Lightronics AS40L User manual

www.lightronics.com
Lightronics Inc. 509 Central Drive, Virginia Beach, VA 23454 tel [phone]
AS40L
4 X 600W COMPACT DIMMER
OWNER’S MANUAL
Version 1.1
02/25/2022

Page 2 of 4
AS40L COMPACT DIMMER
Version 1.1 OWNER’S MANUAL 02/25/2022
www.lightronics.com
Lightronics Inc. 509 Central Drive, Virginia Beach, VA 23454 tel [phone]
DESCRIPTION
The AS40L is a compact 4 channel light dimmer. It
has a maximum capacity of 600 Watts per channel
and a maximum TOTAL load capacity of 2400
Watts. It is supplied with an input power cord which
may be connected to a 120 VAC, 20 Amp power
circuit. The AS40L is intended for INDOOR USE
ONLY. The AS40L is compatible with the industry
standard 3 wire multiplex control signal protocol
(LMX). The AS40L may be operated in a relay (non-
dim) mode. The unit will also function as a stand-
alone chaser and has eight preset chase patterns
which may be used.
INSTALLATION
LOCATION: Locate the unit vertically with control
signal connectors on the bottom in a well ventilated
area away from moisture and heat. Two ½” holes
are provided on one end of the dimmer to install a
lighting bar pipe clamp and suitable safety cables.
POWER CONNECTIONS: Extending from the
chassis is a 20 amp line cord for connection to a 120
VAC, 20 Amp, grounded service. Total capacity of
the AS40L is 2400 watts.
LOAD CONNECTIONS: There is one Edison Plug
connector provided for each AS40L output channel.
They are located along the left and right edges of
the unit. The markings on the cover indicate the
channel numbers for each connection. The
maximum capacity of each channel is 600 watts.
CONTROL SIGNAL CONNECTIONS: The male
three pin "XLR" connector on the end of the unit
connects to your lighting console. The female "XLR"
connector is used to connect to other dimmers.
CONTROL CABLE WIRING: The XLR multiplex
connector pins are wired as follows:
OPERATION
NORMAL MODE (non-chaser)
A green LED in the end panel will indicate that a
valid control signal (LMX) is applied to the unit. A
DIP switch block on the end panel selects the
starting channel number of the dimmer. The 7 right
hand switches (numbered 4 -10) control this
function. For example, if all switch positions are
down - the dimmer will respond to console channels
1-4. Moving the switch position on the far right to up
will set the dimmer to respond to channels 5-8. A
complete table of channel assignments is provided
at the end of this manual.
RELAY MODE: Pairs of channels (1/2 and/or 3/4)
may be switched into the relay mode. In this mode
the output of these channels will be either off or full
on depending on the control console channel
setting. The trip point for turn on is approx. 50%. The
2 left hand switches on the DIP switch block control
relay mode channel selection.
NORMAL MODE SWITCH FUNCTIONS
CHASER MODE
When operating in the chaser mode the AS40L
becomes independent of the control console and
other dimmers. The green LED indicator is OUT
when in the chaser mode. Chaser mode is turned
ADDRESS
NORMAL/CHASER
(DOWN FOR NORMAL)
1/2 DIM/RELAY
3/4 DIM/RELAY
DOWN = DIM
UP = RELAY
Pin # Signal
1 Common
2 Console Power (+15vdc)
3 LMX (multiplex) signal
CHASSIS END VIEW

Page 3 of 4
AS40L COMPACT DIMMER
Version 1.1 OWNER’S MANUAL 02/25/2022
www.lightronics.com
Lightronics Inc. 509 Central Drive, Virginia Beach, VA 23454 tel [phone]
on and off by one of the DIP switches on the end of
the unit. A diagram on the unit cover shows the
switch settings for controlling chaser operation.
Eight different chaser patterns are available. A
“bounce” condition may be imposed on several of
the chase patterns by setting one of the DIP
switches. The bounce condition causes the chase
pattern to run in alternating directions.
The chase step time may be controlled for up to 64
seconds per step. Step fade time is proportional to
the step time. If a channel is in the relay mode
during chaser operation - it will “snap” on and off
(zero fade time). The tables below show the details
of chaser settings.
CHASER MODE SWITCH FUNCTIONS
MAINTENANCE AND REPAIR
TROUBLESHOOTING
•Check that you have power applied to the
dimmer.
•Check that all light fixtures are functional.
•Check the fuses.
•Check the LMX control cable.
•Check the settings of the dimmer DIP switches.
•Check the console setup for correct patching
REPAIR
The only AS–40L user serviceable parts are
externally accessible fuses. Replace fuses ONLY
with 5 Amp, 250VAC, fast blow fuses. Internal
service on the unit by other than Lightronics
authorized agents will void the warranty. If service is
required, contact the dealer from whom you
purchased the dimmer, or Lightronics Service
Department, 509 Central Drive, Virginia Beach, VA
23454. Tel: [phone].
WARRANTY INFORMATION AND
REGISTRATION – CLICK LINK BELOW
www.lightronics.com/warranty.html

Page 4 of 4
AS40L COMPACT DIMMER
Version 1.1 OWNER’S MANUAL 02/25/2022
www.lightronics.com
Lightronics Inc. 509 Central Drive, Virginia Beach, VA 23454 tel [phone]
LMX CHANNEL ASSIGNMENT SETTINGS
The DIP Switch Setting column shows the positions of the DIP switches on the dimmer. The Start Channel
column shows the resulting channel assignment for the first channel of the dimmer
All Lightronics products using DIP switches for LMX address assignments conform to this table.
EXAMPLE: If an LMX dimmer's DIP switches are set to  then the first channel of the dimmer will
respond to LMX channel 45. The remaining dimmer channels will respond to LMX channels 46, 47, 48 …etc.
DIP Switch
Setting
Start
Channel DIP Switch
Setting
Start
Channel
DIP Switch
Setting
Start
Channel
DIP Switch
Setting
Start
Channel
4 5 6 7 8 9 10
4 5 6 7 8 9 10
4 5 6 7 8 9 10
4 5 6 7 8 9 10

1

33

65

97

5

37

69

101

9

41

73

105

13

45

77

109

17

49

81

113

21

53

85

117

25

57

89

121

29

61

93

125