US MOTORS NEMA Eline Series Manual

Instructions Manual – Eline NPE 1 12/21/2011
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INSTALLATION
AND
MAINTENANCE MANUAL

Instructions Manual – Eline NPE 2 12/21/2011
SAFETY FIRST
High voltage and rotating parts can cause serious or fatal injury. Qualified
personnel must perform safe operation, and maintenance. Familiarization with
and adherence to NEMA MG2, the National Electrical Code (NEC) and local
codes is required. It is important to observe safety precautions to protect
personnel from possible injury. Personnel should be instructed to:
1. Be familiar with the equipment and read all instructions thoroughly before
installing or working on equipment.
2. Avoid contact with energized circuits or rotating parts.
3. Disconnect all power sources before initiating any maintenance or repair.
4. Act with care in accordance with prescribed procedures in handling and
lifting this equipment.
5. Be sure unit is electrically grounded in accordance with code
requirements.
6. Be sure equipment is properly enclosed or protected to prevent access
by children or other unauthorized personnel in order to prevent possible
accidents.
7. Be sure shaft key is fully captive before unit is energized.
8. Avoid contact with capacitors until safe discharge procedures have been
completed.
9. Provide proper guarding for personnel against rotating parts and
applications involving high inertia loads, which can cause overspeed.
10. Avoid extended exposure to equipment with high noise levels.
INSPECTION AND HANDLING
Inspect unit to make sure no damage has occurred during shipment.
Check nameplate for correct speed, horsepower, voltage, Hertz, and phase for
conformance with power supply and equipment. WARNING: Units should be
lifted using all eyebolts or lugs if provided. These eyebolts or lugs are provided
for lifting this unit only and must not be used to lift any additional weight. Lifting
angle, from shank of eyebolt, must not exceed 30° for machines with single and
45° for machines with multiple lifting means. Replacement eyebolts must be per
ASTM A489 or equivalent. All eyebolts must be securely tightened. Be careful
not to touch overhead power lines with lifting equipment. Failure to observe this
warning may result in serious personal injury.

Instructions Manual – Eline NPE 3 12/21/2011
STORAGE
Units should be stored indoors, in a clean, dry location and winding should
be protected from excessive moisture absorption. NOTE: If motors are to be
stored for more than one year, refer to US Motors.
MAINTENANCE
Inspect units at regular intervals. Keep units clean and ventilation openings clear
of dust, dirt or other. WARNING: Disconnect all power sources to the unit and
discharge all parts, which may retain an electrical charge before attempting any
maintenance or repair Screen and covers must be maintained in place when unit
is in operation Failure to observe this warning may result in personal injury. All
actions connected with installations of the motor shall be made by a qualified
person.
GREASE LUBRICATION INSTRUCTIONS
Units are pre-lubricated at the factory and do not require any additional
lubrication
BEARING LIST
E|ine
Frame
size
Bearing
Type DE &
ODE
140T 6205 2Z C3
180T 6306 2Z C3
210T 6308 2Z C3
250T 6309 2Z C3
280T 6311 2Z C3

Instructions Manual – Eline NPE 4 12/21/2011
LOCATION
WARNING: Use only UL Listed Hazardous Location Motors for service in
Hazardous Locations as defined in Article 500 of the NEC. Units should be
located in a clean, well-ventilated area. WARNING: Units should be located in a
suitable enclosure to prevent access by children or other unauthorized personnel
to prevent possible accidents.
INSTALLATION / MOUNTING
Motors may be mounted horizontally or vertically, provided that there is free
movement for cooling air. The motors are designed for mounting position, W-2,
W-3, W-6, W-8, and F-1 or F-2 assembly positions. The F-1 assembly is
standard.
When mounting the motor, make sure drain holes are positioned to allow
condensed moisture to drain off.
Mount units on a firm, flat surface sufficiently rigid to prevent vibration. Drive
belts and chains should be tensioned in accordance with supplier
recommendations.
Couplings should be properly aligned and balanced. For belt, chain and
gear drive selection refer to the drive or equipment manufacturer. For application
of drive equipment refer to applicable information in NEMA MG1.
Motors have been dynamically balanced using a half key the same length
as the full key shipped with the motor.
If pulley keyway length is less than this length, rework long key by removing
one-half of excess length between pulley and end of key to maintain balance.
Do not restrict motor ventilation. Unless otherwise specified on nameplate,
motor is designed for operation in accordance with NEMA MG1 “Usual Service
Conditions” which states an ambient temperature range of -15°C to 40°C (5°F to
104°F).
Standard grease lubricated units are suitable for operation within this
temperature range, special lubricants may be required for ambient temperatures
outside of the range.

Instructions Manual – Eline NPE 5 12/21/2011
NOTE:Motors operating under rated load and allowable ambient conditions may
feel hot when touched; this is normal and should not be cause for concern. When
in doubt, measure frame surface temperature and confer with nearest office.
Enclosed motors normally have condensation drain openings. Insure that drain
openings are properly located and open (plugs removed) for the motor mounting
position. Drain openings should be at the lowest point of end brackets, frame
housing and terminal housing when the motor is installed. This may require
modification of motor to accomplish. If unit appears wet, and/or has been stored
in a damp location, dry out thoroughly and check for adequate insulation
resistance to ground before operating
20 MOhms - for 140 through 180 motor frames
2 MOhms - for 210 through 280 motors frame
as measured with a 500V magneto .
Resistance control device between each phase and frame indicates excess
moisture requiring that the windings be dried before installation.
WARNING: Guards should be provided for all exposed rotating parts to prevent
possible personal injury. Keep fingers and foreign objects away from ventilation
and other openings. Applications involving high inertia loads may damage
equipment due to motor overspeed during coast shutdown. Such applications
should be refereed to US Motors.
CAUTION: Do not force drive coupling or other equipment onto shaft, as bearing
damage may result.
POWER SUPPLY AND CONNECTIONS
The power supply must agree with values on nameplate. Terminal voltage
should not vary more than ±10% of nameplate voltage at rated frequency.
Unbalanced line voltage, greater than one percent, can cause overheating. Do
not exceed the continuous rated load amperes on the nameplate.
Starting controls and overload protection should be properly sized in
accordance with the NEC and the control manufacturer's recommendations.

Instructions Manual – Eline NPE 6 12/21/2011
Connecting Data and Starting Methods
*All the motors must be connected according to the following diagrams*
Connection Diagram for Frames 143T to184T, nominal voltage 230/460V
Connection Diagram for Frames 213T to 286T, nominal voltage 230/460V
Connection Diagram for Frames 143T to 184T, nominal voltage 575V
Connection Diagram for Frames 213T to 286T, nominal voltage 575V

Instructions Manual – Eline NPE 7 12/21/2011
140 frames with unscrewed conduit box
After taking out the motor from the carton, the conduit box should be
assembled accordingly to the drawing below.
1- Motor frame (140)
2- T.B body seal
3- Terminal box body
4- Screws
5- Cover gasket
6- Terminal box cover
1 2 3 4
5 6 4

Instructions Manual – Eline NPE 8 12/21/2011
SERVICE
For after sales service and warranty questions refer to you local US Motors
representative or visit our website at: www.usmotors.com