Siemens 1SE0, 1LA2 Operating And Maintenance Manual
s
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
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Table of Content
Pg. No.
1. Safety information ............................................................................................ 3
1.1 Denitions, warning information ...............................................................3
1.2 Safety and application information ............................................................ 5
2. Description .......................................................................................................5
2.1 General ..................................................................................................... 5
2.2 Terminal Box ............................................................................................. 5
3. Operation ....................................................................................................... 6
3.1 Inspection, storage and transport .............................................................. 6
3.2 Mounting .................................................................................................. 7
3.3 Installation ................................................................................................ 7
3.4 Electrical connection ................................................................................. 8
3.4.1 Earthing ..........................................................................................9
3.5 Checking the insulation resistance ............................................................. 9
3.6 Bearing and lubrication............................................................................ 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 Pressing on and pulling off drive elements, changing bearings ................ 19
Fig.3 Terminal Box for 63, 71, 80, 90S and 90L frames .................................... 20
Fig.4 Terminal Box for 100L, 112M, 132S and 132M frames ............................. 21
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1 Safety information
1.1 Denitions, warning information
General Note
Warning
The data and recommendations
specied in all the instructions supplied,
and in all other related instructions,
must always be observed in order to
avoid hazardous situations and the
risk of possible injury or damage.
Furthermore, the pertinent national,
local and plant-specic regulations
and requirements should be kept in
mind!
Special designs and other versions
may vary in technical details! If
in doubt, be sure to contact the
manufacturer, quoting the type
designation and serial number, or
have maintenance work done by one of
SIEMENS Service Centers.
Warning
The disposal of waste generated during
operation & maintenance of the motor
should be done as per the applicable
local environmental legislations.
• Waste grease & greased cloth to be
collected as hazardous waste and
sent to hazardous waste disposal
facility for incineration.
• Waste copper windings to be
collected as hazardous waste and
sent to registered recyclers approved
by the respective State Pollution
Control Board.
Qualied persons
Only qualied 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. Qualied
persons as far as the safety instructions
given in this documentation are concerned
are those who have the necessary
authorization to commission, earth and
identify equipment, systems and circuits
in accordance with the relevant safety
standards.
Safety guidelines
This documentation contains instructions,
which must be followed closely in order to
ensure personal safety and avoid damage
to the equipment and machines.
Personal safety instructions are highlighted
in the manual by a warning triangle,
while damage avoidance instructions are
marked as follows depending on the level
of danger:
Danger
Danger means that death or grievous
injury will occur if the appropriate
precautions are not taken.
Warning
Warning means that death or grievous
injury may occur if the appropriate
precautions are not taken.
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Caution
Caution with a warning triangle means
that minor personal injury may occur
if the appropriate precautions are not
taken.
Caution
Caution without a warning triangle means
that damage to property may occur if the
appropriate precautions are not taken.
Notice
Notice means that an undesirable result
or state might occur if the relevant
instructions are not followed.
Note
Note draws particular attention to an
important item of information about the
product, its use or the corresponding
section of the documentation, which could
be useful to the user or operator.
Proper usage
Please pay close attention to the following:
Warning
The electrical equipment contains
components 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 qualied persons may work with
this equipment.
These persons must be familiar with all
instructions and precautions to be taken
/ specied in this documentation that
are relevant for safety.
Safe and satisfactory operation of
this motor presumes satisfactory
transport, proper storage, installation
and assembly and careful subsequent
operation and maintenance.
This motor may only be used for the
applications specied in the catalog
and the technical description or for
which it is seleteced, and only in
conjunction with third-party devices
and components recommended and/or
approved by SIEMENS.
Failing to adhere to these instructions
may result in severe injury and/or
damage to property.
National safety regulations must be
closely observed.
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1.2 Safety and application information
The safe use of electrical machines
Danger
These electrical machines are designed
for use in industrial power systems.
Rotating or live and uninsulated parts
pose a danger.
There is consequently a risk of
fatal or severe personal injury or
substantial damage to property if the
necessary covers are removed without
authorization or if the equipment
is handled improperly, operated
incorrectly or maintained inadequately.
If the motors are used outside industrial
areas, the installation site must be
safeguarded against unauthorized
access by means of suitable protection
facilities (e.g. fencing) and appropriate
warning signs.
The persons responsible for the safety
of the system are under an obligation to
ensure that:
• The basic planning work for the system
and all work relating to transportation,
assembly, installation, commissioning,
maintenance and repairs are carried out
by qualied persons and checked by
responsible, suitably skilled persons.
• These instructions and the motor
documentation are made available at all
times while work is in progress.
• The technical data and specications
relating to the permissible installation,
connection, ambient and operating
conditions are taken into account at all
times.
• The system-specic erection and safety
regulations are observed and personal
protective gear is used.
• Work on these machines, or in
the vicinity of these machines, by
unqualied persons is prohibited.
These instructions therefore only contain
the information, which is necessary for the
motors to be used by qualied persons in
accordance with their intended purpose.
Note
We recommend engaging the support
and services of your local SIEMENS service
center for all planning, installation,
commissioning and maintenance work.
2 Description
2.1 General
The Champion series motors are three
phase cage induction motors, totally
enclosed fan cooled (TEFC) type for low
voltage supply. General-purpose motors
type 1SE0/1LA2 conform to IS:12615. The
motors comply with the type of protection
IP55 in accordance with IS 4691/IS/IEC 60034-5. The degree of protection of the
motor is specied on the rating plate.
IMB3 is the standard mode of construction.
Other constructions are given on customer
request.
Unless otherwise specied, the rated
outputs apply to continuous duty (S1) at a
frequency of 50 Hz, an ambient temperature
between 0°C and 50°C and site altitude not
exceeding 1000m above mean sea level.
2.2 Terminal box
The terminal box conforms to type of
protection IP55 in accordance with IS:4691/
IS/IEC - 60034-5.
For foot-mounted motors, the terminal box
is provided on the top with cable entry from
RHS (as seen from drive end) as a standard
feature. If specically ordered, terminal box
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position on the right or the left-hand side
(when viewed from the drive end) can be
supplied for frame size 90 and above.
In order to provide for different directions
for cable entry, the orientation of the
terminal box can be altered in steps of 90°.
In case of motor provided with Brake, the
possibility of terminal box rotation in steps
of 90° to be checked physically.
3 Operation
Warning
Before starting any work on the
machine, be sure to isolate it from
the power supply.
Warning
All covers which are designed to
prevent active or rotating parts from
being touched, or which are necessary
to ensure correct air guidance and thus
effective cooling, must not be opened
during operation.
All deviations from normal operation
(higher power consumption,
temperature or vibration level,
unusual noises or odours, tripped
monitoring devices, etc.) are
indications that the motor is no longer
functioning correctly. In such cases,
the maintenance technician must be
immediately notied 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-specic 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 accidental contact
must be taken.
3.1 Inspection, Storage & Transport
Warning
The motors may only be transported
and hoisted in a position corresponding
to their type of construction (i.e.
horizontal construction types in
horizontal position and vertical
construction types in vertical position).
The motors may only be hoisted using
the lifting eyebolt(s) provided on the
stator housing. Use appropriate rope
guidance or spreading equipment (for
weight see rating plate or technical
data).
Warning
For lifting assembled machine
sets (such as built-on gearboxes,
fan units), always use the lifting
eyebolt(s) or lifting pegs provided on
both the units! Machine sets should
not be lifted by suspending the
individual machines! Check the lifting
capacity of the hoist!
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Warning
Only the intended openings, eyebolts
and lifting pin on the base plates may
be used for transporting motor sets.
Always pay attention to the carrying
capacity of the lifting device. Motor sets
must not be lifted by attachment to the
individual motors.
NOTE: The motors should not be lifted
using the centre holes on the shaft DE and
NDE, because the weight of the motor
shall harm the bearing and reduce its
performance and operational life.
Check the packing of the motor on arrival
and in case any damage is observed, please
report to the nearest Siemens ofce.
Make sure that the right type of motor as
ordered has arrived. The motor nameplate
provides relevant information.
If the motor is not installed immediately, it
should be stored in a dry and vibration free
room.
Caution
(Environmental Protection)
Disposal of packing material: On
unpacking the motors, the packing
material shall be disposed as per the
Local / Statutory requirements.
Special attention should be given to
Polythene bags, thermocole packing
and nylon straps etc., which are not
biodegradable.
3.2 Mounting
All standard motors are suitable for
horizontal as well as vertical mounting. i.e.
Standard foot mounted motors can be used
in IM-B3, B6, B7, B8, V5, V6 constructions
or ange-mounted 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 provide
a proper mounting surface may cause
vibration, misalignment and bearing
damage.
After installation is complete and
accurate alignment of the motor and
load is accomplished, the base should be
grouted to the foundation to maintain
this alignment. All motors which have
a shaft extension pointing upwards (V6
construction) must have a means (provided
by the user) of preventing the ingress of
dust and of liquids along the shaft.
3.3 Installation
After installation, screwed-in lifting
eyebolt(s) should either be removed or
tightened down.
Check the free running of the rotor by
rotating the shaft by hand.
The shaft extension, face and spigot of
the ange of the motor are coated with
an anticorrosion agent. To remove this
coating use kerosene / thinner. Do not use
sandpaper or scraper.
Before mounting the motor, see that the
motor feet are properly cleaned.
The transmission elements to be tted to
the motor should be dynamically balanced.
Please note that the rotors of the motors
are dynamically balanced with half key
inserted in the shaft extension of the
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motor. Preferably tolerance of the bore
of pulley/coupling/pinion should be H7.
Transmission elements must be tted and
removed only by means of suitable tool.
Refer g.2. Transmission elements should
never be hammered as this will damage
the bearings.
Caution
The keys are only secured against
falling-out during transport. If the motor
has two shaft ends, and a power takeoff element is only tted to one end,
steps must be taken to prevent the key
at the other end from being slung out.
Install the motor in such a manner that the
cooling air has free access and can escape
unobstructed. Discharged air or hot air
from neighboring equipment, must not be
sucked in again. Clean the entire path of air
over the motor (between ribs and air inlet
in fan cowl) at regular intervals to remove
any foreign deposits, preferably by means
of compressed air.
For foot mounted motors to be xed on the
wall a support should be provided for the
mounting feet from below.
In the case of motors with shaft end
facing upwards or downwards, measures
must be taken (by the user) to ensure that
no water or dust can penetrate into the
upper bearing.
Motors that are directly coupled should
be carefully & correctly aligned. The axes
of the driven machine shaft and motor
shaft should be in a straight line and
there should be no angular displacement
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 centerlines 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 in
such a manner that it can be shifted on its
base (e.g. on slide rails) to obtain correct
belt tension. Excessive belt tension may
result in damage to the bearing and /or
shaft. For permissible radial loads on shaft
extension and recommended pulley sizes
refer the Siemens catalog or contact our
ofce.
Caution
Excessive belt tension may result in
damage to the shaft / bearings; for
permissible values, see catalog or
enquire.
Due attention should be given to the
measures necessary to prevent accidental
touching of rotating parts (couplings,
pulleys, etc.)
Quiet running
Stable foundations or mounting conditions,
exact alignment of the motors and a
well-balanced transmission element are
essential for quiet vibration-free running. If
necessary, shims should be inserted under
the motor feet to prevent strain.
3.4 Electrical connection
Examine the rating plate data and ensure
that it matches with the power circuit to
which the motor is to be connected. Check
to see that system voltage and frequency
agree with the data given on the rating
plate. Motors up to 1.5kW are connected in
star & above 1.5kW are connected in delta.
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