User Manual
Contents
1. 11 Component Mounting Diagram 11 Component Mounting Diagram 11 1 Connectors and Test Points Figure 24 Connectors and test points 11 2 Dimensions All dimensions in mm Figure 25 Dimensions Document PR 46201 00 02 HB E IPE201 31 GEMAC Sensorik Messtechnik ASIC Design 12 Notes 12 Notes Document PR 46201 00 02 HB E IPE201 322. PR 46201 00 02 HB E IPE201 19 Sensorik Messtechnik ASIC Design 7 6 LED Sensor monitor red LD6 off Sensor adjustment necessary sensor not connected LD4 LD6 green LD4 off Sensor signals valid Power LED Off IPE201 not working LD3 green IPE201 working Table 18 LED 8 Configuration of the GC IP201B 8 1 Configuration Process After the reset of the IC GC IP201B all registers are initialised with their default values Subsequently the configuration register can be modified via USB or SSI BiSS Therefore program ip201 Monitor exe should be used which is downloadable from our website at www gemac chemnitz de de produkte interpolation With this program it is also possible to select the active interface on X6 For further information about how to configure the IPE201 with ip201 Monitor exe please refer to the manual of the program which is also down loadable from our website Attention To avoid communication problems with the PC the hardware address of the IPE201 should always be 0x00 IPE201 cannot be used with another hardware address in combination with the IP201 Monitor exe Document PR 46201 00 02 HB E IPE201 20 GEMAC Sensorik Messtechnik ASIC Design 9 Software IP201 Monitor 9 Software IP201 Monitor 9 1 Overview To control and set up parameters and values of GC IP201B our IP201 Monitor software is recommended This software is developed for windows based pc systems GC IP201B has to
3. serial peripheral interface synchronous serial interface teach signal of the GC IP201B trigger signal of the GC IP201B mean voltage peak to peak voltage square wave signal Z P positive N negative zero signal of the GC IP201B Document PR 46201 00 02 HB E IPE201 6 GEMAC Sensorik Messtechnik ASIC Design 1 Overview 1 Overview The interpolation unit IPE201 was designed to increase the resolution of incremental position and angular measuring systems with sinusoidal output signals offset by 90 The IC inside the device divides the signal period up to 256 times Incremental encoders with voltage interface can be connected directly The interpol ation unit may operate with both single ended and differential input signals Configuration of the unit is possible either via USB via SSI BiSS interface or via the internal EEPROM of GC IP201B Optionally it is possible to order a unit with serial interface 3 3V or 5V system Input signals are subject to GEMAC s patented internal gain and offset control Correnction of the phase dis placement of the input signals is possible as well The quality of the signals issued by the sensors is mon itored in the internal interpolation circuit GC IP201B The unit can be connected via RS422 to a standard counter or control Alternatively it is possible to activate the SSI BISS mode via USB and to connect it to a SSI BiSS master The internal power supply voltage is 5 VDC
4. 25 32 40 50 64 80 100 128 160 200 256 1 fosz 128 fosz ns 0 7 n 155 fosz 187 fosz ns Extruded aluminium housing IP20 SUB D 15pin 55mm x 80mm x 20mm 7 Configuration of the Connectors GEMAC Sensorik Messtechnik ASIC Design 7 Configuration of the Connectors 7 1 Signal output X1 mode ABZ c OA N O a A C PN ek EGE 12 13 14 15 Output VSS Input BP Output VDD Input EP Output nTEACH Input with pullup ZN Output nTRGIN Input with pullup AN Output VSS Input BN Output VDD Input nZERO Input with pullup ZP Output EN Output Square wave Output A positive Unit power supply ground Square wave Output B positive Unit power supply 5V Error Output E positive Teach signal input falling edge active Square wave Output Z negative Trigger signal input falling edge active Square wave Output A negative Unit power supply ground Square wave Output B negative Unit power supply 5V Zero signal input falling edge active Square wave Output Z positive Error Output E negative Table 13 Signal output SUB D 15 pin ABZ 7 2 Signal output X1 mode SSI BiSS c OA N O a A C ND sch sch EEN EG 12 13 14 15 SLOP Output VSS Input SLIP Input VDD Input SENN Input nTEACH Input with pullup MAN Input nTRIG Input with pullup SLON Output VSS Input SLIN Input VDD Input nZERO Input with pullup MAP Input SENP Input Signal SLO positive Unit power supply ground Signal SLI posi
5. 32 AYAYO AYAVAYAYA ALS jMSB XLSB ERR jWAaRNMSBX MT Multiturn Counter 3 ST Singleturn Counter POSIT Register MT 0 16 Bit ST 16 32 Bit E 2 Bit CRC 6 Bit E Error Waming to BiSS SCD CRC Checksum BiSS SCD single cycle data Figure 7 BiSS SCD Single Cycle Data Via access to the BiSS register all further IC registers are reachable In case of reading the 32 bit data re gisters the bit READ32 in the register CFGBISS has to be set Register read accesses via BiSS occur in 32 bit format Four consecutive addresses always starting with the least significant one divisible by 4 are read by the BiSS master Additionally the advices for setting the bits SYNC 4 0 in register CFG2 have to be con sidered as well see datasheet of the GC IP201B Bit Meaning Vendor configuration BISSTO BiSS Timeout 25 6us at 40MHz READ32 Data format read access Reading of configuration registers Table 6 register CFGBISS BiSS Mode Vendor configuration BiSS serial number 0x00 BiSS Vendor ID 0x47 0x43 GC BiSS Device ID 0x51 0x01 Ox1E 0x00 BiSS Profile Electronic data sheet EDS unused Table 7 Default values BiSS register Further specification of the BiSS interface signal waveforms register description as well as information re garding the electronic datasheet EDS can be found on the website www biss interface com 4 2 2 SSl interface The SSI interface of the IPE201 will be activated if
6. A GEMAC Sensorik Messtechnik ASIC Design User Manua IPE201 Version 1 2 Date 01 08 2013 GEMAC Gesellschaft fur Mikroelektronikanwendung Chemnitz mbH Telefon 49 371 3377 0 Zwickauer StraBe 227 Telefax 49 371 3377 272 09116 Chemnitz E Mail info gemac chemnitz de Germany Web www gemac chemnitz de Revision Overview GE MAC Sensorik Messtechnik ASIC Design Revision Overview 18 06 2013 1 0 First version 04 07 2013 1 1 Addition of Chapter 10 2 Standard delivery configuration 01 08 2013 1 2 Correction relating to Modi description Bit description BISS Connector description Addition of Chapter Software IP201 Monitor 14 10 2013 1 3 Update of chapter 3 4 and picture 5 Copyright 2013 GEMAC Gesellschaft fur Mikroelektronikanwendung Chemnitz mbH Subject to change without prior notice Our policy is one of continuous improvement and consequently the equipment may vary slightly from the description and specifications in this publication The specifications illustrations and descriptions provided in this documentation are not binding in detail No part of this publication may be reproduced in any form or by any means without the prior written permis sion of GEMAC Gesellschaft fur Mikroelektronikanwendung Chemnitz mbH All rights according to copyright law expressly reserved to GEMAC Gesellschaft fur Mikroelektronikan wendung Chemnitz mbH Document PR 46201 00 02 HB E IPE201 1
7. GEMAC Sensorik Messtechnik ASIC Design Table of Contents Table of Content Ke 7 F R ET 8 SAAB BES e EE 9 3 1 Connection of a Measuring System esssssssssssssessssesseee nene nennen nnne nnne nnne nns ea raras sa senis 9 3 2 DESSHDUION OP TO Ano HE ANOO E 10 33 EE 10 9 2 Helerence elu um 11 BUE EON LR EE EEN 12 4 1 Qutpu t Signals E E 12 4 2 Input and Output Signals R8485 Mode SSI Dat 12 221 Bis e E E le 12 are e EE 13 A Uh OW e e EE 14 2 4 TIGEN EE ee 14 e Ee IVA RR 15 POZO EE 15 9 a si ses Ufo DB Met ANG PPP 15 5 1 Edge Interval Setting tor ABZ LEE 15 pe Digtal Hysteresis for ABZ Sale E EEA 16 6 Specifications uuusnsnennsnennenennennnnennnnennnnennnnnnnnnnnenennenennenennenennenennenennensnnenennensnnensnnensnennsnennennnnnnnnnne nen 17 2 SO NO aU ON Ol IN SOnNE CL On ee ee ner 18 7 1 Signal output X1 mode ABZ nenn nun nne nsu nne sisi rie rie sisi ii si sa sa si sa sa nn 18 7 2 Signal output XI mode SSI BISS i EE 18 7 3 Analogue Output Header A7 19 TE MU oS ag tM EN 19 75 lO Mal PUL XO FEN Ale SEER 19 TOLED 20 8 Configuration Of the GGAP 201 m 20 Bl OMIM GEL ANON ele 20 I SO AAs uri Ee Te e EE 21 SER ee 21 9 2 System REQUIFEMENHS ccccceecceseceeecceeeceeeceueceueeceecueseesuecauecsueesueesaeessuecsueeseeesseesse
8. In addition several functions of the interpolation circuit GC IP201B e g switchable analog filter or a digital hysteresis make the unit an ideal choice for use in control systems Block diagram SPI USB Interface IPE with Interpolation Analog Input Circuit RS422 Output dees SSI BISS Interface Figure 1 Block diagram Note Detailed description of all functions can be found in the data sheet of GC IP201B Document PR 46201 00 02 HB E IPE201 7 GEMAC Sensorik Messtechnik ASIC Design 2 Features 2 Features LEST Analog input Sine cosine reference index signals differential or single ended Adjustable amplification for 1Vpp 500mVpp 240mVpp 80mVpp Input frequency max 440 kHz SSI BiSS max 140kHz ABZ at full interpolation rate Optionally active UU converter to connect current encoders 3 3V sensor input on request ABZ 90 square wave sequences A B Z Adjustable width zero signal Z of 1 4 or 1 period A B Error signal Auxiliary signals for sensor adjustment RS422 interface SPI 30 bit counter value 16 bit multiturn value Up to 500 000 measurement values per second 9 bit for sensor monitoring Compatible to the standard SPI 16 bit MSB first SPI clock up to 25MHz Selectable analog noise filter SSI and BiSS 90 bit counter value 16 bit multiturn value 2 bit sensor monitoring Graycode binary code adjustable timing SSI ring operation Additional in
9. Oszilloskop 2 Darstellung Zeit X Y Speichertiefe 600 Samples Y Anzeige d Legende J Antialiasing J Aktivieren R cksetzen Datenspur 2 457 J Anzeigen X Wert Sinus korr ADC z X Minimum 495 X Maximum 495 Y Wert Cosinus korr ADC Y Minimum Y Maximum 495 Modus Linien 9 Punkte Farbe ii r 20 7 fps Figure 23 Oscilloscope XY graphic Document PR 46201 00 02 HB E IPE201 29 GEMAC Sensorik Messtechnik ASIC Design 10 Ordering Information IPE201 10 Ordering Information IPE201 10 1 Ordering Information IPE201 Interpolation Unit with GC IP201B standard configuration ABZ PR 46201 00 Table 23 Ordering Information 10 2 Standard Delivery Configuration 10 2 1 Hardware Configuration SSES Sensor input Differential input signals with 1Vss amplitude Digital output ABZ signals Table 24 Hardware delivery configuration 10 2 2 GC IP201B Configuration Interpolation rate 256 Reference point detection Active Reference point width 1 Increment Output signals ABZ Digital hysteresis Active Low pass at input Active fy 450kHz Error signals Active errors will not be stored bit HLD at register CFG1 of the IP201B is not set SPI Filter of SPI input signals used for USB communication bit SPISLOW at register CFG3 of the GC IP201B not active Table 25 GC IP201B delivery configuration Document PR 46201 00 02 HB E IPE201 30 GEMAC Sensorik Messtechnik ASIC Design
10. ees eeeeeceeeseeeeeeseeseeceeeseeesueseeeseeaeaeatenenees 10 TABE lt I Vea CONS EE 10 Table 4 Reference signal internal ccccccccecceccseeeeeeceeeseeeeeeceeeseeeseeseeceeeseeeseeeeeeseeeeueeseeseeeeseseaeaegeeeenens 11 Table 5 Configuration of the reference pont 11 Table 6 register CFGBISS BISS Mode cccccccceeceseceseeeseeeteeeeeeceeeeeceeeseeeeeeeseeeceueesueeseeeseeeteetesenenenenes 13 Table 7 Default values BES T UISIBE EEE 13 Table 8 Register EFGBISS SS El e EE 14 Table 9 Configuration of the interpolation rate ccccecccececeeeceeeeeeeeeeeseeeceeeceueeseceeeeaeesseeseeeteueesneeneneees 15 Table 10 Minimum edge interval ccc ccc cece cece cece eeseeeeeeceeeseeeeeeceeceeeseeeseeeeeeseesueceeeseessueseeeseeeeeseneaeaeas 16 Table T15 Gopilgur HEIEREN 16 Table Te oe eaS oei ETT T 17 Taole TS Sna 0 Dur SUB D Ke EE E 18 Table 14 Signal output SUB D 15 pin SSI Bb 18 Table 15 Analog test signal sine cosine cccccecccecccecceeeceeeseeaeeceeeceeeeeeceesseeceeeseeeseeseeseessueteseaeaeeeeenees 19 Table 16 USB lee EE 19 Table 17 Signal input SUB D 15 pin female 2ucssuessnesssensnusnnnnnnennnennnnnnnnnnnnnnnnnnnennn nenn nenn nennen 19 TaDle e LED eA AA A A er 20 FaDIE 19 eO BR 25 Japle 20 Saus LEDS ee ee ee 25 Table 21 Sensor MONO IUe tiu dina eR a oda dao ae t toi een ten Few tend ees da ea e enn es adu RE PR ERI 26 Table 22 Range for sensor MONITOLING n
11. increment if the digital hysteresis is activated 4 2 Input and Output Signals RS485 Mode SSI BiSS It is possible to read out measured values or to configure the IPE201via the SSI or the BiSS interface The selection of the interface SSI or BiSS is done by the modification of the bit SSI at the register CFG3 of the GC IP201B Once the IPE201 is connected to the PC via the USB interface the SSI BiSS interface is inact ive 4 2 4 BiSS Interface The BiSS C mode interface of the IPE201 will be activated if the bit SSI at register CFG3 is cleared For use of the BiSS interface the integrated EEPROM must contain a valid configuration because essential operat ing parameters are stored in EEPROM The configuration bits BISSTO and READ32 in register CFGBISS can be used to adapt the interface to the system s parameters The Single Cycle Data SCD transferred in BiSS C mode contains the actual position value from register POSIT see datasheet of GC IP201 with an overall length of 40 bit This includes the 32 bit position two bits of error information error and warning bit and the CRC check sum 6 bit inverted Since the higher ranking interface master can usually only handle Document PR 46201 00 02 HB E IPE201 12 Sensorik Messtechnik ASIC Design 4 Input Output Signals GEMAC binary resolution it is vital that in case of the use of the multi turn counter one of the following interpolation rates should is set 256 128 64 or
12. the bit SSI at register CFG3 is set to 1 For use of the SSI interface the integrated EEPROM must contain a valid configuration because essential operating para meters are stored in EEPROM The bits BISSTO and RING in register CFGBISS are initialised in the EEP ROM by the end user based on system parameters The SSI data output contains the position value re gister POSIT see datasheet GC IP201B with an overall length of 13 or 25 bit The data contains the inter polation counter value 2 single turn counter and the multi turn counter value Additionally a bit for the error information is reserved Since the higher ranking interface master can usually only handle binary resolution it is vital that in case of the use of the multi turn counter one of the following interpolation rates is set 256 128 64 or 32 If the bit RING in the register CFGBISS is set the SSI master will be able to enforce a repeat able data transmission of the same value by continuous clock SSI ring mode Document PR 46201 00 02 HB E IPE201 13 Sensorik Messtechnik ASIC Design 4 Input Output Signals GEMAC msB LSB AMSBA atc MT Multiturn Counter POSIT Register MT 0 16 Bit ST 16 24 Bit E ST Si be ngleturn Counter SSI DATA CRC Checksum Figure 8 SSI POSIT Register MT 0 16 Bit ST 16 24 Bit E MT 0 16 Bit ST 16 24 Bit E to SSI Data SSI DATA SSI DATA repeated Figure 9 SSI ring mode Bit
13. Ee en uc 27 Figure 16 Sensor Expert CEO 27 POE TAE E E EE 27 Figure 19 SEensor Expert GFGBISS ae T 27 Figure 19 Software Com MUR eio E 28 Figure 20 Software Dreplaw kt kt kk Ek ERE ERNE REE REE R EEN nennen nnne nnne nnne ENE sisi sa sa sese enis 28 Figure 2120 ANS US IU REO 28 Figure 22 Oscilloscope time grap LL 29 Figure Ree e OBE A e TEE 29 Figure 24 Connectors and test points 31 FN 23 Re Ee e ETES ERE 31 Document PR 46201 00 02 HB E IPE201 5 Terms Definitions and Abbreviations GEMAC Sensorik Messtechnik ASIC Design Definitions and Abbreviations AVSS A B BiSS Cos DNC DVDD DVSS EN EP MA REF RS422 SENSVDD Sin SLI SLO SPI SSI TEACH TRG VO ground analog GND square wave signal A P positive N negative square wave signal B P positive N negative bidirectional synchronous serial interface cosine signal P positive N negative do not connect supply voltage digital 5V ground digital GND error signal negative error signal positive master clock BiSS SSI P positive N negative reference signal P positive N negative EIA 422 conduction bound differential serial data transmission supply voltage analog 5V sinusoidal signal P positive N negative BiSS data input P positive N negative BiSS SSI data input P positive N negative
14. G1 GAIN 1 0 00 01 10 11 Gain factor nominal 1 2 4 12 5 Input voltage for differential supply mVpp 1 500 250 120 40 Input voltage UDiff nominal mV pp 1000 500 240 80 Input voltage range for UDiff mV pp 600 1200 300 600 150 300 45 90 Hysteresis reference comparator nominal mV 150 75 36 12 Bit CFG1 LPF recommended recommended recommended necessary GEMAC Sensorik Messtechnik ASIC Design 1 at each of the inputs SINP SINN COSP COSN Table 2 Description of the input amplifier 3 3 Signal Correction Input signals are subject to GEMAC s patented internal gain and offset control The amplitudes are con trolled in the range between 6096 and 120 of the standard amplitude Control range for the offset of the two signals is max 10 of the nominal amplitude The phase shift of the input signals can be adjusted statically by the internal potentiometer in the range of 5 or 10 There are two measuring points for testing the signals X2 Pin 1 SMON and X2 Pin 2 CMON as a percentage referred to the Parameters as a percentage referred to the nominal amplitude ADC maximum PEAK PEAK PEAK PEAK in mV referred to in V the pin the standard signal 1Vpp SMON or CMON Maximal value at the input 150 100 1500 1 91 Nominal value of the input signal 100 66 7 1000 1 27 Guaranteed control range for the amplitude 60 120 40 80 600 1200 0 76 1 52 Setting range of
15. Meaning Vendor configuration RING SSI ring mode Ring mode Seis Output data length 13 bit Table 8 Register CFGBISS SSI Mode 4 3 Error Signal An error signal will be generated if the input signals are no longer plausible The error signal will also be generated if the input frequency is so high that the square wave signals are unable to follow and or when the maximum input frequency is exceeded It is recommended to use the error signal for data processing Note If the error signal was detected the current measuring results and the following results should be discarded Following elimination of the cause of the error and a reset of the error bit the reference point has to be passed by for absolute value measurements once again 4 4 Trigger Signal The current counter value is shifted to one of the trigger holding registers by a signal edge at the trigger in put of X1 The active trigger edge is set with the bit TRGSLP in the register CFG1 Document PR 46201 00 02 HB E IPE201 14 GEMAC Sensorik Messtechnik ASIC Design 4 Input Output Signals 4 5 Teach Signal By using the signal teach it is possible to store a reference mark in the EEPROM of GC IP201B Therefore it is necessary to set the bit TEAEN in register CFG1 4 6 Zero Signal By using the signal zero it is possible to reset the internal counter of GC IP201B and if occurred reset the corresponding error bit After the rectification of the error cause and res
16. alue Error Trigger Evlow Ecor o TRGPIN Trigger status ECADC Q ESOFF Q TRGTIM ESADC Q TRGZ EFAST Q TRGOVL Emor EABZ o status Reference Reference LED DS mark status i ESGAIN QO ZSTAT Q Figure 11 Measurement Interpolation 1 If a measurement is started the actual counter value is displayed in window IP Measurement 1 A selection between measured value register MVAL of GC IP201B counter value register CNT and position register POSIT see register description at the datasheet of GC IP201B is possible By choosing the position single and multiturn information can be displayed according to the circuit configuration registers CFGBISS MT BIT CFGBISS STBIT The display of the error LEDs also depends on the circuit configuration Every single error can be activated deactivated or stored in the configuration register CFG1 According to this the behaviour of the LEDs is ad apted The LEDs for error trigger and state of the reference mark correspond to the information at the status register STAT of GC IP201B The meaning of the LEDs is shown in table 19 The status LEDs are de scribed in table 20 EVLOW green No vector error red The signal vector generated from the sinusoidal and cosinusoidal signals is too small Usually the cause is a partly or completely disconnected sensor Another cause are input signals with a very large offset and a low amplitude occuring at the same time ECADC green No ADC error at cosinuso
17. be connected via USB cable to the pc system USB port pc X4 Optionally Configuration is also possible using BiSS adapter iC MB4U and software 9 2 System Requirements To ensure the correct working of the software the following requirements are recommended E Hardware Processor 2GHz or more recommended multi core Min 512MB main memory Min 1GB mass storage for measuring values Graphic card with 24Bit shade recommended 32 Bit Resolution 1024x768 pixel or more USB port E Operating Systems Microsoft Windows 2000 Microsoft Windows XP Microsoft Windows Server 2003 Microsoft Windows Vista Microsoft Windows 7 9 3 Installation The software and USB driver are installed via 44025 SW x x IP201 Monitor Setup exe file 9 4 Program Structure The graphical interface of the configuration program is divided into a dialog bar a status bar and two areas for the display of the measured values The dialog bar is located directly below the toolbar In this area the interface SPI via USB or BiSS can be selected In addition a measurement is started the time interval for the query can be chosen and commands for resetting e g counters can be triggered The measured values and status information of the GC IP201B are shown in measurement windows 1 amp 2 The update of the measurement values is specified by the time interval After starting the application as shown in Figure 5 the software checks for the
18. dial signal red The AD converter for the cosinussodial signal is overdriven The cause is that the signal amplitude is too high Another cause are input signals with a very large offset and a high amplitude at the same time ESADC green No ADC error at sinusodial signal red The AD converter for the sinussodial signal is overdriven The cause is that the signal amplitude is too high Another cause are input signals with a very large offset and a high amplitude at the same time EFAST green No speed error Red The input frequency is so high that no A B signals can be generated or the direction can no longer be detected The monitored frequency is different depending on whether an internal counter or the square Document PR 46201 00 02 HB E IPE201 24 EABZ ECGAIN ESGAIN ECOFF ESOFF Sensorik Messtechnik ASIC Design wave outputs A B Z are used green No error on A B Z red The signals A B and Z are invalid The cause is an excessive input frequency The monitored frequency depends on the set minimum edge interval tee This error bit will also appear if the interpolation rate or the minimum edge interval tee is changed Detection of this error has to be deactivated when using the GC IP201B with an internal counter only MABZ 0 green No amplitude error at cosinussodial signal red The gain controller for the cosinussodial signal has reached its limit The cause is either that the signal amplitude is too low or the
19. eesueseeesenenes 21 9 3 a e EE 21 9d eelere EEN 21 Eege 22 GE le er 23 9 7 Measurement ANE Ed DE ne sii OE SONETON LEE SEERE ases sa ses seen 24 9521 JESIMOSSUPETIODE E 24 97 2 IUE DIRE cn 25 SE Gehe t T 26 Document PR 46201 00 02 HB E IPE201 2 GEMAC Sensorik Messtechnik ASIC Design Table of Contents SER ES SIS ole EE 26 9 8 2 OOIIWOL COMMUNIC AU ON ue uo utu OS E DHEEENIEDE HENCN ONCE DUE EEFCHD tes tied a ee 28 98 3 SOM Ware DISDIAY 28 98 2 ENEE Un Te DEE 28 SE 29 O carde mO at STE ga lee e a4 NEE 30 TO HO ice TING GORA cuento 30 10 2 Standard Delivery Configuration c ccccccccsececseeeceeeeceeeeseneeseeecceeesceeesceeesceeesceeesceeseececesesenaes 30 10 2 1 Hardware Contguraton skt kk Ek nennen ERE REE nene nene ne aras seen nas 30 10 2 2 GC IP201B CGonfguraton enne nnne n nnne nnn nenn nennen 30 11 Component Mounting Diagram enne nnne nnne nnne nn nna nn sna nns na nnns nnne sa se nenn 31 1121 Gonmeelors and WES Ei ONS EE 31 T2 DME NEON a 31 Ie NOO TR m 32 Document PR 46201 00 02 HB E IPE201 GEMAC Sensorik Messtechnik ASIC Design List of Tables List of Tables Table 1 Overview features ssssssssssssssssssssesesneenne nennen nne nnne nen nse ria se sie riis se sie sias s asa sese sa saa san sas 8 Table 2 Description of the input amplifier ccc cec cece cece eeece
20. ennen nennen nnn nn nre nsa REE RE sa sans 26 Table 23 Ordering Information 220022022002000nnonnnennnnnnennnennennnnnnunnnennnnnnu nenn nnnnnnennnennnnnnennnennn sa nennen 30 Table 24 Hardware delivery configuration ccc cece ecceeccececeeeaeece cece eeseeceeeseeeeeeseeesueseeeseeeseeeeeeseaeaeaeesenees 30 Table 25 GC P201B delivery can te e len DEE 30 Document PR 46201 00 02 HB E IPE201 4 List of Figures GEMAC Sensorik Messtechnik ASIC Design List of Figures FIOULS TE BIOCK Tel WE 7 Figure 2 Input signals single ended nenn nenn nano nnne nennen nenn nennnnnnennnenenenenenennnnnn nennen nenn 9 Figure 3 Differential input signals u02442440440 Rene kt ann nnnennnennnnenennnnenennn nenn nenennnnnnnnenennnnnnnenensnnnnn nennen 9 Figure 4 Connection of a measuring system nen 9 leie Ee ee M 11 Figure 6 Interpolation output signals ccccceccceccseeeeeeceeeneeeeeeceeeseeeeeeeeeeeeeeeeeseeeeueseeeneesaeeteeeneesseeeeaeananes 12 Figure 7 BISS SCD Single Cycle Data 2 0 0 0 cecccceccccececeeeeeeeeeeeeeseeesee cess nennen nennen nennen nnns nasse 13 el aac eee ep 14 FU US FS SKR FRR e 14 Fr 102120 EMO i e lee Le 22 Figure 11 Measurement Interpolation A 24 Figure 12 Measurement Interpolation 2 25 Sieft rome Rea OO ANO DEE 26 Figure 14 Sensor Paramete 555 EEN EEN EEN sa sana nan 27 miel EAR ESS
21. etting of the error bits it is imperative to pass through the reference point to be able to perform further absolute measurements 5 Interpolation Rate Possible interpolation rates IRATE which can be selected are 256 200 160 128 100 80 64 50 40 32 25 20 The term interpolation rate is here understood as the number of increments into which the sinusoid al cosinusoidal period of the input signals is divided Interpolation rate CFG1 IR 3 0 200 0000 0 100 0001 1 50 0010 2 25 0011 3 160 0100 4 80 0101 5 40 0110 6 20 0111 7 256 1000 8 128 1001 9 64 1010 10 32 1011 11 Table 9 Configuration of the interpolation rate Note The interpolation rates 50 and 25 should only be configured if the internal counter is used mode SSI BiSS In this case the ABZ signals are not valid 5 1 Edge Interval Setting for ABZ Signals The minimum time interval top at which the output signals A B and Z may switch can be adjusted in binary steps between 1 fosz and 128 fosz This function can be used to restrict the bandwidth of the IPE201 for slow RS422 counters Document PR 46201 00 02 HB E IPE201 15 GEMAC Sensorik Messtechnik ASIC Design 5 Interpolation Rate Min edge interval tpp Register CFG1 TPP 2 0 1 fosz 000 0 2 fOSZ 001 1 A fosz 010 2 8 fOSZ 011 3 16 fosz 100 4 32 fOSZ 101 5 64 fosz 110 6 128 fosz 111 7 Table 10 Minimum edge interval 5 2 Digital Hyste
22. lator offset correction value Offset sine i Measured value Actual regulator value for offset correction Vector LED bar Vector magnitude of the input signals ADC cosine LED bar Range of the AD converter ADC sine Measured value Actual input voltage at the A D converter Table 21 Sensor monitoring LED bar Value green lies at the allowed range yellow left Is too small sensor signal should be aligned yellow right IS too big sensor signal should be aligned red left IS too small measured value is incorrect red right is too big measured value is incorrect Table 22 Range for sensor monitoring 9 8 Configuration After the IPE201 and circuit GC IP201B have successfully been detected the software tries to read the cur rent configuration The user has the opportunity to confirm this or to create a new configuration File gt New symbol white sheet In addition a previously saved configuration with the extension IP201 can be loaded File gt Open folder icon Sensor Parameter Do you want to read the parameters of the connected IC Do not ask again Figure 13 Read configuration 9 8 1 Sensor Parameter Expert In the first tab Sensor Parameter of the sensor configuration menu basic settings such as interpolation rate and input amplitude can be adjusted This allows switching between the basic functions of the GC IP201B without much effort The saving of the selected
23. meter Sensor Expert Software Communication Software Display Software Streaming DISLP LP PHBER PH OFFSCTL GAINCTL DISCTL ASYNC SYNC NT TIMER Ox 00 00 00 00 C 450k O D veryslow veryslow v Eeer 32 amp Dr Figure 15 Sensor Expert CFG1 Configuration Sensor Parameter Sensor Expert Software Communication Software Display Software Streaming Configuration PRE MT SSI SPISLOW ZDEL DISZ ZMODE PHIOUTZ ZPOS L1 LI 0 Ox 00 00 40 04 Increment v 0O 4 Ox 00000000 Figure 16 Sensor Expert CFG2 Sensor Parameter Sensor Expert Software Communication Software Display Software Streaming CFGl CFG2 CFG3 Parameter CFGBISS Register 55113 RING SSITO MTBIT GRAY STBIT READ32 Op BISSTO Ox 33 1D 3E 2A 797 OBt 30 O 10 Figure 17 Sensor Expert CFG3 Document PR 46201 00 02 HB E IPE201 Figure 18 Sensor Expert CFGBiSS 27 9 Software IP201 Monitor 9 8 2 Software Communication The settings for the clock divisor for communication via the interfaces SPI via USB or BiSS are made in this tab The wait ing time for the SPI interface after a read ac cess can also be set for more information see data sheet of GC IP201B In the area for BiSS interface a configuration file BISS xml file can be loaded for the configuration of a BiSS master At the area Config Ou
24. nt Store document Configuration chapter Information Document PR 46201 00 02 HB E IPE201 Create a new configuration file Open and read a file with configuration details Store configuration details into a document Oscilloscope Open the oscilloscope view for sensor signals chapter 9 9 Export Export of measurement values into file Open the configuration menu Details to software firmware and hardware 22 GEMAC Sensorik Messtechnik ASIC Design 9 Software IP201 Monitor 9 6 Assistance During the development of the configuration program special attention was paid to clear design and a self explanatory graphical interface Many elements of the user interface display detailed explanations once the mouse is moved over it tooltip or status text Document PR 46201 00 02 HB E IPE201 23 9 Software IP201 Monitor GEMAC 9 7 Measurement Once the IPE201 is connected to a PC and has been detected by the software a live measurement can be started by pressing button Start The displays in both windows will be updated depending on the chosen in terval time The selected measurement interval is only a target value The real measurement interval de pends on software configuration and interface as well as PC capability and workload 9 7 1 IP Measurement 1 IP Measurement 1 X Value Display Selection Display Meas value Count value displayed n emm v
25. o one quarter of the period duration of the signals A and B The Z impulse extends over a whole period if four increments are selected 0 1 increment 1 4 period 1 4 increments 1 period Table 5 Configuration of the reference point GEMAC Sensorik Messtechnik ASIC Design 4 Input Output Signals 4 Input Output Signals It is possible to run the IPE201 in two different modes The mode ABZ is the normal counter mode with the ABZ signals on the output standard mode at delivery At SSI BISS mode it is possible to configure the IPE201 or to read out measured values via the SSI BiSS master The running mode is also configurable by USB 4 1 Output Signals RS422 The output signals are phase shifted square wave sequences as common for incremental measuring trans ducers which are counted in single or quadruple evaluation mode A synchronous Z impulse will be gener ated when the angle of 0 refer also to Figure 4 is passed through and the analog differential inout voltage between REFP and REFN exceeds the positive comparator hysteresis level If the differential input voltage is permanently above this level the reference pulse will be generated once during every signal period The output signals are differential AP AN BP BN ZP ZN Forward A before B Backward B before A _ 8 Z CFG1 Z4 1 45 45 Figure 6 Interpolation output signals Note The Signals A B and Z are offset in time by 1
26. parameters into the EEPROM of GC IP201B is done using the Program button The button Verify is used to compare the data between software and EEPROM and finishes by delivering the result of this comparison If differences are observed the button Read is used to read the values of the EEPROM and to show them in the display of the software Document PR 46201 00 02 HB E IPE201 26 9 Software IP201 Monitor Configuration Interpolation rate Reference point width 1 Increment Outputs A BJZ Standard Digital hysteresis 1 Input amplitude Figure 14 Sensor Parameter GEMAC Sensorik Messtechnik ASIC Design For further configuration of GC IP201B the tab Sensor Expert has been designed This is directly based on the definitions in the configuration register CFG1 3 and CFGBiSS which can also be programmed individu ally The detailed description and explanation of each parameter can be found in the data sheet of GC IP201B Reading programming and verifying the parameters follows the same procedure as the Sensor Parameter tab Configuration Sensor Parameter Sensor Expert Software Communication Software Display Software Streaming Configuration ZSIGNAL IRATE 1PULSE 256 Ox 0908 TEAN TRGSLP EOFF EABZ EFAST EADC EVLOW TRI HLD Ox 3F7F C FALL STORE STORE STORE STORE STORE STORE Sensor Para
27. presence of the hardware If a hardware is detected according to the selected interfaces the name of the hardware will be displayed in the status bar If the IPE201 is properly connected and enabled the status bar additionally displays the circuit name eg IC GC IP201 If no circuit can be detected unknown appears 1 Microsoft and Windows are registered trademarks of Microsoft Corporation in the U S and other countries Document PR 46201 00 02 HB E IPE201 21 9 Software IP201 Monitor GEMAC Sensorik Messtechnik ASIC Design A Untitled IP201 Monitor File Extras Help JcouHMo Ww Commands View Communication Interface Measurement Osi BISS Interval 1000 Gain cosine Offset cosine Display Gain sine Offset sine Error Trigger EVLOW Vector ECADC ESADC EFAST EABZ ECGAIN ESGAIN TRGPIN TRGTIM TRGZ TRGOYL ADC cosine ADC sine Reference ZSTAT No device Found Ready Joey GEMAC ms Meas value Figure 10 IP201 Monitor start window When using the BiSS interface it is necessary that the connections between circuit and interface and between the interface and PC exist This enables the software to scan and define the hardware and inter face It may be necessary to change the interface selection after connecting the hardware The scan of the device will then 9 5 Menu E GT fn be restarted New document al Open docume
28. puts Trigger signal for storing actual measured value in one of the two trigger holding registers Zero signal and teach signal for adjusting and storing of the zero point of the sensor Configuration options Internal EEPROM USB Serial interface SPI SSI BiSS Interpolation signal handling Interpolation rate 256 200 160 128 100 80 64 50 40 32 25 20 Signal correction Patented digital controller for the offset control range 10 of standard amplitude Patented digital controller for the amplitude control range factor 60 120 of nominal amplitude Digital potentiometer with 15 steps for phase correction selectable range 5 or 10 Behaviour of IC in case of sensor error can be programmed LED control signal Suppression of disturbances adjustable low pass filter 10KHz 75kHz 200kHz 450kHz Digital hysteresis for suppression of the edge noise at the output adjustable minimum edge interval of output signals Reference signal processing Adjustable reference mark position in 32 steps 0 360 Optional alignment of the reference mark position configuration possible via SPI USB BiSS or external signals possible Processing of distance coded reference marks Measured value trigger at the reference mark position Miscellaneous 2 stage measured value trigger Programmable timer 3 2us 420ms Constant delay between sampling and measurement value for all resolutions multi
29. resis for ABZ Signals To suppress the edge noise of the output signals at low input frequencies and standstill a digital hysteresis can be activated for the signals A B and Z by set reset the bit DHO in register CFG1 This prevents switching off of the outputs when static input signals occur In this case all output signals are delayed by one incre ment CFG1 DHO Digital hysteresis 0 deactivated 1 activated Table 11 Configuration of the hysteresis Document PR 46201 00 02 HB E IPE201 16 6 Specifications 6 Specifications GEMAC Sensorik Messtechnik ASIC Design Characteristic values Recommended Operating Conditions Supply voltage Supply current Internal interface voltage Mid voltage VoBUF Output current on VOBUF Operating temperature Analog input specifications Input frequency Phase offset between SIN and COS Peak to Peak input voltage SINN lt SINP COSN gt COSP Phase deviation Oscillator frequency Interpolation Interpolation rates Minimum interval time A B signals Interpolation accuracy Propagation delay square wave outputs A B Z Other characteristics Degree of protection Connector Dimensions Table 12 Specifications Document PR 46201 00 02 HB E IPE201 Min Nom Max Unit 4 75 5 0 5 5 V 110 230 mA 3 3 5 0 2 1 2 25 2 4 V 30 mA 40 85 C Min Nom Max Unit 440 kHz 90 i 0 08 1 0 1 2 Vpp 4 5 9 5 10 9 11 S 40 MHz Min Nom Max Unit 20
30. sensor is partly or fully disconnected green No amplitude error at sinussodial signal red The gain controller for the sinussodial signal has reached its limit The cause is either that the signal amplitude is too low or the sensor is partly or fully disconnected green No offset error at cosinussodial signal red The offset controller for the cosinussodial signal has reached its limit The cause is an excessive signal offset a partly or fully disconnected sensor or an invalid value for the initialisation of the offset controller green No offset error at sinussodial signal red The offset controller for the sinussodial signal has reached its limit The cause is an excessive signal offset a partly or fully disconnected sensor or an invalid value for the initialisation of the offset controller Table 19 error LEDs LED TRGPIN TRGTIM TRGZ TRGOVL ZSTAT Trigger status pin active The next value at register MVAL was triggered by the Pin TRG inactive The register MVAL contains the actual measured position value register POSIT Trigger status timer active The next value at register MVAL was triggered by the timer inactive The register MVAL contains the actual measured position value register POSIT Trigger status reference mark active The next value at register MVAL was triggered by the reference mark signal inactive The register MVAL contains the actual measured position value register POSIT Trigger o
31. the amplitude controller 56 168 1 38 11271 560 1680 1 Q 71 2 03 1 Vector monitoring 2 30 20 300 0 38 Guaranteed control range for the offset sensor 15 10 100 0 133 Setting range of the offset controller 25 i7 250 0 315 1 The setting range for the amplitude is greater than the control range of the ADC Therefore the upper limit of the setting range cannot be fully utilised for the analogue signals 2 An aggregate signal from sine and cosine is monitored Table 3 Signal correction Document PR 46201 00 02 HB E IPE201 Sensorik Messtechnik ASIC Design 3 Input Signals GEMAC 3 4 Reference Signal The reference signal of measuring systems is typically called REF index point or zero point signal The ref erence signal is detected if the voltage on input pin REFP is bigger than voltage on input pin REFN 180 90 180 90 RY LIN LK WWW uu Figure 5 Reference signal The reference point processing in the IPE201 can be deactivated in the internal configuration ifno detection of the reference signal is needed 0 Reference signal at the output active Note 1 Reference signal at the output inactive Table 4 Reference signal internal Note The shape of the Z signal on the output of IPE201 can be adapted for different applications by configuring the interpolation circuit If one increment is selected for the width of the Z signal the Z impulse on the output corresponds exactly t
32. tive Unit power supply 5V Signal SEN negative Teach signal input falling edge active Signal MA negative Trigger signal input falling edge active Signal SLO negative Unit power supply ground Signal SLI negative Unit power supply 5V Zero signal input falling edge active Signal MA positive Signal SEN negative Signals could be left open Interface configuration is done internally Table 14 Signal output SUB D 15 pin SSI BiSS Document PR 46201 00 02 HB E IPE201 GEMAC Sensorik Messtechnik ASIC Design 7 Configuration of the Connectors 7 3 Analogue Output Header X2 1 SMON Output analog test signal sine 2 CMON Output analog test signal cosine 3 GND Input analog ground for measuring Table 15 Analog test signal sine cosine 7 4 USB Interface X4 1 USB 5V 2 USBD Data 3 USBD Data 4 ID 5 USB GND Table 16 USB interface X4 7 5 Signal Input X6 Female SINP Input Encoder signal sine positive 2 AVSS Output Encoder ground 3 COSP Input Encoder signal cosine positive 4 SENSVDD Output Encoder power supply 5V 5 D m 6 s 7 REFN Input Encoder signal reference negative 8 9 SINN Input Encoder signal sine negative 10 AVSS Output Encoder ground 11 COSN Input Encoder signal cosine negative 12 SENSVDD Output Encoder power supply 5V 13 DNC Do not connect 14 REFP Input Encoder signal reference positive 15 Table 17 Signal input SUB D 15 pin female Document
33. tput it is possible to choose the actual interface on X1 Attention The BiSS interface is only active if the IPE201 is not connected via USB 9 8 3 Software Display Configuration GEMAC Sensorik Messtechnik ASIC Design Configuration ca 2S Sensor Parameter Sensor Expert Hardware Communication Software Display Software Streaming Clock Divisor J Automatic 68 97 kHz ABZ BISS Hardware Address Multi Slave 00 3 Set Wait after RDO 5500 ns Clock Divisor 1 gt 5 00 MHz Hardware Address roac 0 Config File L Messtechnik GEMA idbiss4743 xml Close Figure 19 Software Communication ka Unit the Conversion 1 000000 Resolution 0 0001 T Close Sensor Parameter Sensor Expert Software Communication Software Display Software Streaming In the tab Software Display the measuring unit and scaling factor for the display of the meas ured values in the software IP Measurement 1 can be programmed It is also possible to enable or disable user warnings and informa tion dialogs Figure 20 Software Display 9 8 4 Software Streaming The Streaming tab offers the possibility to con tinuously record the parameters of GC IP201B such as corrected and uncorrected ADC val ues PHI or BQ The data can then be expor ted as measurement data or raw data as CSV or Matlab data using the export feature Tools gt E
34. turn counter Important characteristics Supply voltage 5VDC I O voltage digital 3 3VDC or 5VDC Temperature range 40 C 85 C Max interface clock SPI 25MHz 15MHz USB BiSS 10MHz SSI 5MHz If ordered with SPI option Interpolation rates 50 and 25 may only be used in counter mode in this case the ABZ signals are not valid Table 1 Overview features Document PR 46201 00 02 HB E IPE201 8 GEMAC Sensorik Messtechnik ASIC Design 3 Input Signals 3 Input Signals The input signals of the IPE201 are analog voltage signals sine cosine which have a sine shaped depend ency on the measured value position or angle The phase shift between those two analog voltages is 90 related to one period of the scale A third input signal serves as the reference point signal which determines the zero point of the scale All three input signals are processed as differential or single ended signals 0 5Vpp 8 o L Figure 2 Input signals single ended Figure 3 Differential input signals 3 1 Connection of a Measuring System difference signal Sin SinP SinN difference signal Cos CosP CosN Figure 4 Connection of a measuring system Document PR 46201 00 02 HB E IPE201 3 Input Signals 3 2 Description of the Input Amplifier The gain can be set through the CFG1 register also see data sheet of GC IP201B Configuration bits CF
35. verflow active Overflow of trigger holding register A trigger event was lost inactive No overflow of the trigger holding registers Max two trigger events will be stored Reference mark status active The reference mark of the scale was passed GC IP201B and scale work synchronously inactive The reference mark of the scale has not been passed yet or the relation between counter value and reference mark was lost due to an error Table 20 status LEDs 9 7 2 P Measurement 2 The quality of the sensor signals is diplayed in window IP Measurement 2 in form of LED bars according to the regulator parameters In addition the input amplitude on the A D converters are monitored so that an eventually occurring overload on the ADC can be displayed in the software IP Measurement 2 x Status Meas value Gain cosine 0 719 times Offset ine 12 08 mV COUTE Actual regulator Gain sine 0 723 times parameter Quality of 1 Offset sine 9 18 mV input signals Vector ADC cosine 319 043 A D converter 226 230 input voltage ADC sine Figure 12 Measurement Interpolation 2 Document PR 46201 00 02 HB E IPE201 25 Sensorik Messtechnik ASIC Design The meaning of the display elements is described in table 21 and 22 Name type Meaning Gain cosine LED bar Regulator value for signal amplitude Gain sine m Measured value Regulator value for amplification of the input signal Offset cosine LED bar Regu
36. xport Thus providing the base for a sub sequent analysis and processing of data and documentation Document PR 46201 00 02 HB E IPE201 mm Sensor Parameter Sensor Expert Software Communication Software Display Software Streaming Configuration Target directory c temp Max size 100000 Samples 6 87 MByte Fill level 0 Samples 0 00 MByte Reset stream Import Stream Close Figure 21 Software Streaming 28 Sensorik Messtechnik ASIC Design 9 9 Oscilloscope The software also provides the ability to show signals and parameters of the GC IP201B e g ADC values graphically The user can choose between the mode with time reference and XY display Note When using the BiSS interface only the position data single turn multi turn and error bits are read from the circuit during the measurement Therefore neither the indicators for input signal control in the main window are displayed in the BiSS mode nor can the signals in the oscilloscope be tracked i Oszilloskop ca 8 Darstellung Zeit XY Zeitbasis 15 Samples Div Y Anzeige J Legende Antialiasing Aktivieren Riicksetzen Datenspur 2 lt gt J Anzeigen Wert Cosinus ADC SI Minimum 2000 Auto I Maximum 1000 set Spur Position r cksetzen Modus Linien Punkte Farbe A Figure 22 Oscilloscope time graphic 8
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