Lightronics AT Series Owner's Manual
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Lightronics AT Series Owner's Manual

Architectural dimmer
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Page 1 of 10
AT SERIES ARCHITECTURAL DIMMER
Revision 0.3
OWNERS MANUAL
03/16/2020
DESCRIPTION OF UNIT
The AT series dimmer is a unit specifically optimized for architectural applications. It can be supplied with up to
four 2400 Watt lighting circuits (channels) and be remotely controlled by a DMX lighting console. The AT series
dimmers are provided with a fast acting 20 Amp magnetic circuit breaker for each channel. A table at the end of
this manual gives a description of the different model numbers. The AT series dimmers can be supplied for 230
VAC operation.
The unit is intended for wall mounting. AT Series dimmers are for INDOOR USE ONLY.
www.lightronics.com
Lightronics Inc.
509 Central Drive Virginia Beach, VA 23454
Tel 757 486 3588

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Summary of Contents for Lightronics AT Series

  • Page 1 DESCRIPTION OF UNIT The AT series dimmer is a unit specifically optimized for architectural applications. It can be supplied with up to four 2400 Watt lighting circuits (channels) and be remotely controlled by a DMX lighting console. The AT series dimmers are provided with a fast acting 20 Amp magnetic circuit breaker for each channel.

  • Page 2: Power Requirements

    LOAD CONNECTIONS The AT Series dimmer is a triac based dimmer meant for forward phase loads. You can connect up to 2400 Watts of lighting to each channel. Connect lighting loads to the upper terminal strip positions as indicated by the label in the unit (see page 1).

  • Page 3: Operational Controls

    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.

  • Page 4: Operation

    CIRCUIT BREAKERS AT Series dimmers use a 20 Amp magnetic circuit breaker for each dimmer channel located on the right side of the unit. To operate a channel, the associated circuit breaker must be closed. Channel numbers for the circuit breakers are labeled on the unit.
  • Page 5 Page 5 of 10 AT SERIES ARCHITECTURAL DIMMER Revision 0.3 OWNERS MANUAL 03/16/2020 REMOTE SWITCH CONTROL GENERAL REMOTE SWITCH OPERATION - A SMALL THEATER EXAMPLE During theater operation, the lighting is controlled by external momentary switch closures either manually or by automated equipment.
  • Page 6 Page 6 of 10 AT SERIES ARCHITECTURAL DIMMER Revision 0.3 OWNERS MANUAL 03/16/2020 MANUAL ALL ON / RESUME OPERATION The "All On / Resume" control may be activated by momentary external switch closure between one of the "Common" terminals and the "All On / Resume" terminal of the circuit board Control Terminal Strip. . This function overrides other switched channel controls and DMX input.

  • Page 7: Programming The Unit

    Page 7 of 10 AT SERIES ARCHITECTURAL DIMMER Revision 0.3 OWNERS MANUAL 03/16/2020 PROGRAMMING THE UNIT: The LED's will alternate between the SYMBOL (channel/preset level and preset fade) and its VALUE (intensity and fade time). There are 2 digits and 3 buttons to control everything. Press the NEXT button to advance through each SYMBOL.
  • Page 8 Page 8 of 10 AT SERIES ARCHITECTURAL DIMMER Revision 0.3 OWNERS MANUAL 03/16/2020 TO SET THE INDIVIDUAL PRESET UP/DOWN FADE TIMES (or skip this section).These settings will over-ride the fade up/down settings in the previous section. SYMBOL FUNCTION VALUE Channel 1, Preset A - up fade time...

  • Page 9: Maintenance

    The cabinet should be opened only by a qualified electrician. The only user servicable part in the AT Series dimmer is the Type ABC, ½ Amp, 250 Volt, fast acting fuse The fuse may be replaced ONLY with an identical fuse.

  • Page 10: Warranty

    H) This warranty does not cover the cost of shipping products to or from Lightronics for service. Lightronics Inc. reserves the right to make changes as deemed necessary to this warranty without prior notification.

This manual is also suitable for:

At-402At202At102

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