Installation manual - SM Bown Electrical Ltd
Contents
1. 2320 RS 232 Protocol ELGO optional 2321 RS 232 Protocol ELGO Position amp Speed optional SSBO SSl Interface 25 Bit Binary code SSGO SSl Interface 25 Bit Gray code Options multiple nominations possible D9MO 9 pin D SUB Connector Option NEWLIFT FST1 D9M1 9 pin D SUB Connector Option NEWLIFT FST2 D9M2 9 pin D SUB Connector Option Masora Delta D9FO 9 pin D SUB Jack instead of open wires U unguided Without magnetic tape guiding plate on the Sensor bottom side V Sensor housing in sealed IP67 version Ordering example 1 LIMAX2 in standard version with 3 0 m cable und Canopen Interface 9 pin D SUB Connector incl counterpart unguided without magnetic tape guiding plate Sensor housing in IP67 version LIMAX2 00 030 1000 CAOO DOMO U V 20 rece 11 1 Type designation of magnetic tape Accessories Designation AB20 Absolute coded magnetic tape Pole division ____ Basic pole division in 100um Resolution 80 4mm Pole division Tape width Tape width in mm 10 10mm Number of tracks Number of magnetic tracks 1 Single track system Tape construction R Standard Magnetic tape bonded on permeable steel tape As unguided version at horizontal operating A Magnetic tape on cover band without further accessories Options If no options are needed ask this decade in the order to omit D Without sticky tape a2. ELGO ELECTRIC Magnetic Absolute Linear Encoder positioning solution for elevator cabs Installation manual Resolution 1 mm Up to 4 mm mounting distance to the magnetic tape Absolute measuring distance up to 260 meter Available as guided or unguided version No calibration or reference run necessary Direct measurement and installation at the elevator cabin No yo yo effect Resistant against dirt IP50 Standard Easy to install Different interfaces available Power supply 10 30 VDC The magnetic tape can be hung vertically spring loaded or mounted with a weight Wear free touchless and low noise measurement principle ELGO Electric GmbH Measure Control Position Carl Benz StraBe 1 D 78239 Rielasingen phone 0049 7731 93 39 0 Fax 2 88 03 LIMAX2 000 E_36 06 doc Internet www elgo de Mail info elgo de Dok Nr 799000254 1 General 2 Safety instructions 2 1 Fault clearance 3 Assembly of LIMAX2 4 Operating state LED messages 5 Dimensions 6 Interfaces and Protocols 6 1 CANopen Interface on demand 6 2 SSI Interface standard RS 232 RS 422 Interface option 1 6 3 6 3 1 RS 422 version 1 4 ADRESSABLE option A22 7 Mounting possibilities 8 Oscillation Damper 9 Technical Specifications 10 Magnetic tape AB20 XX 10 1 Tape construction R D two components tape 10 2 Tape construction A two components tape 10 3 Resistance against
3. touchless and low noise measurement principle very resistant against dirt magnetic tape guiding plate from sliding special plastic The system can be assembled horizontally or vertically In the guided standard version the guiding plate guarantees the correct distance between the sensor and the magnetic tape While with the unguided version of the LIMAX2 option U the correct mounting distance 0 1 4 0 mm along the whole measuring section must be en sured by the installation For the mounting various accessories are available which simplifies the installation they also complement meaningful the linear encoder ELGO ELECTRIC 2 Safety instructions Please note Before first start up read this installation manual carefully and observe absolutely the installation instructions The measuring system is only dedicated for length measurements The type label is intended for exact identification of the measuring system and is situated on the sensor housing It informs about the exact type designation the delivery date and the production number When contacting the company ELGO Electric GmbH please use these terms Attention ELGO Electric GmbH is not liable for possible damages to machines or to persons which can result from defective material at the measuring system and the connected units The machine manufacturer is responsible for taking and realizing the necessary safety precautions 2 1 Fault clearance 4
4. Electric does not assume any liability for pos sible errors or mistakes The guarantee period is one calendar year from the date of delivery and includes the delivered unit with all components ELGO Electric GmbH will at its option replace or repair without charge defects at the unit or the included parts verifiable caused by faulty manufacturing and or ma terial in spite of proper handling and compliance to the instruction manual Damages verifiably not caused by ELGO Electric GmbH and due to improper handling are ex cluded from any guarantee e g by applying faulty voltage diffusion of liquid into the interior of the engine using force scratching the surface chemical influences etc Subject to change ELGO Electric GmbH 2006 ELGO Electric GmbH Measure Control Position Carl Benz StraBe 1 D 78239 Rielasingen phone 0049 7731 93 39 0 Fax 2 88 03 Internet www elgo de Mail info elgo de 22
5. Plate for Magnetic Tape Distance piece is i Weight for Slabilizalay For a free hanging assembly in the eleva tor shaft the guided sensor variant stan dard is used For this a magnetic tape in construction R standard is hung up par allel to the cabin at the shaft ceiling and provided at the lower side with a weight for stabilization Possibly lateral deviations along the measuring distance can be com pensated by a guide plate with optional balance guidance s at the bottom side of the sensor housing The sensor passes the magnetic tape nearly contact free and in the correct mounting distance In order to prevent an oscillating motion of the stabili zation weight a oscillation damper should be attached above the weight Unguided Installation on a steel girder rooney an Absolute coded tape connected onthe ort steelginder by its own magnetizition m ene bowed gap nn oa a Touchless scanning ai Unguided version In the case of a mounting directly at a steel girder the unguided variant U is used which differs only by the re nouncement of the guide plate from the standard system Here the sensor is fastened to the cab and passes the magnetic tape really contact free pref erably a tape in construction A How ever it must be ensured with this ver sion that the allowed mounting distance is not exceeded along the whole meas uring distance Owing to the o
6. chemical influences 10 4 Technical specifications magnetic tape 10 5 Sticking and cutting 11 Type designation LIMAX2 11 1 Type designation of magnetic tape Accessories 12 Liability exclusion Guarantee nrc 10 10 13 14 15 16 16 17 18 18 19 20 21 22 ELGO ELECTRIC 1 General LIMAX2 bases on the already successfully in elevator applications used LIMAX Absolute Linear Encoder and it is possible to use the sensor with a mounting distance from 0 1mm up to 4 0mm to the magnetic tape with a resolution of 1mm other resolutions on demand The system is available as guided or unguided As a result of an increased possible mounting distance of up to 4 mm a further advantage arises in the case of the guided version During the measuring movement a substantially smaller noise of magnetic tape in combination with the guide plate develops With the LIMAX2 measuring lengths up to 260 meters can be processed The measured absolute data position are transmitted to a super ordinate system e g Control SPS or PC via Interface There they can be processed then The absolute linear encoder offers some crucial advantages no referencing necessary no data leakage after power failure Space saving unit and simply installation direct measurement accurate positioning no yo yo effect measuring distance up to 260m imm standard resolution others on demand operating speed up to 16 m s Wear free
7. failed for some reason LIMAX2 gives a negative answer with an concerning error code from LIMAX2 STX ERR ETX 02h FFh FFh xxh 03h ERR Error Code 04h OAh error codes are listed at the next page 11 nrc Error Code meanings of an addressable LIMAX2 Code 04h O5h 06h 07h O8h 09h OAh Meaning Wrong succession of bytes sent to LIMAX2 for example if 4 Byte after STX is no ETX or the Byte after STX is not 0x04 0x05 or 0x06 Receive Error Error concerning the interface for example if there has been sent a mes sage with a wrong baud rate etc Invalid LIMAX2 address appears after trying to assign an address smaller OBh or bigger 7Fh to LIMAX2 LIMAX2 has forgotten its address check of internal redundant stored address of LIMAX2 is failed This message is sent at power up immediately if an error in reading EEPROM is detected or if the internal redundant stored address is not fit Internal EEPROM storage error Error in calculating the position no tape tape damaged or to big distance Check Sum Error Check sum of a message sent to LIMAX2 is wrong Connection to a RS422 Master 3 Data Out Enable Data In Liata In TX Enable Data OUT 3 Data In TX Enable Data OUT 12 7 Mounting possibilities ted The magnetic tape can be installed guided or unguided Guided hung vertically Fixation of the Magnetic Tape Absolute coded Magnetic Tape Guide
8. Operating temperatur Stock temperatur Humidity Not condensing max 80 Operating height max 2000 m above sea level IP 50 standard version Protection class 5 67 option V sealed Housing Aluminium Al Mg Si 0 5 Dimensions Cable length Depends on bit rate and equipped interface 15 nrc 10 Magnetic tape AB20 XX Coding and data of the magnetic tape one track system iS 8 MN NM N S IN SN MN S Basic data Width of the magnetic tape 10 mm Thickness of the magnetic tape ca 1 5 mm 10 1 Tape construction R D two components tape In the standard case the magnetic tape is delivered as described here The assembly takes place here via gluing on the respective mounting surface it can also be assembled free hanging in the elevator shaft A Magnetized plastic tape magnetic tape Scanning side Magnetic leading steel band Conclusion volume Thickness A B 1 5mm Available lengths See technical specifications The magnetic tape consists of 2 components A The magnetized highly flexible plastic tape connected on the lower side with B Magnetic conductable and flexible stainless steel tape It protects the plastic tape from me chanical damages and is a magnetic short circuit at the same time This increases signifi cantly the functional security under extreme magnetic influences Both parts A and B are al ready factory
9. The shielding of the signal cable should be connected only on one side with the further connected unit e g PC or PLC The signal output cable must principally be wired separately from heavy duty current wires and keep a distance of at least 0 5 m to inductive and capacitive interference sources as contactors relays en gines switch power packs clocked controllers etc If there arise interferences in spite of observing all above described points proceed as follows Add RC elements over contactor reels of AC contactors e g 0 1 uF 100 Q9 Add recovery diodes over DC inductances Add RC elements over each engine phase and over the engine brake in the terminal box of the engine Do not connect PE potential earth to GND Ground Connect a system filter at the external power supply 3 Assembly of LIMAX2 Active sensor area at the unguided Sensor option U The active sensor area at the scanning side determines in the middle of the sensor and reaches along the whole case When assembling therefore the following rule applies Sensor center mag tape center assembly tolerance 1 mm Attention Scanning side gt maaqnetic tape nrc Three integrated Assembly grooves at the sensor housing makes possible a very simple and self describing assembly M6 hexagonal screw nuts according to DIN 933 or M6 square screw nuts according to DIN 562 can be inserted here i
10. aterials to stick The provided sticky tapes stick well on clean dry and plain surfaces Typi cal solvent for cleaning surfaces are a 50 50 mixed isopropyl alcohol water mixture or hep tane Important Please observe carefully the caution hints of the producer when using the solvent The surfaces of materials as copper brass etc should be sealed to avoid an oxidation Proof The stability of the adhesion is directly depending on the contact which the adhesive develops to the surfaces stuck together A high proof results in a good surface contact Stick ing temperature The optimal sticking temperature is between 21 C and 38 C Avoid colder sticking surfaces than 10 C because in this case the adhesive becomes to hard and perhaps a sufficient immediate adhesion is hardly to achieve After proper sticking the stability of the connection is ensured also when the temperature is below zero The final tackiness of a sticking is from experience reached after approximately 72 hours at 21 C 19 rece 11 Type designation LIMAX2 LIMAX2 00 030 4 1000 4 xxxx 00000 Type Absolute encoder for elevator tasks Version 00 Standard 01 1 special version Signal cable in XXX Decimeter 030 3 0 m gt Standard Length others on request Resolution in m 1000 1000 um bzw 1 mm 0500 500 um 0250 250 um 0125 125 um Interface CAOO Standard CANopen on demand 4220 RS 422 optional
11. bonded by ELGO Alternatively the single components can be ordered sepa rately see type designation 16 rece 10 2 Tape construction A two components tape Assembly at a steel girder by the own magnetic attraction or by gluing This devi ating variant is delivered without the magnetic conductive steel band Therefore the tape must be installed on a magnetic conductive surface in order to increase the magnetic field strength The magnetic tape can be stuck together here or alternatively fastened by its own magnetization e g on a steel girder Cover band for protection unnecessary for measurement Scanning side Magnetized plastic band magnetic tape Mounting surface e g steel girder Thickness A C ca 1 5 mm Available lengths See technical specifications These deviant version see the type designation consists of 2 components A The magnetized highly flexible plastic tape C To keep the flexibility for transport and installation the second part a stainless magnetic permeable steel tape is delivered separately It serves for mechanical protection of the plas tic tape is already equipped with a sticky tape and must be bonded on the magnetic plastic tape after installation lt Storage reference please note In order to avoid ten sions in the magnetic tape it should be stored in stretched or rolled up conditions with the magnetized plastic tape resp scanning side outwards see
12. entifier is given Bit rate 250 KB s CAN Identifier 6 Byte telegram 1A3 16 Identifier First 4 Bytes position in mm resolution 1 mm Next 2 Bytes speed in mm s Because the system resolution is only 1mm and a average value formation is made the smallest Speed increment is 14 hexadecimal With this increments the measured speed increases MSB LSB MSB xxh xxh xxh yyh yyh ABS Position Speed Data protocol LSB xxh Connections Open wires standard color sf function shield PRE 9 poliger D SUB Stecker options DM oder DF PinNr function _ please connect the shield only at the machine side 6 2 SSI Interface standard Principle of the function If the clock is not interrupted for the time Tm T 2 output of fur ther 25 periods the shift register clocks once again the same data value error recognition in the evaluation Some encoders contain a Power Failure Bit PFB Attention With the LIMAX2 the PFB is alwas LOW Data protocol readout the data with 25 clocks SSI Takt 24 Datenbits 3Bytes PFB Power Failure Bit T Periodendauer des Taktsignals Tm Monoflopzeit gt 10us Connections Open wires standard function white brown violet gre 9 pin FST1 D9MO FST2 D9M1 Delta D9M2 Pin Nr function function_ _ function 1 Data __ OV GND___ VCC _ __ 2 Cock Clock fe 3 b COV GND fe _ y 4 24VDC_ _ Daa fe
13. est 7 i address of the requested LIMAX2 OBh 7Fh ABS position Bit O has the value 10um position values are always lower than FFFFOOh A LIMAX2 address request Attach in each case only one LIMAX2 e g over a RS422 RS232 converter to the serial interface COM port of a PC to LIMAX2 answer STX Byte ETX STX ETX 02h O5h O5h check O3h 02h FFh FFh xxh 03h O5h characterizes a message as address request i LIMAX2 address FFh FFh does not occur immediately after STX with position inquiries as answer In this case i 0Bh lt i lt 7Fh is the answer of the address request Allocation of a LIMAX2 address Attach in each case only one LIMAX2 e g over a RS422 RS232 converter to the serial interface COM port of a PC to LIMAX2 answer STX Byte ETX STX i ETX 02h 06h check 03h 02h FFh FFh 80h 03h 06h characterizes a message as address allocation i the new LIMAX2 address Important At the answer you get the new address 80h The addresses 80h FFh as well as 00h OAh are FORBIDDEN If you try to assign a address smaller than eight LIMAX2 gives you a negative answer and keeps its former address Important Before you send a new message to the LIMAX2 wait for the answer first After allocating a new address the LIMAX2 answers in max 0 5s and in a few milliseconds in other cases After this time it is not expected to get an answer transmission error Negative Answer If one of the described operations
14. n order to fasten the system from the desired side to the desired place Assembly groove Active Sensor area Assembly groove Assembly groove When sticking the magnetic tape pay attention to the marker arrows on the magnetic tape and the sensor head A faulty installation delivers incorrect measurement values The marker arrows at senor and tape point to the positive counting direction ELGO ELECTRIC 4 Operating state LED messages The front located LED s serve for the monitoring of operating conditions With startup it is to attend that the green LED shines as this is monitoring the internal supply voltages 17 20mm 33 40mm 22 00mm 19 00mm 16 80mm 11 60mm g O OO RS RS RED gt ERROR ON status error system not ready OFF status OK system is ready YELLOW gt Interface state of interface Flashes during the data communication GREEN gt Supply Voltage ON system ready to operate OFF system switched off nrc 5 Dimensions Rear Cover Topview 55mm 55mm h 40mm Attention The grey parts of the drawing and the grey dimensions apply to the guided version standard of the LIMAX2 244mm 236mm Front Cover 40mm nrc 6 Interfaces and Protocols 6 1 CANopen Interface on demand The measuring system is equipped optionally with an CAN interface after CANopen standard The following Id
15. nd cover band free hanging assembly in the shaft Number of bits Bit number of the absolute code 15 15 Bit Code Please indicate the desired length up to 1000 meters 001 1m up to 000 1000 m Magnetic tape length Measuring distance 0 25 m Further accessories Pole foil Article Nr 511000220 Determination of pole length resp number of tracks on already installed tapes Further accessories A special pole foil app 4 cm x 4 cm is available as and is useful to make the tape magnetization visible The pole length or the number of absolute tracks can be deter mined in order to replace an already installed or unknown tape correctly Single lane coded magnetic tape 21 nrc 12 Liability exclusion Guarantee We have checked the contents of this instruction manual carefully to the best of our knowl edge and belief for conformity with the described hardware and software Nevertheless errors mistakes or deviations can not be excluded therefore we do not guarantee complete confor mity Necessary corrections will be included in the subsequent editions We appreciate your ideas and improvement suggestions very much Reprint duplication and translation even in extracts are only allowed with a written authori zation by the company ELGO Electric GmbH We constantly strive for improving our products therefore we keep all rights reserved for any technical modifications without any notice ELGO
16. o 5 OV GND_ __ OV GND_ _ Data 6 Data 24VDC_ Data 8 __ Data ____ Clock 9 PES CSCC SCV GND please connect the shield only at the machine side ELGO ELECTRIC nrc 6 3 RS 232 RS 422 Interface option If the measuring system is equipped with an RS232 or RS422 interface the data communica tion has the following format 9600 bauds 1 Start bit 8 data bits 1 stop bit no parity Data protocol The measured absolute position will be represented with a resolution of 1mm in the three ABS position data bytes Version 2321 4221 STX MSB LSB MSB LSB ETX 02h xxh xxh xxh yyh yyh 03h 00h ODh ABS position speed Version 2320 4220 STX MSB LSB ETX 02h xxh xxh xxh 03h 00h ODh ABS position standard STX starts a message ETX ends a message Connections yellow S a a please connect the shield only at the machine side 6 3 1 RS 422 version 1 4 ADRESSABLE option A22 Principle format of a message to LIMAX2 answer STX Byte Byte Byte ETX STX Byte Byte Byte Btye 02h 1 2 check 03h 02h 1 2 3 4 STX starts a message ETX ends a message Check Byte contains the arithmetic checksum of STX byte1 and byte2 10 nrc Position request of a LIMAX2 with the address i to LIMAX2 answer STX Byte ETX STX MSB LSB Adr 02h 04h check 03h 02h xxh xxh xxh i jKxey saaal 04h characterizes a message as position requ
17. picture 17 rece 10 3 Resistance against chemical influences Chemicals showing no or only small effects Formic acid Linseed oil Iso octane Cotton seed oil Lactic acid Mineral oil Formaldehyde 40 Chemicals showing small to medium effects Acetone Kerosene Pure Acetic acid Isopropyl ether Chemicals showing strong effects Benzene Nitric acid Turpentine Lacquer solvent Xylene Nitric acid red vitriolic Hydrochloric acid Toluene 37 93 C Tetrahydrofuran Tetrachloride Carbon Trichloroethylene 10 4 Technical specifications magnetic tape 0 70 C 220 a5 Gere 40 2 852 C max 2000 m above sea level Humidity max 80 not condensing a l AL L x QX A L Messl nge in Meter Relative linear extension AL o relative change of temperatur in K based on 20 C room temperatur Coefficient of extension 16x 10 1 K minimal 150 mm Protection class IP67 Available Width 10 mm 0 2 mm 1 5 mm 0 1 mm Construction A max possible length Up to 600 m as roll ware longer on demand Pole length 8 mm Number of absolute tracks 1 18 rece 10 5 Sticking and cutting Attention When sticking the magnetic tape pay attention to the marker arrows on the magnetic tape and on the sensor head A faulty installation delivers incorrect val ues An already stuck magnetic tape is ruined after removing and can t be used again Observe also
18. the counting direction of the measuring system The sticking procedure Preferably the magnetic tape should be stuck into a nut or aligned to an edge Tape construction R D standard 1 The magnetic tape is already factory bonded with the conclusion tape On the carrier side conclusion tape already the necessary sticky tape is fixed or is attached sepa rately 2 Now the magnetic tape is adjusted and glued on then Most simply it is to be stick on the magnetic tape in two steps At first remove the adhesive film up to the half length and stick it Then stick the rest length 3 Afterwards the cover band must be bounded with the separately sticky tape if not al ready attached It doesn t matter on which side of the cover band the sticky tape is fixed The cover band must be stuck then on the magnetized plastic tape magnetic tape The cover band serves for the protection of the magnetic tape If a mechanical damage of the magnetized plastic tape can be excluded the installation can be done without cover band see Type designation gt Options Tape construction A In case of a vertical installation e g on a steel girder no sticking is necessary due to the fact that the magnetic rubber tape can be fastened by its own magneti zation The steel girder quasi replaces the conclusion tape The cover band must be fastened as described under 3 see above Processing hint for the sticking of magnetic tapes M
19. wn mag netization the tape can be fastened without any mounting parts or sticky tape directly at the steel girder 13 ete 8 Oscillation Damper If the magnetic tape should be assembled free hanging it recommends to stretch this at the lower surface with a weight from 5 kg In order to avoid that there oscillations develop and the magnetic tape together with the weight begins to oscillate there have to be a oscillation damper above the weight The following picture demonstrates the mounting of such an appli cation Oscillation Damper Magnetic tape i fe N k r gt a eh A Th r I i 2 x Te W Kr r A 4 A r h L ti T P i RI r 1 ee i r ii gt i t L k D N eP y i p f K t 7 SR 1 F s i sra a ji i wh K n Pty 1 Se x i ar i tee i ol ee ey N l wh q r a 4 om AL DAS ee a ria eH F al Pod ong h aj S zl 7 gt eight for stabilization _ gt Biren to fare TA ae j 5 Kg 1 pater eee i i U a Mea 5 ys Pha Aila e w TUHY ia K p ta A 1 b h try J i rw B h 4 l A fe 3 i 14 ELGO ELECTRIC 9 Technical Specifications Power supply voltage Current consumption Signal levels Repeat accuracy resolution Operating speed Measuring length max 4 0 mm on demand larger distances up to 10 mm are possible gap sensor tape Therefore other tape pole lengths and a bigger housing design is necessary Working temperatur
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