Effects 17
Effects
This section describes the effects that can be controlled via DMX in the MAC 575 Krypton.
The MAC 575 Krypton has two DMX operating modes, 16-bit basic and 16-bit extended. The extended
mode requires six more DMX channels than the basic mode and provides all features of the basic mode
plus fine control of the dimmer, both color wheels, iris, focus and zoom.
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.
See page 29 for the complete DMX protocol.
Lamp power
Lamp on
The lamp-on command on channel 1 strikes the lamp if it is off. If the lamp is on, this command has no
effect.
Note: An inrush 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 doused from the controller with the lamp-off command on channel 1. The command must
be sent for 5 seconds.
If the lamp-off command is disabled in the control menu (
→→), the lamp-off command
can still be selected on channel 1 if the following effects are also selected:
• color wheel 2 must be set to slot 1 by sending DMX value 17 on channel 4 in basic mode/6 in extended
mode
• the prism must be set to on with no rotation by sending DMX values 80 - 89 on channel 10 in basic
mode13 in extended mode
• both gobo wheels must be set to open gobo by sending DMX value zero on channels 5 and 8 in basic
mode/8 and 11 in extended mode.
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 channel 1.
If DMX reset is disabled in the control menu (
→→), the reset command can only be
executed if the conditions listed under “Lamp-off” are met (see above). If it is set to
, the reset
command must be sent for 5 seconds before it is executed.
Dimming and strobe
The mechanical dimmer/shutter system provides smooth, high-resolution 100 percent 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.
Normal dimmer control is available on channel 2, with fine control available on channel 3 in extended mode.
Color wheels
The two color wheels have 8 color filters each. Both wheels can scroll continuously, allowing split colors, or
in full-color steps. The DMX protocol provides commands for random and continuous color scrolling at
different speeds.
To Next Page
Loading...
Need help?
General
