INSTRUCTION MANUAL Page 1 of 4
A
SD - 4102 DMX PORTABLE DIMMER
Version 20090529
4 Channels
4 digit LED display
Power Input: 120VAC, 50/60 Hz, 15 Amps
Power Connector: NEMA 5-15P Edison Plug
Fuse Size: 6.3 Amps each channel
Dimensions: 10.5"H x 8.5"W x 3.0"D
Weight: 5lb 2oz
MAIN FEATURES
GENERAL DESCRIPTION
The SD-4102 is a 4 channel DMX dimmer pack. Each
channel has a maximum capacity of 750 Watts.
The total dimmer load capacity is limited to 1800
Watts.
The SD-4102 can run chase programs independently
of a DMX controller. There are 16 preset programs to
select from. The speed and intensity of chase
programs is user selectable.
INSTALLATION
LOCATION
The SD-4102 is intended for INDOOR USE ONLY.
Locate the unit in a well ventilated area away from
moisture and heat. Various holes are provided on one
end of the dimmer to install a lighting bar pipe clamp
and suitable safety cables.
POWER CONNECTIONS
The SD-4102 has a line cord for connection to a 120
VAC, 15 Amp, 60Hz, grounded service.
1 2 3 4
1
Distributed By
4 Channel DMX Dimmer
POWER REQUIREMENTS
120 VAC, 15 AMPS MAX, 60HZ
OUTPUT CAPACITY
EACH CHANNEL: 750 WATTS MAX (6.3A)
TOTAL LOAD: 1800 WATTS (15A)
FOR INDOOR USE ONLY
CAUTION:
REPLACE FUSES ONLY WITH
SIZE AND TYPE SUPPLIED
2 3 4
RISK OF FIRE
MODE FUNCTION DISPLAY
DMX
CHASE
DMX
SIGNAL
MODE
DMX Channels
DMX Address
Program #
Speed
Dim
2341
MENU
WARNI NG
RISK OF
ELECTRIC SHOCK
DO NOT OPEN
CH:01 / CH:02 / CH:04
001 thru A512
P:01 thru P:16
SP:01 thru SP:99
d000 thru d100
EXT
CHASE
LOAD CONNECTIONS
There is a dual edison socket connector provided for
each channel. Markings on the cover indicate the
channel numbers for each connection. The maximum
capacity of each channel is 750 Watts.
DMX CONNECTIONS
A system using DMX control should be connected as a
chain of devices. In other words the control signal
cable should proceed from the controller to the first
dimmer and then to other dimmers in a continuous
"daisy chain" fashion. Most dimmers have a DMX IN
and a DMX OUT connector to be used to connect the
chain. The control cable should NOT be split into a
multiple run star arrangement with a cable running
from the controller directly to each dimmer pack.
DMX CONNECTOR PIN ASSIGNMENTS
There are two different connectors which can be used
for DMX control. They are both XLR type connectors.
Some units use 3 pin connectors. Others use 5 pin
connectors. The SD-4102 receives a DMX signal on
the 3 pin MALE connector on the end of the unit. The
3 pin FEMALE connector is used to continue the
signal on to additional DMX dimmer packs.
INSTRUCTION MANUAL Page 2 of 4
SD - 4102 DMX PORTABLE DIMMER
Version 20090529
If your console uses a 5 pin connectors then you can
make up an adapter cable to accommodate this. The
table below shows the pin assignments for BOTH the 3
pin and 5 pin connectors.
DMX TERMINATION
PIN # SIGNAL NAME
1 DMX COMMON
2 DMX DATA 3 DMX DATA +
4 NOT USED
5 NOT USED
A DMX chain should be terminated at the last fixture
(and ONLY the last fixture) on the chain. This is done
by installing a commonly available 1/4 Watt, 120 Ohm
resistor across the DATA - and DATA + wires at the
last fixture. If you have only a few fixtures very close
together and a very short run to the controller then you
may be able to operate without the terminator.
OPERATION
CAUTION The SD-4102 can become
HOT when operating. Allow the unit to
cool before handling it
An ON/OFF switch is provided on the lower end of the
SD-4102. It controls all power to the unit.
The SD-4102 operates either with external DMX
control or independently in the chase mode. A
DMX
signal indicator in the LCD display will flash
continuously anytime a DMX signal is present.
There is a LED indicator for each dimmer channel
which shows the current channel intensity.
CHANNEL ASSIGNMENTS
The SD-4102 can be set to start at any DMX channel
(1 thru 512). This is done by setting the units starting
address. The starting address determines the DMX
address of channel one. The other 3 channels will
normally be the next 3 consecutive channel numbers.
The behavior of channels 2, 3, and 4 can be altered by
COMBINING CHANNELS as described in this manual.
SETTING THE STARTING ADDRESS:
During DMX (external control) operation the DMX
channel starting address for the unit is shown on the
LCD display prefixed with
A.
Use the and buttons to change the address. The
starting address for DMX channel five would appear
on the display as
A005.
COMBINING CHANNELS
The SD-4102 can operate as four independent dimmer
channels, two pairs of channels, or as a single channel.
TO CHANGE THE CHANNEL COMBINE SETTING:
1. Push MENU.
2. The current setting will be shown prefixed by CH:.
Use the and buttons to select
independent channels,
channels each, or
CH:02 for two pairs of two
CH:01 to make the unit run with
CH:04 for four
all four channels acting together.
OPERATING MODES
The operating mode is controlled by the MODE button.
You can switch between external and chase modes at
any time.
EXTERNAL MODE (DMX CONTROL) OPERATION
Operation is automatically controlled by an external
DMX signal from a lighting console when the unit is in
the external mode.
The EXT indicator in the LCD display is on when in
external mode. The
DMX SIGNAL indicator in the
display will be flashing if a DMX signal is present.
CHASE MODE OPERATION
Chase mode provides the ability to automatically run
one of 16 chase programs. The
CHASE indicator on
the LCD display will be on in chase mode. The DMX
signal is ignored in chase mode.
You can control the speed and intensity of chase
programs. Speed and intensity settings apply to all
chase programs.
TO SELECT A CHASE PROGRAM
1. Push MODE to switch the unit to chase mode.
The LCD display will show which chase program
is active preceeded with
would be shown as
P:. Chase program 12
P:12.
2. Use the and buttons to select any other chase
program. It will become active immediately.
INSTRUCTION MANUAL Page 3 of 4
SD - 4102 DMX PORTABLE DIMMER
Version 20090529
TO SET THE CHASE SPEED
1. Push MODE to switch the unit to chase mode.
2. Push MENU once to access chase speed selection.
The current speed selection will be shown on the
LCD display preceed by
from
SP:01 which is about 30 seconds per step to
SP:99 which is about 10 steps per second. A speed
of about 1 sec./step would be shown as
SP:. The speed ranges
SP:75.
3. Use the and buttons to make the chase run
faster or slower.
TO SET THE CHASE INTENSITY
1. Push MODE to switch the unit to CHASE mode.
2. Push MENU twice to access intensity selection.
The current intensity (0% - 100%) selection will be
shown on the LCD display preceed by
intensity selection of full would be shown as
D. An
D100.
3. Use the and buttons to make the intensity
brighter or dimmer.
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 DMX control cable.
Check the address settings of the dimmer and the
controller.
REPAIR
CAUTION DO NOT OPEN UNIT
RISK OF ELECTRIC SHOCK
RISK OF FIRE
The only SD-4102 user serviceable parts are externally
accessible fuses. Replace fuses ONLY with 6.5 Amp,
125VAC, 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 contact the Lightronics, Service
Department, 509 Central Drive, Virginia Beach, VA
23454. Tel: 757 486 3588.
W
Y
All products are warranted for a period of TWO YEARS from the date of
purchase against defects in materials and workmanship.
ARRANT
This warranty is subject to the following restrictions and conditions:
A) If service is required, you may be asked to provide proof of purchase from an authorized
Lightronics dealer.
B) This warranty is valid only for the original purchaser of the unit.
C) This warranty does not apply to damage resulting from abuse, misuse, accidents, shipping,
and repairs or modifications by anyone other than an authorized Lightronics service
representative.
D) This warranty is void if the serial number is removed, altered or defaced.
E) This warranty does not cover loss or damage, direct or indirect arising from the use or
inability to use this product.
F) Lightronics reserves the right to make any changes, modifications, or updates as deemed
appropriate by Lightronics to products returned for service. Such changes may be made
without prior notification to the user and without incurring any responsibility or liability for
modifications or changes to equipment previously supplied. Lightronics is not responsible
for supplying new equipment in accordance with any earlier specifications.
G) This warranty is the only warranty either expressed, implied, or statutory, upon which the
equipment is purchased. No representatives, dealers or any of their agents are authorized
to make any warranties, guarantees, or representations other than expressly stated herein.
H) This warranty does not cover the cost of shipping products to or from Lightronics for
service.
I) Lightronics Inc. reserves the right to make changes as deemed necessary to this warranty
without prior notification.
Lightronics Inc. 509 Central Drive Virginia Beach, VA 23454 20080205
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