System Implementation; Power Supply; Grounding; Mounting On Metal - AEG ARE i2.0x SEMI Manual

Version: 13
Manual ARE i2.0x SEMI release V2
Page: 23 / 26

3. System implementation

3.1 Power supply

SEMI industry uses hdx LF RFID technology. This particular method relies on field gaps, where the RFID field is switched off.
In this gap the transponder answers with its code. This method has the advantage of high read range in laboratory
conditions. However, in a EMV polluted environment, read range of hdx transponders is significantly reduced as even low
noise signals have a direct impact on read range.
Therefore it is absolutely mandatory for system integration to make sure that power supply for ARE i2.0x SEMI is absolutely
stable and clean with no noise. It is recommended to use linear power supplies rather than switching power supplies. All
other applications benefit from this as well.

3.2 Grounding

Please make absolutely sure that ARE i2.0x SEMI is properly grounded. This ensures proper functionality of the entire
system comprising of ARE i2.0x SEMI and AAN Xi9F. Please see chapter 2.1.4 for details on grounding.
Grounding can be achieved by grounding DIN hat rail, as clamp on backside of ARE i2.0x SEMI is connected to ground.
Alternatively, the grounding pin on the frontside of ARE i2.0x SEMI can be used to achieve this.

3.3 Mounting on metal

ARE i2.0x SEMI is typically mounted on a metal DIN hat rail in a metal electrical cabinet. There is no influence of metal on
performance of ARE i2.0x SEMI and therefore nothing to watch out for.
It is recommended to mount AAN Xi9F onto a non-conductive surface. However, AAAN Xi9F is designed to work when
mounted on metal as well. There is a slight decrease in read/write range when compared to mounting on non-conductive
surfaces, but in most cases the read/write range will still be plenty for the application.

3.4 Frequency converters

Frequency converters used in electronic motors are a source of significant EMV noise. Make sure to stay away as far as
possible from those frequency converters when designing spots where ARE i2.0x SEMI to be used. Noise from frequency
converters significantly reduce read range of ARE i2.0x SEMI.
Manual ARE i2.0x SEMI release V2.docx