WEG W22Xdb C 315 User manual

W22Xdb –Flameproof Motors
Motors | Automation | Energy | Transmission & Distribution | Coatings
Rib-cooled
Tube-cooled
Installation, Operation and Maintenance
Manual

Dear Customer,
Thank you for acquiring a WEG motor. This is a product developed with levels of quality and efficiency that
ensure an excellent performance.
Since electric motors play an important role in comfort and wellbeing, they need to be identified and treated
as driving machines, whose features include certain handling procedures such as storage, installation, and
maintenance.
All efforts were employed in order to ensure that all of the information provided in this manual is accurate
regarding the configurations and applications of the motor.
Therefore, careful reading of this manual before proceeding with the motor installation, operation or
maintenance is highly recommended in order to ensure safe and continuous motor operation, ensuring its
safety and that of its installations. In case of any remaining doubts, please contact WEG.
Maintain this manual close to the motor at all times so it can be consulted whenever necessary.
W22Xdb - Rib-cooled
W22XdbT –Tube-cooled
www.weg.net/w22xdb
www.weg.net/w22xdb-tube
This manual is also applicable for BFGC4 line motors.
ATTENTION
Following the procedures provided in this manual is mandatory to maintain a valid
product warranty;
Motor installation, operation, and maintenance procedures must be performed only by
qualified personnel.
---- IMPORTANT ----
READ CAREFULLY THE INSTRUCTIONS INCLUDED IN THIS MANUAL IN ORDER TO
ENSURE A SAFE AND CONTINUOUS OPERATION OF THE EQUIPMENT
WEGeuro –Indústria Eléctrica, S.A.
Rua Engº Frederico Ulrich, Sector V
4470-605 MAIA - PORTUGAL
Phone: [phone] | Fax: [phone]
www.weg.net
13564560 v05 - 11/2019 - EN

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Table of Contents
1. GENERAL INFORMATION .................................................................................................................... 9
INTRODUCTION............................................................................................................................9
SAFETY INFORMATION...............................................................................................................9
2. GENERAL INSTRUCTIONS................................................................................................................. 11
MOTOR APPLICATION...............................................................................................................11
2.1.1. SAFETY WARNINGS IN THE MANUAL....................................................................................... 11
TRANSPORTATION....................................................................................................................11
RECEIVING INSPECTION ..........................................................................................................12
3. STORAGE............................................................................................................................................. 12
INDOOR STORAGE ....................................................................................................................12
OUTDOOR STORAGE ................................................................................................................12
VERTICAL MOTORS STORAGE................................................................................................13
OTHER CARES DURING STORAGE .........................................................................................13
INSULATION RESISTANCE........................................................................................................13
POLARIZATION INDEX...............................................................................................................14
PROLONGED STORAGE............................................................................................................14
3.7.1. INTRODUCTION........................................................................................................................... 14
3.7.2. GENERALITIES ............................................................................................................................ 14
3.7.3. STORAGE PLACE........................................................................................................................ 15
3.7.3.1 INDOOR STORAGE ........................................................................................................15
3.7.3.2 OUTDOOR STORAGE ....................................................................................................15
3.7.4. SPARE PARTS ............................................................................................................................. 15
3.7.5. SPACE HEATERS ........................................................................................................................ 15
3.7.6. INSULATION RESISTANCE......................................................................................................... 16
3.7.7. EXPOSED MACHINED SURFACES ............................................................................................ 16
3.7.8. FLAMEPROOF JOINTS................................................................................................................ 16
3.7.9. BEARINGS.................................................................................................................................... 16
3.7.9.1 ANTIFRICTION BEARINGS LUBRICATED BY GREASE ...............................................16
3.7.9.2 SLEEVE BEARINGS........................................................................................................16
3.7.10. CONNECTION BOX.................................................................................................................... 17
3.7.11. INSPECTIONS AND RECORDS DURING STORAGE............................................................... 17
3.7.12. PREPARATION FOR SERVICE AFTER LONG TERM STORAGE............................................ 17
3.7.12.1 CLEANING.....................................................................................................................17
3.7.12.2 BEARINGS LUBRICATION............................................................................................18
3.7.12.3 INSULATION RESISTANCE VERIFICATION................................................................18
3.7.12.4 OTHER ..........................................................................................................................18
3.7.13. MAINTENANCE PLAN FOR STORAGE..................................................................................... 19
4. HANDLING............................................................................................................................................ 20
HANDLING RIBBED COOLED MOTORS...................................................................................20
4.1.1. HORIZONTAL MOTORS............................................................................................................... 20
4.1.2. VERTICAL MOTORS.................................................................................................................... 20
HANDLING TUBE COOLED MOTORS.......................................................................................21
4.2.1. HORIZONTAL MOTORS............................................................................................................... 21
4.2.2. VERTICAL MOTORS.................................................................................................................... 21
4.2.3. VERTICAL TUBE COOLED MOTORS POSITIONING................................................................. 21
5. INSTALLATION .................................................................................................................................... 23
MECHANICAL ASPECTS............................................................................................................23
5.1.1. MOUNTING................................................................................................................................... 23

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5.1.2. FOUNDATIONS ............................................................................................................................ 23
5.1.3. TYPES OF BASES........................................................................................................................ 24
5.1.3.1 CONCRETE BASES........................................................................................................24
5.1.3.2 SLIDE RAILS ...................................................................................................................25
5.1.3.3 METALLIC BASES...........................................................................................................25
5.1.4. ALIGNMENT/LEVELLING............................................................................................................. 26
5.1.5. COUPLINGS................................................................................................................................. 26
5.1.5.1 DIRECT COUPLING........................................................................................................27
5.1.5.2 GEARBOX COUPLING....................................................................................................27
5.1.5.3 BELT AND PULLEY COUPLING.....................................................................................27
5.1.5.4 COUPLING ARRANGEMENT FOR SLEEVE BEARING - AXIAL CLEARANCE.............30
5.1.6. COOLING...................................................................................................................................... 31
5.1.7. VIBRATION / BALANCE ............................................................................................................... 31
5.1.8. SHAFT VIBRATION LIMITS.......................................................................................................... 31
5.1.9. AUTOMATIC LUBRICATORS....................................................................................................... 32
ELECTRICAL ASPECTS.............................................................................................................32
5.2.1. POWER SUPPLY.......................................................................................................................... 32
5.2.2. CONNECTIONS............................................................................................................................ 33
5.2.3. ROTATION DIRECTION............................................................................................................... 34
5.2.4. PROTECTIONS ............................................................................................................................ 35
5.2.4.1 WINDINGS PROTECTIONS............................................................................................35
5.2.4.2 BEARINGS PROTECTIONS............................................................................................35
5.2.5. ADJUSTMENT OF MOTOR PROTECTION DEVICES................................................................. 36
5.2.6. ELECTRIC CONNECTION CHECKING........................................................................................ 36
6. MECHANICAL INSTALLATION CHECKING ...................................................................................... 36
SPACE HEATERS.......................................................................................................................36
7. NOISE LEVEL....................................................................................................................................... 37
8. MAINTENANCE.................................................................................................................................... 37
CLEANLINESS.............................................................................................................................37
8.1.1. PARTIAL CLEANING.................................................................................................................... 37
8.1.2. COMPLETE CLEANING ............................................................................................................... 37
LUBRICATION.............................................................................................................................38
8.2.1. GREASE LUBRICATED BEARINGS ............................................................................................ 38
8.2.2. TYPE AND GREASE CHARACTERISTICS.................................................................................. 39
8.2.3. LUBRICATION INTERVALS ......................................................................................................... 39
8.2.4. LUBRICATION INTERVALS FOR HIGH TEMPERATURE........................................................... 41
8.2.5. QUALITY AND QUANTITY OF GREASE...................................................................................... 43
8.2.6. COMPATIBILITY........................................................................................................................... 43
8.2.7. LUBRICATING INSTRUCTIONS .................................................................................................. 44
8.2.8. BEARING LUBRICATION STEPS ................................................................................................ 44
8.2.9. AUTOMATIC LUBRICATION........................................................................................................ 45
8.2.9.1 REFILLING/REPLACING LUBRICATORS ......................................................................45
8.2.9.2 PROLONGED STORAGE................................................................................................45
8.2.10. SLEEVE BEARINGS................................................................................................................... 46
8.2.10.1 GENERAL INSTRUCTIONS..........................................................................................47
8.2.10.2 OIL TYPE AND CHARACTERISTICS............................................................................47
8.2.10.3 DISASSEMBLY OF THE SLEEVE BEARING SYSTEM (TYPE "EF") ...........................47
8.2.10.4 SLEEVE BEARING ASSEMBLY....................................................................................48
8.2.10.5 SETTING OF THERMAL PROTECTIONS (PT100).......................................................49
8.2.10.6 WATER COOLING SYSTEM.........................................................................................49
8.2.10.7 LUBRICATION...............................................................................................................49
8.2.10.8 SHAFT SEALS...............................................................................................................50
8.2.10.9 OPERATION..................................................................................................................50
AIR GAP CHECKING...................................................................................................................50
PARTIAL DISCHARGE MONITORING .......................................................................................50

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MOTORS WITH INTERNAL BEARING TEMPERATURE PROBES...........................................52
8.5.1. STANDARD SOLUTION ............................................................................................................... 52
8.5.2. OPTIONAL SOLUTION................................................................................................................. 52
POWER TERMINAL BOX ROTATION PROCEDURE................................................................53
TIGHTENING TORQUE FOR FLAMEPROOF ENCLOSURES BOLTS.....................................55
SPARE PARTS............................................................................................................................55
9. MAINTENANCE PLAN......................................................................................................................... 55
10. MOTOR ABNORMALITIES IN SERVICE............................................................................................. 58
COMMOM DAMAGE TO INDUCTION MOTORS.............................................................58
10.1.1. SHORT CIRCUIT AMONG TURNS............................................................................................. 58
10.1.2. DAMAGE CAUSED TO THE WINDING...................................................................................... 58
10.1.2.1 ONE PHASE OF THE BURNT WINDING......................................................................58
10.1.2.2 TWO PHASES OF THE BURNT WINDING...................................................................58
10.1.2.3 THREE PHASES OF THE BURNT WINDING...............................................................58
10.1.3. DAMAGE TO THE BEARINGS ................................................................................................... 59
10.1.4. SHAFT RUPTURE ...................................................................................................................... 59
10.1.5. DAMAGE DUE TO BADLY ADAPTED TRANSMISSION PARTS OR DEFECTIVE ALIGNMENT
OF THE MOTORS...................................................................................................................................... 59
TROUBLESHOOTING CHART .........................................................................................60
TROUBLESHOOTING CHART ABOUT BEARINGS........................................................62
11. WARRANTY TERMS............................................................................................................................ 63
LIABILITY...........................................................................................................................63

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1. GENERAL INFORMATION
INTRODUCTION
This Manual is intended to supply and clarify
important topics that must be followed accordingly -
including storage, operation and maintenance of
WEG motors used in explosive atmospheres.
Therefore, we recommend reading it carefully,
together with the Instructions Manual and all
specific documents (data sheet, general
arrangement drawing, connection diagrams,
curves, etc.) delivered with the motor, before
performing any installation service or before
operating the electric motor.
Once these WEG motors have been designed for
explosive atmospheres, all safety information
described in item 1.2 below should be followed
carefully.
SAFETY INFORMATION
ATTENTION
When any motor or equipment is
used out of the industrial area, it is
the enduser´s responsibility to
provide all safety and protection
information while installing the motor
(for example, to avoid that people
come close to the motor and others).
ATTENTION
The motors referenced in this manual
go thorough constant improvement
so the information contained here
may be changed without prior notice.
DANGER
During operation, such equipment
has energized or rotating parts that
may present high temperature.
Opened terminal boxes, unprotected
couplings or incorrect handling may
cause serious accidents to people
and/or material damage.
The people responsible for
installation safety should ascertain
that:
- Only qualified personnel perform
installation and operation services on
the equipment;
- This personnel must carry this
Manual along with other documents
supplied with the motor, and the
works should be performed in
accordance with specific standards
and documentation for this product;
- Unqualified personnel should never
perform any work on electric
equipment;
- If installation and safety instructions
are not followed accordingly,
warranty may be void.
ATTENTION
QUALIFIED PERSONNEL are those
people who based on their
education, experience, knowledge of
standards and service conditions
required are duly authorized to
perform any service on the motor.
Furthermore, these people should
know how to carry out first aid
procedures.
If further doubts exists about this,
especially in reference to specific
product information, WEG is willing
to provide such information via its
network of authorized service agents
and/or representatives.

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ATTENTION
We recommend that all services
related to installation plan as well as
all transportation activities, storage,
assembly, installation, start-up,
maintenance and repairs should be
carried out only by qualified
personnel. Special attention should
be paid to:
- Technical data referred to
allowed applications (assembly
conditions, connections and
installation conditions), included in
this Manual, Purchase Order
documentation, operation
instructions, manuals and other
documents;
- Instructions and specific
conditions for installation on site;
- The use of proper tools and
equipment: for handling and
transportation;
- That all protection devices of
each component are removed before
installation.
Additionally, all individual parts must
be stored in vibration-free rooms to
avoid sudden faillure, knocking or
damage to parts and causing injury
to people.
For practical reasons, it is not
possible to include in this Manual
detailed information that covers all
constructive variables, nor covering
all possible assembly, operation or
maintenance alternatives.
For this reason, the present Manual
only includes required information
that allow qualified and trained
personnel to carry out the work.
In order to allow WEG to provide a prompt service
when resquested, within technical standards, the
motor serial number that is available on the
identification nameplate should be supplied.
ATTENTION
If this Installation and Maintenance
Manual gets lost, WEG may provide
an additional sample. WEG is
prepared to solve any further doubt
you may require. In this case, motor
serial number should be also
supplied.
Aiming a satisfactory motor performance, we
suggest to make the installation plan,
commissioning, start up and maintenance in
conjunction with WEG Service Department people.
ATTENTION
To prevent from eventual motor
operating problems, we recommend
that all maintenance and revision
services described in this Storage,
Installation, Operation and
Maintenance Manual be carried out
by duly trained personnel. Changes
of rated operating characteristics,
such as excess demand of energy,
increase in temperature, noise level,
abnormal smell and tripping of
protections are the first signs of any
abnormal occurrence. In this case, to
avoid material damage or injury to
people, maintenance people should
be immediately informed about such
circumstances.
DANGER
In case of doubt, switch off the motor
immediately!
EX ATMOSPHERE INFORMATION
We recommend that all personnel
responsible for the application of
electric motors in hazardous areas
have been duly trained for such
purpose.
ATTENTION
Safety and start up instructions meet
the followind standards:
IEC 60034-1 Electric Rotating
Machines
IEC 60079-0 –General Standard for
Explosion Proof Equipment
IEC 60079-1 –Standard for Ex "d"
Protection
IEC 60079-7 –Standard for Ex "e"
Protection
IEC 60079-31 –Standard for Ex "tb"
Protection
IEC 60079-14 –Electrical
installations design, selection and
erection in explosive atmospheres.
IEC 60079-17 –Electrical
installations inspection and
maintenance in explosive
atmospheres.