Rockwell Automation 1560E SMC Flex Smart Motor Controller - Manual (Page 60)

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Power Wiring The wire sizes must be selected individually, observing all applicable
safety and CEC or NEC regulations. The minimum permissible wire size
does not necessarily result in the best operating economy. The minimum
recommended size for the wires between the controller and the motor is the
same as that used if a main voltage source connection to the motor was used.
The distance between the controller and motor may affect the size of the
conductors used.
Consult the wiring diagrams and appropriate CEC or NEC regulations to
determine correct power wiring. If assistance is needed, contact your area
Rockwell Automation Sales Office.
Interlocking Hinged doors and panels, which provide access to medium voltage
components, must be mechanically interlocked to ensure circuit isolation.
If a combination MV SMC-Flex (1562E) is purchased from Rockwell
Automation, all medium voltage compartments will be mechanically
interlocked such that they cannot be opened unless the isolating switch for
the unit is open. Each medium voltage door is interlocked to the isolating
switch handle. To open the doors, move the isolating switch to the OFF
position and loosen the two retaining bolts on the main power cell door.
Once this door is open, the other doors may be opened in sequence,
depending on the specific interlock scheme provided. The retrofit-type
MV SMC-Flex (1560E) is intended to be added to an existing motor
controller, and has no isolating means included.
For 1503E and 1560E, it is the responsibility of the
installer/user to ensure the equipment interlocking
scheme is in place and functional before energizing the
equipment. Inadequate interlocking could expose
personnel to energized parts which could result in severe
burns, injury or death.
NOTE: Rockwell Automation can assist with the selection of an appro-
priate interlocking method, which may include mechanical modifications
to the cabinet(s) or key-type lock systems.
NOTE: An auxiliary cabinet may be attached to the main structure. It will
be ram-interlocked with the main power cell door, which will not allow it
to be opened until the main power cell door is opened.
A T T E N T I O N A T T E N T I O N