The proxy board

UM0526

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The proxy board

This board could be considered the end board of control systems commonly used in factory

automation environments. The board also offers a connector that allows interfacing it with

other 24 V supplied systems or systems like the CLT3-4BT6 board for IO protection in order

to connect it to control boards typically running at 3.3 V or 5 V. A plaque for mounting the

sensing element at distances up to 2 m (look forward for details) can be taken into

consideration in systems using the STEVAL-IFS007V1. The main features are as follows:

●

Four TDA0161 proximity detectors, able to detect the current losses in the passive coils

connected to the STEVAL-IFS007V1 board. They act as oscillators and integrate the

sensing part constituted of the coil (typically 330 µH, 0.54 A standard coil) and an

external conditioning circuitry useful to adjust the detection distance

●

Each proximity detector is powered by a common 24 V supply

The layout of the STEVAL-IFS007V1 board is shown below.

Figure 2.

STEVAL-IFS007V1 layout

1.1

The coil support

Figure 3 shows an example of a physical support able to host the coil. This could be done

for the remote positioning of the sensing elements (the 2 square holes are useful to fix the

plaque to external supports, walls, etc.).

Figure 3.

Design of the plaque with the physical dimensions