LT360 Precision Turntable
User Manual
LT360 Precision Turntable
User Manual
33
5.1 Front Panel Functions
The front panel contains all of the connectors for the various interfaces
including: USB (Type-B), RS-232 (DB-9F), TTL Pulse Input (BNC), Analog
Input (BNC), Analog Output (BNC), and the LR360 Remote (MiniDIN-6).
The front panel also provides 8 pushbutton switches arranged in four color
coded groups which are used for manual control of the turntable. A multi-
function 4 digit LED display is also provided.
The controls are recessed under the surface edge of the turntable to help
prevent damage due to objects which might be dropped from above, since
the turntable is often located on a floor surface.
Most of the functions are self explanatory as listed by the screen printing on
the front panel. However some features are not able to be described on the
front panel surface and will be detailed here in the following pages.
STEP
CW
STEP
CCW
ZERO
CW
ZERO
CCW
SET
DPS
RESOLUTION
DEG/STEP
10mV/DEG
SET
RPM
SET
ORIGIN
SET
TORQUE
Precision Turntable
RS-232
INTERFACE
USB
INTERFACE
ANALOG
OUTPUT
ANALOG
INPUT
DIGITAL
INPUT
VELOCITY
REV/MIN
ZERO DEG
REFERENCE
% MOTOR
POWER
10mV/DEG
TTL PULSE
POSITION • DPS • RPM • TORQUE
LR360
INTERFACE
REMOTE
CONTROL MODULE
1
2
3
4
5
6
56
Note that the mass load capability in the vertical configuration is not a
function of the RPM or acceleration functions of the LT360. Gravity domi-
nates the acceleration entirely.
Larger mass loads can be handled by reducing the radial distance. Reducing
the distance by half will double the mass load capability.
From these calculations it should be clear that the centroid of the mass load
must be located fairly close to the rotational center, to avoid creating large
torque requirements. In the vertical configuration acceleration due to
gravity is the limiting factor.
