AS500 user manual
Contents
1. magnetic sensor B via the two threaded holes Cable layout should avoid damages due to cable strain or other machine parts If necessary use a drag chain or protective hose and provide for strain relief Zur Zugentlastung k nnen die mitgelieferten Kabelschellen eingesetzt werden Sensor must be aligned correctly with respect to the counting direction see fig 6 Signal B before A p gt cable outlet travel direction sensor Fig 6 Definition of counting direction mounting When mounting the magnetic sensor ensure thatthe gap between strip amp sensor andthe max admissable deviation are maintained over the total measuring length see fig 7 The max gap without cover strip is 2 0mm When using cover strip the gap is reduced by the thickness of cover strip including its adhesive tape Sensor must not touch the magnetic strip active side mm F Ve Gap between sensor and magnetic strip _ lt i1 lt 1 a T m C o Max deviation o Fig 8 Mounting of sensor AS500 MB Datum 28 06 99 Art Nr 79595 Z Nr 8668038 nd Stand 203 99 3 3 Mounting the translation module The device has been designed for mounting with screws The lateral holes in the flanges are for direct fixing with screws see fig 9 Power supply Output signals Status LED s KJ jam2. 2 0mm see fig 7 Cable squeezed interrupted cut by sharp edges Sensor s active side not mounted towards the magnetic strip see fig 8 e Sensor has not been aligned according to chapter 3 2 AS500 MB Datum 28 06 1999 Art Nr 79595 Z Nr 8668038 And Stand 203 99 m SIKD Sli KO Postanschrift Postal address GmbH Postfach 1106 DR ING G WANDRES D 79195Kirchzarten Werk Factory Weihermattenweg2 D 79256 Buchenbach Telefon Phone 07661 394 0 Telefax Fax 0 76 61 3 94 388 Internet www siko de 12 AS500 MB Datum 28 06 99 Art Nr 79595 Z Nr 8668038 And Stand 203 99
3. User Information AS500 mB Translation Module ENGLISH 1 Safety information In order to carry out installation correctly we strongly recommend this documentis read very carefully This will ensure your own safety and the operating reliability of the device Your device has been quality controlled te sted and is ready for use Please respect all warnings and information which are marked either directly on the device or in this document Warranty can only be claimed for components supplied by SIKO GmbH If the units are used together with other products the warranty for the complete system is invalid e Repairs should be carried out only at our works If any information is missing or unclear please contact the SIKO sales staff 2 Identification Magnetic strip identification by printing on the strip NNNN 5000 _ pole pitch 5mm accuracy 0 1mm serial number Translation module The particular type of unit and type number can be seen from the identification plate Additional information is given on connection and mounting Type num ber and the corresponding variations are indi cated in the delivery documentation e g AS500 0023 type number type of unit 3 Installation The unit should only be used according to the protection level provided Protect the system if necessary against environmental influences su
4. ch as sprayed water dust knocks extreme temperatures solvents 3 1 Mounting the magnetic strip The mounting surface measuring track must be flat Buckles or bumps will lead to measuring inaccuracies For applications which do not allow properly glueing of the magnetic strip it can be inserted into a profile rail accessory type PS thus forming a compact mounting unit Due to technical reasons it is necessary to extend the total length compared to the measu ring length with 25mm at both ends each Attention To guarantee optimal adhesion oil grease dust etc must be removed by using cleansing agents which evaporate without lea ving residues Suitable cleansing agents are eg ketones acetone or alcohols Messrs Loctite and 3M can both supply such cleansing liquid Make sure that the surface to be gluedis dry and apply the strip with maximum pressure Glueing should preferably be undertaken at tempera tures between 20 to 30 C andin dry atmosphere Advice When applying long pieces of magnetic strip do not immediately remove the complete protective foil but rather peel back a short part from the end sufficient to fix the strip Now align the strip As the protective strip is then peeled back and out press the tape firmly onto the mounting surface A wall paper roller wheel could be used to assist in applying pressure onto the magnetic strip when fixing it in position Mounting steps see fig 1 Clean mounting
5. ence switch should be lt 5mm Fig 12 Principle of calibration Attention The index signal is generated inde pendent from signal A and B 9 Joining magnetic strips together For some applications it may be necessary to extend the magnetic strip The magnetic strip can be cut and rejoined using standard tools AS500 MB Datum 28 06 99 Art Nr 79595 Z Nr 8668038 And Stand 203 99 But however carefully this is done the accuracy ofthe strip atthe join willbe impaired error of at least 0 1 0 2 mm The following tools accessories are requi red magnet magnifier magnetic foil or metal dust rule or suitable tool compass needle 2 NSNS Fig 13 Determination of the pole position Cutting the magnetic strip M S N S ass Fig 14 Determination of the pole position Joining the magnetic strip Steps If there is a cover strip this is to be removed first To determine the pole division either use metal dust a magnet magnifier or magnetic foil Ifnecessary use a compass needle to deter mine the location of the poles on the magnetic strip fig 13 Use a rule and a sharp knife to cut the magnetic strip at a right angle Then also cut the carrier strip accordingly Previous steps are to be repeated with the other part of strip Check polarity before joining the two parts Both ends must attract each other if nece
6. gnal sequence The zero reference signalis issued every 5mm irrespective of the resolution el een m le Fig 11 Output signals A and B with reference signal Ready signal The ready output allows the recognition of defec tive states by the follower controls The outputis activated active low whenever the sensor si gnals are disturbed Ready high initialized and undisturbed Ready low disturbed 7 Commissioning When mounted and connected correctly the translation module can be switched on Initizialisation of the AS500 is carried out auto matically as soon as the device is switched on The POWER LED on the device s top glows As soon as the magnetic sensor moves the A and B LEDs start flickering 8 Calibration The translation module AS500 is one compo nent of an incremental measuring system For absolute measuring the system must be adju sted to a defined reference point calibrated This can for example be achieved by linking the reference signal with the signal issued by a reference point source REF eg cam switch or proximity switch If the follower electronics are able to recognize signal edges the reference value can be adjusted with a repeat accuracy of 0 005 mm The active signal of the refe REF r
7. m Connection of the magnetic sensor casing screws Fig 9 Mounting connections 4 Electrical connection Magnetic sensor and translation module are supplied with ready made cable and sensor connection Any modification for example by a cable extension is not permitted Wiring must only be carried out with power off e Check all lines and connections before swit ching on the equipment Interference and distortion Allconnections are protected against the effects of interference The location should be selec ted to ensure that no capacitive or inductive interferences can affect the sensor or the connection lines Interference can be caused by motors switch gear cyclic controls and contactors Suitable wiring layout and choice of cable can minimise the effects of interference The following points should be observed Only screened cable should be used Wire cross section is to be at least 0 14 mm max 0 5 mm Wiring to the screen and ground OV must be secured to a good point Ensure that the connec tion of the screen and earth is made to a large surface area with a sound connection to minimi se impedance The sensor should be positioned well away from cables with interference if necessary a protective screen or metal housing must be provided The running of wiring parallel to the mains supply should be avoided e Contactor coils must be linked with spark suppression Power suppl
8. ssary use compass needle In case both ends have the same polarity shorten one end by a half pole division fig 14 Jointhe two ends closely together and add the cover strip 10 Maintenance magnetic strips We recommend cleaning the magnetic strip s surface from time to time with a soft rag This avoids dirt dust chips humidity sticking to the strip 11 Trouble shooting The translation module AS500 is only one com ponent of the magnetic strip length measuring system Error states can be caused by all components Therefore you should proceed very systematically during error search First check all supply voltages Are cables plugs or screwed connectors defective or loose Disconnectthe follower electronic and check whether the tranlsation module s output signals are available The LEDs mustlight up as soon as the sensor moves Check whether parameter programming is attuned to the follower electronics counting frequency resolution output circuit Below are some typical errors which may occur during installation and operation e Magnetic strip incorrectly mounted active surface must be mounted towards the sensor see chapter 3 1 e Use of foreign protective strip Must always be non magnetic Sensor incorrectly connected Tolerance forthe gap between magnetic sen sor and magnetic strip not observed over the total travel distance Sensor touches strip or gap is to big gt
9. surface 1 carefully Remove protective foil 2 from the adhesive MB side of the magnetic strip 3 accuracy 0 1 0 05 g pt pole pitch 5 Stick down the magnetic strip 4 strip width 10 i Clean surface of magnetic strip carefully AS500 MB Datum 28 06 1999 Art Nr 79595 Z Nr 8668038 And Stand 203 99 7 SIKD Remove protective foil 6 from adhesive tape on the cover strip 5 Fix cover strip both ends should slightly overlap Also fix cover strip s ends to avoid unin tentional peeling 0000 ad Fig 1 Mounting of the magnetic strip Attention Do not expose the system to magne tic fields Any direct contact of the magnetic strip with magnetic fields eg adhesive magnets or other permanent magnets is to be avoided Sensor movements during power loss are not captured by the follower electronics Mounting examples Mounting with chamfered ends fig 2 is not recommended unless the strip is installed in a safe and protected place without environmental influences In less protected mounting places the strip may peel There we recommend moun ting accord to fig 3 and 4 Mounting in a groove fig 5 best protects the magnetic strip The groove should be deep enough to totally embed the magnetic strip 3 2 Mounting the sensor Use two M3 screws to fix the magnetic sensor A via the 3 5 mm through holes Use two M2 5 screws to fix the
10. y is made via mains connection on rear of the device The correct supply voltage is indica ted in the delivery documentation 24 VDC 20 or 5 VDC 5 Connection of the translation module Output signals and voltage supply are connected to the 9 poles D Sub terminal strip see fig 9 Attention Fixing of the D Sub plug to the socket is to be made by using the screws on the plug This will guarantee a neat and effective connection Pin No Signal A Al GND B 0 U Ready OoOloINIoIAa A OJN AS500 MB Datum 28 06 1999 Art Nr 79595 Z Nr 8668038 nd Stand 203 99 9 SIKD 7 5 Parameters Before powering the AS500 the unit can be programmed Please proceed as follows e Loosen the 4 screws on the casing Open the casing e Carry out DIP switch setting according to fig 9 NO 0 05mm 0 025mm 0 0Iimm 0 005mm a N m Fig 9 Parameter setting position of the DIP switches Standard parameter setting Unless specified otherwise parameters are pre set as follows Resolution 0 005 mm 6 Output signals The magnetic length information collected by the magnetic sensor is converted by the trans lation module into incremental output signals Phase difference t The phase difference tis shown below a Fig 10 Phase difference t Si
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