Balance – Rockwell Automation 1329L AC Induction Motors User Manual User Manual
Page 15
AC Induction Motors
15
In addition to observing the above precaution, all precautions
(Attentions) mentioned previously in this document should be
observed.
•
Stop and remove power from the motor per the Drive User
Manual directions.
•
Verify that the DC bus voltage is zero per the Drive User Manual.
•
The interior of the motor should be clean and dry.
•
Connections must be tight.
•
The driven machine should be unloaded, if possible.
Important: Machines designed for cooling by a separate source of
forced ventilation must not be operated without the air
supply. Be sure blower is running in proper direction.
While operating the motor, observe the performance. It should run
smoothly with little noise. The bearings should not overheat and
should reach a leveling off temperature. Any undue noise,
overheating, or erratic performance should be investigated and
necessary corrective action taken immediately to prevent serious
damage. Before attempting any repairs, please contact your Allen-
Bradley Sales Office.
All motors are lubricated before shipment and will operate for a long
period before regreasing is required. The period will vary depending
on environmental and service conditions. Refer to
Balance
Motors are dynamically balanced to commercial limits unless ordered
differently. Balance is done with a full length 1/2 height shaft key. A
full shaft key is shipped with the motor. Sheave or coupling should be
balanced with a 1/2 height shaft key.
Standard Dynamic Balance Limits
!
ATTENTION: Surface temperature of the motor enclosure
may reach temperatures which can cause discomfort or
injury to personnel coming into contact with hot surfaces.
The user must apply appropriate guards and/or shields to
protect against accidental contact with motor surface.
Failure to observe this precaution may result in personal
injury.
Highest Rated Speed
(RPM)
Maximum Amplitude
(Inches)
3,000 - 4,000
0.0010
1,500 - 2,999
0.0015
1,000 - 1,499
0.0020
Up to 999
0.0025