Rockwell Automation Publication MM-IN001B-EN-P - February 2022
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Kinetix MMA Asynchronous Main Motors Installation Instructions
Motor Power Terminations
The customer must provide their own motor power cables. Follow your local guidelines and regulations for sizing and applications. See the Knowledgebase article:
MMA Frequently Asked Questions
, for additional information.
1.
Attach incoming power (U, V, and W) to their corresponding terminals.
Figure 8 - Motor Power Terminal Board
2.
Attach the ground wire to the ground lug. See
for ground lug location based on shaft height.
Thermal Sensor and Thermal Switch Terminations
If you have thermal sensors, you must consult the drive manual for additional information. All Kinetix MMA main motors come standard with two thermal sensors, but also
have the option for additional thermal sensors. However, not all thermal sensors are supported by Kinetix drives. A 1756-IRT8I Logix thermal sensor module or similar may be
required to receive and read these signals. The TS thermostat does not provide the actual working temperature, but only provides a signal that indicates whether the
temperature is within or over the preset limit. If the TS thermostat is not properly connected, the warranty on the product is voided. Additional wiring needs to be
considered. See
for the list of drive manuals.
See the Knowledgebase article:
Kinetix MMA Frequently Asked Questions
, for additional information.
ATTENTION:
Hazard of personal injury or equipment damage is possible. Consider all applicable local, national,
and international codes, standards, regulations, or industry guidelines.
IMPORTANT
The following factors must be considered when bulk cable is selected:
• Power cables must be rated to voltage higher than the system voltages at all operating conditions.
• Cable conductor current carrying capacity (after all applicable deratings) must be greater than or equal to
the connected motor continuous rated current.
• Cables must meet all local and global regulatory requirements.
• Cable must have overall shield to meet the applicable electromagnetic radiation/emission requirements
• The size and shape of the power terminal strip may vary based on the motor size.
• If applicable, form a drip loop in the cables to carry liquids away from the connectors.
• If using conduit, make sure that condensation will drip away from the connectors and terminal box.
ATTENTION:
Create a manual reset or a specific routine in the PLC software to avoid an automatic motor restart
following a high-temperature warning from the thermal protection system. Do not conduct the high-voltage test
on the thermal protector terminals. RTD provides real temperature data and may need to be connected to a
controller if there is not drive support.
W2
U2
V2
U1
V1
W1
IMPORTANT
Motor power ratings are based on a star
configuration.
Use of the star configuration for motor
power wiring is recommended.
U1
V1
W1
3-pin terminal
(SH132, SH160, some SH180)
6-pin terminal
Drip loop for
top-mounted
terminal boxes.