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Appendix A: AMX Lighting Curves
54
RE-DM4 and RE-DM6 RADIA Eclipse Dimmer Modules
FIG. 42 shows three different Low End Settings of 5%, 10%, and 20%. Each curve holds its assigned value
until the dimmer level reaches 0. Ramping up from level 0 will turn on the lamps at three different levels
respectively. Low End settings can be used to correct for problems in dimming various lighting products at low
levels. Dimming ranges can be controlled using the low end setting.
Curve 1 dimming range is normally 0 -120 VAC, but with a Low End Setting of 5 the range is
reduced to 26 - 120, or a 20% reduction in total dimming range.
A Low End Setting of 10% reduces the range from 40 to 120 VAC or 35% reductions while a Low
End Setting of 20 on Curve 1 is about a 50% reduction in dimming range.
Small adjustments in a curve can cause significant changes in a dimmer's response.
Economical Dimming Curve (2)
Similar to Curve 1, Curve 2 rolls off at 90% of the top end or about 105 volts maximum. FIG. 43 shows a curve
that reduces the maximum output to 90% of maximum to conserve energy. It is also called the 'energy saving
curve'.
Relay turn on level = 1%
Dimming Range = 0 - 114 VAC.
FIG. 42 Curve 1 with Low End Setting @ 5%, 10%, and 20% Volts RMS
FIG. 43 Curve 2 at 120V AC