Esu 50708 User manual

P/N 00815-15732
50708, 50709 Digital Car-Interior lighting
Warnings
The LED interior lights are intended for installation in model railroad cars.•
All connection work should be carried out only with the power turned off.•
Adhere to the principles as outlined in this manual.•
Protect from moisture and humidity, as well as mechanical force or pressure. To avoid damage do not bend•
the lights unnecessarily.
Be sure when assembling the vehicle that no cables are pinched or metal parts of the car are touched or•
short circuits will occur.
It is easy to vary the color of the LEDs, and their brightness within the manufacturer‘s tolerances.•
Main Features
The ESU LED car interior lights provide you with 11 LEDs for uniform illumination in your cars. The
integrated multi-protocol decoder can be used with DCC or Motorola® and works on analogue DC
layouts. The operating mode is automatically recognized. The following characteristics distinguish the
interior lights specifically:
11 warm white LEDs (50708).•
11 yellow LEDs (50709).•
Built-in constant voltage source for uniformly bright light, regardless of the track voltage.•
Individually adjustable brightness.•
The lighting strip can be shortened at eight points.•
A built-in buffer capacitor that bridges small power interruptions.•
Optionally, 50706 energy storage (a „power pack,”) can be connected to bridge longer interrup-•
tions.
The 11 LEDs are divided into five groups, each of which is individually switchable.•
Each interior lighting strip comes with a red rear light, which can be switched in relation to the•
direction of travel.
Connection for a directional white front light (LED only, up to 20mA).•
Connection option for further external loads (up to 100mA).•
Different lighting effects such as soft dimming, neon effect, defects or neon lighting, battery light,•
can be assigned to each group individually.
Delay and random lights can be selected individually.•
Installation of Car lighting
LED - Groups
The 11 integrated LEDs as shown in Fig. 1 are divided in the 5 groups „A“ to „E“ and connected
directly to an output of the integrated function decoder. Each group can be switched individually and
provided with light effects.
Shortening the Car lighting
The interior light strip should first be cut to the required length. The PCB can be shortened at one of
the points marked in Fig. 1. Cut along the dotted line with a small hacksaw. The remaining pieces can
be used elsewhere for your own purposes.
IMPORTANT: Be careful when cutting that you do not damage any components on the pads and
PCB.
Power supply
The pre-wired power cable may be cut to the required length. All connection points left and right
are already connected in the circuit board. Therefore, one cable per side is sufficient. One side is
connected to the left wheel (or with the car ground/mass for Märklin models), the other side to the
right wheel of the car (or the Center rail for Märklin models). The polarity is irrelevant; each strip has
an internal rectifier.
ESU offers SKU 50707 “wheel pickups” appropriate for almost all cars. For cars with current carrying
couplers, the two supply lines alternatively connect with the coupling contacts.
The easiest way to attach the PCB under the car roof is double-sided tape. You can also look in the
interior design for suitable anchor points.
Connecting a buffer capacitor
An integrated Tantalium capacitor eliminates flickering illumination during short power interruptions.
If there is a poor connection situation, an additional buffer capacitor of at least 35V and a capacity of
4700 uF maximum can be connected to the position shown in Fig. 2.
Connecting a PowerPack
If you would you like to have the lights on (at red signals, for example), even during a prolonged
power failure, a simple buffer capacitor is not sufficient. You can connect the high-energy storage
available under the order number 50706. In Fig. 3 the corresponding connecting points are marked
with „Power Pack +“ and „Power Pack -“.
Make sure the polarity is correct, otherwise both the Power Pack and the lighting strip may be des-
troyed!
Included rear lights
Each lighting strip has red rear lights that are already soldered on. These work directionally in both
digital and analog model. If the rear lights are not needed, you should remove them. The rear lights
can be used at both ends.
Therefore, the wires can be re-soldered on the other end. When re-soldering pay attention to the
correct polarity.
Brightness Control
By means of the control shown in Fig. 4, the maximum brightness of all LEDs together can be adjusted
as desired. The brightness can be further reduced individually by programming.
Optional front light
For operation in Control/Cab car, as shown in Fig. 5, a white front light can be added. Only white or
yellow LEDs with a maximum current consumption of 15mA may be used. A series resistor is already
installed. The front light works like the rear light, directionally.
External load (AUX1)
To switch external loads (eg toilet lighting, destination signs, etc.) a separate transistor output with
a maximum current of 100mA is available. It is shown in Fig. 6, and is preferably connected to the
voltage + U. A series resistor for LEDs is not installed. The U + voltage is not buffered by the power
pack and the control to adjust for brightness has no effect.
Operation
Digital operation
The interior lighting works with any digital system that uses either the DCC or the Motorola® format.
The decoder recognizes the protocol automatically
The default address is 03 with 28 speed steps (DCC).
F0 F0 turns on the red rear light (direction of travel)
F1 switches the external load (AUX1)
F2 switches all the LEDs together
F3 switches the LEDs 1-3 (group „A“)
F4 switches the LEDs 4-5 (group „B“)
F5 switches the LEDs 6-7 (group „C“)
F6 switches the LEDs 8-9 (group „D“)
F7 switches the LEDs 10-11 (group „E“)
Analog operation
The interior lighting can also be used with analog DC power supplies. In this case, the factory setting is
set up so that all the LEDs light up(the red rear lights as well as any installed front light.) These respond
to the direction of travel with DC power supplies.
Customize decoder settings
All adjustable parameters of the interior lights are in so-called CVs („Configuration Variables „) ar-
ranged according to the NMRA DCC standards. These can be selectively modified with your control
system.
Programming with DCC systems
The interior lighting strip knows all programming methods of the NMRA. Use either the Programming
track or the main track programming („Programming on Main“). Note the relevant section in the
manual of your Command Station.
Connect to AUX1 a load of 60mA to 100mA , in order to read CVs!
Programming with Märklin®6021
The Märklin® central unit 6021 works differently: Since it does not comply with the NMRA DCC
standards, the interior lighting start a special, obligatory programming procedure. Reading of values
is not permitted.
There are two modes:
In the short mode parameters with a number below 80 can be set provided the desired value is•
also lower than 80.
In the long mode, all parameters with values from 0 to 255 are adjustable. Since the display of•
the 6020 /6021 is limited to two-digit numbers, values must be split and entered in two separate
steps.
Changing the Programming Mode
Enter the programming mode with the 6020/6021:
The throttle must be set to „0“. No other locomotives may be on on the layout. Watch out for flashing
signals of the locomotive!
Press the „Stop“ and „Go“ buttons of the 6021 simultaneously until a reset has been triggered•
(alternately pull the mains plug of the transformer). Press the „Stop“ button in order to switch
off the track voltage. Enter the current decoder address. If you do not know the current address,
simply enter „80“.
Activate the change-of-direction button (turn the throttle knob to the left beyond the arrestor until•
you hear a click sound), hold it in this position and then press the „Go“ button
Please bear in mind that the 6020/6021 only permits you to enter values from 1 to 80. The value 0 is
missing. Always enter „80“ instead of „0“.
Short mode
The decoder is in the short mode (the headlights flash periodically in brief intervals).
Now enter the number of the CV that you want to adjust e.g.: „01“. Always enter this number•
with two digits.
For confirmation activate the change-of-direction routine (now the lights flash twice very quickly).•
Now enter the new value for the desired CV, e.g.: 15 (two digits).•
For confirmation activate the change-of-direction routine (now the lights light up for about one•
second).
Then you can enter other CVs as desired.•
Selecting „80“ allows you to exit the programming mode. Alternately you can switch off the track•
voltage and then on again (press the „Stop“ button on the 6021, then the „Go“ button).
Long mode
You access the long mode by entering the value 07 in CV 07 while in the short mode. The decoder
confirms the change to the long mode by slowly flashing lights.
Enter the hundred-digit and the ten-digit (decade) of the CV that you want to change. Example: If•
you want to adjust CV 124, you enter „12“.
For confirmation activate the change-of-direction routine (now the lights flash periodically: long –•
short – long – short - etc.)
Now enter the unit of the CV („04“ in this example).•
For confirmation activate the change-of-direction routine. Now the decoder expects the entry of•
the CV value. The lights flash periodically: long – short – short).
Now enter the hundred-digit and the ten-digit (decade) of the new CV value (as a two-digit num-•
ber). Example: You want to write the value 135. Therefore, you enter „13“.
For confirmation activate the change-of-direction routine. Now the lights flash periodically: long –•
short – short – short).
Now enter the unit of the new CV value as a two-digit number („05“ in this example).•
For confirmation activate the change-of-direction routine (now the lights light up for about one•
second).
Now you can adjust more CVs in long mode.•
Exit the long mode by switching off the track voltage and then on again (press the „Stop“ button•
on the 6021, then „Go“ ).
Programming with LokProgrammer
Using the separately offered ESU LokProgrammer 53451/53452, you can comfortably change your
interior lighting CVs right on your computer screen with a mouse click. This will save you from a search
for CV numbers and values.
Setting parameters
Function outputs
At each function output light effects and special effects can be set. For each output a CV is set
up(CV113 - CV 120, see table), in which the desired brightness value and the code for the desired
mode is stored.

For example, to simulate a flashing light with brightness 5 for the external load (AUX1). Write in the
CV 115 the value 5 + 32 = 37 to get that.
Switch-on-delay
If desired, you can determine for each of the 8 outputs, whether these switch on immediately or
delayed. This requires as shown in the table above, the value 64 to be added to the previous value of
the CV for the output. The exact time of the delay is randomly determined each time within the limits
defined in CVs 59 and 60.
Random light
If desired, you can determine for each of the 8 outputs, whether it after switching via a function key
it later goes randomly off again and later back on. For this purpose, the value 128 must be added to
the previous value of the CV for the output as shown in the table above. When and for how long the
output is then turned off, respectively, is determined by CVs 61 and 62.
Start blink number of neon light
In CV 63, you can determine how often a neon lamp flashes before it is permanently switched on.
Period for flashing lights
If the function flashing light or strobe was selected for an output, the period (and thus the blink rate)
is stored for all outputs relating it in CV 112.
Function mapping
The outputs can be freely assigned to function keys. For each of the functions F0 to F20 of the digital
system a decoder CV is responsible. For the function F0 forward, it is the CV33, for the function F0
backward it is the CV34 and so on up to CV136 for the F20 function. The value in this CV determines
which function output reacts to which function.
Example: In CV 35 a value of 4 specifies that the function output AUX1 for forward travel corresponds
to Function 1.
What values must be entered in order to assign the functions to function outputs, can be seen in the
next table:
Search in the table the intersection between
the desired function ine and•
the column of the desired function output.•
Shown is the number that should be entered in the relevant CV for the desired assignment. The
factory settings are shown in bold. If a function button should switch more outputs, simply add the
values of the desired functions.
Decoder reset
You can always reset the decoder to the factory settings.
Write a value of 08 to CV 08.
Firmware update
The interior lighting strip software can be updated at any time, to correct bugs or retrofit new func-
tions. For that you will need the ESU LokProgrammer 53451/53452 with the most recent PC software
for it. During the writing of parameter the firmware will be updated when appliccable.
Technical data
List of all supported CVs
Name Description Brightness Mode Dealy on Random light
Dimmer Fast light on and off 0 - 7 + 0 + 64 + 128
Zoom Slow dimming of lights off and on 0 - 7 + 8 + 64 + 128
Neon light Neon light simulation 0 - 7 + 16 + 64 + 128
Defective
neon light Defective neon light, flickering 0 - 7 + 24 + 64 + 128
Flashing light phase I Output flashes with adjustable frequency 0 - 7 + 32 + 64 + 128
Flashing light phase II Output flashes with adjustable frequency 0 - 7 + 40 + 64 + 128
Strobe Flashing light with adjustable frequency 0 - 7 + 48 + 64 + 128
Flickering light Flickering light simulation 0 - 7 + 56 + 64 + 128
CV Function Front
light
Rear
light AUX1 LED
Group „A“
LED
Group „B“
LED
Group „C“
LED
Group „D“
LED
Group „E“
33 F0 forward 12 4 8 16 32 64 128
34 F0 reverse 124 8 16 32 64 128
35 F1 forward 1 2 4816 32 64 128
36 F2 1 2 4 816 32 64 128
37 F3 1 2 4 816 32 64 128
38 F4 1 2 4 8 16 32 64 128
39 F5 1 2 4 8 16 32 64 128
40 F6 1 2 4 8 16 32 64 128
41 F7 1 2 4 8 16 32 64 128
42 F8 1 2 4 8 16 32 64 128
43 F9 1 2 4 8 16 32 64 128
44 F10 1 2 4 8 16 32 64 128
45 F11 1 2 4 8 16 32 64 128
46 F12 1 2 4 8 16 32 64 128
47 F1 reverse 1 2 4816 32 64 128
129 F13 1 2 4 8 16 32 64 128
130 F14 1 2 4 8 16 32 64 128
131 F15 1 2 4 8 16 32 64 128
132 F16 1 2 4 8 16 32 64 128
133 F17 1 2 4 8 16 32 64 128
134 F18 1 2 4 8 16 32 64 128
135 F19 1 2 4 8 16 32 64 128
136 F20 1 2 4 8 16 32 64 128
Power supply 4-24V 0 / ~
Modes
DCC with 14, 28 and 128 speed steps (automatic detection)
Motorola® data format
Analogue DC operation
Constant brightness from 6V input voltage
Current consumption 50708: about 25mA
50709: about 35mA
Dimensions 255mm x 7mm (decoder range : 8.1mm)
50708, 50709 Digital Car-Interior lighting
P/N 00815-15732
CV Name Description Range Value
1Loco adress Adress 1 - 127 3
8MakerID Maker (ID) ESU – Writing 8 into CV8 will reset to factory values 151 151
17
18
Long loco adress Long adress
CV 17 holds the higher Byte (Bit 6 and Bit 7 alwas set), CV18
holds the lower Byte. Only used when the function is activated
in CV 29 (See there)
128 -
9999
192
19 Consist Address Additional address for consist operiation. Value 0 or 128 means
consist is disabled
0-255 0
29 Configuration register The most complex CV within the DCC standards.
This register contains important information, some of which are
only relevant for DCC operation
30
Bit Function Value
0Normal direction
Reversed direction
0
1
114 speed steps in DCC operation
28 or 128 speed steps in DCC
0
2
2Disable Analog operation
Analog operation enabled
0
4
5short addresses (CV 1) in DCC mode
long addresses (CV 17+CV18) in DCC
0
32
49 Extended Configuration Additional important settings for Decoders 0 - 255 19
Bit Description Value
3Märklin® 2. Adress Disable
Märklin® 2. Adress Enable
0
8
4Auto Speed step detection DCC OFF
Auto Speed step detection DCC ON
0
16
59 Delay lower limit Minimal value of switch-ON. Delay Multiple of 0.25 Sec. 0 - 64 0
60 Delay upper limit Maximal value of switch-ON. Delay Multiple of 0.25 Sec. 0 - 64 8
61 Random time lower limit Minimum time on for output, using random timing. Multiple
of 0.25 Sec.
0 - 64 10
62 Random time upper limit Maximum time on for output, using random timing. Multiple
of 0.25 Sec.
0 - 64 20
63 Start flash number Neon simulation Number of start flashes for Neon light simulation 0 - 15 020
112 Blinking frequency Blinking frequency of Strobe effects. Always a multiple of 65.536
milliseconds.
4 - 64 16
113 Front light configuration Output configuration „Front light“ 0 - 255 15
114 Rear light configuration Output configuration „Rear light“ 0 - 255 15
115 AUX1 Output configuration Output configuration „AUX1“ 0 - 255 15
116 Output configuration LED 1-3 Output configuration „LED 1-3 Group A“ 0 - 255 15
117 Output configuration LED 4-5 D Output configuration „LED 4-5 Group B“ 0 - 255 15
118 Output configuration LED 6-7 Output configuration „LED 6-7 Group C“ 0 - 255 15
119 Output configuration LED 8-9 Output configuration „LED 8-9 Group D“ 0 - 255 15
120 Output configuration LED 10-11 Output configuration „LED 10-11 Group E“ 0 - 255 15
Cut here
Cut here
Cut here
Cut here
Cut here
Cut here
Cut here
Cut here
Ponts for
connection
power supply
~ ~
LED 1
LED 2
LED 3
LED 4
LED 5
LED 6
LED 7
LED 8
LED 9
LED 10
LED 11
A
B
C
D
E
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
1000uF
35V
- +
-OG +
S 5.5V
0.1F
Brightness controlled by turning pot.
Attention: Use small screwdriver!
+
Only use LED!
Max. current 20mA.
Series resistor is already
installed
Use cap for at least 35V!
Use only ESU “PowerPack”50706!