User Manual

16
Application Note #480
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®
Advanced Programming Mode (continued)
Programming Option 6: Low-End Trim (See Low-End Trim Shortcut below)
What it Does
Eliminates LED and CFL bulb flickering and strobing when the dimmer is turned ON to the dimmest setting. This feature can
also be used to set a personal preference for incandescent or halogen bulbs.
Settings
Some LED and CFL bulbs require a higher Low‑End Trim than others. Low‑End Trim allows the user to change the lowest
dimmer light level based on bulb performance. Low‑End Trim adjustment is required for LEDs and CFLs to optimize bulb
performance and preserve bulb life.
Default Setting
IL 3
Directions (How to Program from APM)
1. Enter Low-End Trim Menu: While in APM, press the
or button to select the sixth option, Programming
Option 6: Low‑End Trim. Once IL 6 is blinking, press the
T
button.
2. Select Desired Low-End Trim Level: Press the or
button to select the desired Low‑End Trim level. ILs 1–7
represent the different settings.
Note:
– While setting the Low‑End Trim, observe the actual
light (load) and not the ILs on the dimmer to determine
the optimum setting.
– Incremental levels of light intensity exist within each
IL setting, and the or button may have to be
pressed several times to proceed to the next setting.
3. Press the
T
button one time to set the Low‑End Trim
and return to the APM main menu.
Notes:
– Low‑End Trim adjustment is required for LEDs and
CFLs; if not performed, the life of the LED/CFL bulb
may be reduced.
– If there is no button activity for 1 minute, the dimmer
will automatically exit APM and return to Normal
Operation.
Continued on next page…
Low-End Trim Shortcut
For quick changes* to the Low‑End Trim, this
shortcut method bypasses the APM.
1. Press and hold the
T
and
buttons until an IL blinks.
The Load will turn OFF and
then turn ON to Low-End.
2. Press the or button
to adjust light output until
it’s stable and not flickering.
Press and release the
T
button to save setting.
3. Press and release the
T
button to turn load OFF,
then press the button
once. If load does not turn
ON or remains unstable,
repeat Step2, pressing the
button to increase light level.
* It’s not necessary to enter any Programming or APM modes.
T
Or
IL 7: Brightest Low-End
IL 6
IL 5
IL 4
IL 3: (Default)
IL 2
IL 1: Dimmest Low-End
Low-End Trim
T
FASSTM
To Exit any mode or programming step:
– Press and hold the
T
button for 5 seconds
or
– Pull the FASSTM out, then push the FASSTM back in
or
– Wait for 1 minute