Osram OTi50W Leitfaden

READ AND FOLLOW ALL SAFETY INSTRUCTIONS

1. This product is for use with an LED lighting load and supplies up to 10W of power at factory

programmed current with a voltage between 10.0 VDC and 55.0 VDC in emergency mode for

a minimum of 90 minutes.

2. Make sure all connections are in accordance with the National Electrical Code, Canadian

Electrical Code and any local regulations.

3. To reduce the risk of electric shock, disconnect AC power of the emergency driver and fuse

from fuse holder of the battery pack before servicing.

4. This emergency driver is suitable for factory and field installation. For field installation, please

see the instructions on page 3.

5. This product is suitable for damp locations where the driver case temperature is 75°C maximum

and battery pack case temperature is 55°C maximum.

6. Do not use for outdoor applications.

7. Product is not suitable for heated air outlets and wet or hazardous locations.

8. Do not install near gas or electric heaters.

9. The use of accessory equipment not recommended by the manufacturer may cause an unsafe

condition.

10. Do not use this product for other than intended use.

11. Equipment should be mounted in locations and at heights where it will not readily be subjected

to tampering by unauthorized personnel.

12. Servicing should be performed by qualified service personnel.

13. Use caution when servicing batteries.

SAVE THESE INSTRUCTION

THIS PRODUCT CONTAINS A RECHARGEABLE NICKEL-CADMIUM

BATTERY. THE BATTERY MUST BE RECYCLED OR DISPOSED

PROPERLY.

IMPORTANT SAFEGUARDS

WHEN USING ELECTRICAL EQUIPMENT, BASIC SAFETY PRECAUTIONS SHOULD

ALWAYS BE FOLLOWED, INCLUDING THE FOLLOWING:

OTi50W Slim Emergency Driver

Installation and Troubleshooting Guide – P/N 57413

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Normal Mode Operation

When AC power is applied, the driver is in normal mode where the output current is at the

programmed setpoint. The Illuminated Test Switch light is ON (not flashing) indicating the batteries

are being charged.

Emergency Mode Operation

When power fails, the emergency driver automatically switches to emergency power, operating the

emergency LED load at required illumination. When the AC power is restored, the emergency driver

returns to the Normal Mode of Operation. This emergency driver will operate an LED lighting load with

a voltage between 10.0 VDC and 55.0 VDC and up to 10W of output power. The LED driver ensures

that there is light output for a minimum of 90 minutes.

Test Switch

The below illustration shows the test switch that is provided as an accessory with the Emergency

driver.

Figure 1: 3-Wire Illuminated Test Switch

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Figure 2: Test Switch mounting hole dimension

Installation Instructions

CAUTION:

DO NOT CONNECT BATTERY PACK TO DRIVER

UNTILL ALL INSTALLATION & WIRING IS COMPLETE. AFTER

INSTALLATION & WIRING COMPLETE, CONNECT BATTERY PACK TO

DRIVER BEFORE APPLYING AC POWER.

NOTE: Make sure the necessary branch circuit wiring is available. An unswitched source of power is

required and must be from the same branch circuit.

This product is suitable for field installation with suitable LED loads including LED luminaires, DC

voltage driven LED replacements for fluorescent lamps and others. There are a set of checks that

need to be carried out to determine if your luminaire is eligible for field installation.

1. Ensure the LED load’s rated power/current is greater than or equal to the Emergency Mode

and Normal Mode power/current output of this LED driver.

2. This is to ensure that this product will not produce more power/current in either modes than

the LED load can handle, thus ensuring that the LED load will not be damaged when the

system is operating.

3. The Normal and Emergency Mode output current can be programmed in a given range that is

dependent on the model type. Please refer to the product specification for the exact range. For

more information on programming instructions, please refer to www.osram.us

4. The emergency mode power should be less than or equal to rating of the driver and the

battery pack that is being used for the application.

5. Verify that the forward voltage of the luminaire’s LED array is within the limits of the

emergency LED driver and its programmed settings. The forward voltage of the LED array is

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commonly designated as Vfand should be found on the luminaire markings, in the luminaire

specifications, or imprinted directly on the LED arrays. If multiple LED arrays are to be driven,

verify that the total forward voltage is within the limits of this product. Using a voltage meter, it

may be possible to directly measure the voltage across the LED arrays when operating from

the emergency driver.

6. Ensure there will be sufficient light output in the end application. Estimate the egress lighting

illumination levels by doing the following:

a. Find the efficacy of the LED load. This can be given by the luminaire manufacture. This

number will be given in lumens per watt (lm/w). It is the installer’s responsibility to

validate the luminaire manufacturer’s efficacy data. This can be accomplished by direct

measurement, by review of independent 3rd party test data (UL, ETL, etc.), accessing

a public database of 3rd party data (such as Design Lights Consortium,

www.designlights.org), or other comparable means.

b. Lumens can be calculated by multiplying the emergency mode power of the LED driver

by the efficacy of the LED load. In many cases the actual lumen output in emergency

mode will be greater than this calculation gives, however it will provide a good estimate

for beginning the lighting design of the system.

c. Using the results of this calculation and industry standard lighting design tools,

calculate the anticipated illumination levels in the path of egress.

Lumens in

Emergency Mode

= Fixture Efficacy * Emergency Mode power of the product

Lumens in

Emergency Mode

= Fixture Efficacy *

Emergency Mode

Output current

* LED Load Vf

(Lumens) = __________ (lm/W) * __________ (A) * __________ (V)

NOTE: This product has been designed to reliably interface with a wide selection of LED modules and

is electrically compatible with every simple LED array that meets criteria 1 and 5 above. However,

compatibility cannot be guaranteed with all current and future LED systems. Compatibility testing of

the end-use system is suggested. Please contact the factory with any questions.

NOTE: After installation, it will be necessary to measure the egress lighting illumination levels to

ensure it complies with national, state, and local code requirements.

Installation of this emergency LED driver will vary based on the luminaire type, however, generally

follow these steps:

STEP 1: INSTALLING EMERGENCY DRIVER

Disconnect AC power from the LED luminaire.

Mount the emergency LED driver along with the battery pack(s) by the mounting tabs. The

luminaire’s installation instructions may provide guidance on the recommended mounting

location.

Emergency driver & battery pack assembly (battery, wires & fuse) must be completely installed

inside of a UL 1598 / CSA C22.2 no. 250 (Listed Luminaire) enclosure, or a UL 924 / CSA

C22.2 no. 141 (Listed Emergency Lighting) enclosure. No open holes should be left within an

enclosure of wiring or electrical components.

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The emergency driver and the battery pack(s), including fuses, as a system may be remote

mounted from the luminaire, when installed within a UL 1598 / CSA C22.2 no. 250 (Listed

Luminaire) enclosure, or a UL 924 / CSA C22.2 no. 141 (Listed Emergency Lighting)

enclosure Please refer to the specification sheet for the maximum recommended remote

mounting distance. Remote mount wiring must be in accordance with the National Electrical

Code/Canadian Electrical Code and with local installation requirements.

STEP 2: INSTALLING THE TEST SWITCH ON FIXTURE SURFACE

Mount the supplied 3-wire illuminated test switch in a location that is visible and accessible by

maintenance personnel.

The switch mounts through a mounting hole which may need to be made in the luminaire or

could come pre-punched by the luminaire supplier. Please refer figure 2 for mounting hole

dimensions.

Wire the test switch per wiring diagrams provided on these instructions.

After installing, mark with the "PUSH TO TEST" and "CHARGING INDICATOR LIGHT" labels.

STEP 3: WIRING THE EMERGENCY DRIVER

Select the appropriate wiring diagram to connect the emergency driver to the LED load. The

battery packs have a pre-installed push-in connector that fit on the matching terminal on the

driver.

Ensure separation of circuits that operate at different potentials.

Make sure all connections are in accordance with the National Electrical Code/Canadian

Electrical Code and any local regulations.

After installation is complete, connect the battery pack to the driver, place fuse in fuse holder

and then apply AC input power to driver (battery assemblies are provided with a max. 3A rated

blade type fuse).The charging indicator light should illuminate indicating the battery is

charging.

Allow 24 hrs charge time before operating in emergency mode.

A short-term discharge test may be conducted after the emergency driver has been charged

for one hour. Charge for 24 hours before conducting a long-term discharge test.

In a readily visible location, attach the label "CAUTION - This unit has more than one power

connection point. To reduce the risk of electric shock, disconnect both the branch circuit-

breakers or fuses and emergency power supplies before servicing."

NOTE: The Switched and Un-switched hot should be fed from the same branch circuit.

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Figure 3: Wiring diagram for non-switched line

Figure 4: Wiring diagram for switched line

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Maintenance

Although no routine maintenance is required to keep the driver functional, it should be checked

periodically to ensure that it is working. The following schedule is recommended:

1. Visually inspect the charging indicator light monthly. It should be illuminated. If the charging

indicator is flashing, please refer to the troubleshooting guide section.

2. Test the emergency operation of the fixture at 30-day intervals for a minimum of 30 seconds.

The LED load should operate at reduced illumination.

3. Conduct a 90-minute discharge test once a year. The LED load should operate at reduced

illumination for at least 90 minutes.

CAUTION:To replace fuse, disconnect AC power for both switched &

unswitched lines from the fixture. Replace fuse in the fuse holder. Output light

should turn on in Emergency Mode. Supply AC power to fixture. Output light will

change to Normal Mode. Illuminated Test Switch indicator light should be

illuminated. Contact manufacturer for fuse replacement.

Troubleshooting Guide

The below table provides the different indicators and their corresponding translation in terms of status

of the Emergency driver.

STATUS INDICATOR PROBLEM CORRECTIVE ACTION

Light ON, not flashing None None, unit is operating correctly.

Flashing 1 time in 20

seconds Battery not

connected

Ensure the battery connector is

engaged properly to the emergency

driver. Check battery wiring and battery

pack fuse.

Flashing 2 times in 20

seconds Battery Low

Charge the battery for one hour. If fault

persist, check battery wiring and

connections.

Flashing 3 times in 20

seconds Charging Error

Ensure AC input wiring and battery

wiring is correct.

OSRAM SYLVANIA Inc.

200 Ballardvale Street

Wilmington, MA 01887 USA

1-877-636-5267

www.osram.us/ds

ECS-351

OSRAM and OPTOTRONIC are registered trademarks of OSRAM GmbH.

Specifications subject to change without notice.

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