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.
