Ltech LT-912-OLED User manual

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LT-912-OLED
Dimming curve: 0.1~9.9
Short circuit / Over current / Overheat protection
OLED display
8 bit / 16 bit
12
CHANNELS
3 kinds of DMX interfaces Photoelectric
isolation
E500585

Product introduction
Gamma value
DMX value
Output
brightness
Photoelectric
isolation
0
100%
2.5 3.5
6.5
1.0
0.8
0.9
<1
>1
1.5
255
Short circuit
protection
5-pin XLR RJ45 RDM Over current
protection
Display
6. With firmware upgrade function.
8. With power-on state management and fast self-testing function.
5. With the operations can be completed via the
RDM master console, such as parameters browsing & settings, DMX address
settings, equipment recognition, etc.
RDM remote management protocol,
4. 5-pin XLR, RJ45 and green terminal DMX interface with photoelectric isolation, improve
signal transmission efficiency and anti-interference ability, the green terminal also
has signal amplifier function.
2. Easy operation with OLED screen and touch buttons.
1. Designed for Hi-power multiple channels application, 12 channels output, and Max.
4A current per channel, up to 1152W output power.
3. 3 kinds of optional modes available: DIM, CT, RGB.
7.
when a fault occurs.
With short circuit, over current and overheat protection, as well as warning function
10. Available for standard, linear, LOG or customize 0.1-9.9 dimming curve.
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9. 16bit (65536 levels) / 8bit (256 levels) grey level available.
1
Overheat
protection

2
180
156
122
110
39
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Product size
Unit: mm
Technical specs
LT-912-OLED
DMX512/RDM
12~24Vdc
4A × 12CH Max. 48A
(0~48W...96W) × 12CH Max. 1152W
5-pin XLR, RJ45, green terminal
DIM/CT/RGB
0.1~9.9, standard, linear, LOG
8bit (256 levels) / 16bit (65536 levels)
Yes
Short circuit / Overheat / Over current protection,
recover automatically.
-30°C~65°C
180×122×39mm(L×W×H)
193×127×41mm(L×W×H)
730g
Model :
Input signal :
Input voltage :
Current load :
Output power :
DMX interfaces :
Control modes :
Dimming curves :
Grey level :
Photoelectric isolation :
Protection:
Working temperature :
Dimensions :
Package size :
Weight (G.W.) :
5-Year
Warranty
E5 0 05 8 5

3
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Main component description
OLED screen
Power
indicator
Signal
indicator
RJ45
5-pin XLR
12-24V
Power input
dc
Green terminals
(with signal amplifier function)
DMX/RDM input & output
Green terminals
LED lamp connection
DC1 DC2
Powered by DC1
Max. 24A
Powered by DC2
Max. 24A

4
DMX: Hz: High
Mode: RGB 8bit
Curve: Standard
Dim: Smo TOOL&v
001
DMX: 001 Hz:
Mode: RGB 8bit
Curve: Standard
Dim: Smo TOOL&v
High
DMX: 001 Hz: High
Mode: 8bit
Curve: Standard
Dim: Smo TOOL&v
RGB
DMX: 001 Hz: High
Mode: RGB
Curve: Standard
Dim: Smo TOOL&v
8bit
DMX: 001 Hz: High
Mode: RGB 8bit
Curve:
Dim: Smo TOOL&v
Standard
M
<
<
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OLED screen interface
Press "M" key, switch entries.
Long press “M” key, back to main page.
Press "∧" or “∨" key, parameter adjustment.
Exit back to previous page.:
1. DMX address
settings
Main page
Press “∧" or “∨" key to set DMX address.
Range: 001~512
2. PWM frequency
Press “∧" or “∨" key to choose.
Option : DIM
CT/CT2
RGB
3. Modes
No flicker in
video camera.
Press “∧" or “∨" key to choose.
Std (standard)
High
Mid (middle)
Low
Option :
Smooth and exquisite,
human eye is comfortable.
It is recommended to
use standard.
4. Grey scale
5. Dimming
curves
Press “∧" or “∨" key to choose.
Option : 8bit
16bit (choose it if the master
controller supports this function)
Press “∧" or “∨" key to choose.
Option :
Linear
LOG
0.1~9.9
Standard
It is recommended to use standard,
0.1-9.9 is for special requirements.

5
DMX: 001 Hz: High
Mode: RGB 8bit
Curve: Standard
TOOL&v Dim: Smo
Screen: ON+Addr
Contrast: 40%
Beep: ON
EXIT&v
TEST&v
001
DMX: 001 Hz: High
Mode: RGB 8bit
Curve: Standard
Dim: Smo TOOL&v
DMX: 001 Hz: High
Mode: RGB 8bit
Curve: Standard
Dim: Smo TOOL&v
[∧&V]
EXIT &V
ALL: 255
CH01: 255
CH02: 255
CH03: 255 [∧&V]
EXIT &V
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Press “∧" or “∨" key to choose.
Option :
Smo (smooth)
Std (standard)
Smo: This option with smooth processing, realizes
flicker-free dimming and smooth dynamic effects.
It is recommended to use standard.
6. Enhance
dimming
7. Tool
* Fast self-testing function: press “ or " keys
simultaneously for 2-3 seconds under any page,
decoder will enter self-testing function.
∧"∨"
Press “∧" or “∨"
key to enter submenu
Press “∧" or “∨"
key to enter
submenu of test.
Change all value
simultaneously
(on the last page)
Screensaver open and
black if undo for 2 minutes.
Screen: ON+black
Screensaver not enable.
Screen: OFF
Screensaver open and display
address if undo for 2 minutes.
Screen: ON+Addr
Brightness setting
(range: 0~255)
Press”∧" or "∨"
to next page
Press"∨" to exit

LT-912-OLED
LT-912-OLED
6
LEDs
LEDs
1
1
2
2
3
3
4
4
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Wiring diagram
1. Connecting LED lights:
DMX/RDM signal DMX/RDM signal
Output port
(Wiring method on P7)
12-24Vdc
Power to
LEDS1, 2
LED driver
Power to
LEDS3, 4
DMX/RDM signal DMX/RDM signal
12-24Vdc
LED
driver
LED
driver
Power to
LEDS1, 2Power to
LEDS3, 4

7
1
3
2
PUSH
1
3
2
PUSH
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2. DMX console onnectionc :
LT-912-OLED is equipped with 3 kinds of DMX terminals
for users’ selection. The following diagram takes 5-pin XLR
as an example, same connecting method for the rest two:
RJ45 & green terminal (with amplifier function).
DMX
console
DMX signal
If the recoil effect occurs because of longer signal line or bad line quality, please try
to connect 0.25W 90-120Ω terminal resistor at the end of each line.
*
DMX signal DMX signal
12-24Vdc 12-24Vdc 12-24Vdc
RGB LEDs
CT/CT2 LEDs
Color temperature mode
RGB mode
Dimming mode
Dimming LEDs
Resistor
terminal
LT-912-OLED LT-912-OLED LT-912-OLED
R
R
R
CH
CH
CH
1
1
1
2
2
2
3
3
3
G
G
G
B
B
B

8
*
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3. The connection diagram of 3 kinds of DMX/RDM terminals:
5-pin XLR
connected
in parallel
Green terminal
connected
in parallel
Installation distance > 20mm
RJ45
connected
in parallel
These 3 terminals can be connected
in a mixed way.
Resistor
terminal
Resistor
terminal
Resistor
terminal
Vent
*
Installation attention : please reserve enough ventilation distance between decoders (>20mm),
be sure not to block the vent, or it will affect lifetime of decoder for .poor heat dissipation
4. The connection diagram of :AMP signal amplifier terminal
Connecting with green terminal or an extra amplifier will be needed when more than 32
decoders are connected or use overlong signal wire (as shown below). Signal amplifier
should not be more than 5 times continuously.
Resistor
terminal
LT-912-OLED
LT-912-OLED
LT-912-OLED
LT-912-OLED
LT-912-OLED
LT-912-OLED
LT-912-OLED
LT-912-OLED
LT-912-OLED
LT-9 12- O LED LT-91 2 -OL E D LT-9 1 2-OL E D LT-9 12- O LED LT-9 12-O LED LT-9 12- O LED
AMP

9
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Address setting table
Mode Mode
Resolution Resolution
Address
Quantity Address Quantity
Channel Channel
DIM DIM CT/CT2 CT/CT2 RGB RGB
4 88 16
12 24
8bit 16bit 8bit 16bit 8bit 16bit
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
001 001 001
001 002 002
001 002 003
002 003 004
002 004 005
002 004 006
003 005 007
003 006 008
003 006 009
004 007 010
004 008 011
004 008 012
001
002
001
002
001
002
003
004
005
006
005
006
009
010
005
006
005
006
005
006
007
008
007
008
007
008
009
010
011
012
011
012
011
012
013
014
015
016
017
018
001
002
003
004
003
004
003
004
003
004
003
004
001
002
007
008
007
008
013
014
015
016
015
016
019
020
021
022
023
024
007
008
*
When you select CT2, the DMX address represents brightness , color temperature and constant power output respectively.