Related Manuals for WEG MAA
Summary of Contents for WEG MAA
- Page 1 Low and high voltage three phase induction motors M line - Slip ring rotor Vertical Liftable 2016 Installation, Operation and Maintenance Manual...
- Page 3 Installation, Operation and Maintenance Manual Models: MAA, MAP, MAD, MAT, MAV, MAF, MAR, MAI, MAW and MAL Document Number: 16319709 Language: English Revision: 03 June 2024...
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Page 5: Dear Customer
Dear Customer, Thank you for purchasing a WEG motor. Our products are developed with the highest standards of quality and efficiency which ensures outstanding performance. Since electric motors play a major role in the comfort and well-being of mankind, it must be... -
Page 7: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ......................11 SAFETY WARNINGS IN THE MANUAL ..................11 GENERAL INSTRUCTIONS ..................12 QUALIFIED PERSONNEL ......................12 SAFETY INSTRUCTIONS ......................12 STANDARDS ..........................12 ENVIRONMENTAL CONDITIONS .................... - Page 8 4.5.1.2 Alarm and trip temperatures ....................23 4.5.1.3 Temperature and ohmic resistance of the PT100 thermoresistance ......... 24 4.5.1.4 Space heater ........................24 4.5.2 Water leak sensor ..........................24 COOLING ............................24 ...
- Page 9 6.2.5 Remote motorized mode activation ...................... 40 COMMISSIONING OF THE CONTROL SYSTEM CONNECTED TO THE USER SYSTEM .... 41 6.3.1 Initial checks ............................41 6.3.2 Motor starting simulation ........................41 6.3.3 Motor shutdown simulation ........................
- Page 10 8.12.4.3 Cooling by water circulation ....................54 8.12.4.4 Oil change......................... 54 8.12.4.5 Sealing..........................55 8.12.4.6 Sleeve bearing operation ....................55 8.12.4.7 Sleeve bearing maintenance ..................... 55 8.12.4.8 Bearing disassembly and assembly ..................
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Page 11: Introduction
If any additional explanation about motors with major special features is necessary, consult WEG. All procedures and standards contained in this manual must be observed in order to ensure proper operation of the motor and the safety of the personnel involved in its operation. -
Page 12: General Instructions
2 GENERAL INSTRUCTIONS All the personnel involved with the assembly, operation or maintenance of electrical installations must be permanently informed and updated on the standards and safety instructions that guide the job and are advised to strictly comply with them. Before beginning any job, the person in charge must make sure that all points have been duly observed and warn the respective personnel about the danger inherent to the task to be performed. -
Page 13: Operating Conditions
2.5 OPERATING CONDITIONS In order for the product warranty to be valid, the motor must be operated according to nominal data indicated on its nameplate, observing all applicable standards and information contained in this manual. 2.6 VOLTAGE AND FREQUENCY It is very important to ensure a proper power supply for the motor. -
Page 14: Receiving, Handling And Storage
The lifting lugs on the heat exchanger, the carrier, the insurer and WEG. The non- end shields, bearings, radiator, terminal communication of this damage will void the box, etc. are designed to handle these warranty. -
Page 15: Storage
If any of these requirements is not met in the storage external agents, such as temperature variations, site, WEG suggests that additional protections be added moisture, aggressive agents, etc. to the motor package during the storage period, as The empty spaces inside the motor –... -
Page 16: Outdoor Storage
3.3.2.1.2 Outdoor storage 3.3.3.3 Exposed machined surfaces All exposed machined surfaces (e.g., shaft end and ATTENTION flanges) are protected at the factory with a temporary protective agent (rust inhibitor). Outdoor storage of the motor is not This protection coating must be reapplied at least every recommended. -
Page 17: Sleeve Bearing
3.3.3.5.3 Sleeve bearing 3.3.3.6 Brushes Depending on the machine mounting position and the When the motor is stored for more than two months, the lubrication type, the machine can be transported with or brushes must be lifted and removed from their holder in without oil in the bearings. -
Page 18: Cleanliness And Conservation Of The Motor During Storage
3.3.3.11 Predictive / preventive maintenance WEG recommends that, every 3 years of storage, the stored motor be sent to a WEG Authorized Repair Shop or to WEG own factory, in order to perform a complete predictive maintenance. The complete predictive maintenance procedure... -
Page 19: Maintenance Plan During Storage
3.3.3.12 Maintenance plan during storage During the storage period, the motor maintenance must be performed and recorded according to the plan described in Table3.1. Table3.1: Storage plan Before Monthly Notes months months years start-up STORAGE LOCATION Inspect the cleanliness conditions Inspect the humidity and temperature conditions Inspect for insect infestation signs... -
Page 20: Preparation For Commissioning
Reassemble the sleeve bearings and carry out lubrication. Contact WEG to perform this procedure. 3.3.4.3 Bearing lubrication Use the lubricant specified for bearing lubrication. Information on the bearings and lubricants are indicated on the bearing nameplates, and the lubrication must be done as described in section 8.12 of this manual, always... -
Page 21: Installation
In order to operate the motor in the direction opposite to the specified, consult WEG. 4.4 INSULATION RESISTANCE Figure 4.1: Adhesive label It is imperative that before starting the motor this device is 4.4.1... -
Page 22: General Considerations
4.4.2 General considerations If the total winding measurement presents a value below the recommended, the neutral connections must be When the motor is not immediately put into operation, it opened and the insulation resistance of each phase must be protected against moisture, high temperatures, must be measured separately. -
Page 23: Polarization Index
1.25 for motors with service factor equal to or above The motor protection devices are listed in 1.15; the WEG drawing – Wiring diagram. 1.15 for motors with service factor equal to 1.0. Not using these devices is the sole... -
Page 24: Temperature And Ohmic Resistance Of The Pt100 Thermoresistance
4.5.1.3 Temperature and ohmic resistance of the PT100 thermoresistance Table 4.5 shows the temperature as a function of the ohmic resistance measured across PT100 RTDs. Formula: - 100 = C 0.386 Table 4.5: Temperature X Resistance (Pt100) º C 100.00 100.39 100.78... -
Page 25: Radiators For Application With Seawater
Figure 4.7: Radiator with sacrificial anodes In order to operate the motor in the rotation direction opposite to the specified, NOTE consult WEG. The type, quantity and position of the sacrificial anodes may vary according to ATTENTION the application. -
Page 26: Connection Diagrams
4.7.2 Connection diagrams 4.7.2.1 Connection diagrams according to IEC60034-8 The following connection diagrams show the terminal identification in the terminal box and the possible connections for the motors. 4.7.2.1.1 Stator connection diagrams 3 TERMINALS 6 TERMINALS 6 TERMINALS - DAHLANDER Δ... -
Page 27: Connection Diagrams According To Nema Mg1
Motors with a single rotation direction, as indicated on the nameplate and on sign plate affixed to the frame, have unidirectional fan and must be operated only in the specified rotation direction. In order to invert the rotation direction of unidirectional motors, consult WEG. 4.7.2.4 Accessory connection diagrams For the correct installation of the accessories, refer to the drawing in the specific CONNECTION DIAGRAM of the motor. -
Page 28: Motorized Brush Holder Connection Diagram
4.7.2.5 Motorized brush holder connection diagram The following connection diagrams show the terminals in the terminal box and the connections of the motorized brush lifting system for wound-rotor motors equipped with this device. 4.7.2.5.1 Condition for starting with lowered brushes and non-short-circuited slip rings Accessory terminal box Signaling Control... -
Page 29: Condition For Operation With Lifted Brushes And Short-Circuited Slip Rings
4.7.2.5.2 Condition for operation with lifted brushes and short-circuited slip rings Accessory terminal box Control Signaling Thermostat Motorized Electromechanical actuator Manual Lifted brushes 4ZE Lowered brushes 3ZE Lifted brushes 2ZE Lowered brushes Brushes lifted and slip rings short-circuited Position after the start of the main motor (motor operating under normal conditions). -
Page 30: Motorized Brush Holder Operation Logic
4.7.2.5.3 Motorized brush holder operation ATTENTION logic 2ZE, 4ZE, 1ZE and 3ZE are signaling MOTORIZED OPERATION: switches indicating if the brushes are 1. Condition for starting with lowered brushes and lowered of lifted, and, therefore, must not be non-short-circuited slip rings used to command (turn on/off) the In order to ensure the brushes are lowered, and the slip electromechanical actuator. -
Page 31: Motor With Solid Shaft And Flange
NOTES 4.8.7 Alignment When WEG supplies the anchor plate for fastening and aligning the motor, the The motor must be correctly aligned with the driven dimensional and installation details of the machine. -
Page 32: Hollow Shaft Motor Alignment
The alignment must be done according to the coupling Figure 4.11 shows the angular misalignment and a manufacturer recommendations. practical form to measure it. The motor and driven machine shafts must be aligned in The measurement is done in four points 90° away from the axial and radial directions, as shown in Figure 4.10 and each other, with the two half-couplings rotating together in Figure 4.11. -
Page 33: Doweling
The user is responsible for the motor prevent slippage during operation. installation (unless otherwise specified by commercial agreement). WEG is not liable for damages to the motor, NOTE associated equipment and installation Belts too tensioned increase the load on the... -
Page 34: Coupling For Hollow Shaft Motors
4.8.10.4 Coupling for hollow shaft motors Table4.7: Description of the controller digital inputs Input Element Description Notes Vertical hollow shaft motors are generally designed to Arm 1 lowered drive deep water pumps or turbine pumps. The type of Set of signals for coupling is specified by the manufacturer of the pump Arm 2 lowered indication of... -
Page 35: Control System Automation Logic
NOTES The software in the liftable brush holder The logic for activation the motor circuit control system was homologated by WEG. breaker is the responsibility of the user. Any change made to the system hardware Following, is the description of the... -
Page 36: Manual Mode
4.10.3.3 Manual mode The manual system activation is performed by turning the steering wheel, as shown in Figure 4.17. This maneuver can be used when the power supply circuit of the gear motor is inoperative. In this condition, to maintain the monitoring of the sensors in the CLIC controller, the Q2 and Q3 circuit breaker must be kept ON. -
Page 37: Starting
5 STARTING 5.1 STARTING WITH RHEOSTAT 5.2.2 After starting When the motor reaches its rated speed, the slip rings The starting of wound-rotor motor must be performed must be short-circuited and the brushes lifted through with an external rheostat connected to the rotor circuit the drive of the electromechanical actuator (1), which through the set of brushes and slip rings. -
Page 38: Manual Operation
In order to return to the motorized system, the electromechanical actuator motor must be activated. If there are any questions regarding the operation of the electromechanical actuator, consult WEG Authorized Service. l Installation, operation and maintenance manual 16319709... -
Page 39: Commissioning
6 COMMISSIONING When the motor is started for the first time or after a prolonged standstill, several aspects must be considered besides the regular operation procedures. ATTENTION Avoid any contact with electric circuits; Even low-voltage circuits may be life threatening; ... -
Page 40: Local Motorized Mode Activation
6.2.4 Local motorized mode activation To simulate its activation, it is necessary to temporarily connect two selectors on the XP10 ruler to simulate the "Machine Circuit Breaker" (BR1) and "Externa Rheostat NOTE short-circuit" (BR2) signals. Turn ON all circuit breakers in the control system and wait To activate the system in local motorized for the fully lowering of the brushes automatically. -
Page 41: Commissioning Of The Control System Connected To The User System
6.3 COMMISSIONING OF THE 6.3.3 Motor shutdown simulation CONTROL SYSTEM CONNECTED To simulate the motor shutdown: TO THE USER SYSTEM 1. Switch OFF the machine circuit breaker; 2. Make sure that BR1 and BR2 signals have been 6.3.1 Initial checks disabled;... -
Page 42: Timers Setting
In case of questions, consult during normal operation. This difference must be WEG. checked periodically. If an increase in this difference is observed after a long period of normal operation, verify 6.5.3... -
Page 43: Vibration
Switch off the oil circulation system of the bearings (if directions. When the customer sends the half coupling to any); WEG, the motor is balanced with the half coupling Switch off the hydraulic unit (if any); mounted on the shaft. Otherwise, according to the ... -
Page 44: Motor Starting And Shutdown
7 MOTOR STARTING AND SHUTDOWN The slip ring motor starting should be done with external rheostat connected to the rotor circuit through the brushes set and slip rings. The rheostat function is to reduce the starting current and increase the motor starting torque. As the motor increases the speed, the rheostat must decrease its resistance progressively until it reaches the smallest possible value and then it must be short-circuited. -
Page 45: Motor Shutdown
The external rheostat resistance must be at its 7.3 MOTOR SHUTDOWN maximum value and the rheostat short-circuit contactor must be opened; With the motor in operation, the brushes are lifted, the The user control system must check starting slip rings are short circuited, and the rheostat short- condition of the motor control system (BR3 and circuit contactor is closed. -
Page 46: Maintenance
"Maintenance Plan" of this manual. If reimpregnation is The inside of the motor must also be kept clean, free of necessary, consult WEG. dust, debris and oils; The windings may be cleaned with an industrial vacuum ... -
Page 47: Inspections
If any layer of resin on the windings is damaged during the radiator tubes are found during the cleaning, they cleaning or inspection, such parts must be corrected with must be repaired; adequate material (in this case, consult WEG). 5. Reassemble the heads, replacing the gaskets, if necessary. 8.4.5... -
Page 48: Brush Holder And Brushes
Any change in the type or quantity of brushes can only be made with the authorization of WEG. The brushes must be inspected weekly during operation. Those with excessive wear must be replaced. -
Page 49: Shaft Grounding Device
If that is not possible due to the presence of rotating 8.11 SHAFT GROUNDING DEVICE parts near the grease nipple (pulleys, etc.) which may put the operator at risk, follow the procedures below: The shaft grounding brush (if any) avoids the circulation ... -
Page 50: Type And Amount Of Grease
0.85 GMA-2 (Lithium Soap) NOTE GADUS S3 T100 Shell (-20 to +150) 0.94 WEG is not liable for the grease change (Diurea Soap) or for any damages arising from this LGHP 2 (-40 to +150) 0.94 change. (Polyurea Soap) Table8.3 shows the most common rolling bearings used... -
Page 51: Low Temperature Greases
Therefore, it is not recommended to mix different types of grease without consulting the grease supplier or WEG. Some thickeners and basic oils cannot be mixed, because they do not form a homogeneous mixture. In this case, one cannot rule the possibility of hardening or softening of the grease, or reduction of the dropping point of the resulting mixture. -
Page 52: Bearing Assembly
Proceed according to the following directions: The oil selected for the application must have the proper viscosity for the bearing operating temperature. The type of oil recommended by WEG already considers these criteria; Insufficient quantity of oil may damage the bearing;... -
Page 53: Bearing Operation
8.12.2.4 Bearing operation Reinstall the upper intermediate ring (130), fasten it directly to the lower intermediate ring (200) and, using The system starts, as well as the first hours of a rolling bearing puller, extract the set formed by the operation, must be monitored carefully. -
Page 54: Rolling Bearing Replacement
If the equipment does not have oil outlet pipes, contact WEG for guidance on how to 8.12.4.2 Bearing installation and operation ensure the proper oil level at the outlet. -
Page 55: Sealing
If the supplied bearings are manufactured by parts. Cracked or broken parts must be replaced. WEG, refer to the specific bearing manual In case of bearing maintenance, in order to assemble supplied with the motor, containing the... -
Page 56: Guide Bearing (Lower)
8.12.4.8.2 Guide bearing (lower) 8.12.5.2 Disassembly/assembly of the sleeve bearing temperature sensors The lower guide bearing function is to provide the radial location of the motor shaft without load or axial displacement limitation. Figure 8.15: Pt100 on the bearings Figure 8.15 legend: 1. -
Page 57: Maintenance Of The Brush Lifting System
8.13 MAINTENANCE OF THE BRUSH NOTE LIFTING SYSTEM After 6 months of use, all parts with mechanical contacts must be lubricated; Preventive maintenance procedures 8.13.1 The brushes will have greater durability Daily: if the motor starts are not frequent, but they must be inspected periodically;... -
Page 58: Slip Rings Short-Circuit Contacts
8.13.1.2 Slip rings short-circuit contacts 8.13.1.3 Fixing the drive arm of the short- circuit bushing The short-circuit contacts alignment of the slip rings is essential for good motor performance. The arm of the short-circuit bushing must be fixed with a The male and female contacts should be well aligned shaft, a castle nut and a cotter pin. -
Page 59: Motor Disassembly And Assembly
If any further explanations are necessary, consult WEG. The disassembly and assembly sequences depend on the motor model. Always use proper tools and devices. Any damaged part (cracks, dents on machined parts, faulty threads) must be replaced, avoiding restorations. -
Page 60: Tightening Torque
9.5 TIGHTENING TORQUE The Table9.1 and Table9.2 shows the tightening torques of the screws recommended for assembling the motor. Table9.1: Screw tightening torque for metal/metal parts Stainless steel / Material / Carbon Steel / A2 – 70 or Resistance class 8.8 or above above % Yield Strength... -
Page 61: Spare Parts
Table9.3: Necessary and optional spare parts list Motor model Spare parts MAA, MAP MAL, MAI MAD, MAT Temperature sensor for front and rear bearing ▲... -
Page 62: Maintenance Plan
10 MAINTENANCE PLAN The maintenance plan described in Table10.1 is only referential, and the intervals between each maintenance intervention may vary according to the motor location and operating conditions. For the associated equipment, such as the water supply unit or control and protection system, it is necessary to refer to their specific manuals. -
Page 63: Abnormalities, Causes And Solutions
11 ABNORMALITIES, CAUSES AND SOLUTIONS NOTE The instructions of Table11.1 present only a basic list of abnormalities, causes and corrective actions. In case of questions, consult WEG. Table11.1: Basic list of abnormalities, causes and corrective actions ABNORMALITY POSSIBLE CAUSES CORRECTION ... - Page 64 ABNORMALITY POSSIBLE CAUSES CORRECTION Fans with inverted rotation direction Correct the rotation direction of the fans Insufficient cooling due to dirty air channels Open and clean the air passage channels Measure the stator current Overload ...
- Page 65 Table11.2: Monitor of system control faults FAULT DESCRIPTION CORRECTION Corrective actions: 1. Turn OFF the Q1 circuit breaker to prevent motorized movement of the system; 2. Verify the inductive sensors adjustment F01 – Gear motor protection and operation; Fault on system moving with the 3.
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Page 66: Declaration Of Conformity
12 DECLARATION OF CONFORMITY l Installation, operation and maintenance manual 16319709... -
Page 67: Environmental Information
These materials are recyclable or reusable and must be properly disposed according to the current regulations of each country. All the wood used in the packaging of WEG motors comes from reforestation and receives anti-fungal treatment. 13.2 PRODUCT... -
Page 68: Warranty Term
There are no implied warranties of merchantability or fitness for a particular purpose that apply to this sale. No employee, agent, dealer, repair shop or other person is authorized to give any warranties on behalf of WEG nor to assume for WEG any other liability in connection with any of its products. - Page 69 NOTES 16319709 Installation, operation and maintenance manual l 69...
- Page 70 l Installation, operation and maintenance manual 16319709...
- Page 71 +55 47 3276.4000 energia@weg.net Jaraguá do Sul - SC - Brazil Cod. 16319709 | Rev. 03 | Date (m/y): 06/2024...
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