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AT SERIES ARCHITECTURAL DIMMER
Revision 0.3
OWNERS MANUAL
03/16/2020
www.lightronics.com
Lightronics Inc.
509 Central Drive Virginia Beach, VA 23454
Tel 757 486 3588
OPERATIONAL CONTROLS
The AT Series dimmer provides a user interface on the circuit board and connection points for switches to activate
scenes that can be preset into the AT series dimmer. This is also the connection point for the DMX control wires.
INITIAL SET UP
Set up of the AT Series dimmer is done using the 2 LED indicators and the 3 push buttons located at the bottom
left of the low voltage section of the circuit board inside of the unit. Use these controls to set the unit to operate
correctly for the type of input power being applied to the unit.
Set the Input Power Phase for each dimmer channel. This must be set correctly or dimmers will not operate
correctly.
Symbol
Function
Value
P2
Ch. 2 Input Phase
A, B, or C
P3
Ch. 3 Input Phase
A, B, or C
P4
Ch. 4 Input Phase
A, B, or C
For P2-P4, set to A, B, or C depending on which phase each channel gets its power from. For single phase power
set P2, P3, and P4 to "A".
