Concept2 2RT0435T, Applications Manual, Page: 10 / 16

2RT0435T
Target Description and Application Manual
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Recommended Interface Circuitry for Connector X3
Fig. 8 Recommended user interface of 2RT0435T
Description of Interface X3
General
The standard DIC20 interface X3 of the Base Board 2RT0435T is very simple and easy to use. It has the
following terminals:

4 x power-supply terminals (but only one 15V power supply is needed)

2 x drive signal inputs

2 x status outputs (fault returns)

1 x mode selection (half-bridge mode/direct mode)

1 x input to set the blocking time
The Base Board is equipped with a 20-pin interface connector. All even-numbered pins are used as GND
connections. The odd-numbered pins are used as inputs or status outputs. It is recommended to use a 20-pin
twisted flat cable. Each input and output signal is then twisted with its own GND wire. All GND pins are
connected together on the 2RT0435T Base Board and should also be connected on the control-board side.
This arrangement produces a very low-inductance connection with high immunity against interferences.