Technical application guide - 2DIMLT2 P LED drivers (08/15)
www.osram.com
0-10 V
Ext. NTC
StepDIM
6 kV
AstroDIM
CLO
(DIF)
6 kV
(COM)
08/2015
Technical application guide
2DIMLT2 P LED drivers
Light is OSRAM
2DIMLT2 P LED drivers | Contents
Contents
1 Introduction
03
1.1 OSRAM LED drivers with 2DIM functionality
4 Additional information
19
4.1 Insulation
19
03
4.2 Wiring/connection
19
1.2 2DIMLT2 P product family
04
4.3 Ingress protection (IP)
19
1.3 Nomenclature
06
4.4 Incorrect wiring on the output side
19
1.4 Operating windows
06
4.5 Input overvoltage
19
1.4.1 Supported LEDs
07
4.6 Surge protection
20
1.4.2 Current foldback
07
5 Programming
21
2 Features
08
2.1 Operating current
08
for outdoor and industrial applications
2.1.1 Fixed current mode
08
2.1.2 LEDset2 mode
08
2.2 Thermal derating and protection
10
2.2.1 External temperature sensor
10
2.2.2 Internal LED driver temperature protection
10
2.3 Constant lumen function
11
2.4 End of life
11
3 Operating modes
12
3.1 On/off operating mode
12
3.2 AstroDIM feature
13
3.2.1 Astro-based mode
14
3.2.2 Presence detection in AstroDIM mode
16
3.3 StepDIM feature
17
3.3.1 Mixed StepDIM installations with 3DIM and
2DIMLT2 P LED drivers
3.4 0–10 V operating mode
18
18
Please note:
All information in this guide has been prepared with great
care. OSRAM, however, does not accept liability for possible errors, changes and/or omissions. Please check
www.osram.com or contact your sales partner for an updated copy of this guide. This technical application guide
is for information purposes only and aims to support you
in tackling the challenges and taking full advantage of all
opportunities the technology has to offer. Please note that
this guide is based on own measurements, tests, specific
parameters and assumptions. Individual applications may
not be covered and need different handling. Responsibility
and testing obligations remain with the luminaire manufacturer/OEM/application planner.
2
2DIMLT2 P LED drivers | Introduction
1 Introduction
1.1 OSRAM LED drivers with 2DIM functionality
for outdoor and industrial applications
Long lifetime, low maintenance costs and high efficiency
are very important for outdoor and industrial applications.
OPTOTRONIC ® LED drivers for outdoor applications meet
these requirements and unlock the full potential of LEDbased light sources.
Thanks to the flexibility of the fast, power-off programming
of OPTOTRONIC® 2DIMLT2 P LED drivers, LED luminaire
systems can be optimally adapted to the required conditions and their cost can be optimized. With the two integrated dimming functions (2DIM), significant energy savings
and a reduction of greenhouse gas emissions can be
achieved.
In order to be ready for smart city infrastructures, the
0–10 V interface allows for the simple integration into telemanagement systems (for example with the OSRAM Street
Light Control system).
Due to the wide operating window (voltage/current) of
these LED drivers, both OSRAM LED modules for outdoor
applications and customer-specific LED modules can be
operated. This also means that the overall amount of different LED drivers on stock can be kept low and that the overall complexity of luminaire maintenance over the entire life
cycle can be reduced.
With the LEDset2 interface, OSRAM has created a new
path towards standardizing the communication between
the LED driver and the LED modules. Without reprogramming, LEDset2 ensures optimal efficiency, a high level of
reliability and the adaptability of the LED drivers to the
latest LED technologies.
Finally, due to integrated overvoltage protection, LED
drivers with 2DIM functionality are also setting a new
standard against surges of up to 6 kV for class I and II
luminaires.
3
2DIMLT2 P LED drivers | Introduction
1.2 2DIMLT2 P product family
The 2DIMLT2 P product family consists of two different output power classes of up to 110 W and two current ranges of
up to 1.4 A. All types have the same 2DIM dimming capabilities and the new multi-vendor LEDset2 interface. They
can be programmed via the Tuner4TRONIC® software. The
following overview shows the main features of these new
LED drivers.
Table 1: Family overview
Product name
OT 50/120-277/800
2DIMLT2 P
OT 50/120-277/1A2
2DIMLT2 P
OT 100/120-277/800
2DIMLT2 P
OT 110/120-277/1A4
2DIMLT2 P
Maximum power
50 W
50 W
100 W
110 W
Input voltage L/N
120 V, 220–240 V, 277 V
120 V, 220–240 V, 277 V
120 V, 220–240 V, 277 V
120 V, 220–240 V, 277 V
Output current range
105–800 mA
180–1250 mA
105–800 mA
180–1400 mA
Surge (dif/com)
6/6 kV
6/6 kV
6/6 kV
6/6 kV
SELV
SELV
Double
SELV
Double
Double
Double
Double
General
Insulation
(primary/secondary)
Insulation of casing
Dimming features
DALI
0–10 V
DALI
Not supported
Not supported
Not supported
Not supported
+ ext. relay
+ ext. relay
+ ext. relay
+ ext. relay
+ ext. relay
+ ext. relay
+ ext. relay
+ ext. relay
0-10 V
StepDIM (SD)
StepDIM
StepDIM inverse (SD)
StepDIM
AstroDIM (astro-based)
AstroDIM
AstroDIM (time-based)
AstroDIM
Not supported
Not supported
Not supported
Not supported
MainsDIM
MainsDIM
Not supported
Not supported
Not supported
Not supported
+ ext. relay
+ ext. relay
+ ext. relay
+ ext. relay
Not supported
Not supported
Not supported
Not supported
Presence detection
PRESENCE
Other features
Constant lumen function
Fit for SMART GRID
CLO
SMART
GRID
LEDset2
External NTC
Ext. NTC
Programming software
Tuner4TRONIC ®
4
2DIMLT2 P LED drivers | Introduction
0–10 V
LEDset (Generation 2)
0-10 V
All OSRAM 2DIMLT2 P LED drivers are equipped with a
0–10 V interface which provides an easy and proven dimming possibility. Due to the wide distribution of the 0–10 V
interface in the market, there are many suitable sensors
and control systems available, such as the OSRAM Street
Light Control system.
StepDIM/StepDIM inverse
StepDIM
Dimming via an external control phase: In combination with
an external switch-over relay connected to the 0–10 V
inter face, the 2DIMLT2 P LED driver is applicable for StepDIM installations. The dimming value can be set using the
Tuner4TRONIC® software.
AstroDIM
AstroDIM
Automatic dimming via an integrated timer (no real-time
clock): Five independent dimming levels and zones can be
set with the Tuner4TRONIC® software. Brightness variation
is possible in combination with an external presence sensor.
The new generation LEDset2 is an improved LED module
interface for the combination of single or multiple LED
modules with one LED driver via a single analog control
line. This interface enables external current setting and
temperature monitoring. The LEDset2 interface has no
auxiliary supply and is not compatible with LEDset
(Generation 1). LEDset2 has an absolute current coding,
while LEDset (Generation 1) only has a relative one.
External temperature sensor
Ext. NTC
This feature allows the temperature protection of the LED
module or the complete luminaire in hot ambient temperatures via an external sensor (e.g. NTC, negative temperature coefficient resistor). The derating can be modified via
the Tuner4TRONIC® software.
Note:
It is not possible to use the LEDset2 interface and an external NTC at the same time since they share the same port.
Integrated overvoltage protection
6 kV
EQUI
(DIF)
CLO (constant lumen output)
CLO
6 kV
(COM)
The 2DIMLT2 P LED drivers have an integrated overvoltage
protection of up to 6 kV for differential and 6 kV for common
mode overvoltages.
The decrease in the luminous flux of an LED module can be
compensated over its entire lifetime via a preprogrammed
current curve. This not only ensures stable lighting but also
saves energy and increases the lifetime of the LEDs.
5
2DIMLT2 P LED drivers | Introduction
1.3 Nomenclature
The product name of each OPTOTRONIC® 2DIMLT2 P LED
driver is defined as shown below.
Figure 2: Overview of 2DIMLT2 P operating windows
Figure 1: OT 110/120-277/1A4 2DIMLT2 P
Output voltage [V]
OT 50/800 2DIMLT2 P
OT 100/800 2DIMLT2 P
OT 50/1A2 2DIMLT2 P
OT 110/1A4 2DIMLT2 P
Nominal range
Dimming range
200
180
160
140
120
100
OT:
110:
120-277:
1A4:
2DIM:
LT2:
P:
®
OPTOTRONIC LED driver
Power class: 110 W
Input voltage range (L/N): 120–277 V
Max. output current: 1400 mA
2DIM functionality (0–10 V, AstroDIM)
LEDset2 (LED module interface)
Humidity-protected with IP 64
80
60
40
20
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Output current [A]
1.4 Operating windows
The OPTOTRONIC® 2DIMLT2 P LED driver family is split up
into two different power classes to provide the best suitable
power supply for different applications.
Table 2: 2DIMLT2 P maximum allowed output power
Type
Pmax
OT 50/120-277/
800 2DIMLT2 P
50 W
OT 50/120-277/
1A2 2DIMLT2 P
ta
V in (nominal)
-40…+50 °C
120/277 V
-40…+55 °C
220–240 V
-40…+50 °C
120/277 V
-40…+55 °C
220–240 V
50 W
-40…+45 °C
120 V
OT 100/120-277/
100 W
800 2DIMLT2 P
90 W
-40…+55 °C
220–240 V
100 W
-40…+50 °C
277 V
-40…+40 °C
120 V
-40…+55 °C
220–240 V
-40…+55 °C
277 V
OT 110/120-277/
1A4 2DIMLT2 P 110 W
6
2DIMLT2 P LED drivers | Introduction
Table 3: 2DIMLT2 P operating range
Type
Minimum Minimum Maximum Minimum Maximum
dimming nominal nominal output
output
current
current
current
voltage
voltage
OT
50/120105 mA
277/800
2DIMLT2 P
350 mA
800 mA
30 V
115 V
OT
50/120180 mA
277/1A2
2DIMLT2 P
600 mA
1250 mA
20 V
55 V
OT
100/120105 mA
277/800
2DIMLT2 P
350 mA
800 mA
50 V
186 V
OT
110/120180 mA
277/1A4
2DIMLT2 P
600 mA
1400 mA
35 V
85 V
1.4.2 Current foldback
The intelligent 2DIMLT2 P family allows a safe start-up of
the system. In case the input voltage of the load exceeds
the output voltage range of the driver [1], it automatically
reduces the output current to keep the output voltage controlled to the maximum allowed output voltage. If no permitted operating point is achieved, the driver may shut
down. The driver automatically reduces the output current
in case the maximum allowed output power is exceeded
[2], as long as the input voltage of the load is within the
declared output voltage range of the driver. In all other
cases, the driver may shut down the load.
If the voltage of the load falls below the minimum allowed
value of the driver, the output is switched off until the next
power-off/on cycle. The same behavior occurs if no load is
detected during the power-up phase of the driver (hot-plug
protection).
Figure 3: Current foldback
(example: OT 50/120-277/1A2 2DIMLT2 P)
Output voltage [V]
Warning:
When LED drivers are permanently operated below an
output level of 30 %, it is necessary to ensure compliance
with relevant IEC standards (for example mains current distortion and power factors). According to UL standards,
dimming down to 10 % is allowed.
1.4.1 Supported LEDs
Table 4 shows how many LEDs can be driven with
one LED driver. The values are based on the following
assumptions:
VfLED = 3.25 V at 1400 mA and Vf LED = 2.5 V at 105/180 mA
60
1
2
50
40
30
20
10
Table 4: Supported number of LEDs
Type
Minimum number
of LEDs
Maximum number
of LEDs
OT 50/120-277/800
2DIMLT2 P
12
35
OT 50/120-277/1A2
2DIMLT2 P
8
17
OT 100/120-277/800
2DIMLT2 P
20
57
OT 110/120-277/1A4
2DIMLT2 P
14
26
0
0.2
0.4
0.6
0.8
1
1.2
1.4
Output current [A]
Warning:
The real number of supported LEDs needs to be checked
according to the minimum and maximum forward voltage
in the worst case conditions. They have to match the minimum and maximum output voltage of the used LED drivers.
The forward voltage of the connected LED module in dimming condition is lower than the forward voltage in nominal
condition but still has to be above the minimum output voltage of the LED driver.
7
2DIMLT2 P LED drivers | Features
2 Features
Figure 5: LEDset2 parallel connection
Luminaire 1
2DIMLT2 P
L
N
LED+
LED-
LT2
DIM-
DIM+
2.1 Operating current
Flexible current setting allows taking advantage of the
continuously improving LED technology and building a
future-proof system. The 2DIMLT2 P family offers two
modes for current setting, which can be set via the
Tuner4TRONIC® software:
— Fixed current: Current setting via programmable
interface
— LEDset2: Current setting via the LEDset2 interface
Figure 4: Setting of the operating current
R set
The LEDset2 interface is disabled by default and has to be
activated using the Tuner4TRONIC® software.
Note:
In addition to the LEDset functionality, the LEDset port on
the 2DIMLT2 P LED drivers is used to program the driver or
realize a thermal protection. The LEDset2 mode and the
thermal protection cannot be used at the same time.
Luminaire 1
2DIMLT2 P
L
R set
N
LED+
LED-
LT2
Note:
In the following figures, the LED module is displayed in a
simplified way. The real number of LEDs depends on the
output voltage of the driver.
LED module
Figure 6: LEDset2 series connection
DIM-
2.1.2 LEDset2 mode
The LEDset2 interface (LEDset generation 2) is a standardized
LED module interface to set the right output current and
establish an easy and low-cost temperature protection for
the connected LED module. This multi-vendor interface is
suitable for LED modules connected in parallel or series.
LED module
DIM+
2.1.1 Fixed current mode
To use the fixed current mode, it has to be selected in the
Tuner4TRONIC® software. The minimum and maximum rated output currents are displayed according to the selected
LED driver. The output current of the LED driver can be set
by changing the value in the “Operating Current” field.
Rset
Rset
LED module
LED module
8
2DIMLT2 P LED drivers | Features
The output current of the LED driver can be set using an
externally connected resistor (min. power rating 50 mW,
max. tolerance 0.5 %). This provides the possibility to set
the LED current manually without the need for an additional
programming of the LED driver. With a resistor mounted on
the LED module as shown in figure 7, the correct LED current can be set automatically. With this resistor, the desired
current for the LED module is set according to the used
LED bin and needed lumen output, offering a real plugand-play solution and making the system future-proof.
Figure 9: OT 50/120-277/1A2 2DIMLT2 P
Output current [mA]
1 Undefined range
1500
1300
1100
900
1
700
Figure 7: Rset connection
2 Nominal range
500
Luminaire 1
300
2DIMLT2 P
L
N
LED+
LED-
LT2
DIM-
DIM+
100
0
2
1
10
100
Rset [kΩ]
Table 6: LEDset2 resistor coding
I out [mA]
reference
R set
LED module
R set [kΩ]
I out [mA]
nominal
Open circuit
> 27.7
180
600
8.25 (E192)
606
700
7.15 (E192)
699
1050
4.75 (E192)
1052
1250
4.02 (E192)
1243
Undefi ned
< 2.00
1250/180
Short circuit
< 900
180
The LEDset2 coding for the 2DIMLT2 P family is shown in
the following graphs.
Figure 8: OT xxx/120-277/800 2DIMLT2 P
1 Undefined range
Output current [mA]
Figure 10: OT 110/120-277/1A4 2DIMLT2 P
2 Nominal range
900
1500
800
1300
700
1 Undefined range
Output current [mA]
2 Nominal range
1100
600
900
500
1
1
400
700
300
500
200
300
2
100
2
100
0
0
1
10
100
1
10
Rset [kΩ]
Table 5: LEDset2 resistor coding
100
Rset [kΩ]
Table 7: LEDset2 resistor coding
I out [mA]
reference
R set [kΩ]
I out [mA]
nominal
I out [mA]
reference
R set [kΩ]
I out [mA]
nominal
Open circuit
> 47.6
105
Open circuit
> 27.7
180
350
14.0 (E192)
357
600
8.25 (E192)
606
500
10.0 (E192)
500
700
7.15 (E192)
699
700
7.15 (E192)
699
1050
4.75 (E192)
1052
800
6.19 (E192)
808
1400
3.57 (E192)
1400
Undefi ned
< 3.12
800/105
Undefi ned
< 1.79
1400/180
Short circuit
< 900
105
Short circuit
< 900
180
9
2DIMLT2 P LED drivers | Features
2.2 Thermal derating and protection
Table 6: Overview of standard NTCs
2.2.1 External temperature sensor
By connecting an external temperature sensor to the
NTCset port of the 2DIMLT2 P LED driver, a very easy and
cost-efficient temperature protection of the LED module
can be realized. As an example, an NTC (negative temperature coefficient resistor) can be mounted on the LED module
and connected as shown in figure 11. In case the thermal
protection feature is enabled and nothing is connected to
the NTCset terminal, the driver delivers 100 % light output.
Figure 11: NTC connection
NTC type
Start derating
temperature [6.3 kΩ]
End derating
temperature [5.0 kΩ]
22 kΩ
56 °C
62 °C
33 kΩ
66 °C
72 °C
47 kΩ
75 °C
83 °C
68 kΩ
85 °C
92 °C
Figure 12: Thermal protection settings
Luminaire 1
2DIMLT2 P
L
N
LED+
LED-
LT2
DIM-
DIM+
Figure 13: Thermal protection derating behavior
R set
LED module
Table 7: Supported value ranges
The 2DIMLT2 P LED drivers only support the following
temperature protection mode:
— Resistor-based mode
Note:
As the thermal protection and the LEDset interface are
using the same connection, only one of the two functionalities can be used at the same time.
Parameter
Min.
Max.
Resistor range
1.0 kΩ
25 kΩ
Increment
25 Ω
Derating level
10 %
100 %
1%
Warning:
The derating level cannot fall below the minimum physical
dimming level of the LED driver, even if the software displays a lower value.
Resistor-based mode
The resistor-based mode is activated by default. If the
connected resistor sensor value falls in the range between
6.3 and 5.0 kΩ, the output current is continuously lowered
down to 50 %. The derating level can be varied between
100 and 10 %, a complete switch-off is not possible.
2.2.2 Internal LED driver temperature protection
2DIMLT2 P LED drivers also have an internal thermal
protection. If the maximum tc temperature is exceeded by
10 degrees, the output of the LED driver is switched off
until the temperature has decreased and a power-off/on
cycle has been performed.
In this mode, a common NTC can be used to achieve a
fixed thermal protection as shown in table 6. The specified
temperatures can vary, depending on the used NTC component and the corresponding tolerances.
Note:
To achieve the lifetime data of the driver, the luminaire
manufacturer needs to ensure that the maximum tc
temperature is never exceeded.
10
2DIMLT2 P LED drivers | Features
2.3 Constant lumen function
Over the lifetime of an LED module, the light output drops
due to the aging process of the LEDs. To achieve a constant light output of the module, the LED driver stores the
operating hours of the LED module and increases the
output current to react to the light output drop. To set this
feature according to the applied LED module, the Tuner4TRONIC® software can be used as shown, for example,
in figures 14 and 15.
Figure 16: Constant lumen function –
possible savings
Figure 14: Constant lumen programming table
The exact values for programming the constant lumen
function for the connected LED module need to be obtained from the corresponding LED supplier.
Figure 15: Constant lumen programming graph
(operating time = 10 kh)
2.4 End of life
The LED driver can indicate that a preprogrammed lifetime
of the connected LED module is reached and the module
should be replaced. This function has to be activated in
advance via the Tuner4TRONIC® software. The “end of life”
indication can be programmed as shown in figure 17.
Figure 17: End of life setting
The output levels have to be steadily increasing from the
beginning to the end.
Warning:
The output level is indicated as a red number if the level is
set higher than 100 %. In this case, the reliability and safety
of the module needs to be checked if the nominal operating
current is exceeded. It is not possible to achieve a higher
output current than the maximum nominal output current
of the LED driver.
If the specified lifetime is reached, the LED driver indicates
this through a lower light output during the first 10 minutes
of the switch-on period, as shown in figure 18.
Figure 18: “End of life” behavior without switch-on
fade time
Output level [%]
Output
current
The output level cannot fall below the minimum physical
dimming level of the LED driver, even if the software displays a lower value.
By clicking the “Savings” button, the estimated energy
savings are calculated as shown in figure 16. This value
is only an estimation because it does not consider, for
example, the LED Vf behavior and the efficiency of the driver.
Minimum
dimming
current
Time
10 minutes “end
of life” indication
11
2DIMLT2 P LED drivers | Operating modes
3 Operating modes
The operating modes of a 2DIMLT2 P LED driver can be
selected using the Tuner4TRONIC® software. Only one
mode can be selected.
Figure 19: Operating modes
Figure 20: Wiring for on/off operation
Luminaire 1
Luminaire 2
2DIMLT2 P
2DIMLT2 P
L
N
LED+
LED-
DIM-
LT2
DIM+
L
LED module
N
LED+
LED-
DIM-
LT2
DIM+
R set
R set
LED module
PE
L1
S1
N
Switching cabinet
3.1 On/off operating mode
2DIMLT2 P LED drivers can also be used in a simple on/off
operating mode. The dimming mode has to be set to “No
dimming (ON-OFF)”.
12
2DIMLT2 P LED drivers | Operating modes
3.2 AstroDIM feature
The AstroDIM feature allows an autonomous dimming without the need for an additional control line. The 2DIMLT2 P
LED drivers support up to five independent dimming levels
and flexible settings of fade times between the individual
dimming levels.
The output levels can be set to between 10 % and 100 % in
steps of 1 %.
This family only supports the astro-based AstroDIM mode.
Time-based: Not supported.
Astro-based: The dimming profile defined in the reference schedule is referenced to the annual average middle of
the night, which is calculated based on
the theoretical sunrise and sunset times.
The durations of the different dimming levels are derived
from an internal clock. The LED driver does not have a
real-time clock.
Warning:
If the output level is set below the minimum physical dimming
level of the LED driver, the minimum dimming current is used.
The software still displays the original value.
Figure 21: Wiring: AstroDIM
Luminaire 1
Luminaire 2
2DIMLT2 P
2DIMLT2 P
L
N
LED+
LED-
LT2
DIM-
DIM+
L
LED module
N
LED+
LED-
LT2
DIM-
DIM+
R set
R set
LED module
PE
L1
S1
N
Switching cabinet
13
2DIMLT2 P LED drivers | Operating modes
3.2.1 Astro-based mode
In this mode, the LED driver performs a dimming profile
based on the daily power-on and power-off times. The
dimming schedule is adapted according to the length of
the night.
reference schedule. The minimum length of one dimming
period has to be longer than the AstroDIM fade time. Valid
time values can be set between 12:00 pm and 11:59 am. If
less than five output levels need to be performed, two
sequenced levels have to be set to the same value.
The Tuner4TRONIC® software calculates the annual average middle of the night based on the theoretical sunrise
and sunset times, which are related to the location selected
in the software. Based on this average middle of the night,
five independent dimming periods can be defined in the
Note:
The maximum duration of one step is limited to ≤ 8 hours.
The defined dimming profile is already performed after the
second power-off/on cycle after programming.
Figure 22: Astro-based AstroDIM
Fade timing:
— AstroDIM fade time: Fade time between the different
dimming levels.
Table 8: Fade timing parameters
(astro-based mode)
Figure 23: Schedule by day
Parameter
Min.
Max.
Default
AstroDIM fade time
0s
3 min
3 min
The “schedule by day” in the AstroDIM feature tab calculates the estimated dimming behavior for a specific day
based on the theoretical sunrise and sunset times. If daylight saving has to be considered, the corresponding check
box needs to be ticked. The LED driver itself is not able to
detect summer and winter time and does not have an internal real-time clock.
In case the installation is not powered on and off at the
calculated sunrise and sunset times, the correct values
can be entered in the manual mode as shown in figure 23.
The AstroDIM function in astro-based mode relies on an
intelligent algorithm. It starts after the first valid night and
reaches its maximum precision after 8 valid days. A valid
on-time is defined if the duration of the operation is longer
than 4 hours and shorter than 24 hours.
14
2DIMLT2 P LED drivers | Operating modes
Figure 24: Use cases of AstroDIM mode
Output level [%]
The AstroDIM profile is performed after the first valid
on-time.
12 3 45
Mains
Night 1
Night 2
Time
Day 2
Time
On
First
power-on
Off
Day 1
Case A
Output level [%]
Voltage dips of less than 100 ms do not affect the
on-time (case B).
Mains
1 23
45
12 3 45
Night 1
Night 2
Time
Day 1
Day 2
Time
On
Off
Short voltage
dips (< 100 ms)
Case B
Output level [%]
If the on-time of the LED driver is shorter than 4 hours, it
is not saved and therefore not used to calculate the next
on-time (case C).
Mains
1
1 2
12 3 45
Night 1
Night 2
Time
Day 1
Day 2
Time
On
Off
Case C
15
2DIMLT2 P LED drivers | Operating modes
Mains
Output level [%]
Operating time longer than 24 hours
12 3 45
12 3 45
12 3 45
12 3 45
Night 1
Night 2
Night 3
Night 4
Time
Day 1
24 h
24 h
24 h
Time
On
Off
Case D
If the on-time of the LED driver is longer than 24 hours, it is
not saved and therefore not used to calculate the next ontime.
Note:
2DIMLT2 P LED drivers are not intended to be operated
longer than 24 hours since the start time of each dimming
step can vary significantly due to the tolerance of the
internal clock.
3.2.2 Presence detection in AstroDIM mode
In the “AstroDIM + presence detection” dimming mode, it is
possible to override the dimming profile of AstroDIM by shortening the 0–10 V interface with an external relay triggered by
a sensor (e.g. motion sensor or presence sensor). If the
0–10 V interface is shortened, the output level is set to 100 %.
Note:
The relay should be suitable for small currents (~1 mA for
the 0–10 V interface) and also provide the sufficient insulation to maintain the insulation level between the primary
and secondary side of the LED driver.
Figure 25: AstroDIM wiring with presence detector
Luminaire 1
Luminaire 2
2DIMLT2 P
2DIMLT2 P
L
N
LED+
LED-
LT2
DIM-
DIM+
L
N
LED+
LED-
LT2
DIM-
DIM+
Relay
Relay
R set
R set
LED module
LED module
LED module
PE
L1
S1
N
SD
Switching cabinet
L
N
L'
Sensor
16
2DIMLT2 P LED drivers | Operating modes
3.3 StepDIM feature
StepDIM is a one-step dimming mode using an additional
control line or a switched phase (pilot line) to control one or
more light points and set the light output to a preprogrammed
light level.
To enable StepDIM operating mode, the 2DIMLT2 P LED
driver has to be set to “0–10 V” operating mode using the
Tuner4TRONIC® software.
In order to enable the StepDIM functionality in combination
with the 2DIMLT2 P LED driver family range, an additional
relay (triggered by the StepDIM line) has to be connected to
the 0–10 V interface. The light output level can be set in the
“0–10 V” feature of the Tuner4TRONIC® software.
Note:
Please select a relay suitable for low currents (~1 mA on
0–10 V interface). To ensure a high reliability; the 0–10 V
interface has to be switched using two relay contacts
connected in parallel.
Figure 26: StepDIM wiring
Luminaire 1
Luminaire 2
2DIMLT2 P
2DIMLT2 P
L
N
LED+
LED-
LT2
DIM-
Relay
LED module
DIM+
L
N
LED+
LED-
LT2
DIM-
DIM+
Relay
R set
R set
LED module
LED module
PE
L1
S1
N
Lx
S2
Switching cabinet
Figure 27: StepDIM settings via 0–10 V feature
In some installations, leakage currents might occur between
the different phases due to old or damaged cables, which
have insufficient insulation or high-capacitance coupling.
The relay can be triggered if the leakage currents exceed
the inactive SD input current. False triggering can be avoided by connecting the SD input to the neutral, using a bypass
capacitance/resistance between SD and N and/or a relay
with a high release voltage.
17
2DIMLT2 P LED drivers | Operating modes
3.3.1 Mixed StepDIM installations with 3DIM and
2DIMLT2 P LED drivers
2DIMLT2 P LED drivers with an external relay can be used
directly with 4DIMLT2 LED drivers while compatibility with
3DIM drivers is only given in case they also have an external upstream relay (as described in the 3DIM application
guide).
Figure 28: 2DIMLT2 P StepDIM with mixed 3DIM drivers and 4DIMLT2 LED drivers
Luminaire 2
Luminaire 1
Luminaire 3
4DIMLT2 E
2DIMLT2 P
3DIM ECG
L
N
SD
DA
DA
LED+
LED-
NTCset
Vset
+12Vset
GNDset
L
N
LED+
LED-
LT2
DIM-
DIM+
L
N
SD
DA
DA
LED+
LED-
LED-
LEDset
NTCset
LED module
Relay
LED module
R set
LED module
PE
L1
S1
N
Lx
S2
Switching cabinet
3.4 0–10 V operating mode
In order to be able to control the 2DIMLT2 P outdoor LED
drivers, an isolated (potential-free) 0–10 V dimming interface
is integrated in this driver family. It can be used with common 0–10 V dimmers such as brightness sensors or powerline controllers with a valid voltage range of 1–8 V.
Note:
The master device has to be able to dissipate a current of
1 mA which is provided by the driver. If dimming levels
below 30 % are set, it is necessary to ensure compliance
with relevant IEC standards (for example mains current
distortion and power factor). According to UL standards,
dimming down to 10 % is allowed.
The controller has to be able to switch off the mains voltage of the LED driver if the output has to be switched off
completely (see figure 29).
Figure 29: 0–10 V wiring with SLC Controller
Luminaire 1
Luminaire 1
2DIMLT2 P
2DIMLT2 P
L
N
LED+
LED-
LT2
LED module
LED module
1–10 V
DIM-
DIM+
L
N
LED+
LED-
LT2
DIM-
DIM+
R set
R set
Powerline Controller
1–10 V
Powerline Controller
PE
L1
S1
N
Switching cabinet
18
2DIMLT2 P LED drivers | Additional information
4 Additional information
Type
OT 110/120277/1A4
2DIMLT2 P
IP-proof cable connection
In order to maintain the protection rating on the luminaire
level, the open wires of the LED drivers also have to be
protected with an IP-proof cable connection.
OT 100/120277/800
2DIMLT2 P
Table 9: Insulation and Uout
OT 50/120277/1A2
2DIMLT2 P
4.3 Ingress protection (IP)
The unit is intended for built-in use. The 2DIMLT2 P LED
drivers have passed the test for IP 64. Nevertheless, the
LED driver has to be protected from direct exposure, for
example to sunlight, water, snow or ice.
OT 50/120277/800
2DIMLT2 P
4.1 Insulation
2DIMLT2 P LED drivers have a double/reinforced insulation
between the primary and the secondary side and a double/
reinforced insulation between all electronic parts and the
casing.
SELV
SELV
Double
SELV
Insulation (primary/
secondary)
Figure 30: IP-proof cable connection system
Insulation of casing
U out
Solder sleeves (i.e. sealed solder connectors, as shown
below) can be used to build a completely IP-proof system.
The declared IP rating of the solder sleeves needs to be
checked with the supplier.
Double
Double
Double
Double
120 V
60 V
200 V
120 V
The equipotential connection (housing/EQUI) meets the requirements for double insulation versus the primary side
and requirements for basic insulation versus the secondary
side (it complies with the requirements of IEC 60598-1
Annex A – “safe to be touched” – in case of insulation fault
between all secondary circuits and accessible conductive
parts).
Solder sleeve connector and stripped cable ends
Left side: LED module, right side: LED driver
The detailed insulation levels are defined in the instruction
sheet of the product.
Step 1:
4.2 Wiring/connection
2DIMLT2 P LED drivers come with pre-stripped solid copper wires to ensure an easy and quick wiring while ensuring
a high IP rating of the driver. All wires meet the UL1452
safety standards. The EQUI connection needs to be established via the casing. Please ensure a proper electrical connection. The EQUI must be connected to the heat sink of
the LED module to improve the surge withstand capability
of the system and EMI in critical luminaires. The connection
of the EQUI (= casing) to protective earth is only necessary
in protection class I luminaires or to meet UL approbation
in case of connection to dead metal parts.
Table 10: Max. output cable length
LED+/LED-
10 m
NTCset/LT2
2m
Insert the cables into the connector (with the stripped wire endings
overlapping).
Step 2:
Use a hot-air gun to solder the wires.
4.4 Incorrect wiring on the output side
2DIMLT2 P LED drivers are inherently protected against
incorrect wiring on the output side. Incorrect wiring between
LED+ and LT2/NTCset can irreversibly damage the ECG.
All other wrong wirings do not irreversibly damage the
ECG. As soon as they are removed, the LED driver works
regularly again.
The NTCset/LT2, LED+ and LED- as well as the 0–10 V wires
are ESD-protected up to 4 kV according IEC 61000-4-2.
4.5 Input overvoltage
The 2DIMLT2 P LED driver can withstand up to 350 VAC for
a maximum of two hours.
19
2DIMLT2 P LED drivers | Additional information
4.6 Surge protection
2DIMLT2 P LED drivers offer a protection level of up to 6 kV
with a unique integrated overvoltage suppression for the
connected LED module, which minimizes the stress on the
LED module and thus ensures high reliability in the field. To
achieve the surge protection levels, the housing of the driver
(EQUI) needs to be electrically connected to the heat sink
of the LED module (see figures 31 and 32). For the surge
protection levels and test conditions mentioned below, the
voltage stress between the LED module and the heat sink
can be kept below 1.0 kVpeak. The EQUI pin meets the
requirements for protection class I and II luminaires.
The following protection levels can be achieved for class I
and II luminaires:
Table 11: 2DIMLT2 P surge protection levels
Surge between
Test condition acc. to
EN 61547
L-N
6 kV at 2-Ω source
SD-N
6 kV at 2-Ω source
L-EQUI/N-EQUI
6 kV at 12-Ω source
If an additional external surge protection device is used,
please contact your OSRAM sales contact for support.
Figure 31: Protection class I luminaire
Electronically connect driver housing
to heat sink and PE
LED module
OPTOTRONIC® 2DIMLT2 P
Cable
LED driver
PE
N
N
L
L
Figure 32: Protection class II luminaire
Electronically connect driver housing
to heat sink
LED module
OPTOTRONIC® 2DIMLT2 P
Cable
LED driver
N
N
L
L
20
2DIMLT2 P LED drivers | Programming
5 Programming
2DIMLT2 P LED drivers can be programmed using the
Tuner4TRONIC® software together with the hardware programmer “OT Programmer”. This software consists of the
following software packages:
— T4T – Development
— T4T – Production
— T4T – Dynamic Link Library (DLL)
— T4T – Command Line Version
After registration, the software can be downloaded from
the www.myosram.com portal.
Disclaimer
All information contained in this document has been collected, analyzed and verified with great care by OSRAM.
However, OSRAM is not responsible for the correctness
and completeness of the information contained in this
document and OSRAM cannot be made liable for any
damage that occurs in connection with the use of and/or
reliance on the content of this document. The information
contained in this document reflects the current state of
knowledge on the date of issue.
For more information on the programming of 2DIMLT2 P
LED drivers, please consult the Tuner4TRONIC® manuals.
Figure 33: LED driver programming
2DIMLT2 P
PROG+ [OG]
PROG- [BU]
+ OT Programmer
USB
USB
PC
2DIMLT2 P LED drivers have to be programmed without
supply voltage (see figure 33). This prevents electric shocks
and reduces complexity during the production process.
The system is still safe in case the LED driver is powered
and the OT Programmer is connected. The cable length
between the OT Programmer and the LED driver should not
exceed 2 m.
Note:
A power-off/on cycle is necessary to activate the
programmed parameters.
Performance check:
If electronically controlled control gears are combined with
electrical power supplies, the electronic circuits of both
devices might influence each other.
This could lead to wrong measurements (e.g. lower power
factor compared to the mains grid). In order to avoid these
effects, a mains filter should be installed after the electrical
power supply.
21
08/15 OSRAM S-GI MK EM Subject to change without notice. Errors and omissions excepted.
www.osram.com
OSRAM GmbH
Head office:
Marcel-Breuer-Strasse 6
80807 Munich, Germany
Phone +49 89 6213-0
Fax
+49 89 6213-2020
www.osram.com
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