Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - Classic Control - Manual (Page 67)

2-32 Drive Installation
7000-UM150I-EN-P – June 2013 7000 “B” Frame
Power Wiring Selection (cont.)
The wire sizes must be selected individually, observing all applicable
safety and CEC or IEC / 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 drive and
the motor is the same as that used if a main voltage source
connection to the motor was used. The distance between the drive
and motor may affect the size of the conductors used.
Consult the wiring diagrams and appropriate CEC or IEC / NEC
regulations to determine correct power wiring. If assistance is
needed, contact your local Rockwell Automation Sales Office.
Power Cabling Access
The drive is built with provision for either the top or bottom power
cable entry.
Cable access plates are provided on the top and bottom plates of the
connection cabinet identified by the customer specific dimension
drawing.
To access the customer power cable terminations
Open the door of the low voltage control compartment.
The low voltage control compartment is hinged on its left side. The
power terminals are behind the low voltage control compartment.
Note that there is a key interlock to prevent swinging the low voltage
control compartment open unless the medium voltage source is
locked out.
Turn each of the three latches on the right side of the low voltage
compartment one-quarter turn using an 8-mm hexagonal key wrench.
There is a pull handle provided on the right side of the low voltage
compartment.
Slowly pull the handle so that the low voltage compartment swings
out. The power terminals are now visible.
The installer is responsible for modifying the power cable access
plates to suit the requirements.
Note that appropriate connectors must be used to maintain the
environmental rating of the enclosure.