Speed Control - Martin Professional MAC 2000 Performance II User Manual

The pan/tilt speed (fast, norm, or slow) may be selected on the pan/tilt speed channel. Setting the pan/tilt speed channel
to "blackout" causes the shutter to black out the light while the head is moving.

Speed control

There are two ways to control the speed at which effects move from one static position to another. These are known as
tracking control and vector control and are selected on the Pan/Tilt Speed and Effect Speed Channels. These channels
are independent so you may, for example, combine a vector control pan movement with a tracking control color fade.
In tracking mode, speed is determined by the cross-fade time. The controller continuously sends small position
changes that the fixture "tracks." To enable tracking mode, set the relevant speed channel to a tracking value. Note that
in addition to enabling tracking control, some tracking values also provide overrides of the menu settings.
In vector mode, speed is set directly on a speed channel. The cross-fade time must be 0. Vector control provides a way
to set speed on controllers that do not have programmable fade times and results in smooth movement regardless of the
cross-fade time or the controller's processing power.
To open the iris slowly in tracking mode, for example, you program a scene with the iris fully closed and a second
scene with the iris fully open. Then you set a cross-fade time between the two scenes of, say, 10 seconds. The
controller gradually changes the iris position value from 199 (closed) to 0 (open).
To open the iris slowly in vector mode, you program the iris closed and open as before. Then you set the cross-fade
time to 0 and program a slow speed, in the second scene, on the Effect Speed Channel.