Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive (A Frame) - ForGe Control - Manual (Page 32)

32 Rockwell Automation Publication 7000A-UM200C-EN-P - June 2014
Chapter 2 Drive Installation
Figure 25 - Acoustic Hood Assembly for Neutral Resistor
Installation of Neutral Resistor Assembly (Direct-to-Drive)
On top of the converter cabinet, a sheet metal enclosure containing power
resistors is to be installed.
1. Locate the resistor assembly on top of the cabinet as shown in Figure 24
(For acoustic hood assembly, refer to Figure 25 ).
2. Affix the assembly to the top plate using M6 thread forming screws
provided.
3. Remove the top plate of the resistor assembly to permit access to the wiring
connection points.
4. Connect the resistor wiring and per the electrical diagram provided with
the drive, a typical connection diagram is shown in
Figure 24 . Ensure that
the resistor wiring is routed through the hole having a plastic bushing to
protect the wire insulation. The neutral resistor assembly housing has a
ground connection that is to be connected to the top plate of the drive.
5. Re-install the top plate of the neutral resistor housing.
Assembled Acoustic
Exhaust Hood Hood Ground Stud
M6 Screw (x11)
Remove existing
screw and reinsert
with Hood
M6 Screw (x6) Ground Exhaust
Hood (use Green
M6 Screw) Neutral Resistor
Assembly
Top Plate for Converter and Common
Mode Choke/DC Link Cabinet