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KSM-3
Terminal assignment
X1
Inside of the loop
1 → inner rails
2 → outer rails
X2
Layout outside the loop
1 → inner rails
2 → outer rails
X3
Optional: coil driven points (or motor-run points with additional adapter AMW-1 or
AMW plus)
1 →Position of points 1
2 →Voltage supply / Return conductor
3 →Position of points 2
Connecting points
Connecting points to the KSM-3 is optional. You can do without when you do not intend to
switch the points automatically.
Each of the two isolating points is assigned firmly to one position of points. If the position is
"branch" or "straight" depends on the particular mounting situation.
For that reason you have to check after having connected them if the points switch
"correctly", when the locomotive passes the isolating points on its way out of the loop. If not,
you have to interchange the connections of the points (X3-1 and X3-3).
4.3. Setting the sensitivity for the polarity reversal
Proceed accurately when setting the sensitivity for the polarity reversal in order to make sure
the KSM-3 already reacts at the beginning of the voltage drop and alters the polarity within
the loop as quickly as possible. If the inevitably occuring short circuit lasts too long, wheels,
rails and current collectors possibly corrode or locomotives passing the sectioning point
possibly jerk. With a very high current the short circuit interruption of the booster possibly
reacts.
First set the trimm-pot by use of a small screwdriver as far to the left as possible. Then turn it
1.
slowly to the right, until the LED lights up or flashes
2.
further to the right, until the LED goes out or the relay switches (audible by a
clicking sound)
3.
carefully back to the left, until the LED lights up or flashes again or the relay stops
to switch
18 | Connections KSM-3
tams elektronik
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