AEG Identifikationssysteme AREK1-1 RFID Reader User Manual Installation AAN FK6 engl

AEG Identifikationssysteme GmbH RFID Reader Installation AAN FK6 engl

Contents

user manual ext antenna

Installation manual AAN FK6
--------------------------------------------------------------------------------2/8-------------------------------------------------------------------------------- 1 Introduction The antenna AAN FK6 is a highly sensitive transmission and reception antenna for the AEG ID reader fam-ily ARE K1. The transponder is inductively supplied with energy over a 124 kHz signal by the antenna and responses isochronical with a frequency half of the transmission frequency (62 kHz). The antenna is exactly adjusted to numerous parameters, in order to receive a large reading range with good interference suppression due to external interference sources. In order to obtain these positive fea-tures a prescribed installation is absolutely necessary. 1.1 Definition of coordinates For following specification is the following system of coordinates defined: XYYZ Figure 1.1: Definition of the coordinates
--------------------------------------------------------------------------------3/8-------------------------------------------------------------------------------- 2 Mounting of the antenna non-metallicmounting ground(a)(b)Nut M6Screw M6AntennaAAN FK6AntennaAAN FK6Screw M6 Figure 2.1: Mounting of the antenna at the front (a) and rear (b) The antenna can be fixed at a proper mounting support. The holding down bolts may be tightened maximal-ly with 2 [N/m]. metal Figure 2.2: False handling of the antenna Because of the functional principle it must be taken care that the antenna is not inductively short-circuited by the mounting construction. Especially the direct mounting on a frame or a plate of metal provoke such a short-circuit and can lead to a destruction of the antenna. When mounting on a concrete wall it is to notice that this wall may contain reinforcing iron in an unfavourable geometry. In this case only a power dissipa-tion occurs because of the distance of the iron-structure, but not a complete short-circuit. In this configura-tion the reading range is lower than specified and the current consumption is higher than normal. When operating an antenna in laboratory it must be paid attention that the antenna in operation must not be laid on another antenna. In such a case also an inductively short-circuit takes place which may lead to a destruction of the antenna. Two adjacent antennas should have a distance of at least 50 cm to each other.
--------------------------------------------------------------------------------4/8-------------------------------------------------------------------------------- 3 Metal free zone in immediate environment of the antenna It must be followed to the minimum distances shown in Figure 3.1 and Figure 3.2! 200 200570Reading directionmetal free zone Figure 3.1: Minimum distance of the antenna to structures of metal – drawing in plane x-z 290570metal free zone Figure 3.2: Minimum distance of the antenna to structures of metal – drawing in plane x-y
--------------------------------------------------------------------------------5/8-------------------------------------------------------------------------------- 4 Optimal orientation of the antenna to the moving direction of the transponder The antenna should be mounted as close as possible at the site of the transponder. As a rule a paralleI ori-entation of the antenna to the transponder is favourable in regard of the reading range. ID 200AAN FK6ID 200AAN FK6ID 200AAN FK6 Figure 4.1: Optimal orientation transponder - antenna The reading field is a complex three-dimensional function which is relevantly influenced by the orientation of the transponder. With parallel orientation (see Figure 4.1) and low interference the reading field in front of the antenna (shown in Figure 4.2) results. 5 10 15 20 25 30 35020151051015205AAAA Figure 4.2: Reading field above the longitudinal axis (AA) and transverse axis (AA)
--------------------------------------------------------------------------------6/8-------------------------------------------------------------------------------- Figure 4.3: Disadvantageous motion paths of the transponder over the antenna Because a transponder has to be long enough in the active reading area to achieve a reliable reading result. The maximum reading distance will be achieved only in stationary operation. The reading range is reduced with a transponder in motion. Therefore the transponder has to be passed closer at the antenna. 5 Electrical supply of the antenna The antenna is mounted perpendicular to the transfer direction of the keg's. It is important that the dis-tance between the antenna housing and the feed rollers is about 1 cm. The antenna fixture must not be made of metal. The electrical interferences measured with the Mipos in laboratory are between 35mV and 50mV. At the conveyor the electrical interferences are around 150mV under laboratory conditions. Mounting position as shown in Figure 5.4.1 for conveyors with chains or rollers
--------------------------------------------------------------------------------7/8-------------------------------------------------------------------------------- figure 5.4.1 orientation 0° figure 5.4.2 orientation 45° Figure 5.4.1 antenna under roller conveyors orientation 0° Figura 5.4.2 antenna under roller conveyors orientation 45° To get the best reading performance be sure to use at least 7 plastic rollers (without metal core) located above the antenna. If you use less than 7 plastic rollers you will get shorter reading distance. No metal can be present above or below the antenna (!) 6 Electrical connectors of the antenna The antenna is connected with the decoder by the antenna-cable. Very low signals are conducted in the ca-ble. Special attention should be paid at the cable routing that unnecessary external signals are not conduct-ed. That is why the antenna-cable should be laid separately, particularly not in cable tunnels. Optimal read-ing performance is achieved using the original AEG ID antenna-cable. This antenna-cable is delivered pre-manufactured at the side of the antenna and fits to the reading system regarding shielding and cable capac-ity. The standard cable length is 5 m. The cable may not be shortened! Special cables with length of 1m to 10m are available on enquiry. plastic rollplastic rollplastic rollplastic rollplastic rollplastic rollplastic rollmetal rollmetal rollAAN FK6plastic rollplastic rollmetal rollmetal rollplastic rollplastic rollplastic rollplastic rollplastic rollAAN FK6
--------------------------------------------------------------------------------8/8-------------------------------------------------------------------------------- 7 Revisions 19.12.01 Revision 00: Initial edition 05.16.08 Revision 01: Orientation 0° 02.08.10 Ausgabe 02: Format

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