Terminals 3 and 4 are the Alternate sensor.
When this sensor detects a magnet, the on-board relay will
change state and the TURNOUT will fire to the other side.
When the YardMaster is running in automatic reversing mode
this is the only sensor that will be active.
Terminals 7 and 8 are the Switch A sensor.
Terminals 9 and 10 are the Switch B sensor.
Alternate Sensor
Switch A and Switch B Sensors
These sensors will cause the YardMaster to switch to the appropriate side.
will cause
to connect to
and
will cause
to connect to
. The TURNOUT will also fire in
synchronization and the lamps will change.
If a time delay has been programmed, the YardMaster will switch back to the beginning
state after the timer has expired.
If the Switch A sensor is CLOSED on power up, the YardMaster will perform automatic
time delay switching using the programmed delay value and these sensors will be ignored.
Switch A
Switch Common
Switch A Terminals,
Switch B
Switch Common
Switch B Terminals
Sensor Descriptions
Y
M
ard
aster
Turnout Controller - Lamp Driver - Power Switcher
RR-Concepts.com
1
2
3
4
5
6
20
19
18
17
16
15
7
11
8
12
9
13
10
14
Y
M
ard
aster
Turnout Controller - Lamp Driver - Power Switcher
RR-Concepts.com
1
2
3
4
5
6
20
19
18
17
16
15
7
11
8
12
9
13
10
14
Switch B
Sensor
Switch A
Sensor
Switch Common
Switch
Terminals
A
Switch B Terminals
TO TURNOUT
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