Ltech LT-311 User manual

LT -311 Multi-functional LED Dim Controll V2.0 Page 1 of 9er
LT-311
LED Dim controller
V2.00
USER INSTRUCTIONS

LT -311 Multi-functional LED Dim Controller V2.0 Page 2 of 9
，Forword，
Thanks for choosing our LT-311 Dim Controller. Before installation and use, we
strongly recommend you to read through this manual carefully. If device has
been damaged during transport, please report it to your supplier immediately.
on’t take any action without contacting your supplier first.
Please d
，After-sales Service，
From the day you purchase our products within a year, if being used properly
in accordance with the instruction, and quality problems occur, we provide free
repair or replacement services except the following cases:
1. Any defects caused by wrong operations..
2. Any damages caused by unauthorized removal, maintenance, modifying
circuit, incorrect connections and replacing chips.
3. Any damages due to transportation, vibration etc after the purchase.
4. Any damages caused by earthquake, fire, lightning strike, pollution and
abnormal voltage.
5. Any damages caused by negligence, inappropriate storing at high
temperature and humidity environment or near harmful chemicals.
6. Product has been updated
，
Safety Warnings，
1. Please don’t install this controller in lightening, intense magnetic and
high-voltage fields.
2. To reduce the risk of component damage and fire caused by short circuit,
make sure correct connection
3. Always be sure to mount this unit in an area that will allow proper
ventilation to ensure a fitting temperature.
4. Check if the voltage and power adapter suit the controller & if anode or
cathode definition is the same as the controller’s.
5. Don’t connect cables with power on, make sure a correct connection and
no short circuit checked with instrument before power on.
6. Please don’t attempt any repairs yourself; doing so will void your
manufactures warranty.
For update information, kindly please consult with your supplier.

LT -311 Multi-functional LED Dim Controller V2.0 Page 3 of 9
Product Brief
LT-311 multi-functional LED Dim controller is dedicated to control single
color changes (common anode), LED lamp’s brightness and synchronic color
changing effect. Extensively used in all kinds of LED lighting decoration.
If used together with our LT-3060 power amplifier，each can control twice
the quantity of LED lights by every adding one more, which can achieve the
unlimited output power repeating.
.ⅠTechnical Spec
Model：LT-311
Input voltage：DC5V-DC24V Speed：8 Levels
Output current：6A/CH×3CH BRT adjust：64 Levels
Output power：1～90W(5V) Working
Temp：-35℃－55℃
1～220W(12V) 1～450W(24V) Cover
Size：L211×W40×H30(mm)
Changing mode：8 Modes Package
Size：L215×W43×H33(mm)
Color depth：256 levels per R,G &BGW：180g
.ⅡFeatures
1、Auto switch to LED lights with voltage from DC5-24V,
2、ON/OFF button function available,
3、3-Channel RGB full color control, maximum outputs 6Aper Channel,
4、Speed of each mode is adjustable separately from 1-8 level, and the
color depth can be 256 levels,
5、Three color changing modes for choice: color strobe, color skipping
and color gradual, 8 levels speed changing,
6、5 easy brightness selecting function, 64 levels brightness gradual

LT -311 Multi-functional LED Dim Controller V2.0 Page 4 of 9
adjustment,
7、0%、25%、50%、75%、100% brightness easy select,
8、3 DIY modes,
9、Remote controllable（option）.
Ⅲ. Size
Ⅳ.Tables of changing modes
Sequence Modes Description
1 Static brightness 1 0% brightness，support BRT adjustment
2 Static brightness 2 25% brightness，support BRT adjustment
3 Static brightness 3 50% brightness，support BRT adjustment
4 Static brightness 4 75% brightness，support BRT adjustment
5 Static brightness 5 100% brightness，support BRT adjustment
6 Color strobe 8 levels speed adjustment,

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7 3 CH color
skipping 8 levels speed adjustment,
8 Gradual dark and
gradual bright 8 levels speed adjustment,
Ⅴ. Operating instructions
The controller has 7 function keys:
ON/OFF、MODE、BRT/ SPEED+、BRT/ SPEED-、DIY1、DIY2、
DIY3
Sign Button Description
ON/OFF
on/off key：start or turn off the controller
At the Off status, press any key to start
the controller
MODE Mode key: press it to enter into next mode
BRT/ SPEED+
BRT/ SPEED+:
press it at the BRT status to increase the
brightness，
press it at the Speed status to increase the
speed

LT -311 Multi-functional LED Dim Controller V2.0 Page 6 of 9
BRT/ SPEED-
BRT/ SPEED-:
press it at the BRT status to decrease the
brightness，
press it at the Speed status to decrease the
speed
DIY1
DIY1：Press it for 3 seconds，LED flashes
twice，and then remember the current
brightness or color changing effect and
speed, just press it once then enter into
pre-setup status
DIY2
DIY 2：The same as above
DIY3
DIY 3：The same as above
.ⅥConnecting scheme
1. Take single color LED Module as an example as follows

LT -311 Multi-functional LED Dim Controller V2.0 Page 7 of 9
2. Collect to single color high power LED lamps, the controller provides
controlling signals only; the lights need extra power based on the specific
working voltage of the lights. Each controller theoretically can control
unlimited quantity of the lamps.
（The high power lights must have built-in constant PWM current driving
circuit）
.ⅦIf one controller is not enough, you can add a 3060
power amplifier to amplify the output.
Bellow are three common methods of connecting. And the three
methods can be mixed up. If you don’t need the color skipping function,
there only need one in-phase anode wire and one in-phase cathode
wire between the controller and the amplifier.
1、Method One：All amplifiers connected to the main power

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2、Method Two：Connect the controller and the amplifier by a method of
“hand in hand”.
3、Method Three：The LED modules are followed by amplifiers in series.

LT -311 Multi-functional LED Dim Controller V2.0 Page 9 of 9
Ⅷ. Exception Handles
Malfunction Causation Settle
No Light
1、No power from plug
2、Power supply
protector works
1、Check the socket
2、Check the malfunction，
re-power on
3、Incorrect connection 3、Check connection
Incorrect color
Amplifier not in
phase
4、Incorrect RGB output
wire connection
4、Re-connect RGB wires
correspondently
8、reduce wire length or use
loop circuit to power on
5、Output wire too long
LED BRT is not
smooth or even 6、Wire diameter too thin
7、Overload beyond
controller capability
9、Calculate the current and
change to a thicker wire
7,Change the power supplier
or add a power amplifier