Rockwell Automation SA500 Diagnostics, Troubleshooting Guide - Manual (Page 23)

Installation and Start-Up Guidelines 4-3
4.3 Installing the Motor
The motor should be installed in accordance with its own installation instructions.
Refer to the instruction manual that was provided for the motor (in the Instruction
Book) for specific instructions.
4.4 Installing the Drive
The drive is most often supplied in its own NEMA 1 enclosure. It is also available in
NEMA 4 and NEMA 12 cabinets, in free standing floor-mounted cabinets, in an open
panel configuration for mounting in the customer’s enclosure, or in a custom-built
control room.
4.4.1 Cabinet-Enclosed Wall-Mounted Drives
The drive in a wall-mounted NEMA 1 enclosure is force ventilated by means of its own
internal cooling fan(s) and additional cabinet fans. Air is drawn into the enclosure
through slots in the cabinet bottom and in the lower portion of the cabinet sides. Air is
forced out through internally shielded slots near the top of the cabinet sides. Air intake
and exhaust openings are unfiltered.
NEMA 4 and NEMA 12 cabinet enclosures are unventilated. Although an internal
circulating fan is employed to move air around within the confines of the cabinet to
better utilize the cabinet skin for heat dissipation and reduce internal hot spots, there
is no air exchange with the atmosphere outside of the enclosure.
4.4.2 Floor-Mounted Drives
NEMA 1 free-standing floor-mounted cabinets draw cooling air from slots in the lower
portion of the cabinet door and force air through slots near the door’s top, if a cabinet
fan is supplied. NEMA 4 and NEMA 12 floor-mounted cabinet enclosures are
unventilated.
4.4.3 Panel-Mounted Drives
The drive is available as a panel-mounted assembly where mounting of the drive
within a customer-supplied enclosure is desired. In these instances, the user is
responsible for ensuring that the maximum temperature within this enclosure remains
at or below the rated ambient temperature under worst-case operating conditions.
Note that the same fan-cooling as described in the previous two sections will be
provided for the Power Module.
4.5 Wiring the Power Module
Verify that the input power to the DC bus supply is of the correct voltage and sufficient
ampacity to support the Power Module’s input current requirements. Note that the
maximum available current from the DC bus supply must be less than the Power
Module’s short circuit current rating (RMS). Refer to the drive cabinet and motor
nameplates for correct current ratings and input power information.