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MAC 500/E User Manual

Controllable effects

All moving effects are reset to a “home” position when the fixture is powered up. The fixture can also be reset via

DMX if DMX reset (

SPEC/dRES) is enabled. There is also a combination of DMX values that allows you to reset

the MAC 500/E even if this feature is disabled; see the DMX protocol for details.

An on-the-fly position correction system monitors the position of the color wheels, fixed-gobo wheel, and rotating

gobos. If an error is detected, the shutter closes and the effect is reset to its home position. Normal operation resumes

immediately thereafter. This feature can be disabled by setting effects feedback (

SPEC/EFFb) to OFF.

General operation may be optimized for speed or quietness with the studio mode setting (SPEC/MOdE). The menu

setting may be overridden via DMX using the effects speed channel in DMX modes 3 and 4.

Lamp

The MAC 500/E can be set to automatically strike the lamp within 90 seconds of being powered on by setting the

Automatic Lamp On (

SPEC/ALON) personality to ON. A delay determined by the fixture address prevents all

lamps from striking at the same time.

If Automatic Lamp On is set to off (default), the lamp remains off until a “lamp on” command is sent from the control-

ler. A peak of electric current that can be many times the operating current is drawn for an instant when striking the

lamp: striking many lamps at once may cause a voltage drop large enough to prevent lamps from striking or trip the

main circuit breaker. Avoid this by programming a “lamp on” sequence that strikes lamps one at a time at 5 second

intervals.

Power to the lamp can be turned off from the controller if the DMX Lamp Off (

SPEC/dLOF) feature is enabled.

There is also a combination of DMX values that allows you to turn off the lamp even if this feature is disabled; see the

DMX protocol. %H FDUHIXO: it is not possible to strike the lamp within 8 minutes of having switched it off. The MAC

500/E will store a “lamp on” command and strike the lamp automatically when the 8 minutes have elapsed.

With the MAC 500 E, lamp power falls to 400 watts for cooler operation and longer lamp life when the shutter is

closed for 10 seconds. Power instantly returns to full when the shutter opens. Reduced power mode can also be forced

- with the shutter open - by setting channel 1 to a DMX value from 73 to 79.

Pan and tilt

The moving head pans 440° and tilts 306°. Movement may be optimized for speed by setting the pan/tilt speed

(

PTSP) personality to FAST, or for smoothness by setting it to SLOW. The setting may be overridden on the speed

channel in vector mode. Setting the movement speed to “blackout” in vector mode causes the shutter to black out the

light while the mirror is moving. The pan and tilt channels (DMX) can be inverted and/or swapped for convenience

using the pan/tilt (

PATI) menu.

Color wheels

The MAC 500/E has 2 9-position-plus-open color wheels, yielding a total of 100 possible combinations. The 4 temper-

ature correction filters and 14 dichroic colors combine in 67 useful ways that can be called on 1 DMX channel. Both

wheels can be scrolled, allowing for split color effects, snapped to fixed positions, and continuously rotated in both

directions at different speeds. The 67 colors can be called randomly on DMX channel 4.

The Shortcuts (

SPEC/SCUT) setting determines whether the wheels take the shortest path to the next position or

turn in one direction only. The setting may be overridden on the speed channel in vector mode. Setting the color speed

to “blackout” in vector mode causes the shutter to black out the light while the wheels are moving.

Focus

The beam may be focused from 2 meters (6.5 feet) to infinity. The beam angle with the standard lenses is 17°. An

optional 23.5° wide-angle lens set is available as well. See “Accessories” on page 35.

Fixed (static) gobos

There are 2 operating modes available for the fixed-gobo wheel, which has 9 positions for metal gobos plus an open

position. In “fixed” mode (

SPEC/gMOd/FIX), the wheel steps between fixed positions and shakes at variable

speeds. In “scroll” mode (

SPEC/gMOd/SCRL), the wheel scrolls continuously, shakes at 1 speed, and rotates in

2 directions at variable speed.

Setting the fixed-gobo speed to “blackout” in vector mode causes the shutter to black out the light while the wheel

turns from one position to another.

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Martin MAC 500E Manuel d'utilisateur Page 10

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