Download • 3/4 Channel DMX or Stand Alone LED Dimmer

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MiniDim3/4
3/4 Channel DMX or Stand Alone LED Dimmer
DMX-512 or Trim Potentiometer Adjustable
Selectable Pulse Width Modulation Frequency
Liquid-Tungsten© Brightness Slewing
The MiniDim3 or 4 has a total system capacity of 5 amps – this capacity can be
used any way you wish across the outputs, as long as you don't exceed the total
available 5 amps. The controlled output to the LEDs is via an output screw barrier
strip -RGB or RGBW (+) (-) labeled. The DC input is via a standard "Barrel"
connector (2.1mm center pin) or a 2 conductor screw barrier strip - your choice,
and DMX is using RJ45’s or 3 conductor screw barrier strip - your choice again.
Reset to Factory Default modes:
DMX address: 999 then press the learn switch
LED Power: Externally supplied, 8-24 Volts DC.
Transient voltage suppression engages at 25 volts.
Leds must include current limiting resistors or constant current circuitry.
***NOTE: LED’s must be capable of operation at the fixed voltage of the DC power supply attached***
DMX-512
Is connected using the RJ-45 connectors, or (if requested) the three conductor screw down barrier
strip mounted on the circuit board.
***Uses standard (not crossover) Ethernet cables***
DMX Address is selected using the 3 Rotary Switches
Channel 1 will be controlled at the address shown on the rotary switches
Channel 2 will be controlled at the address chosen by the rotary switches plus 1
Channel 3 will be controlled at the address chosen by the rotary switches plus 2
Channel 4 will be controlled at the address chosen by the rotary switches plus 3
RJ45 Position
001
010
100
Fuse Holder Position
Note the Shaft Arrows: Address is set to 990
Selectable Modes
This requires the operator to set the rotary (DMX) switches to numbers above a valid DMX address,
and then press the “Learn” momentary switch to store the new operational mode into non-volatile
memory. From that point on, the selected modes will be in effect - unless changed manually. After
programming the desired modes, choose a valid DMX address (001-512) or 000 to operate.
***The momentary switch is accessible via a small hole in the sheet metal cover, between
the output connections and the DMX selector switches (near the chassis wall).***
Liquid-Tungsten© Brightness Slew
Changing brightness quickly may not be the desired look. Liquid Tungsten is a software package
that smoothes out the DMX steps, to make a LED act as if it were a quartz lamp.
Liquid Tungsten© Brightness Slew Rate modes:
DMX address: 800 Fastest
DMX address: 801 *(Default)
DMX address: 802
DMX address: 803
DMX address: 804 Slowest
Pulse Width Modulation Base Frequency modes:
DMX address: 901
DMX address: 902
DMX address: 903
DMX address: 904
250 HZ
500 HZ
1000 HZ *(Default)
4000 HZ
Channel to DMX Address modes:
DMX address: 701 *(Default)
Ch-1 is controlled at the DMX address chosen, Ch-2 is controlled at the address chosen + 1, Ch-3 is
controlled at the address chosen + 2, and Ch-4 is controlled at the address chosen + 3 (MiniDim4)
DMX address: 702
All three/four outputs are controlled at the DMX address chosen.
DMX address: 703
Ch-1 is at the DMX address, Ch-2 is at the next address, (Ch-3 & Ch-4) are at the next address.
DMX address: 704
USITT DMX-512 (16-bit resolution) Two DMX addresses used per channel.
Ch-1 is at the first two DMX addresses, Ch-2 is at the next two DMX addresses,
Ch-3 is at the next two DMX addresses, Ch-4 is at the next two DMX addresses. (MiniDim4)
***Note: To give the most user control, Liquid Tungsten is disabled in this mode***
Digital Output modes: Dim or Non-Dim
This changes the output from Pulse-Width-Modulation (PWM), to full On or Off (Digital).
This can be used to drive an external relay or similar device.
DMX data below 50% is off, above 50% is on.
DMX address: 731
DMX address: 732
DMX address: 733
DMX address: 734
Ch-1 to Digital
Ch-2 to Digital
Ch-3 to Digital
Ch-4 to Digital
(MiniDim4)
DMX address: 721
DMX address: 722
DMX address: 723
DMX address: 723
Ch-1 to PWM *(Default)
Ch-2 to PWM *(Default)
Ch-3 to PWM *(Default)
Ch-4 to PWM *(Default)
(MiniDim4)
DMX indicator LED
(position)
4
3
2
1
Fuse Holder
(position)
Stand Alone / Master
With the rotary switch’s at DMX address zero (0 0 0), the three/four trim pots control the level of
their corresponding output channel.
Status Led
The “DMX Status indicator LED” shines through an opening in the sheet metal located behind the
RJ-45(s)/3-pin screw barrier strip. The green LED lights when DMX is present.
***Note: this does not confirm the quality of the DMX signal***
Demo modes: (subject to change per requests)
No “Learn” switch press is required to set a Demo mode. Simply set the DMX address to go into
Demo mode you wish. Ch-4 is only available on the MiniDim4
Demo mode 1. Ch-1, 2, 3, 4 Overlapped Smooth Up-Down Chase, all up, then down, Repeat.
DMX address: 990
DMX address: 991
Demo mode 1, Speed is set by Potentiometer #2.
Demo mode 1, Fixed speed.
Demo mode 2. Color dissolve, Trim Pot #3 controls the dimming of Channel #4’s output
DMX address: 992
DMX address: 993
Trim Pot #2 adjustable, faster speeds.
Trim Pot #2 adjustable, slower speeds
Demo mode 3. Channel Step, Trim Pot #2 controls the speed of stepping
DMX address: 994
DMX address: 995
CH1 > CH2 > CH3 > CH4 then start again
CH4 > CH3 > CH2 > CH1 then start again
Demo mode 4. Up/Down bar-graph, Trim Pot #2 controls the speed of stepping
DMX address: 996
DMX address: 997
CH1 > CH1+CH2 > CH1+CH2+CH3 > CH1+CH2+ CH3+CH4 then back out
Same as 996 except at a non-adjustable speed
Demo mode 5. Snake Chase, Trim Pot #2 controls the speed of stepping
DMX address: 998
Black > CH1 > CH1+CH2 > CH1+CH2+CH3 > CH1+CH2+CH3+CH4 >
CH2+CH3+CH4 > CH3+CH4 > CH4 > [Start again at Black]
WARNING
Do not supply less than 8 volts DC or more than 24 volts DC.
Higher voltage will cause damage to the Transient Voltage Suppression.
Using voltages outside 8-24 Volts DC will void the warranty.
Operating Power
Derived from external DC power supply. Control circuitry uses approximately 100ma.
Fuse
The DC power supply input is fused at a Maximum of 7.5 AMP MTA (automotive style fuse).
MiniDim3/4s are shipped with a MTA 5 fuse installed
Wiring
LED power output connections are made using captive screw terminals.
The circuit board has labels defining the input and outputs, including polarity
RJ-45 connectors
Pin-1 DMX (+)
Pin-2 DMX (-)
Pins 7 & 8 DMX GND
Pins 3, 4, 5 & 6 are pass through.
Operating Temperature
-20-122°F / -28-50°C
Finish
Enclosure: Aluminum - Black Powder Coat Paint
Dimensions (H x W x L)
MD3 1” x 1.75” x 5.25”
MD4 1” x 2.125” x 5.5”
Weight
Approx. 1/3 Lbs.
Operating Humidity
5-95%, (Non-Condensing)
USER INFORMATION
DO NOT ATTEMPT TO INSTALL OR USE the MiniDim3/4 UNTIL YOU READ AND
UNDERSTAND THE INSTALLATION INSTRUCTIONS AND SAFETY LABELS. IT IS THE
RESPONSIBILITY OF THE CONTRACTOR, INSTALLER, PURCHASER, OWNER AND
USER TO INSTALL, MAINTAIN AND OPERATE MiniDim3/4 IN SUCH A MANNER AS TO
COMPLY WITH ALL STATE AND LOCAL LAWS, ORDINANCES, REGULATIONS AND
THE AMERICAN NATIONAL STANDARDS INSTITUTE SAFETY CODE.
DO NOT MODIFY OR ALTER THE MiniDim3/4.
CONFIRM THE VOLTAGE/CURRENT OF THE DC POWER SUPPLY REQUIRED FOR THE
LED’S TO BE CONTROLLED.
8-24 VOLT DC ONLY!! OPERATE WITHIN SPECIFIED DC VOLTAGE.
ENSURE THAT POWER IS DISCONNECTED BEFORE INSTALLING, WIRING OR
SERVICING. DO NOT HOT SWAP. ENSURE THE MiniDim3/4 IS OFF BEFORE
CONNECTING OR DISCONNECTING FIXTURES.
BLOWN FUSES CAN BE REPLACED WITHOUT REMOVING COVER.
SHUT POWER OFF BEFORE REPLACING FUSES
USE ONLY RECOMMENDED FUSES. REPLACE WITH SAME RATED FUSE
MOUNTING TABS PROVIDED ON BOTTOM OF CHASSIS – TO THE LEFT & RIGHT OF
CIRCUIT BOARD USE TWO #6 SCREWS
INSTALLATION OF THE MiniDim3/4 MUST BE DONE WHILE CONFORMING TO ALL
APPLICABLE NEC AND LOCAL ELECTRICAL AND SAFETY STANDARDS. THE POWER
SUPPLY CONNECTED TO THE MiniDim3/4 MUST BE UL OR ETL LISTED. ONLY
QUALIFIED PERSONNEL SHOULD BE ALLOWED TO PERFORM INSTALLATIONS.
FOR EXTERIOR USE, THE MiniDim3/4 MUST BE ENCLOSED IN WATER RESISTANT
ENCLOSURE. CONSULT FACTORY.DAMAGE BY CORROSION WILL NOT BE HONORED
AS A MATERIALS DEFECT CLAIM. IT IS THE USER’S RESPONSIBILITY TO PROVIDE
SUITABLE PROTECTION AGAINST CORROSIVE AGENTS SUCH AS MOISTURE AND
CONDENSATION AND OTHER HARMFUL ELEMENTS.
THE INSTRUCTIONS AND PRECAUTIONS SET FORTH IN THIS USER GUIDE ARE NOT
NECESSARILY ALL-INCLUSIVE, OR RELEVANT TO ALL APPLICATIONS AS EVENT
SYSTEMS, INC. CANNOT ANTICIPATE ALL CONCEIVABLE OR UNIQUE SITUATIONS.