Grounding; Wiring Your Motor - TECHTOP NEMA Serie Instructions

ENGLISH FRANÇAIS

8. GROUNDING

Ground the motor according to NEC and local codes. In the USA, consult the
National Electrical Code, Article 430 for information on grounding of motors and
generators, and Article 250 for general information on grounding. In making the
ground connection, the installer should make certain that there is a solid and
permanent metallic connection between the ground point, the motor or generator
terminal housing, and the motor or generator frame. In non-USA locations consult
the appropriate national or local code applicable.

9. WIRING YOUR MOTOR

Connect the motor as shown in the connection diagram on the motor nameplate.
Be sure to identify the proper wiring diagram for the motor you are installing. If you
have difficulty determining the proper wiring diagram for your motor, please contact
Techtop for assistance. If this motor is installed as part of a motor control drive
system, connect and protect the motor according to the control manufacturer's
diagram. When using AC motors with frequency inverters, be certain that the
motors maximum speed rating is not exceeded. The wiring, fusing and grounding
must comply with the National Electrical Code or IEC and local codes. Note: If
improper rotation direction is detrimental to the load, check the rotation or 'bump'
the motor prior to coupling the load to the motor shaft. When the motor is coupled
to the load and started, it should start quickly and run smoothly. If not, stop the
motor immediately and determine the cause. Possible causes are: low voltage at the
motor, motor connections are not correct or the load is too heavy. Check the motor
current after a few minutes of operation and compare the measured current with the
nameplate rating.
WARNING:
unless you first ensure that power has been
disconnected. Please refer to: OSHA standard
1910.147 titled: The Control of Hazardous energy
(lockout/tag-out).
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