LDM – LED Array Emergency Control Gear

LDM Range

The ELP ENEC marked LDM emergency LED control gear allows emergency lighting operation of high-power LED modules when used in conjunction with the standard mains voltage LED control gear.

The emergency control gear incorporates a module charger and a high temperature Nickel Cadmium or Lithium Iron Phosphate (LiFePO4) battery. In the event of a mains failure an integral 2-pole relay disconnects the LED lighting load from the mains control gear and then connects it to the emergency control gear which operates the LED module at an optimum light output for the rated duration.

• The LED current in emergency mode is automatically adjusted for maximum light output and is constant for the entire rated duration.
• Smart charging of both Nickel Cadmium and Lithium Iron Phosphate batteries. NB: Lithium Iron Phosphate batteries offer long life (up to 10 years).
• Details are logged of any mains failures to assist in the diagnostics of any site issues.
• The LDM range is available with fully interoperable DALI control and reporting function. These DALI versions indicated by the suffix D, also provide automatic Self-Test when no DALI bus is connected.

• It is important to note that some LED mains control gear should not be operated with an open circuit load, to overcome this problem the LDM range features a live in live out relay which ensures the load is in place before the mains driver is powered up.

  In Self-test mode the function and duration tests will take place at randomised times. If required, testing can be programmed to occur at a designated time by turning the unswitched supply off and on 3 times in 10 seconds at the required time. Note: The function test will occur weekly at the same time.

  SECTION		SUBJECT		PLASTIC HOUSED MODULE
  Environmental		Protection against electric shock		Secondary outputs – SELV for output voltage < 100V
  	Ingress protection		IP20
  	Module rated operating ambient temperature		-20°C to 50°C
  Battery rated operating ambient temperature		0°C to 55°C
  Maximum case temperature		65°C
  Mains Operation		Rated voltage supply		220 240V AC
  	Mains frequency		50 60Hz
  	Mains supply current		<18mA
  	Mains supply power		4 watts
  	Power factor		0.53C
  Mains overvoltage protection		320 volts for 1 hour
  Indicator LED		2 wire green colour – standard LDM 2 wire red green – DALI LDM
  Maximum power that can be switched via relay contacts		150 watts
  Maximum current that can be switched via relay contacts		3 amps
  Maximum voltage that can be switched via relay contacts		250V AC 220V DC
  Emergency Operation		Emergency duration		1 or 3 hours
  	Battery chemistry type		NiCd or LiFePO4
  	Number and type of high temperature cells LDM90 and LDM90D		4 x NiCd 1.8Ah sub-C cells
  	LDM200 and LDM200D		5 x NiCd 1.8Ah sub-C cells
  	LDM90MO, LDM200MO, LDM90MOD and LDM200MOD		2 x LiFePO4 2.1Ah 22650 cells
  	LDM90HO, LDM200HO, LDM90HOD and LDM200HOD		2 x LiFePO4 3Ah 26650 cells
  	Battery recharge period		<24 hours
  	Time to full illuminance		<0.5 seconds
  	Short-circuit-proof battery connection, polarity reversal and deep discharge protection
  	Battery charge current NiCd 1.8Ah sub-C cells 2 stage charge – boost trickle LiFePO4 2.1Ah and 3Ah cells – voltage dependent, constant current		100mA 70mA ±10% 0 – 150mA
  	Battery discharge current range (at nominal battery voltage) NiCd 1.8Ah sub-C cells LiFePO4 2.1Ah 26650 cells LiFePO4 3Ah 26650 cells		360mA to 560mA (450mA) 475mA to 735mA (550mA) 650mA to 1000mA (750mA)
  	Module operating current – see separate graphs. LDM90 and LDM90D		134mA to 19mA ±10%
  	LDM90MO and LDM90MOD		200mA to 30mA ±10%
  LDM90HO and LDM90HOD		258mA to 41mA ±10%
  LDM200 and LDM200D		33mA to 10mA ±10%
  LDM200MO and LDM200MOD		40mA to 12mA ±10%
  LDM200HO and LDM200HOD		57mA to 18mA ±10%
  Module output voltage range (nominal power) LDM90 and LDM90D		12V to 90V (1.6W)
  LDM90MO and LDM90MOD		12V to 90V (2.6W)
  LDM90HO and LDM90HOD		12V to 90V (3.5W)
  LDM200 and LDM200D		60V to 200V (2.0W)
  LDM200MO and LDM200MOD		60V to 200V (2.4W)
  LDM200HO and LDM200HOD		60V to 200V (3.5W)
  EOFI – dependant on LED module type		0.12 to 0.25
  A record is kept of the number and length of emergency and mains operations – this information can be downloaded via the internal programming connector
  Mechanical		Module outside dimensions		178mm (L) x 30mm (W) x 21mm (H)
  	Fixing centres		174mm
  Electrical connections		Push wire terminals
  Standards Compliance		EN61347-1, EN61347-2-7, EN61347-2-13 and EN62384		Yes
  	EN62034*, EN62386-101*, EN62386-102* and EN62386-202*		Yes
  	EN55015		Yes
  EN61547		Yes
  Marks CE		Yes

   

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