User Manual
Contents
1. e e cce 7 2 1 Connection of a Measuring System rss 7 2 2 Signal COMO m ah Ho nn Da 8 2 3 Cie EHI 8 SDO IDORO EGE en Ee iai euk Ea a a EE AE EN darte 10 3 1 Output SignalsRS422 u a nee dd eine 10 KR Ee E 10 Ke Blue rie NEE 11 4 1 Interval Time Maximum Input Frequency rss 11 4 2 Glite dcm 12 Ee ee EE 13 6 Configuration of the Switches and Connectors ra 14 6 1 Extruded Aluminium Housing IP20 ss 14 6 2 Die cast Box Housing IPOS u ne ee han 14 6 3 DIL SWIICH u ea ae aaa 15 6 4 Interpolation EEA 15 6 5 Minimum Edge Distance at the Outputs rrua 15 6 6 Senice connector oP T 16 rap uq a a AE a SOR 16 7 Component Mounting Diagram uuu l l E E 17 7 1 CGomponent aide ed 17 ER e me 17 7 3 Soldering Jumper u rm 18 CA Gain adjustment 18 ESCCUM E H N 18 L6 Di EE 19 E NGOS us ahi cea nen nie 20 Document PR 46500 00 06 HB E IPE1000 U p GEMAC Sensorik Messtechnik ASIC Design List of Tables List of Tables Table 1 Gain See also GOGTSTTA ss 8 Table 2 Reference Signal internal rru 9 Table 3 Clock frequency example uuu ea einsehen 12 Table 4 Glitch filter refer to chapter Tru 13 Table 5 Specifications ET 13 Table 6 Signal input Sign2. wave outputs A B OREF Other characteristics Degree of protection depends on the housing Connector Dimensions Table 5 Specifications Document PR 46500 00 06 HB E IPE1000 U GEMAC Sensorik Messtechnik ASIC Design glitch filter active glitch filter inactive Min Nom 4 75 5 0 130 20 Min Nom 90 0 8 1 0 8 10 20 Min Nom 3 Min Nom Max Unit 5 25 V mA 80 C Max Unit 110 kHz 1 2 Vpp 12 y MHz Max Unit us Max Unit 100 125 200 250 400 500 800 1000 1 fosz 0 7 122 fosz Extruded aluminium housing IP20 SUB D 15 pin 55 mm x 80 mm x 20 mm 128 fosz ns Inc ns die cast box housing IP65 Round plug 9 und 12 pin 100 mm x 66 mm x 50 mm 13 GEMAC Sensorik Messtechnik ASIC Design 6 Configuration of the Switches and Connectors 6 Configuration of the Switches and Connectors It is necessary to open the unit for configuration This can be done by open the screws at both sides The cover can be lift off now 6 1 Extruded Aluminium Housing IP20 Signal input SUB D 15 pin female Signal output SUB D 15 pin male Pin No Signal Pin No Signal 1 SINP 1 AP 2 0 VDC 2 0 VDC 3 COSP 3 BP 4 5 VDC 4 5 VDC 5 5 EP 6 6 7 REFN 7 ZN 8 8 9 SINN 9 AN 10 0 VDC 10 0 VDC 11 COSN 11 BN 12 5 VDC 12 5 VDC 13 13 ext trigger 14 REFP 14 ZP 15 15 EN Table 6 Signal input Signal output IP20 6 2 Die cast Box Housing IP65
3. A GEMAC Sensorik Messtechnik ASIC Design User Manual IPE1000 U Version 1 6 Date 01 08 2010 GEMAC Gesellschaft f r Mikroelektronikanwendung Chemnitz mbH Telefon 49 371 3377 0 Zwickauer Stra e 227 Telefax 49 371 3377 272 09116 Chemnitz E Mail info gemac chemnitz de Germany Web www gemac chemnitz de GEMAC Sensorik Messtechnik ASIC Design Revision Overview Revision Overview Date CT 16 12 2003 1 0 First version 22 06 2004 Ja Input connector pinning 02 07 2004 1 2 Output signal description Soldering Jumper J10 21 01 2005 1 3 Input connector pinning 11 03 2005 1 4 Several changings 25 05 2005 dE Several changings 26 07 2011 1 6 Update Copyright 2011 GEMAC Gesellschaft f r 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 mbH All rights according to copyright law expressly reserved to GEMAC mbH Document PR 46500 00 06 HB E IPE1000 U 1 GEMAC Sensorik Messtechnik ASIC Design Table of Content Table of Content IZUGA e EEN Eee PERS aietara 6 PA ge le
4. LED Document PR 46500 00 06 HB E IPE1000 U 16 GEMAC Sensorik Messtechnik ASIC Design 7 Component Mounting Diagram 7 Component Mounting Diagram 7 1 Component side E R35 RN2 N e Figure 7 Component side 7 2 Soldering side 10200 C200 Figure 8 Soldering side Document PR 46500 00 06 HB E IPE1000 U 17 Sensorik Messtechnik ASIC Design 7 3 Soldering Jumper D EO LJ18 B 33 LJ19 E E LJ10 LJ1 BID LJ2 IBID LJ3 IBID LJ4 IBID LJ5 GEC LJ6 GET LJ7 GET LJ8 GET LJ9 GET Figure 9 Soldering jumper 7 4 Gain adjustment LJ 11 GO LJ 12 G1 Table 13 Gain adjustment 7 5 Gain close open 19 5 open open 16 2 close closed 13 4 open closed 1 95 default Table 14 Gain Document PR 46500 00_06_HB_E_IPE1000_U 18 GEMAC Sensorik Messtechnik ASIC Design 7 Component Mounting Diagram 7 6 Dimensions 10 00 s l 55 00 45 00 mial All dimensions in mm Figure 10 Dimensions IPE1000 Document PR 46500 00_06_HB_E_IPE1000_U 19 GEMAC Sensorik Messtechnik ASIC Design 8 Notes 8 Notes Document PR 46500 00 06 HB E IPE1000 U 20
5. Round plug 9 pin Signal input Round plug 12 pin Signal output Pin No Signal Pin No Signal 1 SINN 1 AN 2 SINP 2 AP 3 5 VDC 3 BN 4 0 VDC 4 BP 5 COSN 5 ZN 6 COSP 6 ZP 7 REFN 7 EN 8 REFP 8 ER 9 PE 9 5 VDC 10 0 VDC EA external trigger c N Table 7 Signal input Signal output IP65 Document PR 46500 00_06_HB_E_IPE1000_U 14 GEMAC Sensorik Messtechnik ASIC Design 6 Configuration of the Switches and Connectors 6 3 DIL Switch See table interpolation rate 2 IR1 Interpolation rate a Table 9 2 un See table edge dist E Minimum edge distance at ee lable edge distance the outputs Table 10 Table 8 DIL Switch 6 4 Interpolation Rate 1000 ON ON ON 800 OFF ON OFF 500 ON ON OFF 400 OFF OFF ON 250 ON OFF ON 200 OFF OFF OFF 125 ON OFF OFF 100 Table 9 Interpolation rate 6 5 Minimum Edge Distance at the Outputs ON ON ON 1 ON ON OFF 2 ON OFF ON 2 ON OFF OFF 8 OFF ON ON 16 OFF ON OFF 32 OFF OFF ON 64 OFF OFF OFF 128 Table 10 Minimum edge distance at the outputs Document PR 46500 00 06 HB E IPE1000 U 15 GEMAC Sensorik Messtechnik ASIC Design 6 Configuration of the Switches and Connectors 6 6 Service connector SPI SDO SDI SCLK SCEN NERR NRES GND GND VDD VDD GO o O Q A WOW N o Table 11 Service connector SPI 6 7 LED LED 1 Power supply LED 2 Error LED see chapter 4 LED 3 Looked LED see chapter 4 LED 4 Reset Table 12
6. al output IP20 rss 14 Table 7 Signal input Signal output IP65 rrura 14 Tabl amp 8 DIL SwWitch aa ee ee 15 Table 9 Interpolation E 15 Table 10 Minimum edge distance at the outputs rrura 15 Table 11 Service connector SPl iii ee a een 16 Table LAB zip A P 16 Table 13 Gain adjustment AAA 18 Table 14 Gal uu sa awam r en Qa a en ma Haan AR haare 18 Document PR 46500 00_06_HB_E_IPE1000_U 3 GEMAC Sensorik Messtechnik ASIC Design List of Figures List of Figures Figure 1 Block diagram an Rn 6 Figure 2 Input signals single ended rss 7 Figure 3 Input signals differential a 7 Figure 4 Connection of a measuring system rrura 7 Figure 5 Reference signal uuu u ee heben 9 Figure 6 Output Signals nee a Ezar 10 Figure e ale ee EE 17 Figure 8 Soldering side rss 17 Figure 9 Soldering Bt 18 Figure 10 Dimensions IPE1000 un E een 19 Document PR 46500 00 06 HB E IPE1000 U 4 GEMAC ensorik Messtechnik ASIC Design Terms Definitions and Abbreviations Terms Definitions and Abbreviations Document PR 46500 00 06 HB E IPE1000 U 5 1 Overview A Sensorik Messtechnik ASIC Design 1 Overview The programmable interpolation unit IPE1000 U has been designed for connection to incremental position and angle measuring systems with sine shaped output signals with a 90 phase shift It can be operated at a large nu
7. djusted phase between the input signals and a steady state of the internal gain offset controller Until this time the input frequency must not exceed 50 of the specified maximum frequency 4 2 Glitch Filter In order to avoid permanent toggling of the downstream counters as a result of analogue noise of the input signals while the measuring system is in standstill a digital filter can be optionally activated for the square wave outputs pin bit GFE In such a case the minimum edge distance at the output tpp is then automat ically set at 1024 fosc while the measuring system is in standstill or at smaller input frequencies Note Note that in the switching range to the automatic activation deactivation of this filter the A B output sig nals are not speed proportional in each case Document PR 46500 00 06 HB E IPE1000 U 12 4 Interpolation Rate open closed Table 4 Glitch filter refer to chapter 7 5 Specifications Characteristic values Recommended Operating Conditions Supply voltages Supply current Operating case temperature Analog Input Specifications Input frequency Phase offset between SIN and COS 100 kHz Peak to Peak input voltage SINN SINP COSN amp COSP Phase deviation Oscillator frequency Reset Specifications Reset impulse length Interpolation Interpolation Rates Minimum interval time A B Signals Interpolation accuracy Propagation delay square
8. ential 2 1 Connection of a Measuring System difference signal Sin SinP SinN 90 phase shift difference signal Cos CosP CosN Figure 4 Connection of a measuring system Document PR 46500 00 06 HB E IPE1000 U 7 GEMAC Sensorik Messtechnik ASIC Design Gain Input voltage for differential Input voltage Upiff Input voltage range for Maximum Signal nominal input 1 nominal Up offset 2 Input Signals offen zu 19 5 50 mVpp 100 mVpp 80 mVpp 120 mVpp 10 mV offen offen 16 25 60 mVpp 120 mVpp 96 mVpp 144 mVpp 12 mV zu zu 13 45 72 mVpp 145 mVpp 145 mVpp 174 mVpp 14 5 mV zu offen 1 95 0 5 Vpp 1 Vpp Default 0 8 Vpp 1 2 Vpp 100 mV 1 at each of the inputs SINP SINN COSP COSN Table 1 Gain See also chapter 7 3 2 2 Signal Correction The input signals are subject to the internal automatic gain and offset control of the IP1000 which is paten ted by GEMAC The amplitude controller is specified for a control range of 20 of nominal input voltage The offset of the external signals must not exceed a value of 10 of nominal input voltage The phase shift of the input signals can be adjusted statically by the internal potentiometer in a range of 6 or 12 via SPI There are two measuring points MP1 and MP2 for testing the signals The signal at each of those measuring points should have an amplitude of 2 0 Vee and an offset of 2 275 V refering to Ground For achieving the bes
9. mber of transducer systems working according to the most varied measuring principles With a maximum interpolation rate of 1000 the IPE1000 U is capable to split the input signal period into up to 1000 segments An RS422 interface for square wave output is available Proprietary automatic gain and offset control as well as the possibility of a analogue phase correction of the internal GC IP1000 ensure a high measuring precision under industrial conditions Block diagram Current to Voltage IPE with Interpolation Analog Input Converter Circuit RS422 Output optional Figure 1 Block diagram Document PR 46500 00 06 HB E IPE1000 U 6 GEMAC Sensorik Messtechnik ASIC Design 2 Input Signals 2 Input Signals The input signals of the IPE1000 U are analogue voltages sine cosine which have a sine shaped de pendency on the measured value position or angle The phase shift between those two analogue voltages is 90 related to one period of the scale A third input signal serves the zero or reference point of the scale as a reference signal for determining All the tree input signals are processed as differential or single ended signals Another version of the device with current inputs is also available IPE1000 1Vpp o 90 180 270 360 450 540 630 72 H ai EE zm EO EE En Figure 2 Input signals single ended Figure 3 Input signals differ
10. ment PR 46500 00 06 HB E IPE1000 U 9 GEMAC Sensorik Messtechnik ASIC Design 3 Output Signals 3 Output Signals 3 1 Output Signals RS422 The output signals are phase shifted square wave sequences known by incremental measuring trans ducers They can be counted in a single or quadruple way A synchronous reference pulse will be gener ated when the angle of 0 refer also to Figure 4 is passed through and when the analogue differential input 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 peri od OREF lt gt top Minimum interval time edge distance Figure 6 Output signals For generating a reference pulse at the output and the exact assignment of the signals A B and OREF it is necessary to pass a Sin Cos period for finding the zero degree angle That status will be signalized by a green Valid LED locked status In the case of an error the red Error LED is switched on and the green Valid LED is switched off An external reset pulse with a minimum length of 3 us will restart the GC IP200 To get the locked status again a further Sin Cos period is needed Note In case of selected interpolation rates 125 and 250 fold the assignment of A B and OREF can not be guaranteed 3 2 Er
11. ror Signal An error signal will be generated if the input signals are plausible no longer 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 Document PR 46500 00_06_HB_E_IPE1000_U 10 GEMAC Sensorik Messtechnik ASIC Design 3 Output Signals Note If the error signal was activated and or if one of the error bits was set in the result register the present measuring result and all the following results would have to 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 measure ments once again 4 Interpolation Rate The interpolation rate can be set at 1000 800 500 400 250 200 125 and 100 The Interpolation rate as defined for the purpose of this application is the number of increments into which one sine period of the in put signal is divided This also corresponds to the number of edges changes on the A B output signals per input signal period This means that the number of square wave periods at the A and B outputs totals 74 of the interpolation rate per input signal period Note In the case that a standard interpolation counter or quadrature decoder is connected to the A B outputs this has to work in quadruple evaluation mode in order to achieve the full interpolation rate 4 1 Inter
12. t interpolation performance the gain offset controller needs approximately 20 sig nal periods for reaching a steady state Until this time the input signal frequency must not exceed 50 of the specified maximum signal frequency please refer to chapter 4 1 Note For reaching the highest accuracy of the gain offset regulation the phase should adjust This will be very important if high interpolation rates are used 2 3 Reference Signal A third output of the measuring system typically called reference index point or zero point signal will be considered to be activated if the difference of the signals at the REFP and REFN pins becomes bigger than the positive hysteresis voltage VrpH and will be considered to be deactivated if this voltage becomes smaller than the negative hysteresis voltage Vrp Document PR 46500 00 06 HB E IPE1000 U 8 2 Input Signals GEMAC Sensorik Messtechnik ASIC Design respectively VRP REFP REFN ditz Ta inactive active inactive Figure 5 Reference signal VRPL typ 30 mV VRPH typ 30 mV Note If a sensor without reference signals is used defined levels on pins REFP and REFN are necessary to set the index point always active or always inactive Reference signal at the output active in each period Reference signal at the output inactive LJ 19 b c LJ 19 a b LJ 18 open LJ 18 open R11 placed R11 placed Table 2 Reference Signal internal Docu
13. val Time Maximum Input Frequency The interval time IT respectively the minimum edge distance tpr at the output signals can be adjusted us ing the same DIL Switch as for the interpolation rate This is possible from 1 fosc to 128 foscin binary steps Document PR 46500 00 06 HB E IPE1000 U 11 4 Interpolation Rate The following table shows the maximum input frequencies under consideration of the interval times fosz 22 MHz fmaxCNT 110 kHz GEMAC Sensorik Messtechnik ASIC Design R pup we tee IR i w wai lu tpp fmx IR IT top fmax 1 45ns 19k 1 45ns 25k 1 45ns 40k 1 45ns 50k 2 91ns 10k 2 91ns 125k 2 91ns 20k 2 ns 25k 4 181ns 5k 4 181ns 62k 4 181ns 10k 4 181ns 125k 8 363ns 25k 8 363ns 3 1k 8 363ns 5k 8 363ns 62k 1000 800 500 400 16 727ns 12k 16 727ns 15k 16 727ns 25k 16 727ns 34k 32 14us 600 32 14ys 775 32 14ys 12k 32 14ys 15k 64 29us 300 64 29ys 380 64 29ys 600 64 29ys 775 128 5 8us 150 128 58ys 190 128 58us 300 128 58us 380 1 45ns 80k 1 45ns 100k 1 45ns 110k 1 45ns 110k 2 91ns 40k 2 ons 50k 2 91ns 80k 2 91ns 100k 4 181ns 20k 4 181ns 25k 4 181ns 40k 4 181ns 50k 8 363ns 10k 8 363ns 125k 8 363ns 20k 8 363ns 25k 250 200 125 100 16 727ns 5k 16 727ns 62k 16 727ns 10k 16 727ns 12 5k 32 14ys 25k 32 14ys 34k 32 14ys 5k 32 14ys 62k 64 29us 12k 64 29ys 15k 64 GGe 25k 64 29ys 3 1k 128 5 8us 600 128 58us 775 128 5 8us 12k 128 GGe 15k Table 3 Clock frequency example Note These values apply on condition of an a
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