Rockwell Automation GV3000/SE AC Bookshelf Drive Hardware Ref, Installation, and Troubleshooting - Manual (Page 65)

Wiring Optional User-Supplied Braking Resistors 8-1
C
HAPTER
8
Wiring Optional User-Supplied
Braking Resistors
This chapter describes how to select and wire optional user-supplied braking
resistors.
8.1 Installation Guidelines
Use the following guidelines when installing braking resistors:
• The cable length of the connection between the braking unit and the resistor must
not exceed 2.5 m (8 ft).
• Provide ground connections as shown in figure 8.1.
• The conductors should be twisted together and run separate from other conductors.
• If the braking resistor is mounted in a separate enclosure, this must be metallic
conductive and the diameter of ventilation holes should not exceed 6 mm (.236 in).
• Heat-resistant cables and cable sockets (minimum 90 ° C) must be used to connect
the braking resistor.
• Wire rated at a minimum of least 600 volts for 460 VAC must be used. Refer to table
8.1 for cable cross-section specifications.
• If the drive installation must be in compliance with the European community
electromagnetic compatibility standards, refer to Appendix C.
!
ATTENTION: The user is responsible for conforming with all applicable
local, national, and international codes. Failure to observe this precaution
could result in damage to, or destruction of, the equipment.
!
ATTENTION: It is important to use wire rated at 600 volts for 460 VAC
because this wiring may make contact with uninsulated 460 VAC
components. Failure to observe this precaution could result in damage
to, or destruction of, the equipment.