1 Channel Constant Voltage DMX512 & RDM Decoder
Model No.: D1-L
RDM/Stand-alone function/Seven PWM frequency/Logarithmic or linear dimming/Numeric display/Multiple protection
Features
- Comply with the DMX512 standard protocols.
- Digital numeric display, set DMX decode start address by buttons.
- RDM function can realize intercommunication between DMX master and decoder. For example, DMX decoder address can be set by DMX master console.
- 16bit (65536 levels) / 8bit (256 levels) grey level selectable.
- PWM frequency 250/500/1000/2000/4000/8000/16000Hz selectable.
- Logarithmic or linear dimming curve selectable.
- Stand-alone dynamic mode and dimmer mode selectable, controlled by buttons with built-in programs, instead of DMX signal.
- Over-heat / Over-load / Short circuit protection, recover automatically.
Mechanical Structures and Installations
The D1-L decoder features a compact design with clearly labeled connection terminals. Key components include a digital display and setting buttons. The unit has dimensions of approximately 50mm, 170mm, and 23mm. Connection terminals are provided for DMX IN (GND, D-, D+), DMX OUT (GND, D-, D+), INPUT (V-, V+), and OUTPUT (V-, V+).
Wiring Diagram
The wiring diagram illustrates the connections for the D1-L decoder. A DMX Master connects to the DMX IN terminals (GND, D-, D+). The DMX OUT terminals are also present. The power input, rated for AC 100-240V, connects to the INPUT terminals (Power input +, Power input -, V-, V+). The output terminals (LED Output -, LED Output +, V-, V+) connect to a single-color LED strip. A 12-24VDC Constant Voltage power supply is used.
Technical Parameters
| Category | Details |
|---|---|
| Input and Output | Input voltage: 12-24VDC Input current: 15.5A Output voltage: 12-24VDC Output current: 1CH, 15A Output power: 180-360W Output type: Constant voltage |
| Environment | Operation temperature: Ta: -30°C ~ +55°C Case temperature (Max.): Tc: +75°C IP rating: IP20 |
| Safety and EMC | EMC standard (EMC): ETSI EN 301 489-1 V2.2.3, ETSI EN 301 489-17 V3.2.4 Safety standard (LVD): EN 62368-1:2020+A11:2020 Certification: CE, EMC, LVD |
| Warranty and Protection | Warranty: 5 years Protection: Reverse Polarity, Over-heat, Over-load, Short circuit |
Operation
System parameter setting
System parameters can be configured by simultaneously pressing the 'M' key and the left arrow key (◄) for 2 seconds. Users can then cycle through settings using the 'M' key and adjust values with the left (◄) or right (►) arrow keys. Settings include:
- Output PWM frequency: Selectable from 250Hz ("F02"), 500Hz ("F05"), 1000Hz ("F10"), 2000Hz ("F20"), 4000Hz ("F40"), 8000Hz ("F80"), or 16000Hz ("F16"). Higher frequencies reduce output current and power noise but are better for camera applications to avoid flicker.
- Output brightness curve: Select between linear ("C-L") or logarithmic ("C-E") curves.
- Grey level: Choose between 8-bit ("b08") or 16-bit ("b16") resolution. 16-bit is recommended if the DMX master supports it.
- Default output level: Set the output level (0-100%, "d00" to "dFF") when no DMX signal is present.
- Automatic blank screen: Enable ("bon") or disable ("boF") the automatic blank screen feature.
Pressing the 'M' key for 2 seconds or waiting 10 seconds will exit the system parameter setting.
DMX mode
Press the 'M' key briefly to enter DMX mode, indicated by the display showing "001" to "512". Use the left (◄) or right (►) arrow keys to change the DMX decode start address. Holding the keys allows for faster adjustment. The decoder automatically enters DMX mode if a DMX signal is detected. Each D1-L decoder occupies one DMX address when connected to a DMX console.
Stand-alone dynamic mode
This mode is active when the DMX signal is disconnected or lost. Briefly pressing the 'M' key will display "P-1" to "P-3", allowing entry into stand-alone dynamic mode. Use the left (◄) or right (►) arrow keys to select dynamic mode numbers (P-1 to P-3). Each mode allows independent adjustment of speed and brightness. To set speed and brightness, long-press the 'M' key for 2 seconds. Briefly press 'M' to switch between speed and brightness settings, then use the arrow keys to adjust. Mode speed is adjustable from level 1 to 10 (S-1, S-9, S-F), and mode brightness from level 1 to 10 (b-1, b-9, b-F). Long-press 'M' for 2 seconds or wait 10 seconds to exit settings.
Dynamic mode list:
| No. | Name |
|---|---|
| P-1 | white fade in and fade out |
| P-2 | white jump |
| P-3 | white ash |
Stand-alone dimmer mode
This mode is also active when the DMX signal is disconnected or lost. Briefly pressing the 'M' key will display "L-1" to "L-8", allowing entry into stand-alone dimmer mode. Use the left (◄) or right (►) arrow keys to select dimmer mode numbers (L-1 to L-8). Each dimmer mode allows independent brightness adjustment. To set brightness, long-press the 'M' key for 2 seconds. Use the left (◄) or right (►) arrow keys to adjust the brightness value from b00 to bFF. Briefly press 'M' or wait 10 seconds to quit setting.
Restore factory default parameter
Long-press the 'M' key and the left arrow key (◄) simultaneously for 2 seconds to restore factory default parameters, indicated by "RES" on the display. The factory default settings are: DMX decode mode, DMX decode start address 1, 8-bit grey level, 2000Hz PWM frequency output, logarithmic brightness curve, 100% output level when no DMX input, dimmer mode number 1, and automatic blank screen disabled.
Dimming Curve Setting
The decoder supports two dimming curve settings, visualized in graphs:
- Linear dimming curve: This curve, with Gamma=1.0, shows a direct proportional relationship between brightness (%) and PWM duty (%).
- Logarithmic dimming curve: This curve, with Gamma=1.6, provides a non-linear adjustment, often perceived as smoother dimming at lower brightness levels.
Both graphs plot PWM duty (%) on the Y-axis against Brightness (%) on the X-axis.
Malfunctions Analysis & Troubleshooting
| Malfunctions | Causes | Troubleshooting |
|---|---|---|
| No light | 1. No power. 2. Wrong connection or insecure. | 1. Check the power. 2. Check the connection. |
| Wrong color | 1. DMX decode address error. | 1. Set correct decode address. |
| Uneven intensity between front and rear, with voltage drop | 1. Output cable is too long. 2. Wire diameter is too small. 3. Overload beyond power supply capability. 4. Overload beyond controller capability. | 1. Reduce cable or loop supply. 2. Change wider wire. 3. Replace higher power supply. 4. Add power repeater. |
Notes
- An DMX signal amplifier is needed if more than 32 decoders are connected, or if using an overlong signal line. Signal amplification should not exceed 5 times continuously.
- If a "recoil effect" occurs due to a longer signal line or poor line quality, try connecting a 0.25W 90-120Ω terminal resistor at the end of each DMX signal line.
