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IPE1000-U

1. 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 three input signals are processed as differential or single ended signals Another version of the device with current inputs is also available IPE1000 I Fig 2 Input signals differential Fig 3 Input signals single ended 3 1 Connection of a Measuring System difference signal Sin SinP SinN Ui Peak to Peak 90 phase shift Har Peak to Peak difference signal Cos CosP Fig 4 GO Gain Input voltage for differential Input voltage Upit Input voltage range for maximum nominal input nominal Lon signal offset open closed 19 5 50m Vpp 80 MVpp 120 MVpp 10mV open open 16 25 60MVpp 96 MVpp 144 MVpp 12mV closed closed 13 45 72MV pp 145 MVpp 174 MVpp 14 5mV closed open 1 95 0 5Vpp 0 8Vpp 1 2Vpp 100mV at each of the inputs SINP SINN COSP COSN Default value See also chapter 8 1 GEMAC Phone 49 371 33 77 0 Title P Fax 49 371 33 77 272 User manual IPE1000 U Gesellschaft fiir Mikroelektronikanwendung Chemnitz mbH Internet www gemac chem nitz de Zwickauer Stra e 227 Email interpolation gemac chemnitz de Name of Document D 09116 Chemnitz Germany sales gemac chemnitz de 46500 HB 1 4 E IPE1000 U pdi 3 2 Signal Correction The input signals a
2. REFN RPH Von OV inactive inactive Fig 5 Ure typ 30mV URPH typ 30mV 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 Reference signal at the output active in each period inactive LJ 19 b c LJ 19 a b LJ18 open LJ18 open R11 placed R11 placed Gesellschaft f r GEMAC Phone 49 371 33 77 0 Title P Fax 49 371 33 77 272 User manual IPE1000 U Mikroelektronikanwendung Chemnitz mbH Internet www gemac chem nitz de Zwickauer Stra e 227 Email interpolation gemac chemnitz de Name of Document D 09116 Chemnitz Germany sales gemac chemnitz de 46500 HB 1 4 E IPE1000 U pdi 4 Output Signals 4 1 Output Signals RS422 The output signals are phase shifted square wave sequences known by incremental measuring transducers They can be counted in a single or quadruple way A synchronous reference pulse will be generated when the angle of 0 refer also to Fig 3 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 period Ei lt gt top Minimum interval time edge distance Fig 6 Output signals For generating a reference pulse at the outp
3. This also corresponds to the number of edge 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 1 4 of the interpolation rate per input signal period 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 GEMAC Phone 49 371 33 77 0 Title Ai Fax 49 371 33 77 272 User manual IPE1000 U en anwendung Chemnitz mo Internet www gemac chemnitz de Zwickauer StraBe 227 Email interpolation gemac chemnitz de Name of Document D 09116 Chemnitz Germany sales gemac chemnitz de 46500 HB 1 4 E IPE1000 U paf 5 1 Interval Time Maximum Input Frequency The interval time IT respectively the minimum edge distance tpp at the output signals can be adjusted using the same DIL Switch as for the interpolation rate This is possible from 1 fos to 128 fosc In binary steps The following table shows the maximum input frequencies under consideration of the interval times Clock frequency example fosz 22MHz f maxCNT 110kHz IR IT top Trias IR IT top Tia IR IT top E IR IT top ER 1 45ns 19k 1 45ns 25k 1 45ns 40k 1 45ns 50k 2 91ns 10k 4 181ns 5k 2 91ns 12 5k A 181ns 6 2k 2 91ns 20k A 181ns 10k 2 91ns 25k A 181ns 12 5k 1000 8 363ns 2 5k 800 8 363ns 3 1k 900 8 3
4. 63ns 5k 400 8 363ns 6 2k 16 727ns 16 727ns 16 727ns 16 727ns SC 32 1 4us 600 32 1 4us 775 32 1 4us 1 2k 32 1 4us 1 5k 64 2 9us 300 64 2 9us 380 64 2 9us 600 64 2 9us 775 128 5 8us 150 128 58us 190 128 5 8us 300 128 5 8us 380 1 45ns 80k 1 45ns 100k 1 45ns 110k 1 45ns 110k 2 91ns eg 2 91ns SE 2 91ns 2 91ns A 181ns 20k A 181ns 25k A 181ns 40k A 181ns 50k 250 8 363ns 200 8 363ns a 125 8 363ns a 100 8 363ns eg 16 727ns 5k 16 727ns 6 2k 16 727ns 10k 16 727ns 12 5k 32 1 4us 2 5k 32 1 4us 3 1k 32 1 4us 5k 32 1 4us 6 2k 64 29us 1 2k 64 29us 1 5k 64 2 9us 2 5k 64 2 9us 3 1k 128 5 8us 600 128 58us 775 128 5 8us 1 2k 128 58us 1 5k These values apply on condition of an adjusted 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 5 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 automatically set at 1024 f while the measuring system is in standstill or at smaller input frequencies Note that in the switching range to the automatic activation deactivation of this filter the A B output signals are not spe
5. ON ON ON ON ON OFF ON OFF ON ON OFF OFF OFF ON ON OFF ON OFF OFF OFF ON OFF OFF Interpolation rate 1000 800 500 400 250 200 125 100 7 GEMAC Fax Gesellschaft f r Mikroelektronikanwendung Chemnitz mbH Zwickauer StraBe 227 D 09116 Chemnitz Germany 49 371 33 77 0 Title 49 371 33 77 272 User manual IPE1000 U www gemac chemnitz de interpolation gemac chemnitz de sales gemac chemnitz de Name of Document 46500 HB 1 4 E IPE1000 U paf 7 5 Minimum Edge Distance at the Outputs IT2 IT ITO Interval time 1 fosz ON ON ON 1 ON ON OFF 2 ON OFF ON 4 ON OFF OFF 8 OFF ON ON 16 OFF ON OFF 32 OFF OFF ON 64 OFF OFF OFF 128 7 6 Service Connector SPI Pin No Signal SDO 2 SDI 3 SCLK 4 SCEN 5 NERR 6 NRES 7 OVDC 8 OVDC 9 5VDC 10 5VDC 7 7 LED LED 1 Power supply LED 2 Error LED see chapter4 LED 3 Valid LED see chapter4 LED 4 Reset GEMAC Phone 49 371 33 77 0 Title Ai Fax 49 371 33 77 272 User manual IPE1000 U en anwendung Chemnitz mo Internet www gemac chemnitz de Zwickauer StraBe 227 Email interpolation gemac chemnitz de Name of Document D 09116 Chemnitz Germany sales gemac chemnitz de 46500 HB 1 4 E IPE1000 U paf 8 Component Mounting Diagram KD L uii g 8 1 Soldering Jumper Solder Side er Es u aA C 35 LJ19 ea J LJ10 re E ole LJ N Jumper for ga
6. Programmable Interpolation Unit IPE1000 U User Manual Gesellschaft f r GEMAC Phone 49 371 33 77 0 Title Fax 49 371 33 77 272 User manual IPE1000 U Mikroelektronikanwendung Chemnitz mbH Internet www gemac chemnitz de Zwickauer StraBe 227 Email interpolation gemac chemnitz de Name of Document D 09116 Chemnitz Germany sales gemac chemnitz de 46500 HB 1 4 E IPE1000 U paf Revision History Revision Changing 16 12 2003 First version 22 06 2004 l Input connector pinning 02 07 2004 l Output signal description Soldering Jumper J10 11 03 2005 l Several changings 25 05 2005 l Dimensions added Copyright 2005 GEMAC mbH This document is subject to alterations without any notice We constantly work to further develop our products We reserve any changes of scope of delivery in shape equipment and technology to ourselves No claim can be the details illustrations and descriptions in this document Any kind of duplication reprocessing and translation of this document as well as excerpts from it requires the written permission of the GEMAC mbH All rights according to the copyright remain explicitly reserved for GEMAC mbH GEMAC Phone 49 371 33 77 0 Title 7 Fax 49 371 33 77 272 User manual IPE1000 U Gesellschaft fiir Mikroelektronikanwendung Chemnitz mbH Internet www gemac chem nitz de Zwickauer Stra e 227 Email interpolation gemac chemnitz de Name of Document D 09116 Chemnitz Germany s
7. Stra e 227 Email interpolation gemac chemnitz de Name of Document D 09116 Chemnitz Germany sales gemac chemnitz de 46500 HB 1 4 E IPE1000 U pdi 2 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 number 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 outputs 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 Ref Block diagram Fig 1 Block diagram GEMAC Phone 49 371 33 77 0 Title 7 Fax 49 371 33 77 272 User manual IPE1000 U Gesellschaft f r Mikroelektronikanwendung Chemnitz mbH Internet www gemac chem nitz de Zwickauer Stra e 227 Email interpolation gemac chemnitz de Name of Document D 09116 Chemnitz Germany sales gemac chemnitz de 46500 HB 1 4 E IPE1000 U pdi 3 Input Signals The input signals of the IPE1000 U are analogue voltages sine cosine which have a sine shaped dependency on the measured value position or angle The phase shift between those two analogue voltages is 90
8. ales gemac chemnitz de 46500 HB 1 4 E IPE1000 U pdi 1 Contents t CONTENDS ee 3 2 OVERVIEW EE 4 3 INPUT SIGNALS EEN 5 3 1 CONNECTION OF A MEASURING DGvSTEM 5 32 SIGNAL CORRECTION EEN 6 3 3 EISE lee BEEN 6 A OUTPUT SIGNALS EE 7 4 1 OUTPUT SIGNALS HA 7 4 2 m e eOe EoI CINT 7 5 JINTERFO AFON PATE EEN 7 5 1 INTERVAL TIME MAXIMUM INPUT EREOUENCN 8 5 2 GLITCH FILTER 2 ee ec ec cccccccecccceccnceccucacencaceneuceneateneaceneaceneaueneateneaueneauentaueneatentauentaneneaueneanentanentanentanes 8 CG a ING E 9 7 CONFIGURATION OF THE SWITCHES AND CONNECTORS u2u ua0a0ananananannnnnnnnnnnnnnnnnnnnnnanann 10 7 1 EXTRUDED ALUMINIUM HOUSING ID30 10 7 2 DIE CAST BOX HOUSING bebe 10 1 3 DIL SWITCH ccccceccccecccceccuceccucuccucuceneuueneuueeuueneaneaeaueneaueneauenecueeauenesuenesueesueneaneneeneneanenesueneaneunsneas 10 7 4 INTERPOLATIONHATE urran anora nAAL EEEn EROL EA ARALO EARE Rn ranan rrna nanna 10 7 5 MINIMUM EDGE DISTANCE AT THE OUTRUTS 11 7 6 SERVICE CONNECTOR GI 11 Z LED 11 8 COMPONENT MOUNTING DIAGRAM uuuunuuuunennnnnnnnnnnnnnnnnnnnnnnnnnnnnnunnnn un nun un nun un nun un nun un nun un nun ann nne 12 8 1 SOLDERING JUMPER SOLDER DIDE nuran REAAL EARLE ALARLAR Aranna anaana nnne 12 8 2 DIVEN IONS ee 13 GEMAC Phone 49 371 33 77 0 Title 7 Fax 49 371 33 77 272 User manual IPE1000 U Gesellschaft f r Mikroelektronikanwendung Chemnitz mbH Internet www gemac chemnitz de Zwickauer
9. ed proportional in each case LJ10 jumper for glitch filter description open glitch filter active closed glitch filter inactive For finding the jumper position please refer to chapter 8 GEMAC Phone 49 371 33 77 0 Title P Fax 49 371 33 77 272 User manual IPE1000 U Gesellschaft f r Mikroelektronikanwendung Chemnitz mbH Internet www gemac chemnitz de Zwickauer Stra e 227 Email interpolation gemac chemnitz de Name of Document D 09116 Chemnitz Germany sales gemac chemnitz de 46500 HB 1 4 E IPE1000 U paf 6 Specifications Recommended Operating Conditions MIN NOM MAX Unit Supply voltages 4 75 5 0 5 25 V Supply current 130 mA Operating case temperature 20 85 C MIN NOM MAX Unit Input frequency range SIINP SINN COSP COSN 400 kHz Phase offset between SIN and COS 90 Peak to peak input voltage SINN SINP COSN COSP 0 8 1 0 1 2 Vo Phase deviation 8 10 12 Oscillator frequenc 20 MHz Reset Specifications MIN NOM MAX Unit MIN NOM MAX Unit Input frequency range 0 fosz 96 kHz Automatic gain control range 20 related to nom Automatic offset control range 10 amplitude Minimum interval time A B Signals Ber 128 fosz ns Interpolation accuracy 0 6 1 Inc Propagation delay counter 90 fosz ns Propagation delay square wave outputs A B OREF 122 fosz ns Extruded aluminium die cast box housing housing Degree of protection depends on the housing IP20 IP65 Connector Sub D 15 pin Round plug 9 and 12
10. in adjustment Signal LJ11 GO LJ12 G1 GO G1 Gain close open 19 5 open open 16 2 close close 13 4 open close 1 95 default Jumper LJ10 for Description glitch filter activation Open glitch filter active closed glitch filter inactive GEMAC Phone 49 371 33 77 0 Title Ai Fax 49 371 33 77 272 User manual IPE1000 U en anwendung Chemnitz mo Internet www gemac chemnitz de Zwickauer StraBe 227 Email interpolation gemac chemnitz de Name of Document D 09116 Chemnitz Germany sales gemac chemnitz de 46500 HB 1 4 E IPE1000 U paf 8 2 Dimensions 99 00 45 00 All dimensions in mm Phone 49 371 33 77 0 Title Ai GEMAC Fax 49 371 33 77 272 User manual IPE1000 U EN wendung Chemnitz mo Internet www gemac chemnitz de Zwickauer StraBe 227 Email interpolation gemac chemnitz de Name of Document D 09116 Chemnitz Germany sales gemac chemnitz de 46500 HB 1 4 E IPE1000 U paf
11. pin Dimensions 55mm x 80mm x 20mm 100mm x 66mm x 50mm GEMAC Phone 49 371 33 77 0 Title Fax 49 371 33 77 272 User manual IPE1000 U Er Chemnitz mbH Internet www gemac chem nitz de Zwickauer StraBe 227 Email interpolation gemac chemnitz de Name of Document D 09116 Chemnitz Germany sales gemac chemnitz de 46500 HB 1 4 E IPE1000 U paf 7 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 7 1 Extruded Aluminium Housing IP20 Signal input Sub D 15 pin female Pin No Signal 1 SINP 2 OVDC 3 COSP 4 5VDC 5 6 7 REFN 8 9 SINN 10 OVDC 11 COSN 12 5VDC 13 14 REFP 15 Signal output Sub D 15 pin male Pin No Signal AP 2 OVDC l BP 4 5VDC Op 6 RE 8 NERR 9 AN 10 OVDC 11 BN 12 5VDC 13 ext trigger 14 RP 15 EN 7 2 Die Cast Box Housing IP65 Round plug 9 pin Signal input oO Round plug 12 pin Signal output Pin No Signal Pin No Signal 1 SINN 1 AN 2 SINP 2 AP 3 5VDC 3 BN 4 OVDC 4 BP 5 COSN 5 RN 6 COSP 6 du 7 REFN 7 8 REFP 8 9 PE 9 SC 10 OVDC 11 externa Trigger 12 7 3 DIL Switch Switch No Signal Name On Off 1 IRO See table 2 IR1 Interpolation rate Interpolation rate 3 IR2 4 ITO 5 IT 1 Minimum edge distance at the See table edge distance IT2 outputs 7 4 Interpolation Rate IR2 IR1 IRO OFF
12. re subject to the internal automatic gain and offset control of the IP1000 which is patented 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 0Vpp and an offset of 2 275V refering to Ground For achieving the best interpolation performance the gain offset controller needs approximately 20 signal 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 5 1 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 3 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 Vrpy and will be considered to be deactivated if this voltage becomes smaller than the negative hysteresis voltage Von i VRP REFP
13. ut 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 LED 3 looked status In the case of an error the red Error LED LED 2 is switched on and the green Valid LED is switched off An external reset pulse with a minimum length of 3us will restart the GC IP1000 To get the locked status again a further Sin Cos period is needed In case of selected interpolation rates 125 and 250 fold the assignment of A B and OREF can not be guaranteed 4 2 Error 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 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 measurements once again 5 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 purposes of this application is the number of increments into which one sine period of the input signal is divided

IPE1000-U

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