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Advanced Menu
Redback Dimmer
Operator Manual V1.1
6 A d v a n c e d M e n u
The advanced menus provide access to system
settings and functions not required for general
operation of Redback.
6.1 Accessing the Advanced
Menus [ADV]
To enter the Advanced Menu system requires
holding down the
3
Flip
key for two seconds.
The display changes to show the Soft Patch
menu
SPATCH
, when the Advanced Menu
system is available.
6.2 Soft Patch
S P A T C H
The Soft Patch option allows any dimmer to be
allocated to any address in the DMX universe
(including the possibility of multiple dimmers
sharing the same DMX address).
The
Right
arrow key activates the menu
option and displays the current soft patch mode
of the dimmers.
If DMX channel allocation has been set from the
Basic [ADDR] sequential address option, the
screen will display:
1 T O 1
If dimmer addresses have been allocated from
the soft patch option, the display reads:
P A T C H D
In this screen:
The
Up
and
Down
arrow keys switch DMX
addressing between the Basic sequential and
Advanced soft patch modes.
The
Left
and
Right
arrow keys step
between:
•
displaying the current address mode
1 T O 1
•
selecting a dimmer for addressing
2 D 1 8 1
In the address screen:
The
Up
and
Down
arrow keys increment
and decrement the DMX address allocated to
the selected dimmer (Range 1-512).
Soft patched address allocations are retained in
system memory, irrespective of Redback's
current address mode.
6.3 Fade Curve Selection
C U R V E
The Fade Curve menu enables selection of the
relationship between the input control signal and
the actual dimmer output. Each of the available
fade curves produces a different response from
the dimmer as the channel is faded up and
down.
6.3.1 S Law Curve
S C U
The S law curve is the standard dimming curve
found on the majority of electronic dimmers in
current use. It is favoured in live applications
because its "S" shape gives plenty of gentle
adjustment at the bottom and top ends of the
channel fader where subtle fades are important,
and a rapid rise in the middle of the fader. (This
is the default curve for Redback.)
6.3.2 Square Law
S Q U
The square law curve produces a linear power
output as the fader level increases. It comes on
rapidly at the bottom end but rises more gently
after 25% on the fader, a characteristic that
matches the light response of many video
camera systems.
6.3.3 120 Volt
1 2 0
The 120 Volt curve is intended for powering
120V lamps from a 240V mains supply. It follows
the pattern of the standard S law curve, but
limits the output to 120 Volts when the control
signal is at Full.
Warning:
A Total Reset, sets all dimmers to the default S
law curve (
SCU
). This could result in 240 Volts
being fed to 120 Volt lamps.
6.3.4 Switching loads On and Off
Redback has two curves for switching loads
directly between ON and OFF. These curves are
useful for controlling loads that don't take kindly
to being dimmed, such as motors or discharge
lamps.
6.3.5 Non Dim
N O N
The Non Dim curve is for use when a load
needs to be switched during a fade cue.
The load is switched ON when the dimmer level
goes above 60% and switched OFF when the
dimmer level falls below 40%.
6.3.6 Relay
R L Y
The Relay curve is for use when a load needs to
be switched at the beginning or end of a fade
cue.
The load is switched ON when the dimmer level
goes above 4% and switched OFF when the
dimmer level falls below 2%.
The
Right
arrow key activates the Curve
menu and displays the currently selected
dimmer and its assigned fade curve.
Page 12
LSC Lighting Systems (Aust) Pty. Ltd
Summary of Contents for Redback 12 Channel
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