Chapter 6: Fixture Motion Functions; This Chapter Describes Mechanical Movement Control For Dlhd Fixtures; Pan And Tilt; Dimmer - High End Systems DLHD High Definition Digital Light User Manual

Chapter 6:
Fixture Motion Functions

This chapter describes mechanical movement control for DLHD fixtures.

Pan and Tilt

DLHD fixtures have a 400° pan range and a 240° tilt range. Two DMX channels for Pan and two
for Tilt provide 16-bit position adjustment to a fraction of a degree.
MSpeed values can control the timing of pan and tilt motion for DL.3 and DL.2 fixtures, (see
MSpeed (Motor Speed) on page 46). To control Pan and Tilt movement timing via a DMX
controller crossfading, leave the Pan/Tilt MSpeed in its default Off setting.
NOTE: DL.3 and DL.2 fixtures use optical encoders for pan and tilt to instantly
correct the fixture's position if the fixture is jarred from its
programmed position.
If a physical obstruction prevents the fixture from correcting its position, this
correction feature "times out" to prevent wear on the motors.
If the fixture's position correction has timed out, remove the
obstruction and home the fixture to return it to normal operation.

Dimmer

DL.3 and DL.2 fixtures have a mechanical iris located in front of the projector output lens that
functions as a dimmer for the fixture's output. This feature gives the operator the ability to fully
shutter the output and eliminate the residual luminance from video black. The Dimmer
parameter controls the dimming iris adjustment from closed (DMX value = 0) to fully open
(DMX value = 255).

Focus

The Focus parameter controls the fixture's mechanical focus from near (DMX value = 0) to far
(DMX value = 255).

Zoom

This Zoom parameter controls the fixture's mechanical zoom from narrow (DMX value = 0) to
wide (DMX value = 255).
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