Martin MAC 101 Series Manuel d'utilisateur télécharger pdf (Page 15)

DMX-512 control 15

DMX-512

CONTROL

The MAC 250 Krypton is compatible with USITT DMX512 controllers. The full protocol is available in “DMX

protocol” on page 27.

The fixture has two DMX operating modes, 16-bit and 16-bit Extended. 16-bit Extended mode uses 17 DMX

channels, three more than the 14 DMX channels than standard 16-bit mode requires. 16-bit Extended mode

provides more precise control of the dimmer color, and focus settings. All other functions are identical. See

“DMX protocol” on page 25.This section briefly describes the DMX-controllable effects. The DMX mode is

selected using the PSET option in the fixture control menu (see “Control menu” on page 30).

Lamp power

LAMP-ON

Unless automatic lamp strike is enabled, lamp power remains off until a lamp-on command is sent from the

controller.

Note: A peak of electric current that can be many times the operating current is drawn for an instant when

striking a discharge lamp. Striking many lamps at once may cause a voltage drop large enough to prevent

lamps from striking or draw enough current to trip circuit breakers. If sending lamp-on commands to multiple

fixtures, program a sequence that strikes lamps one at a time at 5 second intervals.

LAMP-OFF

The lamp can be turned off from the controller by sending the lamp-off command on channel 1 for 5

seconds. The lamp cannot be restruck for 8 minutes after being turned off. Note that the

lamp-off command may be disabled by the DMX Lamp-Off personality setting (PERS/dLOF).

Effect position

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 channel 1 for 5 seconds. Note that the DMX reset feature

may be disabled by the DMX Reset personality setting (PERS/dRES).

DIMMER / SHUTTER

The mechanical dimmer/shutter system provides full, high-resolution dimming, “instant” open and blackout,

random and variable strobe effects, and random and variable pulses in which the dimmer snaps open and

slowly dims or snaps closed and slowly opens. Shutter, strobe, and pulse effects are selected on channel 1.

The intensity level is selected on channel 2. 16-bit Extended mode provides fine tuning of the intensity level

on channel 3.

COLOR

The color wheel can be scrolled continuously - allowing for split color effects - or in steps, and rotated

randomly or continuously in both directions at different speeds. 16-bit Extended mode provides finer tuning

on channel 5 of the color setting selected on channel 4.

GOBO ROTATION AND SELECTION

The MAC 250 Krypton has 7 indexed-rotation gobo positions plus an open position. Gobos can be indexed

(positioned at a defined angle), rotated continuously, or rotated and shaken (bounced). The gobo and the

type of movement are selected on channel 4 (channel 6 in 16-bit Extended mode) and the index angle or

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Martin MAC 101 Series Manuel d'utilisateur Page 15