ETC Echo Architectural Control Processor (ACP) v1.0.0 - Manual (Page 76)

71 Echo ACP Configuration Manual
Dimmer Properties
Mode:
The firing mode menu allows you to set a dimmer or a range of dimmers to a specific firing
mode. Available firing modes include:
• Normal: used for standard dimming of non-specialized load types. The dimmer
operates with a modified square curve by default.
• Dimmer Doubled: dimmer operates as two controllable circuits with two channels of
control. This mode is displayed for use only with 120V AC / 60Hz systems utilizing ETC
Dimmer Doubling™.
• Switched: dimmers output unregulated AC voltage when the control level is above the
set threshold level.
• 2/3 Wire Fluorescent: used with 2 and 3 wire fluorescent loads. The dimmer operates
with a linear dimming curve.
• Always On: the dimming device is in full conduction.
• Off: turns the dimmer off.
• 4 Wire Fluorescent: instructs the DRd enclosure that the Fluorescent option card is
required to control up to 24 outputs on the FLO option board (up to 12 outputs for a
DRd6 enclosure and 24 outputs for a DRd12 enclosure). The dimmer is on when the
control level is greater than the threshold setting which is “0” by default.
• DALI: instructs the DRd enclosure that the DALI option card is required to control DALI
compatible ballast. The dimmer is in an always on mode.
• Reverse Phase: used with the ELV10, HELV5 and AELV5 module.
• LED Smoothing Reverse: Applies a smoothing algorithm that yields better fades on
LED load types. Can only be used with ELV10, HELV5, AELV5, and EELV6
• LED Smoothing Forward: Applies a smoothing algorithm that yields better fades on
LED load types, using forward phase dimming control.
Changing the dimmer firing mode automatically changes the default settings for curve,
threshold, voltage regulation, minimum voltage and maximum voltage.
Curve:
The “Curve” menu option allows you to set a dimmer or a range of dimmers to a specific
curve. A dimmer curve is a mathematical function that maps control levels to RMS output
voltage. Curves are scaled from the minimum voltage to the maximum voltage.
The Echo ACP provides two dimmer curves for use including: Modified Square Law and
Linear.
Threshold:
Threshold allows you to set a dimmer or a range of dimmers to a specific threshold control
level (0-100%) at which it begins to respond. Below that threshold level, the dimmer
remains off. The default value is 0%.
Voltage Reg:
Voltage Reg: is an On or Off setting. When enabled, the dimmer or range of dimmers will
regulate to the desired output voltage as determined in Minimum Scale and Maximum
Scale settings. When disabled, the dimmer or range of dimmers will be set to a constant
firing time based on the control level. When voltage regulation is disabled, Max Scale
voltage is not displayed for setting.