Cv Table; Expert Mode; Using Railcom In Conjunction With Esu Command Stations; Maintenance - Viessmann 4701 Bedienungsanleitung

cables of your semaphore signal from the power supply of your transformer.
The motion sequence you have chosen is now stored in the memory chip of your semaphore
signal – even without power supply. Now you can operate your semaphore on your layout in the chosen
motion sequence mode. The selected profile is also valid in digital mode.
The use of a digital control system allows the variation of even more settings by changing CVs. The
amplitudes and the beginnings of the bouncing movements can be adjusted. You will find more details in
the CV table.

6. CV table

Hint: For some configuration variables the values to be entered are determined by adding the corre-
sponding numbers to the desired settings. These bit-based variables are indicated by italic type in column
3 of the table on page 23 and 24.

7. Expert mode

7.1 Digital mode with locomotive address
Proceed as follows if you want to programme the decoder to a locomotive address:
Decide which digital system you are going to use. Proceed as described in points 1 through 4 in chapter
"Configuration with DCC command stations" or "Configuration with Motorola central units". Set all locomotives
to speed step 0 if your command station does not do that automatically.
Instead of the switching command as per point 5 send a locomotive driving command to the address to be
assigned to this drive. Turn up the throttle in order to send a speed command greater than 0. This address
corresponds to the typical group address of a switching decoder with four double outputs.
Select one of the functions F1 through F4 of this locomotive address, which assigns the functions of this ad-
dress to the signal drive. Thus you may control 4 signals with one locomotive address similar to a decoder for
4 accessories. The address range is limited to addresses from 1 through 99.
Please note that signals with two uncoupled semaphore arms programmed to a locomotive address can only
be switched to Hp0 and Hp1.

7.2 Using RailCom in conjunction with ESU command stations

Only for signals with two uncoupled semaphore arms: When using DCC and RailCom in the ESU mode
(set via CV 33) the base address must be set to one of the first three addresses of a group in order to assure
that the third aspect also has an address within the range of that group. Without RailCom you may use all
four addresses of the group.

8. Maintenance

Caution:
Never dismantle the signal drive. This may result in damage or injury. The Viessmann signal drive is
maintenance-free.

9. Trouble-shooting

All Viessmann products are produced with high quality standards and are checked before delivery. Should
a fault occur nonwithstanding please first check the power supply (dirty tracks, operating voltage). Here-
inafter, we list some other possibilities:
9.1 Signal drive is getting very hot and/or starts smoking.
- Disconnect the system from the mains immediately!
- Check if the wiring was made correctly as shown in this manual.
- Check the state of the electronics housing for damage.
- Possible cause: Short circuit. The signal was not connected correctly.
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