User`s manual

VARI❋LITE® - VL3500™ SERIES LUMINAIRE USER’S MANUAL
28 31-July-2004 02.9678.0019 0
Shutter Control
Shutter Mechanism
The shutter mechanism is comprised of four frame blades that move independently or in unison on two
planes for a crisp, sharp image (refer to Figure 3-3 below). The entire assembly operates in a smooth,
time-continuous motion using stepper motors (two per frame blade and one to rotate the entire shutter
mechanism). The shutter mechanism can rotate 50
o
in either direction and the frame blades can tilt +/-
30
o
.
.
Figure 3-3: Shutter Mechanism
Frame 1A
Frame 2B
Frame 3A
Frame 2A
Frame 3B
Frame 4A
Frame 1B
Frame 4B
Frame 1A
Frame 2B
Frame 3A
Frame 2A
Frame 3B
Frame 4A
Frame 1B
Frame 4B
Motor Side
Frame Blade 3
Frame Blade 1
Frame Blade 4
Cable Assembly
Note:
Shutter mechanism shown outside
of its assembly for clarity
Frame
Blade 2
Table 3-15: Shutter Mechanism DMX Map Chart
Item % Value DMX Value Action
Frame 1A
to Frame 4B
00 Open
100 255 Closed
Shut Rot
(Shutter
Rotation)
0 0 CCW
50 128 Center
100 255 CW