Rockwell Automation 1391 USER MNL/DIGITAL AC SERVO DR - Manual (Page 62)

Chapter
7
Chapter
7-1
Installation
Chapter Objectives Chapter 7 provides the information needed to help properly mount and
wire the 1391-DES Servo Drive for operation. Since 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 thoroughly understood before the actual installation begins.
ATTENTION: The following information is merely a guide for
proper installation. The National Electrical Code and any other
governing regional or local code will overrule this information.
The Allen-Bradley Company cannot assume responsibility for
the compliance or the noncompliance to any code, national,
local or otherwise for the proper installation of this drive or
associated equipment. A hazard of personal injury and/or
equipment damage exists if codes are ignored during
installation.
!
Mounting Mounting dimensions for the 1391-DES Servo Drive can be found in
Appendix A. Chapter 2 provides information on power dissipation and
environmental specifications. The drive must be located on a flat, rigid,
vertical surface and must not be subjected to shock, vibration, moisture, oil
mist, dust, corrosive vapors, etc. or temperatures that exceed 60
°
C (140
°
F) ambient.
Drives can be mounted adjacent to each other with a minimum clearance of
0.312” (7.9 mm) between units and/or surrounding cabinetry and
non-current carrying surfaces. However, it is recommended that a space of
approximately 1.0” (25.4 mm) be left between adjacent units to allow easy
access and removal of the front cover. To allow for proper airflow, a
minimum clearance of 3.0” (76.2 mm) is required along the top and bottom
of the unit and any adjacent components.
The transformer that supplies 230V AC, three-phase and 36V AC to each
servo drive must have 3” (76.2 mm) of clearance around it and any
adjacent components. This will allow for proper airflow and wiring access.
The transformer can be mounted in either a horizontal or vertical position.