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Siemens 1LA2, Operating And Maintenance Manual

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Installation . Operation . 
Maintenance Instructions

!

 WARNING

Supply Voltage is hazardous and can 

cause Electric Shock and burns. 

Disconnect Power before proceeding with 

any work on this equipment.

Operating Instruction and  
Maintenance Manual

Three-phase induction motor Type 1SE0/1LA2
63-132 frame sizes

IE Motors

Summary of Contents for 1LA2

Page 1: ...ING Supply Voltage is hazardous and can cause Electric Shock and burns Disconnect Power before proceeding with any work on this equipment Operating Instruction and Maintenance Manual Three phase induction motor Type 1SE0 1LA2 63 132 frame sizes IE Motors ...

Page 2: ...ication 10 3 7 Balancing Transmission elements 10 3 8 Commissioning 10 4 Electromagnetic Compatibility 12 5 Maintenance 12 5 1 General 13 5 2 Dismantling 13 5 2 1 Pressing on and pulling off drive elements 13 5 2 2 Fans 13 5 2 3 Removal of bearing 14 5 3 Reassembly 14 6 Spare Parts 15 Applicable Standards 15 7 Motor Troubleshooting Chart 16 Fig 1 Exploded view for Frame Size upto 132 18 Fig 2 Pres...

Page 3: ...e collected as hazardous waste and sent to registered recyclers approved by the respective State Pollution Control Board Qualified persons Only qualified persons who have carefully read and understood the content of this documentation should be entrusted with the commissioning and operation of machines equipment or systems Qualified persons as far as the safety instructions given in this documenta...

Page 4: ...ts that are at a dangerous voltage Before any work is carried out it must be ensured that the equipment is isolated from the supply Only qualified persons may work with this equipment These persons must be familiar with all instructions and precautions to be taken specified in this documentation that are relevant for safety Safe and satisfactory operation of this motor presumes satisfactory transp...

Page 5: ...specific erection and safety regulations are observed and personal protective gear is used Work on these machines or in the vicinity of these machines by unqualified persons is prohibited These instructions therefore only contain the information which is necessary for the motors to be used by qualified persons in accordance with their intended purpose Note We recommend engaging the support and ser...

Page 6: ...immediately notified in order to prevent disturbances that could either directly or indirectly lead to severe personal injury or substantial material damage If in doubt power down the motor immediately in conformance with the system specific safety requirements Caution The surfaces of the machines can reach high temperatures which can lead to burns in case of contact Appropriate measures to avoid ...

Page 7: ... motor can be used in IM B5 V1 and V3 constructions Face mounted motors can be used in IMB14 IMV18 and IMV19 constructions For installation of foot mounted motors on a wall adequate support should be provided to the mounting feet The motor must be securely installed to a rigid foundation or mounting surface to minimize vibration and maintain alignment between the motor and shaft load Failure to pr...

Page 8: ...splacement between these two Shafts can be aligned perfectly by keeping metal shims under the foot of the motor The center lines of the shafts should be parallel and the parallel displacement between the two center lines should not be more than 0 03mm The clearance between the couplings halves measured at four peripheral points must also be within 0 03mm If belt drive is used install the machine i...

Page 9: ...ble residue All terminal screws and bolts are firmly tightened Minimum air clearance 10mm upto 500V 14mm upto 1000V is maintained Unused cable entries are sealed off with the plugging elements firmly screwed in All sealing surfaces have adequate contact In humid environments motors which are not in used should be connected to Anti Condensation Heaters to prevent condensation of moisture In case th...

Page 10: ...equivalent The double sealed ZZ bearings are pre lubricated for life Under normal operating condition these offer a service life of 20 000 continuous working hours and must be replaced after such period or 3 years whichever is earlier 3 7 Balancing transmission elements A suitable device should always be used for fitting and removing the transmission elements coupling halves pulleys pinions As sta...

Page 11: ...ductors are properly installed Any auxiliaries that may be fitted brakes speedometer separate fan are in working order Touch protection guards are installed around moving and live parts The maximum speed nmax is not exceeded especially for motors with variable speed drive NOTE The maximum speed nmax is the highest operating speed permitted for short periods It should be kept in mind that motor noi...

Page 12: ...recommend the use of shielded supply cables the shielding is most effective if it is connected over a large area right up to the motor terminal box with a metal cable gland In the case of motors with built in detectors e g PTC thermisters interference voltages can occur in the detector cables due to converter related reasons Electromagnetic interference immunity The requirements of immunity to int...

Page 13: ...ouble free service Before starting the maintenance work make sure that the supply is disconnected These motors are provided closely pitched ribs for effective cooling of the motor These ribs should be cleaned at regular intervals either by oil free compressed air or by scraping depending on the level of contamination The inside of the motor should be cleaned using dry compressed air during normal ...

Page 14: ...to be used is fascilitated by heating them with gas or welding torch 5 3 Re assembly The motor must be assembled in a dust free dry and clean location As the motor conforms to the type of protection IP55 all machined mating surfaces are provided with a thin even coat of bearing grease Provide a fresh coat of this grease at the time of re assembly Unmatched surfaces are provided with rubber gaskets...

Page 15: ...egree of protection IP56 see rating plate the joint between the motor frame and the endshields are sealed with rubber O rings It should be ensured that these are not damaged 6 Spare Parts When ordering spare parts please indicate the correct Motor Type Serial Number as shown on the rating plate and also the correct part description This will ensure speedy and correct delivery of spare parts Please...

Page 16: ...r tap Rotor defective Look for broken rings Short circuit to earth Check with Megger Fault in starter or star delta switch Check contacts connections 3 Motor runs then stops down Power failure Check for loose connections to line fuses control gear Over load Examine overload trips see that they are set at approx 150 of full load current IS 7816 Guide for testing insulation resistance of rotating ma...

Page 17: ...cycle not in accordance with the name plate Run the motor on duty for which it is specified High or low voltage Check voltmeter reading Foreign material in air gap Dismantle remove obstruction Rotor rubs stator bore Recondition the rotor Replace worn out bearings 8 Motor vibrates after connections are made Motor misaligned Realign Weak foundation Provide strong base Coupling out of balance Balance...

Page 18: ... 10 15 3 00 6 00 11 00 12 01 12 70 3 00 Rolling contact bearing assembly fixed bearing 4 00 Rolling contact bearing assembly floating bearing 5 00 Endshield drive end 5 10 Flange endshield 6 00 Endshield non drive end 8 10 Shaft 8 20 Cage rotor 10 00 Stator housing with integral feet and wound core packet 10 15 Earthing clamp 10 50 Lifting eyebolt 11 00 External fan 12 01 Fan Cowl 20 00 Terminal b...

Page 19: ...19 Fig 2 Pressing on and pulling off drive elements Changing bearings ...

Page 20: ...20 Fig 3 Terminal box for frame sizes 63 71 80 90S and 90L Type 1 x B0 096 Section A B ...

Page 21: ...21 Fig 4 Terminal box for frame sizes 100L 112M 132S and 132M Type 1 x B0 132 Section A B View without terminal box cover All dimensions in mm ...

Page 22: ...rk in India Customer Care Desk Toll Free Number 1800 20 90987 Toll Free From BSNL MTNL 1800 22 0987 Phone 022 2760 0150 Fax 022 2762 3722 Email ics india siemens com East 91 9830256240 West 91 9820507909 North 91 9810205655 ...

Page 23: ...ey 9910991211 North Chandigarh Abhishek Pandey 9910991211 North Jaipur Abhishek Pandey 9910991211 South 1 Chennai Praveen Pai 9840323334 South 1 Coimbatore Praveen Pai 9840323334 South 2 Bangalore Prakash Hegde 9632506222 South 2 Hyderabad Prakash Hegde 9632506222 For Service Support Siemens Customer Care Desk Toll Free From BSNL MTNL 1800 22 0987 Phone 022 2760 0150 Fax 022 2762 3722 Email ics in...

Page 24: ...emens com Disposal Siemens Products are environment friendly which predominantly consist of recyclable materials For disposal we recommend disassembling and separation into following materials METALS Segregate into Ferrous Non Ferrous types for recycling through authorised dealer PLASTICS Segregate as per material type for recycling through authorised dealer Because of the long lifetime of Siemens...

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