Installation, Operation and Maintenance Manual Vertical Solid Shaft Normal Thrust and In-Line AC Motors • Vertical Mount • Solid Shaft • Normal/Medium/Extended Thrust • In-Line Coupled • API 610 Style (P-Base) • 180-449 Frames
Vertical Solid Shaft Normal Thrust and In-Line AC Motors ! Table Of Contents ATTENTION: Only qualified electrical personnel familiar with the construction and operation of this equipment and the hazards involved should install, adjust, operate, and/or service this motor. Read and understand this manual in its entirety before proceeding. Failure to observe this precaution could result in severe bodily injury or loss of life. Receiving and Handling Acceptance . . . . . . . . . . . . . . . . . . .
Vertical Solid Shaft Normal Thrust and In-Line AC Motors 3 Unpacking If facilities for the shelter of equipment are not available, do not unpack until ready for use. If this equipment is to be stored for any period of time prior to installation, the area should be dry and protected and not subject to severe humidity changes, extreme oil, dirt and similar adverse conditions. After unpacking and inspecting, turn the motor shaft by hand to assure that there are no obstructions to free rotation.
Vertical Solid Shaft Normal Thrust and In-Line AC Motors • • Installation Where motors are not stored in the original containers, but are removed and mounted on other pieces of machinery, the mounting must be such that the drains and breathers are fully operable. In this respect, the drains must be kept at the lowest point in the motor and/or the drain plugs removed so that all condensation can automatically drain out. All other storage conditions apply, including rotation of motor shafts.
Vertical Solid Shaft Normal Thrust and In-Line AC Motors 5 Table A General Effect of Voltage & Frequency Variation on Induction-motor Characteristics Starting & Maximum Running Variation Torque Voltage Variation: 120% Increase voltage 44% 110% Increase voltage 21% Functions (voltage)2 of Voltage 90% Decrease Voltage 19% Frequency Variation: 105% Decrease frequency 10% Efficiency Sync Speed Slip % No change Decrease Increase 30% 1.
Vertical Solid Shaft Normal Thrust and In-Line AC Motors Allowances should be made for shaft growth (due to thermal expansion) to avoid potential problems with seals and/or bearings. All motors with the thrust bearings located in the top will have some degree of shaft growth. The following chart lists the expected amount of growth for Allen-Bradley LP motors. Shaft Growth Frame Size 180 210 250 280 320 Growth mm (inches) 0.05 (0.002) 0.13 (0.005) 0.25 (0.010) 0.30 (0.012) 0.38 (0.
Vertical Solid Shaft Normal Thrust and In-Line AC Motors 7 Grounding Motors should be grounded to limit their potential to ground in the event of accidental connection or contact between live electrical parts and the metal exteriors. See the National Electrical Code, Article 430 for information on grounding of motors, Article 445 for grounding of generators, and Article 250 for general information on grounding.
Vertical Solid Shaft Normal Thrust and In-Line AC Motors Maintenance The fundamental principle of electrical maintenance is to keep the motor clean and dry. This requires periodic inspection of the motor, the frequency (depending upon the type of motor) and the service. Important: In order to retain UL listing, UL listed motors must be returned to an Allen-Bradley service facility for repairs or maintenance which requires opening the motor enclosure.
Vertical Solid Shaft Normal Thrust and In-Line AC Motors 9 Disassembly If it becomes necessary to disassemble this motor, care should be taken not to damage the stator windings as the insulation may be injured by improper or rough handling. Precautions to keep bearings clean should be exercised. Remove bearing cartridge screws before removing end shield screws. Marking end shields relative to position on frame will make reassembly easier. Bearings should not be removed unless they are to be replaced.
Vertical Solid Shaft Normal Thrust and In-Line AC Motors Lubrication Frequency Standard Conditions: Severe Conditions: Extreme Conditions: Eight hours per day; normal or light loading, clean, 40 degree C (100 degrees F) maximum ambient. Twenty-four hour per day operation or shock loading, vibration, or in dirt or dust at 40-50 degrees C (100-120 degrees F) ambient. Heavy shock or vibration, or dust.
Vertical Solid Shaft Normal Thrust and In-Line AC Motors 11 For more information contact your local Allen-Bradley Sales Office. Renewal Parts Parts can be obtained from your nearest Allen-Bradley parts distributor, or directly from the factory. When ordering parts for which a part number is not available, give complete description of part and purchase order number, serial number, model number, etc., of the equipment on which the part is used.
Online Documentation The latest motor information can be obtained from the Allen-Bradley Drives & Motors home page on the World Wide Web at: http://www.ab.com/drives/motors Publication 1329R-UM003A-EN-P – August, 2001 Supersedes 1325R-5.2 dated March, 1999 Copyright © 2001 Rockwell Automation. All rights reserved. Printed in USA.
