ETS-Lindgren 2165 Turntable - Manual (Page 7)

Introduction | 7
1.0 Introduction
The ETS-Lindgren Model 2165 LoPro™ Turntable is an electric-powered,
variable-speed turntable platform system designed for use with the
Model 2090 Multi-Device Controller (or next generation ETS-Lindgren controller,
if applicable) for EMI compliance testing. The Model 2165 is a low-profile design
constructed of PVC plate with a textured ABS top and other non-metallic
components. The 1.2-meter diameter turntable is an easily assembled system
that can be disassembled for service or to be moved. The mechanical assembly,
motor drive unit, and shaft kit (optional) comprise the three basic subassemblies
of the turntable.
The mechanical assembly is shipped assembled with the top, base, gearbox,
support bearings, and drive belt. The bearings on which the turntable rotates are
integral to the top and bottom of the table. Three independent bearing races
provide support for the inner and outer portions of the turntable top. These
bearings are of a completely non-metallic construction. There are four keepers
located on the outside of the turntable top that prohibit the bearings from shifting
out of position during shipment. When the table is in place and ready to begin
testing, the keepers should be removed.
The motor drive, encoder, and limit switch assemblies are located in a shielded
enclosure with state-of-the-art I/O provided by a fiber optic interface. The
motor drive is coupled to the drive shaft with a flexible hose coupling. The other
end of the shaft connects to the turntable gearbox with a keyed coupling that
clamps between the two shafts. The shaft assembly transmits torque from the
motor drive to the gearbox at the table. The drive belt runs around the underside
of the turntable at its perimeter, and is driven by a pulley in the gearbox.
Turntable rotation is limited by the soft, or electrical, limits that are set on the
front panel of the controller.
There is a 1 cm (0.40 in) vertical x 2.54 cm (1.0 in) horizontal slot on the bottom
side of the turntable base that can be used to run 3/8-in maximum diameter cable
from the side and up through the center opening of the turntable.
Standard Configuration
T URNTABLE A SSEMBLY
Featuring continuous or non-continuous operation, the turntable assembly
includes:
• Single-phase electric drive (208-230 VAC 50/60 Hz)
• Variable-speed
drive