Rockwell Automation Publication 6000-UM002E-EN-P - April 2018 25
Drive System Layout Chapter 2
Incoming Line Power Cable Connections
There are three types of incoming and outgoing MV power cable routing for
PowerFlex 6000 drives, see Figure 11
, Figure 12, and Figure 13 for details. When
the Junction cabinet is not applied, the incoming line cables connect to the line
side terminals in the Isolation Transformer cabinet. Incoming line cables can be
routed inside through the top or bottom of the Isolation Transformer cabinet.
When the Junction cabinet is applied, the incoming line cables connect to the
terminals inside the Junction cabinet. See the PowerFlex 6000 Medium Voltage
Variable Frequency Drive Shipping, Handling, and Installation Instructions,
publication 6000-IN006
for additional details.
Outgoing Motor Cable Connections
When the Junction cabinet is not applied, the outgoing motor cables connect to
the cable stand-off assembly on the cabinet side sheet or the cable stand-off
mounted on the Isolation Transformer, depending on the different configuration
or drive rating.
When the Junction cabinet is applied, the outgoing motor cables connect to the
terminals inside the Junction cabinet. Outgoing motor cables can be routed
inside through the top or bottom of the cabinet system. Generous working space
is provided. See the PowerFlex 6000 Medium Voltage Variable Frequency Drive
Shipping, Handling, and Installation Instructions, publication 6000-IN006
for
additional details.
Door Position Limit Switch
Each cabinet door that allows access to medium voltage components is lockable
and also has a Guardmaster® safety limit switch. If the cabinet door is opened
when the input switching device feeding power to the drive is closed, the input
device will be tripped off.
ATTENTION: The door position interlock is a safety feature. It must not be used
solely as a part of the plant operation process to ensure the drive has been
disconnected from input medium voltage. Keep the medium voltage doors
locked as standard practice. If access to the medium voltage rated cabinets is
required, always go to the input device feeding the drive to verify if it is open.
Lock out and tagout the input device before performing any work on the drive
or bypass units.
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