Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of the eldoLED OPTOTRONIC OTi 85W Programmable Linear LED Drive. Please read this manual thoroughly before using the product to ensure safe and efficient operation.
The OPTOTRONIC OTi 85W Programmable Linear LED Drive is designed for advanced LED lighting applications, offering features such as programmable output, dimming capabilities, and robust protection mechanisms. It serves as a direct replacement for the OSRAM 57420 model LED driver.
Product Overview
The eldoLED OPTOTRONIC OTi 85W is a high-performance programmable linear LED driver. Key features include:
- Synchronize ON/OFF Timing and Dimming Controls: This feature meets efficacy requirements and ensures consistent dimming levels across multiple luminaires and individual luminaires that require multiple drivers.
- True 1% Dimming: Architectural LED drivers support 1% dimming across the entire driver programmable output current range for True 1% dimming. For example, if a driver is programmed to 300mA, then at 1% dimming, output current would be 3mA.
- DIM-to-OFF: DIM-to-OFF enables luminaires to smoothly transition from DIM-to-OFF and save energy without needing additional control equipment to turn off the fixture. Select architectural-grade LED drivers offer DIM-to-OFF and have a programmable AUX power output option to power and extend DIM-to-OFF capability to fixture-integrated sensors and controls.
- Dimming Interface Protection: The dimming circuit in an OPTOTRONIC linear driver have protection against AC line voltage (120-277Vac) in the event that the driver is mis-wiring during field installation. When a mis-wired driver is powered up, the driver will provide a visual signal that indicates a potential wiring error.
- Constant Lumen Maintenance: The Constant Lumen Maintenance feature of the OTi 85W helps to maintain the required lumen output of the fixture at a constant level throughout its lifetime. This helps in energy savings, constant light output and enhanced reliability of the system.
- Replacement for OSRAM 57420: Direct compatibility with existing systems.
Figure 1: eldoLED OPTOTRONIC OTi 85W Programmable Linear LED Driver. This image shows the compact, rectangular form factor of the LED driver, highlighting its robust casing and connection points.
Technical Specifications
Detailed specifications for the OPTOTRONIC OTi 85W LED Driver are provided below. For a complete overview, refer to the technical data sheet.
Figure 2: Technical Specifications Sheet. This image displays a detailed table of electrical characteristics, dimming parameters, and environmental conditions for the OTi 85W driver, including input voltage, output current, efficiency, and temperature ranges.
| Feature | Value |
|---|---|
| Brand | LLS (eldoLED) |
| Model Name | OPTOTRONIC® OTi 85W Programmable Linear LED Driver |
| Wattage | 85 Watts |
| Voltage | 120-277 Volts (AC) |
| Dimming | Dimmable (True 1% Dimming) |
| Dimensions (L x W x H) | 16.73 x 1.15 x 1 inches |
| Average Life | 50,000 Hours |
Installation and Setup
Proper installation is crucial for the safe and optimal performance of the LED driver. Always ensure power is disconnected before beginning any installation work.
Wiring Diagram
Refer to the following diagrams for correct wiring configurations. Use solid copper wire only, 16-20 AWG. Strip all wires approximately 5/16" (7.94mm).
Figure 3: Wiring Diagram. This diagram illustrates the connection points for both AUX output models and non-AUX output models, detailing connections for Line, Neutral, LED+, LED-, GND, DIM+, and DIM- wires. It also specifies wire gauge and strip length.
- Input Connections: Connect Black to Line, White to Neutral, and Green to Ground (GND).
- Output Connections: Connect Red to LED+, Blue to LED-.
- Dimming Connections: Connect Purple to DIM+ and Pink to DIM-.
- AUX Output (if applicable): Yellow to Vaux Out and Brown to DGND. Note that Yellow is '+' polarity and Brown is '-' polarity.
- Maximum suggested remote mounting distance is 16 feet.
- For wiring the output ports for the LED load, Vaux and DIM wire, 16 to 22 AWG is acceptable for use.
Mechanical Installation
The driver should be mounted securely in a suitable enclosure, ensuring adequate ventilation to prevent overheating. Refer to the mechanical diagram for mounting dimensions.
Figure 4: Mechanical Diagram. This diagram provides precise measurements for the driver's length, width, height, and mounting hole locations, essential for proper physical integration into a lighting fixture.
| Measurement | Value |
|---|---|
| Length | 16.73" (425mm) |
| Width | 1.15" (29.4mm) |
| Height | 1.0" (25.4mm) |
| Mounting Length | 16.34" (415mm) |
Operating Instructions
The OPTOTRONIC OTi 85W driver is designed for seamless operation once properly installed. Its programmable features allow for customized lighting behavior.
Dimming Functionality
The driver supports 0-10V dimming, with true 1% dimming capability. This allows for fine control over light output.
Figure 5: Dimming Curve. This graph illustrates the relationship between dimming voltage and percentage of output current, showing both 1% and 10% dimming performance, crucial for understanding light level control.
Programmable Features
The driver's output current, dimming levels, and other parameters can be programmed using compatible software and tools. This allows for optimization based on specific LED load and application requirements.
- Output Current: Programmable from 700-2300mA (1mA step).
- DIM-to-OFF: Can be enabled or disabled via programming.
- Soft Start: Programmable feature for gradual light turn-on.
- Constant Lumen Maintenance: Adjusts output over time to maintain consistent light levels.
Maintenance
The OPTOTRONIC OTi 85W LED driver is designed for long-term reliability and requires minimal maintenance. However, periodic checks can help ensure continued optimal performance.
- Cleaning: Ensure the driver and its surroundings are free from dust and debris to maintain proper heat dissipation. Use a dry, soft cloth for cleaning. Do not use liquid cleaners.
- Connections: Periodically inspect all wiring connections to ensure they are secure and free from corrosion. Loose connections can lead to intermittent operation or failure.
- Environmental Conditions: Verify that the operating environment remains within the specified temperature and humidity ranges (refer to Technical Specifications).
- Thermal Management: Ensure that the fixture or enclosure provides adequate airflow around the driver to prevent overheating. The driver features LED Thermal Protection (NTC) characteristic to reduce output current in abnormal temperature conditions.
Figure 6: LED Thermal Protection (NTC) Characteristic. This diagram illustrates how an NTC thermistor can be connected to the LED power supply to enable thermal protection, showing the wiring and a graph of % of output current vs. R_NTC in kΩ, demonstrating current reduction at higher temperatures.
Troubleshooting
This section provides solutions to common issues encountered with the OPTOTRONIC OTi 85W LED driver. If the problem persists, contact technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| LEDs not turning on | No input power; Incorrect wiring; Faulty LED load; Driver failure. | Check power supply; Verify all wiring connections (refer to Wiring Diagram); Test LED load separately; Replace driver if necessary. |
| LEDs flickering or unstable light output | Loose connections; Incompatible dimmer; Overheating; Incorrect programming. | Secure all connections; Ensure dimmer is 0-10V compatible; Check for proper ventilation; Verify driver programming. |
| Driver indicates wiring error (visual signal) | Mis-wiring of dimming interface to AC line voltage. | Immediately disconnect power. Re-check dimming circuit wiring against the diagram to ensure no AC line voltage is connected to dimming terminals. Correct wiring before re-applying power. |
| Dimming not working or inconsistent | Incorrect dimming wiring; Incompatible dimmer; Dimmer not properly configured; Driver not programmed for dimming. | Verify dimming wire connections (Purple to DIM+, Pink to DIM-); Ensure 0-10V dimmer is used; Check dimmer settings; Confirm driver programming enables dimming. |
| Reduced light output over time | LED degradation; Driver operating outside optimal conditions; Constant Lumen Maintenance not enabled. | This is normal LED behavior, but ensure Constant Lumen Maintenance is enabled if desired. Verify operating temperature. |
Warranty and Support
Warranty Information
This eldoLED OPTOTRONIC OTi 85W Programmable Linear LED Driver is covered by a standard manufacturer's warranty. Please refer to the official eldoLED warranty policy for specific terms and conditions, including duration and coverage details. Typically, LED drivers carry a warranty against defects in materials and workmanship under normal use and service.
- Warranty applicable only for use at 85°C.
- 2-6kV transient protection for high-bay (HB) models.
Customer Support
For technical assistance, troubleshooting, or warranty claims, please contact LLS customer support. When contacting support, please have your product model number (OTi85/120-277/2A3/DIM-1 L) and purchase information readily available.
Manufacturer: eldoLED
Brand: LLS
For additional resources and documentation, visit the official eldoLED website or contact your local distributor.