ETS-Lindgren 2065 LoPro Turntable Electric-powered 1.2m Turntable (Archived) - Manual (Page 5)

MODEL 2065 LOPRO TURNTABLE Introduction
© EMC TEST SYSTEMS, L.P. – APRIL 2002 1
REV F – PN 399230
INTRODUCTION
The Model 2065 is an electric-powered turntable platform system
designed to be used with the Model 2090 Positioning Controller
for EMI compliance testing. The Model 2065 Turntable is a low-
profile design which is constructed of PVC plate with a textured
ABS top and other non-metallic components. The 1.2 meter
diameter turntable is provided as an easily assembled system
which 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,
gear box, support bearings and drive belt included. The bearings on
which the table rotates are integral to the top and bottom of the
turntable. 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. These keepers prohibit
the bearings from shifting out of position during shipment. When
the user has the table set in place and is ready to begin testing,
these 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 via 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 gear box with a keyed coupling that clamps between the
two shafts. The shaft assembly transmits torque from the motor
drive to the gear box at the table. The drive belt, which runs around
the underside of the turntable at its perimeter, is driven by a pulley
in the gear box.
To limit over-travel of the turntable in either direction of
movement, fixed mechanical limits are installed in the motor base
enclosure. The primary means of limiting the turntable’s rotation
are the soft (electrical) limits which are set on the front panel of the
Model 2090 Positioning Controller. These soft limits should be set
Archived 3/18/10