tams elektronik B-6, Manual

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Booster B-6 t a ms elektronik
Background information: Output signal
Symmetrical output signal
The output signal is created by constantly reversing the polarity of the transformer voltage
according to the specifications of the digital control signal from the central unit. Since the
same voltage is always present at the output (alternately positive and negative), the output
voltage at the booster output of the B-6 is 100 % symmetrical.
Use of the ABC braking method
This symmetrical output voltage is required for the use of the ABC braking method. The ABC
braking method is based on the fact that, deviating from standard operation, asymmetrical
voltages are generated at the two conductors in the braking sections.
Galvanic separation  Continuous system ground
In digital layouts, the circuits supplying the tracks and the digital equipment can either be
galvanically (i.e. electrically) separated from each other or connected to a common,
continuous ground. Establishing a common, continuous ground is prone to errors in practice
and therefore unreliable, especially in larger installations.
By using galvanically separated circuits, ground loops ("hum loops") and fault currents, which
can cause malfunctions and in the worst case damage to the digital devices, can be reliably
prevented.
The inputs and outputs of the B-6 are galvanically separated from each other by optocouplers.
This means that there is no electrical connection between the digital control unit and the
booster output.
Use with s88 feedback units
If a common system ground is required, e.g. when using the s88 feedback system, the ground
connection of the s88 feedbacks must be connected to a rail. Just as with the use of ground-
related boosters, it is also crucial with this variant that the ground connection is made to the
"correct" rail, i.e. always to the continuous rail.
10 | Your B-6