UM0526 STMICROELECTRONICS | Alldatasheet
Document overview
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- PDF pages: 9
Technical content
Datasheet sections
- 1 The proxy board
- 1.1 The coil support
- 1.2 The CLT3-4BT6 board
- 2 Proxy board application example
- 2.1 Application description
- 3 Board schematic
- 4 Revision history
output span is about 3 V. On-board jumpers are placed in order to enable/disable channels. please refer to the TDA0161 device datasheet. Figure 1. The STEVAL-IFS007V1 board
1 The proxy board
- 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
plaque to external supports, walls, etc.). Figure 3. Design of the plaque with the physical dimensions
1.2 The CLT3-4BT6 board
circuitry of a digital input module (IO) in industrial automation environments. the logic input and the associated high side sensor (2-3 wire sensors) or switch. Figure 4. The CLT3-4BT6 board
2 Proxy board application example
identifies the four main blocks of the system. Figure 5. The boards used in the application
24 V 5 V
24 V input 5 V output
2.1 Application description
In this section, a typical application is explained. Figure 6. Application example using two STEVAL-IFS007V1 boards and the related
- First of all, supply the system boards. To supply the proxy board use a DC power supply laboratory equipment providing a stabilized voltage at 24 Vdc. In this case, no standard connectors are needed as it is possible to see on the board itself. The CLT3- 4BT6 board is supplied by connecting it to the proxy board for the input stage and to the control board for the output stage. To do this, please pay special attention to the arrangement of the pins on the boards, by referring to the silkscreen of the boards themselves: do not exchange Vcc and GND pins, in order to make the connections safe. Note: Important: if the above first steps were followed, the power supply board is not needed. Do not connect this as it has no impact on system functionality. A power supply board could be helpful only if a power supply is available in your laboratory equipment, in order to help you in obtaining a 5 V supply from the 24 V supply you are able to provide.
- Running the system. Even if it is possible to attach up to 4 passive detectors, in order to simplify the procedure, start by attaching just one coil to one of the four channels of the proxy board. It is possible to plug in the coil directly to the connector or use a couple of wires in order to have a distance between the point of measurement and the proxy board where the TDA0161 are hosted (distance of up to 2 m). Concerning the coil, please refer to the TDA0161 datasheet to choose the most appropriate coil, the application uses a 330 uH/0.54 A standard coil.
- Once the steps above are completed, a chain of blinking LEDs is visible, one on each board: the corresponding one on the proxy board, if you use only one detector, the one on the corresponding channel on the CLT3-4BT6 interface protection board and the CLT3-4BT6 Proxy-board Control board CLT3-4BT6 Proxy-board Control board Metallic object detection Local alert Remote alert Event transmission
- The functionality of the systems can be completed by connecting a second node to the CAN connector. To do this, attach a second control board with the same firmware running on the first one or program a new board, even if mounting a different microcontroller. Follow the specifications written in the next section in order to arrange the right settings in its CAN peripheral.
3 Board schematic
Figure 7. The STEVAL-IFS007V1 schematic
4 Revision history
Table 1. Bill of materials
18 C1,C2,C3,C4,C5,
71 J 2 6-pin standard male
Table 2. Document revision history 20-Mar-2008 1 Initial release.