Celestron 94155 Manuel d'instruction - Page 5

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FOCUS MOTOR FOR SCT & EDGEHD INSTRUCTION MANUAL

If you wish to change the motor speed rate, simply press

the BACK button, and select another rate.

If using with the Celestron Focuser Utility Program or

Celestron PWI, you can manually slew the focuser by

using the MOVE IN (rotates the motor clockwise) and

MOVE OUT (rotates the motor counter-clockwise)

buttons from the user interface. Change the speed rate

by using the Rate slider.

When the focus motor is in use, you can see the rear of

the motor's clamping collar rotating. There is a reference

printed in white on the focus motor to determine which

way the primary mirror is moving within the telescope.

The reference indicates that when the motor is rotating

clockwise, the primary mirror is moving in the negative

direction (i.e. towards the rear cell), and when the motor

is rotating counter-clockwise, the primary mirror is

moving in the positive direction (i.e. towards the Schmidt

corrector).

You can go to a specific focuser index position by using

a "Move To" command. If using a Celestron hand control,

press MENU and select "Focuser", then "Move To. " From

here, you can enter a focuser index position and the

motor will automatically slew to that position. When using

the Celestron Focuser Utility Program or Celestron PWI,

enter a focuser index position in the MOVE TO window,

and the motor will automatically slew to that position.

The "Move To" function is convenient to use after you

have determined the best focus for your setup. Take note

of the focuser index position, and you can automatically

return to that position in the future. The current index

position is shown on the "Move To" screen for the

hand control, and above the MOVE TO button for the

Celestron Focuser Utility Program and Celestron PWI.

When using the "Move To" command to automatically

NOTE

move the focuser to an index position, the focus motor will

always approach focus in the positive direction (i.e. with

the focus knob rotating counter-clockwise and the primary

mirror moving outward). This is done to ensure the best

accuracy of the "Move To" command, as it eliminates any

potentially "lost" index position steps due to backlash in the

telescope's focuser system. If the desired index position is

inward (i.e. a lower number) from the initial position, the

focus motor will move 500 steps inward past the selected

index position before reversing direction and returning to

the selected position.

ENGLISH

The "+" and "-" reference printed in white on the motor indicates the

direction in which the primary mirror is moving.