LD-G-14
English
Page 35
The decoder is not suitable for being operated in analogue model railway
layouts run with an D.C. speed control. The decoder evaluates the data
received in such layouts as "braking section", the locomotive therefore
does not run.
In analogue mode the decoder reacts to the analogue changing
direction signal. The lighting is always switched on according to the
direction of travel. Switching on or off the lighting and the additional
functions is not possible.
Driving of the motor
The locomotive decoder drives the motor with a PWM of 16 kHz. This
guarantees a soft and constant run of the motor, with which the
decoder can also be used with coreless (Faulhaber) motors.
Load control
The locomotive decoder has a load control. The load control influences the
motor voltage to keep the locomotive at constant velocity, independent of
additional loads (e.g. running up a gradient, coupled carriages).
The decoder chooses automatically the optimal values of the load
control´s parameters for the connected motor. The range of values
from which the decoder chooses the optimal value can be altered by
programming the decoder accordingly.
Direction of motion
When changing the direction in digital operation the existing direction is
saved and so retained, even if the central unit does not send absolute
driving data (e.g. in Motorola I format).
In order to change the direction of travel in analogue operation a
voltage impulse is applied to the rails which is distinctly higher than the
normal driving voltage. Disturbances from the locomotive motor,
tolerances in the connected components or voltage drops in the rails
can release unintended changes of direction or hinder intended changes
of direction. The voltage needed for a change of direction can be
adjusted by programming the decoder accordingly.
