MEAN WELL LCM-40KN-350mA Multiple Stage Constant Current Mode LED Driver Installation Guide

MEAN WELL LCM-40KN-350mA Multiple Stage Constant Current Mode LED Driver

Specifications

• Model: LCM-40KN
• Output Current Level: 350mA, 500mA, 600mA, 700mA (default)
• Rated Power: 42W
• DC Voltage Range: 2 ~ 100V, 2 ~ 80V, 2 ~ 67V, 2 ~ 57V
• Open Circuit Voltage (max.): 110V, 65V
• Current Ripple: 5.0% max. @ rated current
• Input Voltage Range: 180 ~ 295VAC, 220 ~ 392VDC
• Frequency Range: 47 ~ 63Hz
• Power Factor (Typ.): PF0.975/230VAC, PF0.95/277VAC @ full load
• Efficiency (Typ.): 90%
• Inrush Current (Typ.): 20A (twidth=310s measured at 50% Ipeak) at 230VAC

Product Usage Instructions

DIP Switch Table

• The current level is selectable via the DIP switch. Please refer to the DIP SWITCH TABLE section in the manual for instructions on how to set the desired current level.

Static Characteristic

• Understand the relationship between output load and temperature by referring to the OUTPUT LOAD vs TEMPERATURE graph provided in the manual.

Total Harmonic Distortion (THD)

• Refer to the TOTAL HARMONIC DISTORTION (THD) section to ensure THD remains below 20% at load 75%.

Power Factor (PF) Characteristic

• Check the POWER FACTOR (PF) CHARACTERISTIC section to verify the power factor under different load conditions and input voltages.

FAQ

1. Can I use a different brand of NTC resistor with this LED driver?
   • MEAN WELL does not offer the NTC resistor, and all measurements are based on using the THINKING TTC03 series. If using another brand of NTC resistor, ensure to check the temperature curve first.
2. What happens if the temperature compensation function is in use?
   • The KNX control, dimming, and synchronization function of the driver will be invalid when the temperature compensation function is activated.

Features

• Constant Current mode output with multiple levels selectable by dip switch
• KNX/EIB protocol
• Flicker-free design
• Support emergency lighting (EL)
• Integrated constant light output
• Integrated KNX push-button interface
• Synchronization up to 10 units
• Functions: Manual dim, operation hours, power consumption feedback, log/linear curve selection…etc
• 3 years warranty

Applications

• LED indoor lighting
• LED office lighting
• LED architectural lighting
• LED panel lighting

GTIN CODE

• MW Search: https://www.meanwell.com/serviceGTIN.aspx

Description

LCM-40KN series is a 40W AC/DC constant current mode output LED driver featuring the multiple levels selectable by the dip switch and the KNX interface to avoid using the complicated KNX-DALI gateway. LCM-40KN operates from 180 ~ 295VAC and offers different current levels ranging between 350mA and 1050mA. Thanks to the high efficiency of up to 90%, with the fanless design, the entire series can operate for -30°C ~+90°C case temperature under free air convection. In addition, LCM-40KN is equipped with push dimming and synchronization to provide optimal design flexibility for an LED lighting system.

Model Encodina

SPECIFICATION

BLOCK DIAGRAM

• PFC fosc: 60KHz
• PWM fosc: 80KHz

DIP SWITCH TABLE

LCM-40KN is a multiple-stage constant current driver, the selection of output current through the DIP switch is exhibited below.

More current options through the DIP switch are exhibited below.

Note: The max. LED voltage connected at the output should be always less than the table above.

DIMMING OPERATION

KNX interface

• Apply KNX Bus cable between KNX+ and KNX-
• The application program(database) can be downloaded via Online Catalogs from ETS or via http://www.meanwell.com/productCatalog.aspx

‧Dimming speed for turn on/off

‧Switch telegram and status

‧Switch on/off delay

Dimming| ‧Dimming speed for 0~100%

‧Allow switch on via relative dimming

‧Push dimming with AC input port

‧Block object for push dimming

Brightness value| ‧Dimming speed for transition brightness values

‧Permit set switch on and off brightness via value

‧Brightness value and status

Fault message| ‧Lamp fault

‧AC/DC input monitor fault messages

Other functions| ‧Reaction on KNX voltage failure/recovery

‧Power-On  level

‧Dimming curve select(linear/log)

‧Synchronous dimming output

‧Block function(Block1&Block2)

‧Staircase  lighting  function(multi-stage  switch-off)

General function| ‧Cyclic monitoring telegram(In operation)
8 Scenes| ‧Recall and save via KNX with 8-bit telegram
Operating hours & CLO| ‧Operating hours counter

‧Constant light out(5 scheduled divisions)

Power consumption feedback| ‧Power consumption report

CONSTANT LIGHT OUTPUT

PUSH dimming or AC/DC input monitor(Primary side)

PUSH dimming

• KNX bus needs to be connected when using PUSH Dimming
• For the detailed function of PUSH dimming, please refer to the database.
• The maximum length of the cable between the push button and the driver is 20 meters.
• The mechanical push button can be connected only between the PUSH terminal, as displayed in the diagram, and AC/L (in brown or black); it will lead to a short circuit if it is connected to AC/N.
• In case the PUSH dimming is set locally, up to 10 drivers can perform the PUSH dimming at the same time when utilizing one common push button.
• In case the PUSH dimming is set independently via ETS, the number of drivers is done through group address and determined by the ETS project designer.

AC/DC input monitor

• KNX bus needs to be connected when using an AC/DC input monitor
• For the detailed function of the AC/DC input monitor(emergency lighting), please refer to the database and instruction manual.

SYNCHRONIZATION OPERATION

• Synchronization up to 10 drivers (1 master + 9 slaves)
• Dimming operating range: 6%~100%
• Sync cable length: < 5m
• Sync cable type: Flat cable
• Sync cable cross-section area : 22 – 24 AWG (0.2-0.3mm*)
• NOTE: Min. Dimming the operating range depends on the database setting.

TEMPERATURE COMPENSATION OPERATION

LCM-40KN has a built-in temperature compensation function; by connecting a temperature sensor (NTC resistor) between the +NTC / -NTC terminal of LCM-40KN and the detecting point on the lighting system or the surrounding environment, the output current of LCM-40KN could be correspondingly changed, based on the sensed temperature, to ensure the long life of LED.

NTC derating curve

Sensed Temperature(C)

LCM-40KN can still be operated normally when the NTC resistor is not connected and the value of the output current will be the current level selected through the DIP switch.

NTC reference:

220K

| < 60℃, 100% of the rated current (corresponds to the setting current level)

60℃, output current begins to reduce, please refer to the curve for details.

330K

| < 70℃, 100% of the rated current (corresponds to the setting current level)

70℃, output current begins to reduce, please refer to the curve for details.

470K

| < 80℃, 100% of the rated current (corresponds to the setting current level)

80℃, output current begins to reduce, please refer to the curve for details.

Notes:

1. MEAN WELL does not offer the NTC resistor and all the data above are measured by using the THINKING TTC03 series.
2. If other brands of NTC resistors are applied, please check the temperature curve first.

KNX control, dimming and synchronization functions of the driver will be invalid when the “temperature compensation” function is in use.

OUTPUT LOAD vs TEMPERATURE

STATIC CHARACTERISTIC

TOTAL HARMONIC DISTORTION (THD)

※ Tcase at 80℃

POWER FACTOR (PF) CHARACTERISTIC

Tcase at 80℃

EFFICIENCY vs LOAD

LCM-40KN series possess superior working efficiency that up to 90% can be reached in field applications.

※ Tcase at 80℃

MECHANICAL SPECIFICATION

Terminal Pin No. Assignment( TB1)

Terminal Pin No. Assignment(TB3)

Pin1(+FAN) / Pin2(-FAN) is the Auxiliary DC output for the optional model LCM- 40KN-AUX; it can be used to drive the fan.

Terminal Pin No. Assignment(TB4)

Terminal Pin No. Assignment(TB5)

Installation Manual

Please refer to: http://www.meanwell.com/manual.html .

Documents / Resources

| MEAN WELL LCM-40KN-350mA Multiple Stage Constant Current Mode LED Driver [pdf] Installation Guide
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