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Dimming
The extra dimension
of LED light
Where are we today
The tendencies
Koen Vangorp
Director Sales & Marketing
Telerex
ORGANISATION LOGISTICS FINANCE PORTAL QUALITY MARKETS
8 LAKES GROUP
Dimming
The extra dimension
of LED light
Practical examples MW LCM
Combined multiple dimming
Output current by DIP switch
NTC current correction
 The
major difference between LCM-60 and LCM-60DA is the
control board which converts the DALI signal into PWM
dimming signal.
 Other differences are the Push dimming functions and
connectors.
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8 LAKES GROUP
Dimming
The extra dimension
of LED light
3-in-1 dimming
Resistor 0-100K ohm
0-10Vdc
10V PWM
Linear dimming characteristic
 0% to 100%
 Use of a logarithmic resistor dimmer

R
Resistor
ORGANISATION LOGISTICS FINANCE PORTAL QUALITY MARKETS
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AC
SOURCE
R
Resistor
ORGANISATION LOGISTICS FINANCE PORTAL QUALITY MARKETS
Dimming
The extra dimension
of LED light
3-in-1 dimming
Resistor 0-100K ohm
0-10Vdc
10V PWM
4-wire cabling
 AC from any mains + 2-wire DIM
 Possibilities multi-point controll?
Not for resistor
Not for PWM
Possible for 0-10V but complex

8 LAKES GROUP
NTC channel possibilities
-> thermal protection
Dimming
The extra dimension
of LED light
Similar concept as the temp.
compensation function in
battery charger (T ↑ I ↓)
 To improve the lifetime of the
LED dies
 To protect the dies from catastrophic
failure when fan breaks (limited)

NTC
Iout(%)
NTC: negative temperature coefficient resistor
Output current
120
100
80
60
Iout(%)
40
20
0
0
10
20
30
40
50
Resistor (kilo ohm)
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8 LAKES GROUP
NTC channel possibilities
-> Current adjustment
Dimming
The extra dimension
of LED light
Example driving at 650mA instead of
700mA constant current
 Select 700mA with the DIP switch
of LCM-60
 650mA/700mA=92.8%
 Put a 37kΩ to adjust the output
current from 700mA to 650mA

R
Iout(%)
Output current
120
100
80
60
Iout(%)
40
20
0
0
10
20
30
40
50
Resistor (kilo ohm)
ORGANISATION LOGISTICS FINANCE PORTAL QUALITY MARKETS
8 LAKES GROUP
Dimming
The extra dimension
of LED light
DALI dimming
DALI can control up to 64 device
(LCM-40DA/60DA) providing
16 groups and 16 scenes
 For indoor office building, theater,
commercial area...etc lighting
applications
 Logarithmic dimming characteristics
 4-wire cabling
 AC from any mains + 2-wire DIM
 Multi point controll

DALI
Controller
◎ DALI signal has 16V, non-polarity
◎ DALI cable length up to 300M (1.5m㎡)
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DALI
PSU
DALI
Controller
◎ DALI signal has 16V, non-polarity
◎ DALI cable length up to 300M (1.5m㎡)
ORGANISATION LOGISTICS FINANCE PORTAL QUALITY MARKETS
Dimming
The extra dimension
of LED light
DALI dimming
External PSU
LCM is a passive DALI device
 Some controllers are also passive
device
 In above situations, you need a
power supply for DALI line
 DALI voltage is normally 16 V
(between 22,4 and 9,5 V) and the
maximum system current is limited
to 250 mA

8 LAKES GROUP
Dimming
The extra dimension
of LED light
DALI dimming
With 12Vdc FAN aux

DALI
Controller

R
◎ DALI signal has 16V, non-polarity
◎ DALI cable length up to 300M (1.5m㎡)
ORGANISATION LOGISTICS FINANCE PORTAL QUALITY MARKETS
You can use Aux. power 12V from
the FAN output
As this 12V aux voltage source is not
current limited, you have to put a
resistor in between FAN+ and DIM+
to make sure the current is less than
50mA.
8 LAKES GROUP
Dimming
The extra dimension
of LED light
DALI dimming
Synchronisation
10 drivers (max.) synchronization
(1 master + 9 slaves)
 Max distance between drivers
20 meter
 Dimming is controlled by master and
the slaves just follow
For example the master is the
LCM-40DA/60DA controlled by DALI
and the slaves can be non-DA LCM
drivers to save cost

LED Lamp
LCM-40/60
(Slave 2)
SYN.
+-+-
LCM-40/60(DA)
(Master)
SYN.
LCM-40/60
(Slave 1)
+-+-
SYN.
+-+< 20M
(0~10V, 10V PWM, Push DIM, DALI)
ORGANISATION LOGISTICS FINANCE PORTAL QUALITY MARKETS
8 LAKES GROUP
Dimming
The extra dimension
of LED light
DALI dimming
Synchronisation

ORGANISATION LOGISTICS FINANCE PORTAL QUALITY MARKETS
DIM+ and SYNC+ are internally
connected so does DIM- and SYNC-
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Dimming
The extra dimension
of LED light
Push dimming
The future for households?
Push to dim up if the current is
below 10%
Push to dim down, if the current
is larger than 90%
 User needs only Push Button to
control the light
 Logarithmic dimming characteristics
 3-wire cabling
 AC from any mains + 1-wire DIM

AC
SOURCE
Push
Button
◎ PUSH Button connect to AC/L
◎ Default 100% output current
(Settable in DALI settings)
<0.05 sec
0.1~1 sec
1.5~10 sec
>11 sec
Neglect
Turn On/Off
Dim up/down
Set 100% output
ORGANISATION LOGISTICS FINANCE PORTAL QUALITY MARKETS
8 LAKES GROUP
Dimming
The extra dimension
of LED light
Push dimming
Multi-point controll
Multi point controll without limitations
 Just needs multiple push buttons in
parallel

AC
SOURCE
Button1
Button2
◎ PUSH Button connect to AC/L
◎ Default 100% output current
(Settable in DALI settings)
Conventional design using 2 way switches
<0.05 sec
0.1~1 sec
1.5~10 sec
>11 sec
Neglect
Turn On/Off
Dim up/down
Set 100% output
ORGANISATION LOGISTICS FINANCE PORTAL QUALITY MARKETS
8 LAKES GROUP
Dimming
The extra dimension
of LED light
AC
SOURCE
AC/L
LED
PSU1
AC/L
LED
PSU2
LED
PSU3
AC/L
LED
PSU4
AC/N
Push Botton
AC/L
AC/N
PUSH
DA+
DARY+
RY-
V+
VDIM+
DIM-
AC/N
DALI/PUSH – PWM signal converter
VDIM+
DIM-
AC/N
AC/L
V+
DAP-04
Push Dimming same as LCM
 Push to dim up if the current is below
10%; Push to dim down, if the current
is larger than 90%
 Suitable to work with all MW AC/DC
LED 3 in 1 dimming drivers
e.g. HLG series, LPF series, HLN
series, HBG series,…

V+
VDIM+
DIM-
AC/N
Push dimming & DALI
Multi driver controll
with MW DAP-04
LED Lamp
V+
VDIM+
DIMDIM1+
DIM1DIM2+
DIM2DIM3+
DIM3DIM4+
DIM4-
ORGANISATION LOGISTICS FINANCE PORTAL QUALITY MARKETS
<0.05 sec
0.1~1 sec
1.5~10 sec
>11 sec
Neglect
Turn On/Off
Dim up/down
Set 100% output
8 LAKES GROUP
Dimming
The extra dimension
of LED light
Questions
Koen Vangorp
Director Sales & Marketing
Telerex
ORGANISATION LOGISTICS FINANCE PORTAL QUALITY MARKETS
8 LAKES GROUP