Assembly/connections
5
The power control unit is equipped with a rapid action short circuit fuse. This immediately
switches off the driving voltage to the line if a current of 1 A is exceeded.
This is displayed by means of the
fl
ashing in the illumination ring around the drive direction
switch and the green LED at F 2.
The well-known model railway switching systems (power-down and assignment with a wire
connection) can be performed (
fi
gures 3 + 4). In the case of the power-down a brief increase
in speed can be anticipated during the transition from one electric circuit to the other one even
if the power controls have the exact same settings.
This is due to the overlapping of the non-synchronised impulses of both power control units
which add up the amounts of energy of both controllers during the bypassing of the section-
ing point by the locomotive and the carriage wheel sets. You can obtain additional information
concerning the power-down and assignment in the brochure „Elektric für Einsteiger” „electrics
for beginners” under product no.: 09603.
Figure 1 – Connection of the „TFi2“
1
5
4
3
2
1
7
8
6
1 – Assembly drill hole
2 – Control knob
3 – Drive direction switch
4 – F 1 button
5 – F 1 display
6 – F 2 button
7 – F 2 display
8 – Illumination ring
Figure 2 – Connection of the „TFi2“
„TFi2
Wall plug
component
Line connections
Control terminal
