Checking For Correct Installation; Programming Of The Decoder - Viessmann 5242 Manual

3. Checking for correct Installation

The first test should be carried out on a track with
a current limiter e.g. on the programming track of
your DCC command station. If you use the Intel-
libox or the Twin-Center previously switch it to
the programming mode! Put the locomotive onto
the programming track and read out the primary
address (CV1). All new decoders are set to value
03. If there is no feedback, check the wiring of
the wheel pick-ups and motor connections. If you
use an "old" Arnold command station you cannot
read out the address. Instead read out the start
voltage (R2 = 2 bars). The start voltage of all new
decoders is set to the value 7. Once this first test
was successful, you may put the locomotive onto
any normal track connected to the DCC command
station.
The decoders indicates a short circuit
through blinking headlights. In this case
GB
switch off the power immediately!
Warning: Even in case of a motor short
circuit the decoder may provide feedback to
the command station when standing on the
programming track. Therefore check very
carefully that the wiring is correct!
Now try to operate the locomotive under address
03 at the lower speed steps (initially switch off any
functions) and check the direction of travel. If not
correct, the wheel pick-ups or motor connections
have been swapped. Now you can test the lights
and auxiliary functions. If the headlights don't
match the direction of travel, change the connect-
ing wires (white, yellow). If the locomotive stops
when the lights or the extra functions are switched
on, there is a short circuit in the wiring or an over-
load of the light or function outputs. An overload
can occur for example through high digital volt-
ages and the starting current of the bulbs. If nec-
essary, put a resistor of 47 Ω / 0.25 W between the
bulbs and the function output or reduce the value
of the output (see CV49 / 50).
If the overload protection trips during acceleration,
the track voltage may be too high. A locomotive,
which according to the data sheets, draws a cur-
rent of 0.6 A at 12 V, will draw a current of approxi-
mately 1.1 A at 21 V (e.g. Roco Lokmaus 1 or 2,
Lenz compact or the Intellibox in setting "H0"). So
please use transformers with a secondary voltage
of 12 or 14 V if combined with command stations
without voltage control.

4. Programming of the Decoder

The decoder can be adapted to your locomotive
and the desired operation characteristics through
programming of so called configuration variables
12
(CV's). Follow the instructions of your digital com-
mand station when programming. Programming
on the programming track can be done through
"Physical Register Addressing", "Paged CV Ad-
dressing" or "Direct Mode Addressing". In mode
"Physical Register Addressing" only certain CVs
can be adjusted.The following allocation applies:
Register
1
2
3
4
5
6
7
8
Additionally all configuration variables of the de-
coder (except addresses) can be changed during
operation with Operation Mode Programming
(programming on the main).
Programming with the "old" Arnold command
station (equivalent to Märklin Digital = , art.no.
6027): These command stations operate with pro-
gramming mode Physical Register Addressing and
can only program the registers R1 to R5. Please
refer to the above table for the correct number of
bars for each CV. The address and all registers,
which contain a value 0, can be programmed but
not read out. The decoders cannot be fully pro-
grammed since the range of values of these com-
mand stations is limited from 1 to 99.
Programming with the Lenz "compact" com-
mand station: With Lenz "compact" version 1 you
can only program the registers R1 to R6. With the
later versions you can program and read out all CVs.
Programming with Märklin "Control Unit" 6021:
Programming of all parameters is carried out elec-
tronically without opening the locomotive (no DIP-
switches required). Proceed as follows:
Make certain that only the locomotive to be pro-
grammed is on the track. Now switch on the Märklin
command station or press the "Stop" and "Go"
buttons at the same time until a reset is triggered.
Enter the address (alternately address 80 if you
don't know the correct address), turn the speed
control knob as far left as possible (change of direc-
tion) and hold it down for about 8 to 10 seconds.
Thus the decoder changes to programming mode,
which is indicated by the blinking lights. Release the
speed control knob.
Now enter the number of the configuration regis-
ter, which you want to change (e.g. "05" for CV5
– maximum speed). Confirm this entry by turning
Bar CV-No.
1 1
2 2
3 3
4 4
5 29
–
7
8