Rockwell Automation 7000L PowerFlex 7000 Medium Voltage AC Drive C Frame - Marine - Manual (Page 78)

2-48 Drive Installation
7000L-UM302B-EN-P – June 2013 7000 “C” Frame - Marine
PowerFlex 7000 electrical drawings use conventions that are based
on IEC (International Electrotechnical Commission) standards, while
remaining basically compatible with North American ANSI
(American National Standards Institute) standards. The symbols
used to identify components on the drawings are international and a
full listing of the symbols is given as part of each PowerFlex 7000
elementary drawing (ED) set. The device designations used on the
drawings and labeling are also listed with explanations on each
drawing set.
Wiring identification uses a source/destination wire number
convention on point to point multi-conductor wiring and in situations
where the system is warranted. The wire-numbering system of
unique, single numbers for multi-drop and point to point wiring
continues to be used for general control and power wiring. Wiring
that connects between the sheets or that ends at one point and starts
at another point on a drawing has an arrow and drawing reference to
indicate the ongoing connection. The drawing reference indicates
the sheet and the X/Y coordinates of the continuation point. The
reference system is explained on a sheet in each drawing set. The
unique wire numbering system serves as confirmation that the
correct wire is being traced from sheet to sheet or across a drawing.
Wires in multi-conductor cables are typically identified by color
rather than by number. The abbreviations used to identify the colors
on the drawings are fully identified on a sheet in the drawing set.
Power Wiring Selection
The following tables identify general wire selections that will be
encountered when installing the PowerFlex 7000 drive line-up.
General Notes:
Adherence to the following recommended field power cabling
insulation levels for medium voltage drives will help to ensure
trouble-free start-up and operation. The cable insulation level must
be increased over that which would be supplied for an across-the-line
application with the same rated line-to-line voltage.
Either shielded or unshielded cable may be used based on the criteria
considered by the distribution system designer, applicable marine
standard(s) requirements and local standards. However, NEC
requires shielded cable for installations above 2 kV.
IEC Component and Device
Designation