Rockwell Automation 20D PowerFlex 700H and 700S Frame 9...14 Drives - Manual (Page 93)

Rockwell Automation Publication PFLEX-IN006E-EN-P - July 2013 93
Frame 11 Mechanical Installation Chapter 7
Ungrounded, High Resistive
Ground or Grounded B Phase
Delta Installations Frame 11 size drives are equipped with common mode capacitors. To guard
against drive damage, these capacitors should be disconnected depending upon
the type of ground system on which the drive is installed.
Installation on an Ungrounded Distribution System or High Resistive
Ground
If you are installing a 400/480V AC input drive on an ungrounded distribution
system or high resistive ground, you:
• Must move the common mode jumper to the disconnected position - see
Move the Common Mode Jumper to the Disconnected Position on page
95 .
• Should insulate terminal X4 on the Rectifier circuit board- see Insulate
Terminal X4 on the Rectifier Circuit Board on page
96 .
If you are installing a 600/690V AC input drive on an ungrounded distribution
system or high resistive ground, you:
• Must move the common mode jumper to the disconnected position - see
Move the Common Mode Jumper to the Disconnected Position on page
95 .
• Must insulate terminal X4 on the Rectifier circuit board- see 96 on page
Insulate Terminal X4 on the Rectifier Circuit Board.
Installation on a Grounded B Phase Delta System
If you are installing a drive on a grounded B phase Delta system, you:
• Must move the common mode jumper to the disconnected position - see
Move the Common Mode Jumper to the Disconnected Position on page
95 .
• Must insulate terminal X4 on the Rectifier circuit board- see Insulate
Terminal X4 on the Rectifier Circuit Board on page
96 .
Note: See Wiring and Grounding Guidelines for Pulse Width Modulated
(PWM) AC Drives, Installation Instructions, publication
DRIVES-IN001 , for
additional information on an ungrounded distribution system or high resistive
ground installation.