Lenz Digital plus LR101 User Manual

18 Information LR101
Model railway tracks
Spannungs-
melder
Power consumer
(e.g. locomotive engine)
Track voltage
Feedback
module LR101
Signal output for LZ100/LZV100
Signal
output
8 inputs for
occupancy
detectors
1 input for voltage
detector
LB050
Signal output
Occupancy detector
LB100 / LB101
Occupancy detector
LB100 / LB101
Signal
output
Figure 1: Digital plus feedback system
The feedback module LR101 not only evaluates the information supplied by the
occupancy detectors LB100/LB101 but also the information supplied by one or
several voltage detectors LB050. If the LR101 detects an interruption in the track
voltage, the most recent occupancy status will be 'frozen'.
Example:
A power consumer (e.g. a locomotive) is located in a track section. Since current
is flowing, the LB100/LB101 transmits the information 'occupied' to the LR101. If
the track voltage is interrupted for some reason, so is the current flow and the
LB100/LB101 will transmit the information 'not occupied' when, in fact, this does
not reflect the actual track status. Thanks to the voltage detector LB050, however,
the LR101 has concluded that there is no track voltage. It therefore 'knows' that it
may not transmit the LB100/LB101's information 'not occupied' to the command
station.
Skilful combination of these pieces of information prevents transmission of faulty
messages to the command station in case of a voltage interruption or short-
circuit.
The command station queries the information of all connected feedback modules
LR101/100. This procedure takes approx. 30msec. Only those LR101/100 whose

Lenz Digital plus LR101 Specifications

General

Brand	Lenz
Model	Digital plus LR101
Category	Media Converter
Language	English