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SD-34 / WD-34
The central unit sending a coil-off-signal or not has direct effects on the on-time
(see CV#3 to 6). In order to set the minimal switching time properly, it is
important to set in CV#33 if the central unit in uses sends this signal or not.
Examples for central unit not sending a coil-off-signal: Intellibox from
Uhlenbrock, central units from Lenz.
Examples for central unit sending a coil-off-signal: MasterControl from Tams.
Programming the configuration data for the SD-34
Name of CVs
Configuration
data 1
Advice: When RailCom is not used it is recommended to set CV#29 to the value
"0".
Configuration
data 2
In standard operation the decoder checks directly after having been switched
on if the booster for the connected section supplies a RailCom cutout. In case
faulty detections are mounting the RailCom check should be switched off. This
has no effect on the feedback with RailCom.
9. Check list for troubleshooting
§
Parts are getting too hot and/or start to smoke.
!
Switch off the digital system immediately !
Possible cause: one or more components are soldered incorrectly.
à Perform a visual check.
§
The decoder does not work.
Possible cause: The connection of the decoder to the central unit
and / or the power supply is interrupted. à Check the connections.
Possible cause: The connection of the decoder to the accessory or
the points is interrupted. à Check the connections.
Possible cause: The central unit is not operating. à Check if the
central unit is ready for operation.
CV-
Input value
no.
(Default)
29
128, 136
(136)
33
0, 1
(0)
Remarks and tips
RailCom off
RailCom on
RailCom check on
RailCom check off
English
128
136
0
1
Page 47
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