Rockwell Automation 6000 PowerFlex Medium Voltage Variable Frequency Drive Installation Instructions - Manual (Page 47)

Rockwell Automation Publication 6000-IN006A-EN-P - April 2014 47
Drive Electrical Installation Chapter 3
Electrical Installation
Summary
Connect the System Ground
Cable The drive ground bus runs along the bottom of the drive at the front. The ground
bus is accessible at the bottom of the front of each drive cabinet when the cabinet
door is opened. Connect the system ground cable to the drive ground bus
(
Figure 27 ).
Figure 27 - Ground Cable Connection in the Isolation Transformer Cabinet
Megger Test of Power Cables Before connecting the incoming line and outgoing motor power cables, follow
standard industry practice to verify the integrity of the power cable insulation
from the input breaker to the drive and from the drive to the motor.
Connect Incoming Line and
Outgoing Motor Power
Cables The installer must ensure that all power connections are in accordance with
national and local electrical codes.
Each drive is equipped with provisions for bottom power cable entry as standard.
Provisions for top power cable entry can also be provided. This must be specified
at the time of order.
Connect External Cabling and Wiring Page
Connect the System Ground Cable 47
Megger Test of Power Cables 47
Connect Incoming Line and Outgoing Motor Power Cables 47
Connect Control Power Wiring 50
Connect External Control Signal Wiring 52
Connect Electrical Safety Interlock Circuit to Input Circuit Breaker 53
M8*25 Bolt
M8 Nut
Lock Washer
Flat Washer
Customer/Contractor supplied
System Ground Cable
Ground Bus
IMPORTANT If an optional Bypass cabinet is supplied, the system ground cable connection
is in the Bypass cabinet. Refer to publication 6000-UM002_-EN-P.