ETS-Lindgren 2090 Controller User Manual

Page 64

Operation

Model 2090 Multi-Device Controller

For two speed turntables, pressing the SPEED key will

toggle the speed control relay in the motor base. The

FAST or SLOW indicator will light to indicate the state of

the speed relay. The actual speed set by these two positions

is dependent on the turntable design.

For variable speed devices, the selection of the preset speed

from the front panel is accomplished slightly differently,

since the POLARIZATION / FLOTATION / SPEED key

may have other uses. Pressing the LOCAL key while the

Model 2090 is in local mode (and not editing a parameter)

will display the currently selected preset speed (

SPD 1

through

SPD 8

) in the 7-segment display. The display will

remain for several seconds and then return to displaying the

current position. While the speed display is visible,

pressing the INCRM or DECRM keys under the LIMIT

group will increase or decrease the speed selection by one

setting. Each time the INCRM or DECRM keys are

pressed, the speed display period will be extended, so it is

easy to scroll up and down through the list of preset speeds.

Refer to the section on “Editing Parameters” under

“Initialization” for information on adjusting the preset

speed values.

For a Standard Turntable with variable speed capability,

(previously selected as a Variable Speed Turntable by

setting

= 3), the SPEED key also provides the ability to

cycle between the eight preset speeds described above. For

each press of the button, the turntable will change to the

next speed setting. The FAST and SLOW polarization

Revision G– P# 399199