Constant Voltage LED Driver LCV

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Product Overview The LCV range is a versatile range of emergency lighting conversion equipment for 3 hour emergency lighting supply consisting of a high temperature Nickel Cadmium (NiCd) battery pack and converter/charger module. Using dc-dc switcher circuitry this range provides a constant voltage output (CV) for fixed voltage LEDs and panels. The LCV range offers reliability and compatibility with most types of low power LED sources, providing three hour duration emergency lighting at full output. The range is available in a wide range of LED voltage outputs and varying battery sizes, to suit the developing LED market. The LCV has extra circuitry so that it can provide a higher output voltage than the battery voltage. This means it is possible to drive a 24V load from a 3.6V battery, saving considerably on the number of battery cells required. The converter/charger module is housed in our standard HRN case and comes complete with 6 way and 4 way terminal blocks. The six way block allows connection of the unswitched 240V supply, irreversible battery connector and LED, whilst the four way block allows connection of the two low voltage leads from the LED driver maintaining supply, and two more out to the LEDs. All units are designed to give 3 hour duration and utilise 3, 4, 5, or 6 Cell 4Ah batteries to provide varying maximum output power. Most of the units are designed to run the LEDs at full 100% output, although some of the constant voltage versions can be set to slightly under run the LEDs to give full battery duration (3 hour). The Constant Voltage (Type CV) output units are available in any output voltage in the range 8-27V DC and the maximum loads available are:

Unit type Number of Cells Maximum load power LCV/3/zz 3 3WLCV/4/zz 4 4WLCV/5/zz 5 5WLCV/6/zz 6 6W

zz=output voltage required Select this type for constant voltage loads (Constant Voltage LED loads will usually have the voltage in their part number.) Normally use the smallest size battery capable of supporting the load for 3 hours, (maximum load =1W per Cell) and then specify the dc output voltage required. Typical Part numbers are as follows: LCV/3/10 Constant Voltage conversion pack utilising a 3 Cell 4Ah battery and providing a 10V

DC output, suitable for a load of up to 3W. LCV/4/24 Constant Voltage Conversion pack utilising a 4 Cell 4Ah battery and providing a 24V

DC output, suitable for a load of up to 4W.

Constant Voltage LED Driver LCV

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Conversion Service Due to the size constraints of LED luminaires and the necessary large size of emergency lighting batteries, the LCV converter/charger module and battery can be supplied in a separate remote box. (Add R suffix to above part numbers) For ease of wiring it will usually be advantageous to remove the LED driver from the luminaire and fix it within the remote box. Dependant on size of the driver this may fit inside standard remote boxes, or a larger size may be required. The LED luminaire can be converted for low voltage input, and the normal switched and unswitched 240V supplies can be taken to the remote box. A colour coded PVC Sleeved loom will be provided to connect the remote box to the luminaire. Attention should also be paid as to placing of the battery charge LED, as the compact size of LED luminaires may prohibit the battery charge LED from being placed in the luminaire. Typical Wiring

CONSTANTCURRENT ORCONSTANT VOLTAGE LVOUTPUT

REDBLACK

TYPICAL FITTING

LED DRIVEROUTPUTVOLTAGE LVCONSTANT CURRENT ORCONSTANT

SUPPLYNL

SWITCHED240V AC

TYPICAL STANDARD FITTING

TYPICAL CONVERTED FITTING

FOR INTERMITTENT OPERATION CHARGING CURRENT

NOM CURRENT = 1.1 AMP

LP/LED RANGE

MADE IN ENGLAND

VOLTAGE OUTPUT

220/240V AC

50mA MAX50HZ ± 1HZ

MAINS SUPPLY

DANGER

EMERGENCY LIGHTING

HIGH VOLTAGE INSULATION TEST INSTUMENTELECTRONIC CONTROL GEAR: DO NOT USE

CASE OPERATING TEMPERATURE0°C - 70°C

MIN & MAX

LIMITED

FREQ. RANGEVOLTAGE RANGE

BATTERY X 4AHFOR USE WITH NI-Cd

N

+

L

+LED RED

BATTERY

INDICATOR

AC SUPPLY

UNSWITCHED240V 50HZ

SUPPLY BLACK -

WHITE

RED-

LED DRIVER

CHARGE LED

BLACKRED

TYPICAL FITTING

N

L1

L

E

FUSE L1ELN & SWITCHED

SUPPLY

TWISTED REDTWISTED WHITE

240V ACUNSWITCHED

BATTERY

REMOTE BOX

REDBLACK

Constant Voltage LED Driver LCV

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Technical Specification The LCV converter/charger module is fitted with constant current charger circuit to recharge the battery within 24 hours, and to maintain it in premium condition. There is a 2 pole changeover relay to completely isolate the Led driver from the converter circuit upon mains failure. The battery has an additional single pole deep discharge relay to prevent the battery being discharged below the required level at the end of discharge. In a converted Low voltage LED luminaire the LCV pack is wired between the standard LV LED driver and the LED luminaire. The Constant Voltage Output is fully overload protected, and loading it beyond its rated load will result in a shorter duration output, and a lower output voltage.

Specification Summary LCV/3/zz LCV/4/zz LCV/5/zz LCV/6/zz

Mains Supply 220-240 Volts AC - 50/60HzPower Rating Watts 4.5 Watts

Mains Frequency 50HzCharge Current 200mA NominalRecharge Period 24 hours

Battery Pack 3 x 4Ah D Cell Ni-Cd 4 x 4Ah D Cell Ni-Cd 5 x 4Ah D Cell Ni-Cd 6 x 4Ah D Cell Ni-Cd

Output Voltage Constant Voltage (CV) specified by part number zz available in range 8-27V

Output in emergency operation is DC Voltage stability ± 5%Maximum load 3 Watts 4 Watts 5 Watts 6 Watts

Module size L x W x H

165mm x 45mm x 29mm FC =155mm

Battery Size (Ni-Cd) L x W x H

220 x 37 x 37mm Fixing centres 205mm

280 x 37 x 37mm Fixing centres 265mm

340 x 37 x 37mm Fixing centres 325mm

2 sticks each 220 x 37 x 37mm

Fixing centres 205mm Remote Box size

L x W x H 340 x 90 x 40mm 340 x 90 x 40mm 395 x 90 x 40mm 375 x 150 x 50mm