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24 smartMAC user manual

DMX operation

WARNING! Read “Safety Information” on page 3 before installing, powering, operating or servicing

the smartMAC.

This section describes only DMX control features that require particular explanation. See “DMX protocol” on

page 37 for full list of the DMX channels and values required to control the different effects. See “Effects” on

page 22 for a full description of the fixture’s effects.

8- and 16-bit control

The smartMAC has two DMX operating modes, 8-bit and 16-bit. 16-bit mode uses three more DMX

channels than 8-bit mode and provides all the features of 8-bit mode plus fine control of rotating gobo, pan

and tilt. You can select the DMX operating mode in the

menu.

Where fine control is available, the main control channel sets 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.

Fixture reset

If an effect loses its indexing and fails to move to programmed positions, the fixture can be reset from the

controller by sending the “Reset” command on DMX channel 1.

If DMX reset is disabled in the control menu (

→→), the reset command can only be

executed if color 8 is selected (DMX value 128 or 145 - 148 on channel 3) and gobo 6 is selected (DMX

value 24 - 27 or 52 - 55 on channel 4).

→is set to , the reset command must be sent for 5 seconds before it is executed.

Shutter

Shutter operation is controlled on channel 1 apart from shutter fading, which is controlled on channel 2.

Shutter fading provides a means of reducing light output by gradually moving the shutter in from one side to

mask the beam.

Rotating gobo wheel

On channel 4, any of the six rotating gobos can be selected at an indexed angle, rotated, or shaken from

side to side at an indexed angle or while rotating. The entire gobo wheel can also be scrolled continuously,

and gobos set to music triggered gobo chase.

Channel 5 provides extra control of the effect selected on channel 4, allowing adjustment of indexed gobo

angle and speed of continuous or music-triggered gobo rotation.

Fine control of gobo indexing angle is available on channel 5 in 16-bit mode.

Pan and tilt

Pan and tilt are controlled on channels 9 and 10 in 8-bit mode or 10 and 12 in 16-bit mode. Fine pan and tilt

control are available on channels 11 and 13 in 16-bit mode.

Pan/tilt speed and effects speed channels

The pan/tilt and effects speed channels 11 and 12 in 8-bit mode or 14 and 15 in 16-bit mode provide two

methods of controlling the speed of pan/tilt and effect movement: “tracking” and “vector”.

Tracking versus vector control

Important! Movement may be rough and unpredictable if controller fade times are combined with vector speed

values.

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