Rockwell Automation AK DBU - Dynamic Braking Unit 600/690 VAC - Manual (Page 13)

Chapter
1
Installation/Wiring
This chapter provides the information needed for the installation and
wiring of the Allen-Bradley Dynamic Braking Module.
Most start-up difficulties are the result of incorrect wiring. Every
precaution must be taken to assure that the wiring is done as instructed.
All items must be read and understood before the actual installation
begins.
For free air circulation through the cooling fins of the power section, the
braking unit must be mounted in the vertical position only. In order to
prevent overheating due to heat build-up, minimum clearances for air
circulation of 100 mm (25 in) above and below the unit must be
observed.
The rate of cooling air for the forced ventilated DBU is 158 m
3
/h,
with a bottom to top of the unit air flow.
See
Appendix A , Figure A.3 for detailed dimension information.
For information on…
See
page
For information on…
See
page
Minimum Mounting Clearances 1-1 Power Wiring 1-4
Grounding Requirements 1-2 Control Wiring 1-8
Fuses 1-3 CE Conformity 1-9
Protection of Brake Resistors and Conductors 1-3
!
ATTENTION: The following information is merely a guide for proper
installation. The Rockwell Automation Company cannot assume
responsibility for the compliance or the noncompliance to any code,
national, local or otherwise for the proper installation of this device or
associated equipment. A hazard of personal injury and/or equipment
damage exists if codes are ignored during installation.
Minimum Mounting Clearances