MAN SMA1 E 2.3
Contents
1. single slave network not on a single master multi slave network CLOCK and DATA signals level are according to the EIA standard RS 422 8 1 XML file The product is supplied with XML file idbiss4C69 xml see enclosed support or www lika biz gt PRODUCTS gt LINECOD gt SMA1 Install XML file on BiSS master device 8 2 Communication The BiSS Gmode protocol uses two types of data transmission protocols e Single Cycle Data SCD is the primary data transmission protocol It s used to send process data from the slave to the master e Control Data CD transmission of a single bit following the SCD data It is wed to read or write data into the registers of the slave MAN SMA1 E 2 3 doc PH SYSTEMS www phsystems be SMA1 8 3 Single Cycle Data SCD 32 bits is composed by position value 1 error bit nE 1 warning bit nW and CRC checking 6 bits SCD structure bits 31 8 7 6 5 0 CRC Position 24 bits Process data transmitted from slave to master The transmission starts with MSB most significant bit and ends with LSB less significant bit bit 31 28 27 value 0000 MSB To see position value in mm multiply the data value received for the resolution see 4Dhex register Be Ww Error 1 bit Communicates an error of the slave nE 1 correct status no error 0 error status tape not read Check gap between sensor and tape planarity and p2. al The new setting will be active immediately after transmission Use the function Save parameters set 01 register 48 to store the new value Default 20h 4D Absolute resolution rw Contains the resolution of absolute sensor 64hex Res 0 1mm max position 00 FF FFh 32hex Res 0 05mm max position 01 FF FFh OAhex Res 0 01mm max position 07 FF FFh O5hex Res 0 005mm max position OF FF FFh The new setting will be active immediately after transmission Use the function Save parameters set 01 register 48 to store the new value After the modification of reg 4D Preset and Offset values have to be updated according to the new resolution Default O5h www lika it www lika biz sales phsystems be lixa 51 53 Preset Offset rw This function has to be enabled by setting reg 49 bit 2 0 Setting of Preset or Offset register can be carried out only when the sensor is not moving Preset any desired position value can be set e g 0 zero setting Offset adds an offset to actual position Position actual position Offset Preset Offset structure SMA1 Parameter Min 7 5 Application note Device communication characteristics Clock Frequency Sensor Mode 350KHz Clock Frequency Register Mode 50KHz 250KHz Timeout Sensor Mode Timeout Register mode 15 5us 17 506 Use the function Save and activate Preset Offset set 02 register 48 to store
3. al drawing these conditions cannot be avoided provide a wiper or 11 Maintenance pressurized air 12 Troubleshooting MAN SMA1 E 2 3 doc 1 www lika it www lika biz PH SYSTEMS www phsystems be sales phsystems be lika o o o oY 2 Identification The device can be identified by the label s data ordering code serial number This information is listed in the delivery document For technical features of the product refer to the technical catalogue 3 Mounting instructions 3 1 Magnetic tape Install sensor and magnetic tape according to the above figure The arrow shows standard counting direction The system doesn t work if mounted incorrectly TE a 3 2 Sensor mounting LIKA MTA fig 6 Sensor can be fixed by means of two M4 screws over the buttonholes Make sure that the gap between sensor and tape is in respect with fig 6 along the total measuring length Avoid contact between the parts You can check planarity and parallelism between sensor and magnetic tape using a feeler gauge The allowed gap D is 0 1 mm 0 3 mm 0 004 0 012 Do not use the cover strip it would cause excessive gap between sensor and tape surface 4 Position errors diagnostics In case of bad alignment between of the sensor on the tape the following errors may occur during power on or operation e during power on LED on invalid data could be transmitted until the sensor is correct
4. and activate the new value The max allowed Preset values are depending on the resolution resolution 0 1 gt max preset 00 FF FFh 16bit resolution 0 05 gt max preset 01 FF FFh 17bit resolution 0 01 gt max preset 07 FF FFh 19bit resolution 0 005 max preset OF FF FFh 20bit Default OOh 55 Device type ro Describes the type of device Default 06h linear encoder BiSS SIN COS 58 SIN COS resolution ro Describes the period of sin cos signal Default 01h resolution 1mm 78 7D Device ID ro These registers contain the Device ID 7 6 Examples All values are hexadecimal Set configuration register DATA Tx O6h set preset Binary output code inverted counting direction DATA Tx ADR write register 49 O o Set Preset Preset 01 86 AOh DATA Tx write register a f e save and active 48 02 Preset xx software version 7E 7F Manufacturer ID These registers contain the Manufacturer ID Li Lika Electronic MAN SMA1 E 2 3 doc PH SYSTEMS www phsystems be www lika it www lika biz sales phsystems be lixa 8 BiSS C mode interface SMA1 17 standard SMA1 is a slave device according to BiSS mode interface and Standard encoder profile Refer to the official BiSS website for all information not listed in this manual www biss interface org The sensor works in point to point configuration and has to be installed on a single master
5. arallelism of the system Warning 1 bit Not used nW 1 CRC 6 bits Correct transmission control inverted output Polynomial X X 1 binary 1000011 Logic circuit Input Data starts from MSB www lika it www lika biz sales phsystems be lixa 8 4 Control Data CD See official BiSS documents for complete CD structure Protocol description C mode Main control data is described in this chapter Register address 7 bits Specifies the register to read or write RW 2 bits RW 01 write register RW 10 read register DATA 8 bit Write register value to write into the register transmitted from master to slave Read register value read from the register transmission from slave to master Data bit structure Lae k z fo ee COO A a HN te PIE CRC 4 bits Correct transmission control inverted output Polynomial X X 1 binary 10011 Logic circuit Input Data starts from MSB SMA1 8 5 Used registers 57 53 All registers in this chapter are listed according to the following outline Address Function name access Description of the function and default value Address register address in hexadecimal values Access ro read only rw read and write wo write only Default parameter values are written in bold 42 43 Profile ID ro These registers contain the identification code of the used profile See Standard encoder profil
6. e data format Variant 0 24 44 47 Serial number ro These registers contain the serial number hex value of the device reg 44 year of production reg 45 week of production reg 46 47 progressive serial number MAN SMA1 E 2 3 doc www lika it www lika biz PH SYSTEMS www phsystems be sales phsystems be lixa 48 Command wo Value Function 00 Normal operation Save parameters on EEPROM Save and activate Preset Offset Load and save default parameters This register will set back to 00 automatically Wait min 30ms EPROM writing time before using the next function 49 Configuration rw oO Notused S 2 Enable preset offset Enable Disable 3 Niwed sd 4 Notused sd 6 Counting direction Standard Inverted 7 Nausi J related to absolute position not to sin cos signal The new setting will be active immediately after transmission Use the function Save parameters set 01 register 48 to store the new value Default 20h 4D Absolute resolution rw Contains the resolution of absolute sensor 64hex Res 0 1mm max position 00 FF FFh 32hex Res 0 05mm max position 01 FF FFh OAhex Res 0 01mm max position 07 FF FFh O5hex Res 0 005mm max position OF FF FFh The new setting will be active immediately after transmission Use the function Save parameters set 01 register 48 to store the new value Aft
7. er the modification of reg 4D Preset and Offset values have to be updated according to the new resolution Default O5h MAN SMA1 E 2 3 doc PH SYSTEMS www phsystems be SMA1 51 53 Preset Offset rw This function has to be enabled by setting reg 49 bit 2 0 Setting of Preset or Offset register can be carried out only when the sensor is not moving Preset any desired position value can be set e g 0 zero setting Offset adds an offset to actual position Position actual position Offset Preset Offset structure Use the function Save and activate Preset Offset set 02 register 48 to store and activate the new value The max allowed Preset values are depending on the resolution resolution 0 1 gt max preset 00 FF FFh 16bit resolution 0 05 gt max preset 01 FF FFh 17bit resolution 0 01 gt max preset 07 FF FFh 19bit resolution 0 005 max preset OF FF FFh 20bit Default OOh 55 Device type ro Describes the type of device Default 06h linear encoder BiSS SIN COS 58 SIN COS resolution ro Describes the period of sin cos signal Default O1h resolution 1mm 78 7D Device ID ro These registers contain the Device ID Reg 78 79 7A 7B 7c 7D ras s mM a 1 xx software version 7E 7F Manufacturer ID These registers contain the Manufacturer ID Li Lika Electronic www lika it www lika biz sales phsystems be
8. lixa SMAI 8 6 Application note Data transmission Clock Frequency min 200KHz max 10MHz BISS Timeout auto adaptation to clock max 16us Internal position update frequency 8 7 Examples All values are hexadecimal Set configuration register DATA Tx O6h set preset Binary output code inverted counting direction ADR DATA Tx write register 49 6o Set Preset Preset 01 86 AOh DATA Tx MAN SMA1 E 2 3 doc 10 www lika it www lika biz PH SYSTEMS www phsystems be sales phsystems be lixa SMAI 9 1Vpp sine cosine output signals 10 Dimensional drawing The frequency of output signals is proportional to the displacement speed of the sensor Sensor and tape A and B signals standard counting direction E d r TE EL 90 el 360 el 0 21 a Ss o o 1 I 9 uo JH im B P KS NSXNG J __ Magnetic tape AN fo Mi LALLA A ad B oe N N Led Plejer i i g F g it li li P is the electrical period length id a P 1mm 9 1 Output signals voltage level 11 Maintenance The voltage level refers to the difference between The magnetic measurement system doesn t need normal and inverted signal differential any particular maintenance but as with all precision devices it must be handled with care From time to Recommended input circuit time we recommend the following operations Sensor Input circuit e check the gap between sen
9. lixa SMAI User manual 1 Safety summary SMAI e observe the professional safety and accident prevention regulations applicable to your country during device Description installation and operation p This manual describes the products of SMA1 series e installation has to be carried out by qualified personnel The purpose of these sensors is to measure linear 7 eee Ui SUM ele a a parts displacements on industrial machines and e the device must be used only for the purpose appropriate automation systems The measurement system to its design includes a magnetic tape and a magnetic sensor pign current voltage and rotating parts can cause serious The tape is magnetized with magnetic north south a e nun i poles The poles are coded thus the magnetic tape is Electrical safety e switch OFF the voltage before connecting the device absolute As the sensor is moved along the magnetic ae e connect according to the chapter Electrical connections tape it detects the displacement and produces an e according to the 89 336 CEE norm on absolute SSI output or BiSS output signal B mode electromagnetic compatibility following or C mode and an additional 1Vpp sin cosine signal precautions must be taken for speed feedback before handling and installing discharge electrical charge The sensor has to be matched with MTA1 magnetic from your body and tools which may come in touch with the device tape power supply m
10. ly aligned LED off e during operation last valid position is freezed until the next valid position on the tape is detected 4 1 Diagnostic LED When lit the LED indicates an incorrect alignment of the sensor to the tape like e gap between sensor and tape out of tolerance see fig 6 incorrect installation of sensor e sensor overlaps the tape With BiSS interface LED status is transmitted on nE bit Note LED off confirms correct detection of absolute position but not correct detection of sine cosine signals MAN SMA1 E 2 3 doc www lika it www lika biz PH SYSTEMS www phsystems be sales phsystems be es lixa 5 Electrical connections Connections for standard SMA1 for SMA1 S188 for SMA1 S682 10Vde 30Vde 5Vde 5Vde Specifications of the cable T12 cable TKD 4444 Twisted pair 4 x 2 x 0 14mm 4 x 0 25mm Screening braided Outside 6 1 mm 0 24 Resistance according to DIN VDE 0295 class 6 according to IEC MAN SMA1 E 2 3 doc PH SYSTEMS www phsystems be SMA1 6 SSI interface SMA1 BA 5 SMA1 GA 5 6 1 LSB right aligned protocol The type of transmission protocol is right aligned with a length of 25 bits The transmission starts with MSB most significant bit and ends with LSB less significant bit The device uses 20 bits for the position unused bits are set to O zero The output code of the sensor can be GRAY or BINARY see
11. nomial X X 1 binary 1000011 Logic circuit Input Data starts from MSB www lika it www lika biz PH SYSTEMS www phsystems be sales phsystems be e lixa 7 4 Used registers 9 1D 51 5 a 78 7D Manufacturer ID All registers in this chapter are listed according to the following outline 4 4 5 5 ey ee Preset Offset E n eD Address Function name access Description of the function and default value Address register address in hexadecimal values Access ro read only rw read and write wo write only Default parameter values are written in bold 42 43 Profile ID ro These registers contain the identification code of the used profile See Standard encoder profile data format Variant 0 24 44 47 Serial number ro These registers contain the serial number hex value of the device reg 44 year of production reg 45 week of production reg 46 47 progressive serial number MAN SMA1 E 2 3 doc PH SYSTEMS www phsystems be SMA1 48 Command wo Value Function 00 Normal operation Save parameters on EEPROM Save and activate Preset Offset Load and save default parameters This register will set back to 00 automatically Wait min 30ms EPROM writing time before using the next function 49 Configuration rw G Enable Neti A EE Counting direction Pp related to absolute position not to sin cos sign
12. not present at some positions e The gap between sensor and tape is not observed along the total measurement length see chap 4 or the sensor is not mounted correcty to the tape see chap 3 LED is lighted e The connection cable runs near to high voltage cables or the shield is not connected correctly e The frequency of your clock is set too high or too low and the sensor cannot synchronize correctly see chap 6 e A section of the magnetic tape has been damage mechanically or magnetically along the measuring length e The measuring error is caused by torsion of the l Ka machine structure Check parallelism and EEEE symmetry of machine movement Lika Electronic Via S Lorenzo 25 36010 Carr VI Italy Tel 39 0445 382814 Fax 39 0445 382797 Italy eMail info lika it www lika it World eMail info lika biz www lika biz MAN SMA1 E 2 3 doc 12 www lika it www lika biz PH SYSTEMS www phsystems be sales phsystems be
13. ordering code The measuring step is equal to the resolution Sum Position structure P bit 24 20 19 0 value 00000 mse 1 6 2 Recommended transmission rates The SSI interface has a frequency of data transmission from 100 kHz to 1 MHZ The CLOCK signal and DATA signal follow the EIA standard RS 422 The transmission rate baud rate depends on the length of cables Cable length 400 KHZ 300 KHz 200 KH lt 100 KHZ The time interval between two Clock sequence transmissions must be at least 16us Tp gt 16ys Clock Tp www lika it www lika biz sales phsystems be lixa 7 BiSS B mode interface SMA1 17 S682 SMA1 is a slave device according to BiSS B mode interface and Standard encoder profile Refer to the official BiSS website for all information not listed in this manual www biss interface org The sensor works in point to point configuration and has to be installed on a single master single slave network not on a single master multi slave network CLOCK and DATA signals level are according to the EIA standard RS 422 7 1 Communication The BiSS B mode protocol uses two types of data transmission protocols e Register Mode used to read or write data into the registers of the slave e Sensor mode used to send process data from the slave to the master 7 2 Register Mode See official BiSS documents for complete structure Main control data i
14. s described in this chapter Register address 7 bits Specifies the register to read or write DATA 8 bit Write register value to write into the register transmitted from master to slave Read register value read from the register transmission from slave to master Data bit structure Lowe a ae ee ee l a ee ee CRC 4 bits Correct transmission control inverted output Polynomial X X 1 binary 10011 Logic circuit Input Data starts from MSB MAN SMA1 E 2 3 doc SMA1 7 3 Sensor mode Sensor mode 32 bits is composed by position value 1 error bit nE 1 warning bit nW and CRC checking 6 bits Sensor data structure DATA Stop 34 8 7 6 position error warning Attention Multi Cycle Data bit MCD is not used the master mustn t ask it Position 24 bits Process data transmitted from slave to master The transmission starts with MSB most significant bit and ends with LSB less significant bit r bit 31 28 7 8 value 0000 SB i To see position value in mm multiply the data value received for the resolution see 4Dhex register Error 1 bit Communicates an error of the slave nE 1 correct status no error 0 error status tape not read Check gap between sensor and tape planarity and parallelism of the system Warning 1 bit Not used nW 1 CRC 6 bits Correct transmission control inverted output Poly
15. sor and magnetic j tape along the measuring length Wear of the J i machine may increase the tolerances a OS eae ee e the surface of the magnetic tape should 8 i i i S z Av 5A occasionally be cleaned using a soft cloth to A HA to TP E D aam SOO if remove dust chips moisture etc VREF VREF L Vaer 2 5V 0 5V Vp 1Vpp Av Av R2 R1 ae Aft 7 VREF 1V Av www lika biz PH SYSTEMS www phsystems be sales phsystems be lixa SMAI 12 Troubleshooting 1 1 Add CRC calculations chap 6 1 5 Operating parameters default 0 The following list shows some typical errors that occur during installation and operation of the magnetic measurement system o 20 SWupdate Problem l 34 Add SSI interface The system doesn t work no pulse output Electrical connections chap 5 update Note about MCD bit chap 7 3 Chap 6 update e The tape or sensor has been mounted incorrectly the active part of the tape doesn t face the sensor s active side See chapter 3 for correct installation LED is lighted e A magnetic piece or tape is in between the sensor and the tape Only non magnetic materials are allowed between sensor and tape LED is lighted e The sensor touches the tape because tolerance gap between sensor and tape are not observed Check sensor s active side if damaged e The sensor has been damaged by short circuit or wrong connection Problem The measured values are inaccurate or
16. ust be stable without noise install EMC filters on device power supply if needed always use shielded and twisted cables if possible f Taye ite ite i Biss avoid cables runs longer than necessary Li INTERFACE avoid running the signal cable near high voltage power cables mount the device as far as possible from any capacitive or inductive noise source shield the device from noise source if needed minimize noise by connecting shield or connector housing to ground GND Make sure that ground GND is not E affected by noise The shield connection point to ground a7 can be situated both on the device side and on user s side The best solution to minimize the interference must be carried out by the user Chapters Mechanical safety 1 Safety summary e install according to the chapter Mounting instructions 2 Identification with stationary mechanics parts 3 Mounting instructions e do not disassemble the device A g e do not tool the device 4 Position errors diagnostics do not subject the device to knocks or shocks 5 Electrical connections e protect the system against solvents and substances 6 SSI interface damaging it 7 BiSS B mode interface SMA1 S682 e respect the environmental characteristics of the product 8 BiSS C mode interface eae Le us er es pe pes objects e g metal chips do not come into contact wi ne eu the magnetic tape and the bottom of the sensor head If 10 Dimension
Download Pdf Manuals
Related Search