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Motor Operation
Motor Start-Up Precheck
Perform the following checks before the initial start
up.
• Inspect the motor for foreign materials and
general cleanliness.
• Ensure that the motor is dry — particularly on the
first start and after the machine has stood idle for
some time.
• Ensure that all drain and fill plugs/caps are
secured.
• Ensure that all gaskets are in place and all bolts/
fasteners are secured.
• Ensure that the oil level and/or grease quantity is
correct.
• Use a megohmmeter to determine the condition
of the windings (e.g., moisture present, winding
shorts, etc.).
• Check all connections to the motor and ensure
that the proper phase connections are applied
and are secured.
• Ensure that all auxillary connections are secured.
• Turn off space heaters during motor operation.
• Ensure that the applied input voltage and
frequency is within ±5% and ±2%, respectively, of
the nameplated voltage and frequency.
Note:
This rating is for the precheck only.
See
Zone A
and
Zone B
applicables for continuous operation.
• Check the alignment of the motor and coupled
load such that the shaft and bearings of the motor
will not be subjected to unnecessary strain or
wear.
• If possible, ensure that the rotor turns freely.
• Ensure that there are no obstructions or
interferences to motor operation. DO NOT turn
the rotor by inching (short thrusts at reduced
power).
https://www.toshiba.com/tic/
EQP Global IEC Series Low-Voltage 50/60 Hz Metric Motor
Ensure that all personnel are
clear of the motor and the
driven equipment during the
Motor Testing
• Run the motor without a load to confirm direction
of rotation and basic functionality. Motors with
unidirectional blowers can be operated only in the
direction shown on the rotation plate attached to
the motor.
DO NOT RUN A ROLLER BEARING WITHOUT
A LOAD CONNECTED.
If the opposite direction is required for a 3-phase
motor, switch any two of the three-phase input
power leads connected to the motor or contact
the
Note:
• Run the motor for approximately one hour to
check for any unusual heating of bearings or
windings. This also permits lubrication warm-up
before torque is applied to rotating parts.
operational
• Run the motor under a load. Check the bearing
housing occasionally while running. Using the
proper protective gear and/or measuring device,
ensure that bearing overheating does not occur.
Operation and Testing
DANGER
following test.
TIC Customer Support Center
The certified motor outline will define
the motor rotation.
for support.
13
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