beautypg.com

C.4.2 motor leads – Rockwell Automation GV3000/SE AC Drive Ver. 6.06 Hdwe Ref., Installation, and Troubleshooting Manual User Manual

Page 119

background image

Compliance with Electromagnetic Compatibility Standards

C-11

C.4.2 Motor Leads

The motor leads must be run in continuous, rigid, conductive conduit,

continuously-screened armored cable, or equivalent. Note that the use of flexible

metal conduit, open wire, or wire in trays is not acceptable. Many flexible metal conduit

products have not been designed for RF containment and are not adequate to

maintain compliance.

All motor leads should have the same cross-sectional area. The maximum allowable

motor lead length from the drive to the motor is 250’ (76m).

A ground (earth) lead, equivalent in size to the motor leads, must be run with the

motor leads from the motor to the drive. Terminate this lead in the drive at the ground

terminal.

Proper glands must be used to terminate the motor conduit/cable. The gland must

secure the cable screen to the conductive surfaces of the drive and motor. A full 360

°

screen termination is preferred.

Follow all instructions supplied with the motor.

C.4.3 Connecting AC Input Power to the AC Mains Filter

Connect AC input power to the filter by first removing the filter’s cover and then

connecting the AC input power leads to the terminals at the top of the filter. See figure

C.1. The AC input power leads should have lugs attached. The filter-GV3000/SE

cabinet has a conduit opening to secure the AC input power conduit.

Figure C.7 – Typical Three-Phase Connections for AC Mains Filter M/N 2DF4125

GV3000/SE

U

V W

GND

MOTOR

AC Mains Filter

Drive's AC

Input Power

Filter's AC

Input Power

L1 L2 L3

GND

1L1 1L2 1L3

GND