Martin MAC 500 Manual de usuario descargar pdf (Pagina 16)

16 MAC 550 Profile

Pan and tilt

Pan and tilt are controlled on channels 22 to 25 (16 to 19 in basic mode). The coarse control channels set

the first 8 bits (the most significant byte or MSB), and the fine channels set the second 8 bits (the least

significant byte or LSB) of the 16-bit control byte. In other words, the fine channel works within the position

set by the coarse channel.

Speed channels

Tracking versus vector control

Important! Effect movement may be rough and unpredictable if controller fade times are combined

with vector speed values.

The speed channels provide two methods for controlling speed that are known as “tracking” and “vector”.

With tracking control, the speed at which effects move is determined by a cross-fade time programmed on

the controller. With this method, the controller divides a movement into tiny steps that the fixture “tracks”.

Tracking control is enabled by setting the speed channels to one of the tracking values listed in the DMX

protocol.

With vector control, speed is set with a DMX value on the speed channel. This provides a way to control

speed on controllers without cross-faders. Vector control can also provide smoother movement, particularly

at slow speeds, with controllers that send slow or irregular tracking updates. When using vector control, the

controller’s cross-fade time, if available, must be 0.

Blackout

When “blackout while moving” is selected on a speed channel, the shutter closes when an effect moves to

make the transition invisible. The shutter opens when the movement is complete. This function is available

for pan, tilt, color, gobo, and prism change.

Personality overrides

The pan/tilt speed channel provides tracking values that allow you to override the pan/tilt speed setting from

the controller.

The effects speed channel provides values for overriding the shortcuts setting for the color and gobo

wheels.

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Martin MAC 500 Manual de usuario Pagina 16