Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C Frame) - Classic Control - Manual (Page 233)

4-28 Commissioning
7000L-UM300I-EN-P – June 2013 7000 “C” Frame
Control Power Off Tests
The following checks listed in this section of the chapter should be
performed prior to applying control power to the drive. It is
recommended that these checks be completed in the sequence that
they have been presented in this chapter.
Interlocking
When the input contactor option is purchased a key interlock is
provided to prevent access to the medium voltage compartments of
the drive unless the input isolation switch is locked in the open
position.
Where the input switching device is provided by others, Rockwell
Automation will provide a key interlock on the medium voltage
compartment of the drive, and a matching interlock for installation
by others on the upstream device. The interlock shall be installed in
a manner that ensures the power to the drive is off and the drive is
electrically isolated whenever the key is freed.
Although Key interlocks shipped with all medium voltage equipment
are aligned in the factory, they often move out of position during
shipping or are often misaligned when the cabinet is set down on an
uneven floor. The following instructions will assist the field engineers
in quickly and accurately aligning the dead-bolt key interlock with
its counterpart.
A T T E N T I O N A T T E N T I O N Servicing energized industrial control equipment
can be hazardous. Severe injury or death can
result from electrical shock, burn, or unintended
actuation of control equipment. Hazardous
voltages may exist in the cabinet even with the
circuit breaker in the off position. Recommended
practice is to disconnect or lock out control
equipment from power sources, and confirm
discharge of stored energy in capacitors. If it is
necessary to work in the vicinity of energized
equipment, the safety related work practices of
NFTA 70E, Electrical Safety requirements for
Employee Work places, must be followed.