machine.

  • Page 51: Aligning And Fixing The Motor

    Installation 5.3 Aligning and fixing the motor Aligning and fixing the motor Observe the following when aligning and mounting: • Ensure a flat and uniform contact surface for foot and flange mounting. • When mounting on the wall, support the motor from below, e.g. using a bracket, or bolt •...

  • Page 52: Flatness Of The Supporting Surfaces For Conventional Motors

    Installation 5.3 Aligning and fixing the motor • Foot mounting/flange mounting – Use the specified thread size laid down in EN 50347 / IS 1231 / IS 2223 when flanging the motor to a foundation or a motor flange. – Mount the motor at all the foot or flanged holes provided. The choice of fixing elements depends on the foundation and is the plant operator's responsibility.

  • Page 53: Installing The Motor

    Installation 5.4 Installing the motor Installing the motor 5.4.1 Preconditions for smooth, vibration-free operation Preconditions for smooth, vibration-free operation: • Stable foundation design • Precise alignment of the motor • Correct balancing of parts to be fitted to the shaft end. •...

  • Page 54: Horizontal Types Of Construction With Flange

    Installation 5.4 Installing the motor Note Motor expansion When aligning, make allowance for the thermal expansion of the motor when the temperature increases. 5.4.2.3 Horizontal types of construction with flange 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.

  • Page 55: Vertical Types Of Construction With Flange

    Installation 5.4 Installing the motor 5.4.2.4 Vertical types of construction with flange 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. If the motor is not fitted with a standard flange, align the motor to suit the driven machine.

  • Page 56: Mounting The Drive Output Elements

    Installation 5.4 Installing the motor 5.4.5 Mounting the drive output elements The rotor is dynamically balanced. For shaft extensions with feather keys, the type of balancing is specified using the following coding on the face of the drive end of the shaft extension and on the rating plate: •...
  • Page 57 Installation 5.4 Installing the motor Pulling on drive output elements • Requirements: – The coupling and/or the drive output element must be appropriately dimensioned for the operating case at hand. – Observe the coupling manufacturer's instructions. – Make sure that the balancing type of the drive output element correctly matches the type of balance of the rotor.
  • Page 58 Installation 5.4 Installing the motor Shaft extensions with feather key The feather key data for the shaft and drive output element must match and indicate the correct type of balancing. The drive output element must be correctly mounted. The balance quality corresponds to vibration severity grade "A" for the complete motor; vibration severity grade "B"...

  • Page 59: Electrical Connection

    Electrical connection Observe the following when carrying out any work on the motor: • Comply with the general safety instructions (Page 11). • Comply with the applicable national and sector-specific regulations. • When using the motor within the European Union, comply with the specifications laid down in EN 50110-1 regarding safe operation of electrical equipment.

  • Page 60: Safety Instructions For The Electrical Connection

    Electrical connection 6.2 Safety instructions for the electrical connection Safety instructions for the electrical connection Hazardous voltages on electrical connections Dangerous voltages can arise on electric motors. Death, injury or material damage can occur. Observe the following safety information before connecting up the motor: •...

  • Page 61: Connecting The Motor

    Electrical connection 6.3 Connecting the motor Connecting the motor 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 cross- section as defined by required length of cable, etc.

  • Page 62: Terminal Box

    Electrical connection 6.3 Connecting the motor 6.3.1 Terminal box DANGER Hazardous voltage Electric motors have high voltages. When incorrectly handled, this can result in death or severe injury. Switch off the motor so that it is in a no-voltage condition before you open the terminal box.

  • Page 63: Terminal Marking

    Electrical connection 6.3 Connecting the motor 6.3.1.3 Terminal marking According to IEC / EN 60034-8, the following basic definitions apply to the terminal markings for 3-phase motors: Table 6- 1 Terminal markings using the 1U1-1 as an example 1 Marking Code for split winding, where applicable.

  • Page 64: Connecting Protruding Cables

    Electrical connection 6.3 Connecting the motor CAUTION Damage to connecting cables that are freely led out You must observe the following note to avoid damaging connecting cables that are freely led out: • It must be ensured that there are no foreign bodies, dirt, or moisture in the terminal base of the motor enclosure.

  • Page 65: Cable Glands

    Electrical connection 6.3 Connecting the motor 6.3.2 Cable glands Cable glands with (sheet metal) nuts (EN 50262) ① ② O ring Cable glands with reductions and (sheet metal) nuts (EN 50262) ① ② O ring 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...
  • Page 66 Electrical connection 6.3 Connecting the motor Mounting position of sheet metal nuts in screw-type connections ② O ring ③ Mounting position of metal-sheet nuts Cable glands with connecting thread in the terminal box (EN 50262) ② O ring 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...

  • Page 67: Tightening Torques

    Electrical connection 6.4 Connecting the grounding conductor 6.3.3 Tightening torques Note the information in Chapter "Tightening torques (Page 119)". Cable entries, sealing plugs and thread adapters Note the following when mounting: • Avoid damaging the cable jacket. • Adapt the tightening torques to the cable jacket materials. Observe the documentation for tightening torques of the cable entries and sealing plugs for direct mounting at the motor as well as additional glands (e.g.

  • Page 68: Connecting A Temperature Sensor/Anti-Condensation Heater

    Electrical connection 6.5 Connecting a temperature sensor/anti-condensation heater Internal ground terminal When making connections, ensure the following: • 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 bolt head. •...

  • Page 69: Conductor Connection

    Electrical connection 6.6 Conductor connection Connecting optional integrated devices and equipment In addition to the current-dependent overload protective device located in the connecting cables, use the optionally available integrated devices and equipment, for example, temperature sensors, anti-condensation heating. Depending on the terminal box version, connect the auxiliary circuits to the terminal box. Terminal block connection Conductor connection Cross-sections that can be connected depending on the size of the terminal (possibly reduced...

  • Page 70: Type Of Conductor Connection

    Electrical connection 6.6 Conductor connection 6.6.1 Type of conductor connection Terminal board Max. conductor cross-section [mm²] Connection with cable lug DIN 46 234 Bend down the cable lug for the connection. Connection of an individual conductor with terminal clamp copper cable ①...

  • Page 71: Connecting Converters

    Electrical connection 6.7 Connecting converters Connecting converters NOTICE Material damage caused by an excessively high supply voltage Material damage can occur if the supply voltage is too high for the insulation system. • Observe the values in the following tables. SIMOTICS motors can be operated with SINAMICS G converters and SINAMICS S converters (uncontrolled and controlled infeed) when maintaining the permissible peak voltages.

  • Page 72: Final Checks

    Electrical connection 6.8 Final checks Final checks Before closing the terminal box/terminal base of the motor enclosure, check the following: • Establish the electrical connections in the terminal box in accordance with the information in this documentation. • Maintain the air clearances between non-insulated parts as described in Chapter "Minimum air clearances (Page 62)".

  • Page 73: Commissioning

    Commissioning Observe the following when carrying out any work on the motor: • Comply with the general safety instructions (Page 11). • Comply with the applicable national and sector-specific regulations. • When using the motor within the European Union, comply with the specifications laid down in EN 50110-1 regarding safe operation of electrical equipment.

  • Page 74: Checks To Be Carried Out Prior To Commissioning

    Commissioning 7.1 Measures before commissioning 7.1.1 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.

  • Page 75: Mechanical And Electrical Check

    Commissioning 7.1 Measures before commissioning 7.1.2 Mechanical and electrical check • Rotate the rotor to ensure that it does not touch the stator. • Ensure that the bearing insulation is not bridged/jumpered. • Using the appropriately designed and adjusted control and speed monitoring functions ensure that the permissible speeds specified on the rating plate cannot be exceeded.

  • Page 76: Converter Operation

    Commissioning 7.1 Measures before commissioning 7.1.3 Converter operation • If the motor design requires connection to a specific converter type, carefully check the supplementary data on the rating plate/supplementary plate. • Ensure that the converter is correctly parameterized. Depending on the design, you will find some parameterization data on the rating plate of the motor.

  • Page 77: Commissioning A Separately Driven Fan

    Commissioning 7.1 Measures before commissioning 7.1.6 Commissioning a separately driven fan The separately driven fan ensures that the motor is cooled irrespective of the motor speed or direction of rotation. The separately driven fan is only suitable for one direction of rotation. Checks before the first test run Before the first test run, carry out the following checks: •...

  • Page 78: Further Documents

    Commissioning 7.1 Measures before commissioning 7.1.7 Further documents Note Further documents Observe all of the other documents provided with this motor. 7.1.8 Setpoint values for monitoring the bearing temperature Prior to commissioning If the motor is equipped with bearing thermometers, set the temperature value for disconnection on the monitoring equipment before the first motor run.

  • Page 79: Switching On

    Commissioning 7.2 Switching on Switching on Measures for start-up After installation or inspections, the following measures are recommended for normal start- up of the motors: • Start the motor without a load. To do this, close the circuit breaker and do not switch the motor off prematurely.
  • Page 80 Commissioning 7.2 Switching on Test run After installation or inspection, carry out a test run: 1. Start up the motor without a load. To do this, close the circuit breaker and do not switch off prematurely. Check whether it is running smoothly. Switching the motor off again while it is starting up and still running at slow speed should be kept to a bare minimum, for example for checking the direction of rotation or for checking in general.

  • Page 81: Operation

    Operation Observe the following when carrying out any work on the motor: • Comply with the general safety instructions (Page 11). • Comply with the applicable national and sector-specific regulations. • When using the motor within the European Union, comply with the specifications laid down in EN 50110-1 regarding safe operation of electrical equipment.
  • Page 82 Operation 8.1 Safety instructions for operation 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 air and creepage distances may be fallen below (violated) when coming close to active parts.
  • Page 83 Operation 8.1 Safety instructions for operation Risk of burn injuries as a result of hot surfaces Individual motor parts can become hot in operation. Burns can result when coming into contact with these parts. • Never touch motor parts during operation. •...

  • Page 84: Safety Instructions Relating To Ventilation And Cooling

    Operation 8.1 Safety instructions for operation 8.1.1 Safety instructions relating to ventilation and cooling 8.1.1.1 Safety instructions for forced ventilation (option) Forced ventilation (optional): Type of cooling IC 416 in accordance with EN / IEC 60034-6 WARNING Risk of burning Operating the motor without a separately driven fan results in overheating.

  • Page 85: Switching On The Motor

    Operation 8.2 Switching on the motor Switching on the motor 1. If at all possible, run the motor without load and check that it is running smoothly. 2. If it runs perfectly, connect a load. NOTICE Thermal overload of motors connected directly to the line supply In addition to the load torque, the ramp-up (accelerating) time is essentially influenced by the moment of inertia to be accelerated.

  • Page 86: Stoppages

    Operation 8.5 Stoppages Stoppages The stoppage is a shutdown for a period of time, during which the motor is stopped but remains at the location of use. Under normal ambient conditions, e.g. the stationary motor not exposed to any vibration, no increased level of corrosion, the following measures are required.

  • Page 87: Avoidance Of Damage To Rolling Bearings During Stoppages

    Operation 8.5 Stoppages 8.5.1 Avoidance of damage to rolling bearings during stoppages Extended stoppages at the identical or almost identical resting position of the rotor in the rolling bearings can result in damage, such as brinelling or corrosion. • During stoppages, regularly start up the motor for a brief period once a month. As a minimum, turn the rotor several times.

  • Page 88: Faults

    Operation 8.6 Faults Faults 8.6.1 Inspections in the event of faults Natural disasters or unusual operating conditions, such as overloading or short circuit, are faults that overload the motor electrically or mechanically. Immediately perform an inspection after such faults. Correct the cause of the fault as described in the respective remedial measures section. Repair any damage to the motor.

  • Page 89: Mechanical Faults

    Operation 8.6 Faults 8.6.3 Mechanical faults Table 8- 2 Mechanical faults ↓ Grinding noise ↓ Radial vibrations ↓ Axial vibrations Possible causes of faults Remedial measures Rotating parts grind Establish the cause and realign the parts. Rotor or coupling not balanced. Disconnect the rotor or coupling and rebalance.

  • Page 90: Faults On The Separately Driven Fan

    Operation 8.6 Faults 8.6.5 Faults on the separately driven fan The following table shows the possible causes of and remedial measures for faults on forced- ventilated motors. Table 8- 4 Cooling system faults ↓ High temperature rise with load Possible causes of faults Remedial measures Wrong direction of rotation of the separately Check the electrical connections to the separately driven fan.

  • Page 91: Maintenance

    Maintenance Through careful and regular maintenance, inspections, and overhauls you can detect faults at an early stage and resolve them. This means that you can avoid consequential damage. Operating conditions and characteristics can vary widely. For this reason, only general maintenance intervals can be specified here.

  • Page 92: Inspection And Maintenance

    Maintenance 9.2 Inspection and maintenance Inspection and maintenance 9.2.1 Safety instructions for inspection and maintenance 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.

  • Page 93: Inspections In The Event Of Faults

    Maintenance 9.2 Inspection and maintenance Damage from foreign bodies in the motor Foreign bodies such as dirt, tools or loose components can be left by accident inside the motor after maintenance is performed. These can cause short circuits, reduce the performance of the cooling system or increase noise in operation.

  • Page 94: General Inspection

    Maintenance 9.2 Inspection and maintenance 9.2.4 General inspection Check that the installation conditions are observed. We recommend that the following checks are performed after approx. 16 000 operating hours or at the latest after two years: Table 9- 2 Checks that have to be performed during the general inspection Checking When the mo- At standstill...

  • Page 95: Maintenance Intervals

    Maintenance 9.2 Inspection and maintenance 9.2.6 Maintenance intervals Please note the following in order to identify faults at an early stage, rectify them and avoid follow-on damage: • Maintain the motor regularly and carefully. • Inspect the motor. • Motors must be allocated a revision/inspection number after inspection. NOTICE Motor failure Material damage can occur if the motor develops faults or is overloaded.

  • Page 96: Re-Greasing

    Maintenance 9.2 Inspection and maintenance 9.2.7 Re-greasing For motors with regreasing system, relubrication intervals, grease quantity and grease grade are provided on the lubricant plate. Additional data can be taken from the main motor rating plate. Grade of grease for standard motors UNIREX N3 - ESSO. Below are the list of approved greases that can be used: Table 9- 4 Approved rolling bearing greases for vertical and horizontal types of construction...

  • Page 97: Cleaning

    Maintenance 9.2 Inspection and maintenance 9.2.8 Cleaning Cleaning the grease ducts and spent grease chambers The spent grease collects outside each bearing in the spent grease chamber of the outer bearing cap. When replacing bearings, remove the spent grease. Dismantle the bearing cartridges to replace the grease in the lubrication duct. Cleaning the cooling air ducts Regularly clean the cooling air ducts through which the ambient air flows.

  • Page 98: Drain Condensate

    Maintenance 9.2 Inspection and maintenance 9.2.10 Drain condensate If there are condensation drain holes present, open these at regular intervals, depending on climatic conditions. WARNING Hazardous voltage The winding can be damaged if objects are introduced into the condensation holes (optional).

  • Page 99: Servicing The Separately Driven Fan

    Maintenance 9.2 Inspection and maintenance 9.2.12 Servicing the separately driven fan WARNING Injury caused by rotating parts or live (under voltage) parts Live electrical parts are dangerous. Contact with them can cause death, serious injury or material damage. • Before carrying out any maintenance work on the separately driven fan, disconnect it from the mains, particularly before opening the terminal box.

  • Page 100: Corrective Maintenance

    Maintenance 9.3 Corrective maintenance Corrective maintenance Observe the following when carrying out any work on the motor: • Comply with the general safety instructions (Page 11). • Comply with the applicable national and sector-specific regulations. • When using the motor within the European Union, comply with the specifications laid down in EN 50110-1 regarding safe operation of electrical equipment.
  • Page 101 Maintenance 9.3 Corrective maintenance Replacing bearings Recommended interval after which bearings are to be replaced under normal operating conditions: Table 9- 5 Bearing replacement intervals Ambient temperature Principle of operation Bearing replacement intervals 50 °C Horizontal coupling operation 50,000 h 50 °C With axial and radial forces 20,000 h...

  • Page 102: Bearing Bushes

    Maintenance 9.3 Corrective maintenance 9.3.1.1 Bearing bushes Protect the bearings against the ingress of dirt and moisture. When fitting the bearing cartridges, observe the specified screw tightening torques (Page 119). 9.3.1.2 Installing bearings Sealing the bearings Note the following details: •...
  • Page 103 Maintenance 9.3 Corrective maintenance Procedure 1. Replace the damaged components. 2. Remove any dirt from the components. Remove any grease and the remains of sealant or liquid threadlocker. 3. Prepare the bearing seats: – Lightly oil the inner ring seat. –...

  • Page 104: Mounting Dimension "X

    Maintenance 9.3 Corrective maintenance 9.3.2 Mounting dimension "x" Mounting dimension "x" of V rings Shaft height Standard design 4.5 ±0.6 80 ... 112 6 ±0.8 132 ... 160 7 ±1 180 ... 225 11 ±1 250 ... 315 13.5 ±1.2 Special design •...

  • Page 105: Canopy, Encoder Under The Canopy

    Maintenance 9.3 Corrective maintenance Metal fan • Shaft heights 71...90: Release the M5 set screw so that the fan can rotate freely on the shaft. • Shaft height 100...315: Remove the locking ring. • Use a suitable tool to pull off the fan (puller). •...

  • Page 106: Tightening Torques

    Maintenance 9.3 Corrective maintenance 9.3.5 Tightening torques Note the information in Chapter "Tightening torques for screw and bolt connections (Page 119)". 9.3.6 Screw lock washers Nuts or bolts that are mounted together with locking, resilient and/or force-distributing elements (e.g., safety plates, spring-lock washers, etc.) must be refitted together with identical, fully functional elements.

  • Page 107: Optional Add-On Units

    Maintenance 9.3 Corrective maintenance 9.3.9 Optional add-on units Note Further documents Observe all of the other documents provided with this motor. You can find additional operating instructions here: Service & support (Page 117) Mounting a brake Table 9- 6 Assigning standard brakes for 1LE7 motors Shaft Pole Brake...

  • Page 108: Encoder

    Maintenance 9.3 Corrective maintenance 9.3.11 Encoder Note Further documents Observe all the manufacturer's documentations provided with the encoder. 9.3.12 Grounding brush • Ensure that the micro-switch, if available with grounding brush unit, is connected to the drive interlock. • Check the wearing status of the grounding brush regularly and replace it if necessary. 1LE7 shaft heights 71 ...

  • Page 109: Spare Parts

    Spare parts 10.1 Part lists Part Description Part Description 1.40 End shield 5.49 Self-tapping screw 1.43 Shaft sealing ring 5.70 Terminal clamp 1.44 Bearing cover DE, inner 5.78 Spring lock washer 1.46 Cover ring 5.79 Bolt 1.49 Bolt 5.83 Seal 1.58 Spring washer 5.84...

  • Page 110: Exploded Drawings

    Spare parts 10.2 Exploded drawings 10.2 Exploded drawings Shaft height 71...90 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...
  • Page 111 Spare parts 10.2 Exploded drawings Shaft height 100...132 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...
  • Page 112 Spare parts 10.2 Exploded drawings Shaft height 160...200 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...
  • Page 113 Spare parts 10.2 Exploded drawings Shaft height 225...315 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...
  • Page 114 Spare parts 10.2 Exploded drawings 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...

  • Page 115: Disposal

    Disposal Protecting the environment and preserving its resources are corporate goals of the highest priority for us. Our worldwide environmental management system to ISO 14001 ensures compliance with legislation and sets high standards in this regard. Environmentally friendly design, technical safety and health protection are always firm goals even at the product development stage.

  • Page 116: Information According To Article 33 Of The Reach Regulation

    Disposal 11.2 Information according to Article 33 of the REACH regulation 11.2 Information according to Article 33 of the REACH regulation This product contains one or several subproducts in which the following substance – belonging to the "list of candidates" – exists in a concentration exceeding 0.1 percent by weight.

  • Page 117: Disposal Of Components

    Disposal 11.5 Disposal of components 11.5 Disposal of components Components The motors consist mainly of steel and various proportions of copper and aluminum. Metals are generally considered to be unlimitedly recyclable. Sort the components for recycling according to whether they are: •...
  • Page 118 Disposal 11.5 Disposal of components 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...

  • Page 119: Service & Support

    Service & support Siemens Service Center (Kalwa) Log an online service request at: www.siemens.co.in/industry-services-srf For direct access to our technical experts contact: • Online Support (http://www.siemens.com/automation/service&support) • Support request (http://www.siemens.com/automation/support-request) • Product training web link (https://www.siemens.co.in/sitrain) Service numbers Table A- 1...

  • Page 120: Further Documents

    (http://www.siemens.com/ yourcontact) Siemens Support for on the move With the "Siemens Industry Online Support" App, you can access more than 300,000 documents for Siemens Industry products – any time and anywhere. The App supports you in the following areas: • Resolving problems when executing a project •...

  • Page 121: Technical Data

    You can find product information on your motor according to ErP Directive 2019/1781 in the configurator for drive technology. If you enter the motor order number (MLFB), you will find technical documentation such as data sheets, characteristic curves and CAD drawings for your motor: https://siemens.co.in/dtk (https://siemens.co.in/dtk) Tightening torques B.2.1...

  • Page 122: Terminal Board And Grounding

    Technical data B.2 Tightening torques Tightening torques The bolted connections with metal contact surfaces, such as end shields, bearing cartridge parts, terminal box parts bolted onto the stator frame, should be tightened to the following torques, depending on the thread size: Table B- 1 Tightening torques for bolted connections with a tolerance of ±10 %.

  • Page 123: Tightening Torques For Electrical Connections Of Monitoring Equipment And Anti-Condensation Heating

    Technical data B.2 Tightening torques B.2.4 Tightening torques for electrical connections of monitoring equipment and anti-condensation heating Table B- 5 Tightening torques for monitoring equipment and anti-condensation heating Main terminal box 0.4 Nm EN 60999-1: 2000 table 4 III Auxiliary terminal box min 0.6 Nm max 0.8 Nm B.2.5...

  • Page 124: Technical Data And Drawings

    Technical data B.3 Technical data and drawings Technical data and drawings B.3.1 Terminal box dimensions Shaft Terminal height Cable entry 71 ... 90 TB7 D04 47.3 63.7 33.5 33.5 1 x M16 x 1.5 1 x M25 x 1.5 100 ... 112 TB7 F04 80.5 82.5...

  • Page 125: Arrangement Of The Auxiliary Terminal Box

    Technical data B.3 Technical data and drawings B.3.2 Arrangement of the auxiliary terminal box ① Main terminal box ② Auxiliary terminal box, type II ③ Auxiliary terminal box, type I 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...
  • Page 126 Technical data B.3 Technical data and drawings 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...

  • Page 127: Quality Documents

    Quality documents Quality documents SIMOTICS in SIOS You can find the quality documents here: https://support.industry.siemens.com/cs/ww/de/ps/13310/cert (https://support.industry.siemens.com/cs/ww/en/ps/13310/cert) 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...
  • Page 128 Quality documents C.1 Quality documents SIMOTICS in SIOS 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...

  • Page 129: Index

    Index “ “Siemens Industry Online Support” App ....118 Disassembly Disposal ............114 Disposal Chemicals ............115 5 safety rules ............11 Components ............. 115 Drive output element ..........55 Aligning ............52, 53 Aluminum conductors ..........68 Electrical faults ............86 Anti-condensation heating ........
  • Page 130 Selection of bolts ............ 51 O-ring seals ............105 Over-critical motor ..........37 Separately driven fan ..........35 Overspeed .............. 25 Siemens Industry Online Support App ..............118 Spare parts ............118 1LE7 shaft heights 71 ... 315 Operating Instructions, 04/2022, A5E51689275A-AA...
  • Page 131 Index Standard flange ..........52, 53 Stoppages ............... 84 Rolling bearings ..........85 Supplementary devices ........... 23 Switching on ..........78, 78, 83 System resonances ..........37 Tandem operation ........... 42 Technical Support ..........117 Terminal marking ............ 61 Test run ..............78 Tightening torques ..........
  • Page 132 Airoli Node contract. All product designations may be trademarks or other rights of Siemens Navi Mumbai - 400 708 AG, its affiliated companies or other companies whose use by third parties for their...

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