ETS-Lindgren 2088 EuroPro Electric Powered Turntable - (Archived 03/31/10) - Manual (Page 21)

MODEL 2088 ELECTRIC POWERED TURNTABLE Operation
© ETS-LINDGREN L.P. – JANUARY 2003 17
REV C – PN 399253
DECRM keys under LIMIT until the desired limit is shown on the
display. Press the ENTER key.
WARNING: Ensure the current travel limit settings will not cause
damage to existing cables and equipment located underneath the
turntable.
Should continuous operation be desired, the Model 2090
Controller permits easy configuration to this type of operation
from the front panel or through the IEEE-488 interface bus. Refer
to the Model 2090 Manual for more information.
TURNTABLE ENCODER CALIBRATION
C Refers to the encoder calibration parameter. This setting is used
to convert the encoder count values returned from a motor base
into the corresponding centimeter or degree position reading. For
turntables, this represents the number of encoder counts per
revolution. The setting for the Model 2088 Turntable Series is:
5440
If the given value does not appear to work correctly, the encoder
calibration value can be determined using the following procedure:
1. Set the encoder calibration value to 3600.
2. Insure that the turntable is positioned to allow more than a full
revolution of travel in the clockwise direction and use the
STEP keys to run the turntable clockwise a few degrees to
remove any play in the table.
3. Mark the current location of the turntable against the ground
ring (masking tape works well), and set the current position
reading to 000.0.
4. Using the STEP keys, rotate the turntable clockwise until it is
again aligned with the mark on the ground ring. For best
results, the last motion should always be in the clockwise
direction to insure that any play in the gearing between the
motor and encoder is accounted for.
Archived 3/31/10