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SIMOTICS TN Series N-compact
Induction motor
Type 1LA8
Operating Instructions / Installation Instructions
Edition
05/2016
siemens.com

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   Summary of Contents for Siemens 1LA8

  • Page 1

    SIMOTICS TN Series N-compact Induction motor Type 1LA8 Operating Instructions / Installation Instructions Edition 05/2016 siemens.com...

  • Page 2

    31.05.2016 16:04 V13.00...

  • Page 3

    Introduction Safety information Description SIMOTICS TN Series N-compact Preparations for use Induction motor 1LA8 Assembly Electrical connection Operating Instructions Installation Instructions Start-up Operation Maintenance Spare parts Disposal Service and Support Technical data Quality documents Edition 05/2016...

  • Page 4: Assembly

    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

    Torsional loading of the drive train due to faults in the electrical supply........30 4.12 Transport and storage......................30 4.12.1 Transport markings........................30 4.12.2 Checking the delivery......................31 4.12.3 Requirements for safe lifting and transporting...............31 4.12.4 Securing the rotor........................32 4.12.5 Transporting the machine set....................33 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 6

    Terminal designation......................64 6.3.3 Selecting cables........................64 6.3.4 Connecting the grounding conductor..................64 6.3.5 Radio-frequency grounding for converter operation...............65 6.3.6 Connection without terminal box....................66 6.3.7 Connecting the machine for a specific direction of rotation............67 Connection..........................67 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 7

    Avoidance of condensation or formation of condensation within the machine.......90 8.6.2 Avoidance of damage to roller bearings during stoppages............90 8.6.3 Shaft grounding brushes (option)...................91 8.6.4 Measurement of the insulation resistance after an extended stoppage.........91 Decommissioning the machine....................92 Re-commissioning the machine.....................92 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 8

    Stator and rotor........................119 10.6 Ventilation..........................120 10.7 Drive end rolling-contact bearings with bearing housing............121 10.8 Drive end rolling-contact bearings without bearing housing..........122 10.9 Roller bearings, DE - end shield with integrated bearing cover...........123 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 9

    Maximum peak voltage at the motor terminals ................78 Table 7-1 Set values for monitoring the bearing temperatures before commissioning.......84 Table 7-2 Set values for monitoring the bearing temperatures in normal operation ........84 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 10

    Image 5-3 Schematic diagram: Aligning the machine to the driven machine..........55 Image 6-1 Terminal box GT640........................60 Image 6-2 Terminal box 1XB1621........................60 Image 6-3 Terminal box 1XB1631........................61 Image 6-4 Terminal box 1XB1634 .......................62 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 11

    Terminal box 1XB1621 with standard cable entry..............128 Image 10-10 Two-part cable entry........................128 Image 10-11 Terminal box 1XB1634 with standard cable entry..............131 Image 10-12 Two-pane cable entry........................131 Image 10-13 Terminal box 1XB9600......................133 Image 10-14 Three-part cable entry.......................133 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 12

    Table of contents SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 13: Introduction

    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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 14

    Using the "Documentation" function, you can efficiently compile your own plant or system documentation. The "Documentation" compiled in a specific language can also be automatically exported in one of the other available languages. The full functionality is only available for registered users. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 15: Safety Information

    EN 50110‑1 "Working in a voltage-free state". Apply the five safety rules in the sequence stated before starting work. Five safety rules 1. Disconnect the system. Also disconnect the auxiliary circuits, for example, anti-condensation heating. 2. Secure against reconnection. 3. Verify absence of operating voltage. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 16: Qualified Personnel

    ● Always observe the “five safety rules" (Page 15) when carrying out any work on the machine. ● Only remove the covers using the methods described by these operating instructions. ● Operate the machine properly. ● Regularly and correctly maintain the machine. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 17

    Burns and other damage to health and material may result. ● Read the information in these operating instructions and the product information supplied by the manufacturer. ● Observe the relevant safety regulations and wear the personal protective equipment specified. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 18: Electrostatic Sensitive Devices

    ● Always place electrostatic sensitive devices on conductive bases. ● Always pack, store and transport electronic modules or components in conductive packaging, e.g. metallized plastic or metal containers, conductive foam material or domestic aluminum foil. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 19: Electromagnetic Compatibility

    A strongly irregular torque, for example with the drive of a reciprocating motor, forces a non- sinusoidal motor current. The emerging harmonics can have an impermissible influence on the line power supply via the connection lines. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 20: Interference Voltages When Operating The Converter

    ● Protect the personnel working in the plant by taking appropriate measures, such as erecting identifying markings, safety barriers and warning signs and giving safety talks. ● Observe the nationally applicable health and safety regulations. ● Do not carry any magnetic or electronic data media. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 21: Description

    Terminal markings and direction of rotation IEC/EN 60034‑8 Noise emission IEC/EN 60034‑9 Starting characteristics, rotating electrical machines IEC/EN 60034‑12* Vibration severity grades IEC/EN 60034‑14 Vibration limits DIN ISO 10816-3 * For machines in line operation only SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 22: Table 3-2 Data On The Rating Plate

    Motor weight [kg] (Content depending on the version) (19) Additional information (optional) Rated current [A] (20) Maximum speed [rpm] (10) Rated power [kW] (21) Country of manufacture / City (11) Power factor [cos φ] SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 23

    The 1L.831.‑2 can optionally also be equipped with a unidirectional external fan. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 24: Table 3-3 Rolling-contact Bearing Variants

    The terminal box can be arranged either on the left or right of the machine. It is not possible to change the position to the other side of the machine at a later date. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 25: Table 3-4 Assignment Of Shaft Heights To Terminal Boxes

    Anti-condensation heating (option) The machine is fitted with anti-condensation heating. The connection data is listed on an additional plate on the machine. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 26

    Description SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 27: Preparations For Use

    ● Install an interlock circuit that switches off the anti-condensation heating once the main machine is switched on. ● Only switch on the anti-condensation heating after the motor has been switched off. Carefully comply with the data on the anti-condensation heating plate. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 28: Noise Emissions

    Supply system switching Damage to the machine may be caused when switching to another supply system with different phasing. ● The phasing must be synchronized during switching. Use appropriate means to synchronize the phasing. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 29: Space Requirements

    Excessive vibrations can damage the machine set. The vibration limit values according to DIN ISO 10816-3 must not be exceeded. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 30: Torsional Loading Of The Drive Train Due To Faults In The Electrical Supply

    Phytosanitary Measures (ISPM). Note the symbols which appear on the packing. These have the following meanings: Fragile material Keep dry Keep cool Center of Do not use Attach here gravity hand hook SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 31: Checking The Delivery

    ● Use only the load carrying device on the stator frame for lifting. ● Use the load carrying device appropriate for the machine position. ● Use suitable rope guiding or spreading devices. The weight of the machine is shown on the rating plate. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 32: Securing The Rotor

    Vertical motors are supplied from the manufacturing plant in the horizontal position. ① ② Sleeve Screw and washer Image 4-1 Axial location of the rotor SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 33: Transporting The Machine Set

    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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 34: Storage

    ● Ensure that the air circulation under the equipment is not impeded. – Place wooden spacer blocks between the covers and the motor. – Covers or tarpaulins must not trail on the floor around the machine. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 35

    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 34)", and if possible, packed. ● Check the motor for damage. ● Carry out any necessary maintenance work. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 36: Protection Against Corrosion

    ● Inspect the machine regularly and apply an additional coating of corrosion protection if necessary. Document all preservation measures taken so that they can be reversed before the machines are put back into service. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 37: Converter Operation

    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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 38

    ● 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.

  • Page 39: Insulated Bearings When Operating The Converter

    ● Also for subsequent installation work, such as the installation of an automatic lubrication system or a non-insulated vibration sensor, make sure that the bearing insulation cannot be bridged. ● Contact the Service Center, if necessary. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 40: Image 4-3 Schematic Representation Of A Tandem Drive

    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. See also Service and Support (Page 137) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 41: Assembly

    ● Temperature-sensitive parts such as normal cables or electronic components must not rest against or be attached to mounted machine parts. ● Only use heat-resistant mounting parts. The connecting cables and cable entries must be suitable for the ambient temperature. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 42: Insulation Resistance And Polarization Index

    1. Before you begin measuring the insulation resistance, please read the operating manual for the insulation resistance meter you are going to use. 2. Make sure that no power cables are connected. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 43: Table 5-1 Stator Winding Insulation Resistance At 40° 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 TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 44

    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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 45: Preparing The Mating Faces

    ● 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 137). SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 46: Checking The Load Handling Attachments

    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 TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 47: Removing Anti-corrosion Protection

    Metal objects, such as scrapers, spatulas or pieces of metal, are not suitable to remove the anti-corrosion protection. These could damage the surfaces of the machine parts. ● Lightly oil the depreserved surfaces. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 48: Mounting The Output Elements

    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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 49: Lifting And Transporting The Machine

    ● 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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 50

    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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 51: Draining Condensation

    2. Replace them when you have finished. 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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 52: Putting The Machine Down

    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 TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 53: Installing The Machine

    ● Take into account the maximum forces occurring in the case of a fault such as short circuit or system transfers in phase opposition. – When selecting the bolts – When designing the foundation SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 54: Preconditions For Smooth, Vibration-free Operation

    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 TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 55: Table 5-2 Permissible Deviations For Aligning The Machine With Flexible Coupling

    ≤ 3600 rpm = 0.05 mm = 0.05 mm / 100 mm ∅ D Note Machine expansion When performing alignment, make allowance for the thermal expansion of the machine due to rising temperature. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 56: 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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 57: Axial And Radial Forces

    0.05 mm in diameter. 5.3.7 Axial and radial forces You can obtain the permissible values for axial and radial forces by contacting the Siemens Service Center (Page 137) or referring to the machine catalog. 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.

  • Page 58

    Assembly 5.3 Installing the machine SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 59: Electrical Connection

    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. Terminal box GT640 (Page 60) Terminal box 1XB1621 (Page 60) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 60: Terminal Box Gt640

    ● Inserting the cable into the GT640 terminal box (Page 68) ● Connecting cables with cable lugs (Page 71) ● Connection without cable lugs (Page 71) 6.2.2 Terminal box 1XB1621 Image 6-2 Terminal box 1XB1621 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 61: Terminal Box 1xb1631

    ● Inserting the cable into the 1XB16... terminal box with cable gland (Page 68) ● Inserting the cable into the 1XB.. terminal box with ring seal (Page 69) ● Connecting cables with cable lugs (Page 71) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 62: Terminal Box 1xb1634

    ● Inserting the cable into the 1XB16... terminal box with cable gland (Page 68) ● Inserting the cable into the 1XB.. terminal box with ring seal (Page 69) ● Connecting cables with cable lugs (Page 71) ● Connection without cable lugs (Page 71) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 63: Terminal Box 1xb9600

    ● Check that the connections (star or delta) comply with the specifications on the rating plate. ● Ensure that the connection values correspond to the information on the rating plate. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 64: Terminal Designation

    There is a hexagon bolt with a flat washer and a spring washer on the stator frame at the designated connecting 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 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 65: Radio-frequency Grounding For Converter Operation

    Establish the radio-frequency ground connection with flat cables. Alternatively you can establish the radio-frequency ground connection with cable lugs. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 66: Connection Without Terminal Box

    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. Observe the data on the rating plate. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 67: Connecting The Machine For A Specific Direction Of Rotation

    ● Connect the machine in such a way that a permanent, safe electrical connection is maintained. Avoid protruding wire ends. ● Lay and secure external auxiliary cables separately from the main cable. Elements with cable ties may be present for this purpose. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 68: Inserting The Cable Into The Gt640 Terminal Box

    1XB1621 2 x M80 x 2 + 2 x M25 x 1.5 Undrilled 1XB1631 4 x M80 x 2 + 2 x M25 x 1.5 1XB1634 1XB9600 Onion ring only SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 69: Inserting The Cable Into The 1xb.. Terminal Box With Ring Seal

    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. Image 6-7 Strain relief device and sealing insert SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 70: Laying Cables

    ● Close off unused bushings with a metal threaded plug. This is the way to achieve a high frequency-proof shielding. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 71: Connecting Cables With Cable Lugs

    Connection 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 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 72: Image 6-9 Connection Using Terminal Clamps (schematic Diagram)

    For terminal box GT640, the fixing of the terminal element is done using a terminal nut M12 on the threaded stud of the terminal support with a torque of 20 Nm. Image 6-9 Connection using terminal clamps (schematic diagram) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 73: Use Of Aluminum Conductors

    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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 74: Stepless Mating Face For Sealing In The Terminal Box Cover (not For Gt640)

    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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 75: Finishing Connection Work

    (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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 76: Connecting Temperature Monitoring For The Stator Winding

    When connecting the temperature sensor to external temperature monitoring devices, when required, apply additional measures to fully comply with the requirement "Hazard due to electric shock", see IEC 60664-1 or IEC 61800-5-1. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 77: Terminating The Connection Work (auxiliary Circuit)

    This results in a higher motor temperature. ● Reduce the power to prevent exceeding the temperature class and to avoid consequential premature thermal aging of the insulation. ● Contact the Service Center if necessary. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 78: Maximum Peak Voltage At The Motor Terminals

    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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 79

    ● 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.

  • Page 80: Converter Operation On A Grounded Network

    PE connecting points of normal terminal boxes are 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 TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 81: Start-up

    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. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 82: Measuring The Insulation Resistance Before Commissioning

    ● 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 42) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 83: Greasing The Roller Bearings Prior To Commissioning

    3. Check the bearings before regreasing. If necessary, install new bearings. 4. Lubricate the bearings and reinstall the bearing components. See also Regreasing intervals and types of grease for operating roller bearings (Page 101) Stoppages (Page 89) Transport and storage (Page 30) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 84: Setpoint Values For Monitoring The Bearing Temperature

    Before running the machine for the first time, set the temperature value for shutdown on the monitoring device. Table 7-3 Set values for monitoring the winding temperatures during commissioning Set value Temperature Shutdown 145 °C SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 85: Test Run

    As a consequence, when ramping up, observe the following: ● Monitor the ramp-up time and number of consecutive starts. ● Comply with the limit values and/or ramp-up conditions specified in the catalog or the order documentation. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 86: De-energizing

    This will avoid the formation of condensation. ● Do not switch on the anti-condensation heating for at least two hours after the motor has been switched off. This prevents damage to the winding insulation. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 87: Operation

    Certain parts of the machine become hot during operation. Severe burns can result from contact with these parts. ● Check the temperature of parts before touching them. If required, apply suitable protective measures. ● Allow the machine to cool before starting work on the machine. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 88: Switching Off The Anti-condensation Heating

    ● Make sure that the anti-condensation heating is switched off before the machine is switched on. ● Only operate anti-condensation heating when the machine is switched off. See also Interlock circuit for anti-condensation heating (option) (Page 27) De-energizing (Page 86) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 89: Switching On The Machine

    Damage may occur to the motor if it is not stored properly. If the machine is to be taken out of operation for more than 12 months, suitable anti-corrosion, preservation, packaging, and drying measures must be taken. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 90: Avoidance Of Condensation Or Formation Of Condensation Within The Machine

    Use the fitted key or the coupling halves as reference markers. ● During re-commissioning, refer to the information in the "Commissioning" section. See also Start-up (Page 81) Greasing the roller bearings prior to commissioning (Page 83) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 91: Shaft Grounding Brushes (option)

    ● 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 42) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 92: Decommissioning The Machine

    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 machine. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 93: Electrical Faults

    Winding short circuit or phase short cir‐ Determine the winding resistances and insulation cuit in stator winding resistances. Carry out repair work after consulta‐ tion with the manufacturer. Incorrect direction of rotation Check the connection. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 94: Mechanical Faults

    Reinforce the foundation after consultation with the and foundation manufacturer. Changes in foundation Determine the cause and rectify it. Realign the ma‐ chine. Note any changes taking place during warm up ① SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 95: Roller Bearing Faults

    Too much grease in bearing Remove surplus grease. Wrong grease in the bearing Use the correct grease. Friction marks on raceway Replace the bearing. Scoring (brinelling) Replace the bearing. Avoid any vibration at standstill SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 96

    Operation 8.9 faults SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 97: Maintenance

    If the machine is not maintained it can suffer damage. This can cause faults which can result in eventual or immediate death, serious injury or material damage. Perform regular maintenance on the machine. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 98: Measurement Of The Insulation Resistance And Polarization Index In The Context Of Maintenance Work

    ● Before starting up a machine for the first time ● After an extended period in storage or downtime ● Within the scope of maintenance work SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 99: Inspections In The Event Of Faults

    Additional tests may also be required according to the system-specific conditions. NOTICE Machine damage When carrying out the inspection, if you detect any impermissible deviations from the normal state, you must rectify them immediately. They may otherwise cause damage to the machine. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 100: General Inspection

    The motor only has to be dismantled if the bearings are to be replaced. 9.1.7 Servicing and maintaining the anti-condensation heating The anti-condensation heating is maintenance-free. If it is defective, contact the Service Center (Page 137). SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 101: Regreasing Intervals And Types Of Grease For Operating Roller Bearings

    Corrosive effect on copper DIN 51811 0 or 1 at a test temperature of +120° C Corr. ° Resistance to corrosion (EMCOR) DIN 51802 / 0 - 0 Corr. ° ISO 11007 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 102

    Lubcon Turmoplex 3 Addinol LM 3 EP Arcanol Multi 3 For motors of horizontal construction you can alternatively use greases with NLGI class 2. However, this reduces the lubrication interval by 20%. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 103

    The grease replacement intervals in these operating instructions or the regreasing intervals indicated on the plate apply to the following conditions: ● Normal load ● Operation at speeds in accordance with rating plate ● Low-vibration operation SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 104: Sealing The Rolling-contact Bearings ("increased Degree Of Protection" Option)

    The procedure is the same as that for lubricating grease. The sealing effect during operation is optimum as long as a small amount of relatively clean grease is forced out. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 105: Keeping The Cooling Air Flow Clean

    ● If dust or humidity have infiltrated the terminal box, this should be cleaned and dried (particularly the insulators). Check all the seals and sealing surfaces and address the cause of the leakiness. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 106: Corrective Maintenance

    Eyebolts in accordance with DIN 580 are unsuitable for suspending the rotor. The rotor can fall off. This can result in death, serious injury or material damage. Use lifting gear which is suitable for the rotor weight and direction of loading. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 107: Seal The Motor

    1. Secure the fan cowl against falling before you start working. 2. Loosen the fixing screws that secure the fan cowl on the enclosure. 3. Observe existing retaining components and retain them for the reassembly. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 108: External Fan Made Of Metal

    Air inlet nozzle ③ Two-pole machines are equipped with an air inlet nozzle . The spacing between external fan and air inlet nozzle must measure ≥ 2 mm evenly over the circumference. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 109: External Fan Made Of Plastic

    9.2.6 Internal fan The internal fan is located on the rotor inside the machine. If the internal fan is defective or must be replaced, please contact the Service Center (Page 137). SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 110: Roller-contact Bearings

    – Remove the end shield. Depending on the shaft height, roller bearing type and design, it is either a bearing head version or a bearing housing version. – Remove the locking ring from the shaft. 2. Pull off the roller bearing together with the grease slinger. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 111: Remove V Ring

    Before uninstalling the roller bearing, the labyrinth sealing ring must be removed. ③ The labyrinth sealing ring is fixed with three grub screws that are separably secured with adhesive such as Loctite 243. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 112: Assembling The Rolling-contact Bearings

    Procedure 1. Remove the required components and replace damaged components. 2. Remove any dirt from the components. Remove any grease and the remains of sealant or liquid threadlocker. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 113: Install The V Ring

    If present: V ring (Page 113) Labyrinth sealing ring (special design) (Page 115) 9.2.7.5 Install the V ring Requirement The roller bearing is already fitted. The V ring can be installed for the bearing seal. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 114: Installing The V Ring ("increased Degree Of Protection" Option)

    9.2.7.6 Installing the V ring ("Increased degree of protection" option) The grease chamber of the labyrinth sealing ring together with the V ring ensures compliance with degree of protection IP65. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 115: Installing The Labyrinth Sealing Ring

    1. Apply a soluble adhesive to the three set screws such as Loctite 243) and screw them partially into the labyrinth sealing ring. 2. Apply an corrosion protection paint to the shaft in the area of the labyrinth sealing ring. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 116: Image 9-7 Position The Set Screws For The Labyrinth Sealing Ring On The Outer Bearing Cover

    4. Locate the labyrinth sealing ring in position by screwing the set screws in. Check that the tips of the set screws engage with the keyway with a short axial movement. The correct axial position is obtained when the locating setscrews screwed into the keyway engage. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 117: Spare Parts

    You can use "Spares on Web" to determine the order numbers for motor spare parts quickly and easily. A short description of how to use "Spares on Web" is available on the Internet. Guide for Spares on Web (http://support.automation.siemens.com/WW/news/en/25248626). SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 118: Anti-condensation Heating

    The anti-condensation heater is mounted directly on the winding. The anti-condensation heater cannot be removed without causing damage to the winding. A new anti-condensation heater may only be installed by Siemens Service Center (Page 137) specialists. SIMOTICS TN Series N-compact 1LA8...

  • Page 119: Stator And Rotor

    10.00 Stator frame with laminated core and winding 8.00 Rotor, complete 10.50 Lifting lug 8.10 Shaft 10.84 Cover with seal 8.20 Rotor core with winding 20.00 Terminal box 8.30 Drive-end balancing ring SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 120: Ventilation

    Air inlet nozzle 4.84 Grease supply extension tube 12.35 Protective grille 11.04 External fan, unidirectional 12.70 Protective cover, optional for design IM V1 11.05 External fan, bidirectional 12.85 Fixing elements 11.62 Locking ring SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 121: Drive End Rolling-contact Bearings With Bearing Housing

    3.81 3.20 Outer bearing cover 3.82 Grease tube 3.30 Locking ring 5.00 End shield, design B3 3.35 Grease slinger 5.10 Flanged end shield 3.40 Deep-groove ball bearing (locating bearing) 5.67 Sealing plug SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 122: Drive End Rolling-contact Bearings Without Bearing Housing

    Grease nipple 3.16 Labyrinth ring (optional) 3.81 3.20 Outer bearing cover 3.82 Grease tube 3.30 Locking ring 5.00 End shield 3.35 Grease slinger 5.67 Sealing plugs 3.40 Deep-groove ball bearing (locating bearing) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 123: Roller Bearings, De - End Shield With Integrated Bearing Cover

    3.13 Protective ring 3.80 Grease nipple 3.16 Labyrinth ring (optional) 3.81 3.30 Locking ring 3.82 Grease tube 3.35 Grease slinger 5.00 End shield 3.40 Deep-groove ball bearing (locating bearing) 5.67 Sealing plugs SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 124: Non-drive End Rolling-contact Bearings With Bearing Housing

    V ring 4.60 Inner bearing cover 4.20 Outer bearing cover 4.81 4.30 Locking ring 4.82 Grease tube 4.35 Grease slinger 6.00 End shield 4.40 Deep-groove ball bearing 6.67 Sealing plugs 4.45 Compression spring SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 125: Non-drive End Rolling-contact Bearings Without Bearing Housing

    Compression spring 4.10 V ring 4.60 Inner bearing cover 4.20 Outer bearing cover 4.81 4.30 Locking ring 4.82 Grease tube 4.35 Grease slinger 6.00 End shield 4.40 Deep-groove ball bearing 6.67 Sealing plugs SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 126: Roller Bearings, Nde - End Shield With Integrated Bearing Cover

    Roller bearing cartridge (floating bearing) 4.60 Inner bearing cover 4.10 V ring 4.81 4.30 Locking ring 4.82 Grease tube 4.35 Grease slinger 6.00 End shield 4.40 Deep-groove ball bearing 6.67 Sealing plugs 4.45 Compression spring SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 127: Terminal Box Gt640

    Connecting plate with internal cable 20.38 Seal 22.40 Terminal link (two holes) The terminal box can only be ordered as one component. The maximum connection cross-section for the main circuit is 240 mm SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 128: Terminal Box 1xb1621

    Table 10-10 Terminal box 1XB1621 spare parts Part Description Part Description 20.00 Terminal box without cable entry comprising the following components: 20.20 Terminal box housing 21.41 Terminal supports 20.27 Mounting rail 21.61 Terminal strip for auxiliary circuit SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 129: Table 10-11 Additional Spare Parts

    20.66 Strain relief - lower part 20.61 Cable gland - upper part 20.68 Seal 20.62 Cable gland - lower part 20.70 Sealing insert for cable entry 20.65 Strain relief - upper part SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 130: Terminal Box 1xb1631

    Part Description 20.61 Cable gland - upper part 20.66 Strain relief - lower part 20.62 Cable gland - lower part 20.70 Sealing insert for cable entry 20.65 Strain relief - upper part SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 131: Terminal Box 1xb1634

    Mounting rail 20.66 Strain relief (lower part) 20.28 Seal 20.68 Seal 20.30 Cover 20.70 Sealing insert for cable entry 20.38 Seal 21.41 Terminal supports 20.60 Cable gland 21.61 Terminal strip for auxiliary circuit SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 132

    Spare parts 10.16 Terminal box 1XB1634 Part Description Part Description 20.61 Cable gland (upper part) 22.70 Fixing lug for PE conductor 20.62 Cable gland (lower part) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 133: Terminal Box 1xb9600

    Connecting plate with internal cable 20.38 Seal 21.41 Terminal supports 20.61 Cable gland (upper part) 21.61 Terminal strip for auxiliary circuit 20.62 Cable gland (lower part) 22.70 Fixing lug for PE conductor SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 134

    Spare parts 10.17 Terminal box 1XB9600 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 135: Disposal

    The machine is made up of heavy parts. These parts are liable to fall during dismantling. This can result in death, serious injury or material damage. Before you release any machine parts, secure them so that they cannot fall. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 136: Disposal Of Components

    ● Wooden packaging for sea transport consists of impregnated wood. Observe the local regulations. ● The foil used for water-proof packaging is an aluminum composite foil. It can be recycled thermally. Dirty foil must be disposed of via waste incineration. SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 137: Service And Support

    (www.siemens.com/yourcontact) Siemens Support for on the move You can obtain optimum support anywhere you go using the "Siemens Industry Online Support” app. The app is available for Apple iOS, Android and Windows Phone. SIMOTICS TN Series N-compact 1LA8...

  • Page 138

    Service and Support SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 139: Technical Data

    Table B-1 Tightening torques for bolted connections with a tolerance of ±10%. Case 1080 1700 2600 4200 1200 2000 3100 4700 7500 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 140

    Different tightening torques for electrical connections and bolted connections for parts with flat seals or insulating parts are specified in the relevant sections and drawings. See also Securing the rotor (Page 32) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 141: Quality Documents

    Quality documents You can find the quality documents here: https://support.industry.siemens.com/cs/ww/en/ps/13320/cert (https:// support.industry.siemens.com/cs/ww/en/ps/13320/cert) SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 142

    Quality documents SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 143: Index

    Equipotential bonding, 73 Centering flange, 56 Equipotential bonding conductor, 37, 78 Checks to be carried out prior to commissioning, 81 ESD guidelines, 18 Circuit, 63 Exceeding the tolerances, 29 Common-mode filters, 38, 79 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 144

    Faults, 92, 99 Noise emissions, 18, 28 Installation Initial inspection, 99 Installing the protective ring, 114 Insulated bearings, 24, 39 Onion sealing ring, 69 Insulated coupling, 40 Open winding design, 63 Operating mode, 27 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 145

    Standard flange, 56 attach, 106 Stator winding Rotor shipping brace, 32, 35, 46 Temperature monitoring, 76 Remove, 46 Stoppages, 89 Rotor winding, 23 Roller bearings, 90 Storage, 35 Storage location, 35 Strain relief, 70 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 146

    V ring, 110, 111, 114 Ventilation, 23 Vibration values, 29, 86 Voltage fluctuations, 29 Voltage via the converter, 78 Wall face, 45 Wall mounting, 45 Winding temperature Monitoring, 84 Set values, 84 Wire end ferrules, 72 SIMOTICS TN Series N-compact 1LA8 Operating Instructions 05/2016...

  • Page 148

    Siemens AG Process Industries and Drives Postfach 48 48 90026 NÜRNBERG GERMANY www.siemens.com/drives...

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