HP 5527A, Designer'S Manual

Page 1: ...s underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In stock Ready to ship TAR certified secure asset solutions Expert team I Trust guarantee I 100 satisfaction All trademarks brand names and brands appearing herein are the property of their respective...

Page 2: ...s hereby granted free of charge Any redistribution of this documentation or its derivates must include this copyright notice You may not sell this documentation or its derivations without written consent You may modify this documentation as necessary but you may not sell derivative works based on it You may include this documentation with the equipment hardware on which it is used for the purposes...

Page 3: ...d Cable Axis Board Servo Axis Board Prototyping Kit Automatic Compensation Board All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written perlnission of Hewlett Packard Company Printed in the United States of America O Copyright Hewlett Pa...

Page 4: ...defects resulting from improper or inadequate maintenance by Buyer Buyer suppliedsoftware or interfacing unauthorized modificationor misuse operation outsideof the environmental specifications for the product or improper site preparation or maintenance The design and implementation of any circuit used on this product is solely the responsibility of the buyer Hewlett PackardCompany does not warrant...

Page 5: ...zardous voltages Adjustments described in the manual are performed with power supplied to the instrument while protective covers are removed Energy available at many points may if contacted 1 Indicates earth igroundi terminal result in personal injury Capacitors inside the instrument may still be charged even if the instrument has been disconnected from its source of p 1 The WARNING sign denotes a...

Page 6: ...OT STARE INTO BEAM MAXIMUM OUTPUT 1 mw PULSE SPEC continuous wave LASER MEDIUM hellurn neon CLASS II LASER PRODUCT A 5 1 P I 111 rutz5 0 N F l AVOln EXP C i l l 7t Ba P I HP 5517A HP 5517B HP 5518A VRlllll x I 9 9 0 i I m 1 w r w Alp Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 7: ...pensation Board 4K 1 Subsection M Operation with HP Computers 4M l Important Notes on Installation and Accuracy 5 1 Installation and Optical Alignment 6 1 System Theory and Troubleshooting 7 1 Specifications 8 1 HP 5507NB Mnemonic Summary A 1 HP 5507NB Error Message Summary B I Syntax Diagrams and Numeric Representation Examples C I HP IB Basics D I Wavelength of Light Compensation E 1 Linear Ther...

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Page 9: ... 1 12 HP 10780B C F Receiver 1 13 HP 10751A B Air Sensor 1 13 HP 10757NB C Material Temperature Sensor 1 14 Optics 1 14 HP 10702A Linear Interferometer and Option 001 Windows and HP 10703A Retroreflector 1 15 HP 10722A Plane Mirror Converter 1 15 HP 10705A Single Beam Interferometer and HP 10704A Retroreflector 1 15 HP 10706A Plane Mirror Interferometer 1 16 HP 10706B High Stability Plane Mirror I...

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Page 11: ...cribes how to use the HP 5507A inputs and outputs for position sensing or control Topics included are HP IB automatic compensation axis board servo axis board prototyping kit cabling electronics interface and how to integrate the laser system into the overall servo loop SECTION IV CONTROLLING THE HP 5527A SYSTEM SOFTWARE The section covers how to control the HP 5527A system Major topics covered in...

Page 12: ...sation the above comparison yields wavelength infor mation which is used to update the system compensation number Three laser sources are available the HP 5517A HP 5517B and HP 5518A Laser Heads The HP 5527 system uses the HP 107XX series of optics The electronics are the HP 109XX series of boards and are housed in the HP 5507A Laser Position Transducer Electronics chassis These boards are also av...

Page 13: ...P 5517C changeswere made in the HP 5527A and its Model Number was changed to HP 5527B An HP 5527B can replace an HP 5527A but the reverse is not always true For making a measurement an HP 5517B lower frequency Laser Head can be used with an HP 5527A or an HP 55278 For making a measurement an HP 5517C higherfrequency Laser Head can be used with an HP 5527B but not with an HP 5527A TEST ADJUSTMENT A...

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Page 15: ...ic output options in addition to theposition output capability included in all systems environmentally compensated position data in mm inches or fraaional wavelengthcounts a The HP 10936NB Servo Axisboardprovidesservo outputs for closed loop systemcontrol Motor drive outputs include 1OV analog pulse width modulation or 16 bit digital b The HP 10934A A Quad B Axis board provides change in position ...

Page 16: ...sed HP IB CONTROLLABLE All configurationsof the HP 5507NB use HP IBto greatly simplify the task of data transfer and controlling the electronics BINARY INTERFACE Systems equippedwith the HP 10936NB can be controlledthrough a high speed 16 bit binary interface SERIAL INTERFACE Systems equipped with the HP 10934A can be controlled through an RS 232Cserial interface PARALLEL INTERFACE Systems equippe...

Page 17: ...d Service Offices is located at the back of the manual EASY INSTALLATION The Laser Position Transducer system is specifically designed for ease of installation by the OEM or end user It is modular and simple in concept Optical and electronic modules are small in size and ruggedly constructed for easy machine mounting Although the laser source generates some heat it can be located well away from th...

Page 18: ...ve assurance of continued performance to the published specifictions To assure prompt responsefor service assistance we maintain a worldwide network of HP service centers You are never far from qualified service assistance Equipment Description Laser Heads The wavelength of light from the laser head is used as the length standard for the HP 5527A transducer system The head generatesa coherent coll...

Page 19: ...uirements The HP 5517C has the highest reference frequency of the laser heads allowing fastest measurement velocities slew rates The HP 55178 reference frequency is lower than that of the HP 5517C but higher than that of the HP 5517A or the HP 5518A Figure 7 3 HP 557 7BICLaser Head HP 551M LASER HEAD The HP 5518A Laser Head Figure 7 4 is supplied with 2 MountingScrews M 8 x 1 25 x 25mm HP Part Num...

Page 20: ... consists of a mainchassis power supply an HP IB board and plug in slots for up to six function boards plus the HP 109468 Automatic Compensation board The HP IB board is the primary data channel between HP 5507NB function boards and an external controller It is designed to meet IEEE 488 IEEE 728 and IEEE P754 standards for general purpose instrument programming Function boards can be factory insta...

Page 21: ...e without being connected to an external control computer To facilitate board setup and monitoring two RS 232Cserial ports and an 8 bit parallel data channel are provided in addition to the HP 5507 s HP IB interface All three of these added interfaces have access to all boards installed in the HP 5507NB Application information for this board is presented in sections Ill and IV E of this manual Thi...

Page 22: ...HP 5527NB General Information Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 23: ...zero for cuttingoff servo drive selectable two s complementlsigned magnitudeoutputs synchronous sampling capability analog velocity automatic destination compensa tion and clocked position error outputs Section Illof this manual presentsexample applicationsof the axis board This board can be ordered separately to add another axis to a system or it can be integrated into an HP 5507NB at the factory...

Page 24: ...orithmsare implementedin firmware and a custom one may be downloaded The main output an amplifier drive signal has several formats 210 Volt analog pulse width modulated and 16 bit digital All servo parameters are programmable and real time data can be automatically collected to optimize servo performance Application information is contained in Section Ill and IV Fof this manual and in Application ...

Page 25: ...totypingboard and two cables to interface with an axis board Since all designs will use the same interfacecircuitry for the backplanecommunication the interfacecircuits are factory loaded on the prototyping board Input and output data are controllable by the HP 5507A B1sHP IB The interfacecircuits and the PROM code may be copied for mass producing any added custom circuitry Cable lengths and part ...

Page 26: ...nterruptedfor a predetermined length of time The HP 10946B has two operating modes Air Sensor and Wavelength Tracker In the Air Sensor mode the wavelength of light information is derived from the HP 10751NB Air Sensor information air temperature pressure and humidity In Wavelength Tracker mode wavelength of light information is updatedfrom the HP 10717A Wavelength Tracker information Additionally ...

Page 27: ...80B Receiver HP 10751NB Air Sensor The HP 10751NBAir Sensor Figure 7 7 7 measuresair pressure temperature and has a switch for select ing one of three values of ambient humidity low mid or high These measurements are sent to the HP 10946B Automatic CompensationBoard where they are used to compensate for the dependence of laser wavelength on the index of refraction of air The difference between the...

Page 28: ...is 25 metres 82 feet in length I I Figure 1 12 HP 10757AIBIC Material Temperature Sensor Optics The Measurement optics for the HP 5527A are the HP 107XX series of optics consisting of the following HP 10567A Dual Beam Beam Splitter HP 10700A 33 Beam Splitter HP 10701A 50 Beam Splitter HP 10702A Linear lnterferometer and Option 001 Windows HP 10703A Retroreflector HP 10704A Retroreflector HP 10705A...

Page 29: ...ctor the HP 10702A Linear Interferometer can be converted to an HP 10706A Plane Mirror Interferometer This configuration al lows measurements of axial displacement of a plane mirror I I Figure 1 14 UP 10722A Plane Mirror Converter HP 10705A SINGLE BEAM INTERFEROMETER AND HP 10704A RETROREFLECTOR Figure 1 15 In the single beam interferometer the outgoing and returning beam are superimposed on each ...

Page 30: ...A can be converted to the HP 10706B high stability configuration by retrofitting the A model with an HP 10723A High Stability Adapter See HP 10706B and HP 10723A descriptions below lnformation for the conversion is contained in Section 6 Figure 1 76 HP 70706A Plane Mirror lnterferometer H P 10706B HIGH STABILITY PLANE MIRROR INTERFEROMETER The HP 10706B High Stability Plane Mirror lnterferometer F...

Page 31: ...gh StabilityAdapter H P 10716A HlGH RESOLUTION INTERFEROMETER The HP 10716A High Resolution Interferometer Figure 7 79 provides twice the resolution of other HP plane mirror interferometers and offers very high thermal stability Measurement drift is typically 1 12 of that exhibited by a conventional plane mirror interferometer These features result in im proved accuracy repeatability and positioni...

Page 32: ...HP 70724A Plane Mirror Reflector HP 10715A DIFFERENTIAL INTERFEROMETER Figure 7 21 The HP 10715A permits differential measurements to be made between two plane mirrors the reference plane mirror and the measurement plane mirror A major benefit is the common optical path to both reference and measurement beams resulting in extremely high stability and resistance to spurious changes in the optical p...

Page 33: ...ction while the remaining two thirds continues through the optic The Model HP 10701A 50 Beam Splitter operates in a similar manner with a 50 ratio of beam split ting By using combinations of these two accessories the beam may be split into several paths to per form multiaxis measurements For example using a 33 and a 50 Beam Splitter one third of the laser beam intensity can be directed to each mea...

Page 34: ...D HP 10711A ADJUSTABLEMOUNTS Figure 1 24 The adjustable mounts provide a convenient means of mounting and aligning optical accessories Since both mounts allow angular adjustment in two directions the need for custom fixturing is mini mized Another convenient feature allows a component to be rotated about its optical centerline providing simple time saving installations The HP 10710A Adjustable Mou...

Page 35: ... laser system The HP 10717A Wavelength Tracker provides a higher degree of accuracy than does the HP 10751NB Air Sensor thereby improving the laser system measurement performance For a more detailed comparison of compensation methods see Compensation Method Comparison in Section V of this manual The HP 10717A Wavelength Tracker s output must be directed to an HP 107808 Receiver where a measurement...

Page 36: ...odel is 20 metres 65 feet Figure 1 26 HP 10790AIBICReceiver Cable HP 10793A B C LASER HEAD CABLE The HP 10793A B C Laser Head Cable Figure 1 27 is used to connect the HP 5517A HP 5517B or HP 5518A Laser Head to the HP 5507A The A model is 3 metres 10 feet in length the B model is 7 metres 23 feet and the C model is 20 metres 65 feet I I Figure 1 27 HP 10793AIBICLaser Head Cable Artisan Technology ...

Page 37: ... one laser head This instrument houses the laser source and its associated circuitry and also produces the reference signal There are four laser heads from which to choose The HP5517A and HP5518A are larger packages than the HP5517B or HP5517C Unlike the other laser heads HP5518A has a built in receiver The HP5518A is not recommended for multiaxis configurations II CHOOSE MEASUREMENTOPTICS FOR EAC...

Page 38: ...ber of HP 109328 Axis Boards HP 5507B Option 032 HP 10934A A Quad B Axis boards HP 55078 Option 0341 or HP 109368 Servo Axisboards HP 5507B Option 036 with the number of measurement axes If custom designed electronics such as servo control electronics are planned include an HP 10941A Prototyping Kit for each axis VI CHOOSE COMPONENTSTO IMPLEMENTAUTOMATIC COMPENSATION FUNCTION IN YOUR SYSTEM To det...

Page 39: ...Mount one required for beam splitter c HP 10717A Wavelength Tracker d HP 10780B Receiver one required e HP 10790NBlC Receiver Cable select one C Material Temperature Compensation The HP 10757NBlCMaterial Temperature Sensor is required to implement automatic material temperature compensation A maximum of two sensors can be used in each system The difference in the A B and C models is the cable leng...

Page 40: ...her Requirements 1 2 A Available HP 5507A 3 A Available HP 55070 X 0 006 A X 0 040 A X 0 030 A X 0 018 A X 0 136 A X 0 053 A X 0 007 A TOTAL HP 10932NB HP 5507NB Opt 032 X 0 003 A HP 10934A HP 5507NB Opt 034 X 0 045 A HP 10936NB HP 5507NB Opt 036 X 0 045 A HP 10946BfC HP 5507AfB Opt 046 X 0 009 A HP 10751NB X 0 053 A HP 10757NBfC X 0 007A Olher Requirements TOTAL 1 8 A Available HP 5507A 4 A Avail...

Page 41: ... 10833A B C D 1 2 4 and 0 5 Meters respectively 2 Serial Interface HP 24542M USIEuropean Modem Cable for connection to a computer or terminal that has a 25 pin female connector 3 16 bit Binary Interface If you use an HP 9000 Series 200 300 Controller order the HP 98622A GPlO InterfaceCardand specify Option 001 for an unterminatedcable Also order a50 pin connector with cover HP Part Number 1251 767...

Page 42: ... serial portion requires additional serial cable above Additional wires may be added by the user for customization SAFETY CLASSIFICATION The laser sources used in the Laser PositionTransducer system HP5501A HP 5517A HP 55178 HP 5517C and HP 5518A Laser Heads are Class II Laser Productsconformingto U S National Center for Devices and Radiological Health Regulations21 CFR 1040 10 and 1040 1 1 Artisa...

Page 43: ... 2 13 Single Beam Interferometer Laser Beam Path 2 13 HP 10706A Plane Mirror Interferometer 2 14 Plane Mirror Interferometer Laser Beam Path 2 14 HP 10706B High Stability Plane Mirror Interferometer 2 15 HP 10716A High Resolution Interferometer 2 16 HP 10715A Differential Interferometer 2 16 HP 10717A Wavelength Tracker 2 17 HP 10710AJ11A Adjustable Mounts 2 18 HP 10780B UF Receiver 2 18 Multiaxis...

Page 44: ...perature controlled environment 20 0 5 C typical system accuracy using air sensor automatic compensation is 1 5 ppm Using the HP 10717A Wavelength Tracker for compen sation the measurement repeatability is on the order of 0 2 ppm depending on environment The total sum of all axes measurement range is 40 metres 130 feet The equipment is ruggedly built to withstand industrial environments and requir...

Page 45: ...areness betweenaxes 21 potentialerrorsources inall which com bine together to define the final position achieved ETALON An etalon is an optical reference cavity When used with the Wavelength Tracker the etalon presents a fixed distanceto the differential interferometer FOLLOWING ERROR The following error is the distance between the actual position and the referencepositionduring a closed loopposit...

Page 46: ...ity of light tests In the basic Michelson interferometer shown in Figure 2 2 monochromatic light is directed at ahalf silvered mirror that acts a s a beamsplitter to pass half the beam to a movable mirror and bend the remainder 90 to a fixed mirror The reflected beams from the movable mirror and the fixed mirror recombine at the beam splitter With the mirrors exactly aligned and motionless an obse...

Page 47: ...of pure light i e a highly stable single wavelength Laser light is extremely well suited to this task Since a single photocell can not determine the direction of retroreflector movement someform of direction sensing electronics is required One commonly used method is to split the return beam into two portions delay one portion in phase by 90 and then detect each portion of the beam using a separat...

Page 48: ...wo frequencies would require ultra stablesourcesand periodic calibration Lasers however can be forced to oscillate attwo frequencies simultaneously simply by applying an axial magnetic field The two resultant frequencies are very close together but with opposite circular polarizations A polarizing beam splitter easily separates the two beams Both frequencies are extremely stable and do not require...

Page 49: ...bend partor all of the laser beam at right angles c A set of measurement optics HP 107XX series to selectively redirect the optical frequencies over the reference and measurement paths d A set of receivers one per measurement axis to detect the difference in optical frequencies and produce the measurement signal e Electronics to convert the measurement and reference signals into displacement data ...

Page 50: ...pendent on the particular components for limitations Accuracy Considerations Several factors external to the Laser PositionTransducer can affect the system accuracy These factors the measurement environment machine and material temperature and the optics installation and their interrelationship must be understood in order to predict the performance of the system Detailed descriptionsand methods of...

Page 51: ...horizontally polarized This will affect the direction sense For example if Fi is in the measurementpath F2 is in the reference path and the optics are movingaway from each other the fringe counts will be increasing Interchanging F i and F2 in this examplewill cause the fringe counts to decrease AUTOMATICTUNING To maintaina stable frequency output HP laser heads havevariable cavity lengths controll...

Page 52: ...ng a laser beam About halfway through the warm up period the READY LED blinks on and off to indicate that the laser is in the processof warming up When the head is read for use the READY LED remains on Any necessary retuningis performed automaticallyand is indicated by the READY LED flashing HP 5518A INDICATORS the HP 5518A has two LED indicatorson the rear paneland two LED indicators on the front...

Page 53: ...gn considerations determinewhich type of interferometer is optimum The choice of the interferometer for each axis usually specifies the reflector for that axis I TO INTERFEROMETER Directionsense is determined by which optical frequency Fl or F2 is in the measurementpath The Laser Headdeterminesthe polarization verticalor horizontal of F1 and F2 Butthe optics orientation determines which polarizati...

Page 54: ...NTERFEROMETER f x e d 10703A MEASURE n2 HETROREFLECTOR moving I 11 REFERENCE LASER LINEAR INTERFEROMETER RECEIVER f x e d MEASURE 3 10707A BEAM BENDERS I I Figure 2 6 Three Axis Machine Tool Installation Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 55: ... eventual loss of signal depending on the distance traveled If motion of the Linear lnterferometer is required the 10702A Option 001 should be used This provides special wedge windows which makes the outgoing beam parallel to the incoming beam This allows motion by either the 10703A Retroreflector or the 10702A Option 001 Linear Interferometer 1 I Figure 2 7 HP 10702A Linear lnterferometer with Op...

Page 56: ...erferometer cannot be moved A diagram of this interferometer is shown in Figure 2 9 SINGLE BEAM INTERFEROMETER LASER BEAM PATH A polarizing beam splitter reflects Fv to the reference cube corner and transmits FH to the HP 10704A Retroreflector Figure2 9 The return path is superimposed on the outgoing path Since both beams leaving the beam splitter pass through a quarter wave plate the returning po...

Page 57: ...irection and not in the X direction These constraints prevent two axis measurements from being made on the same part of the stage Further there will be some geometry error in the system if it is not perfectly rigid Since the measurement beam travels twice between the interferometer and the plane mirror the resolution of the measurement is twice that of the linear or single beam interferometers The...

Page 58: ...easurement stability thereby reducing the designer s error budget for HP equipment Existing system designs can be easily upgraded since the HP 107068 is an exact functional replacement for the HP 10706A and is the same size and weight Figure 2 12 shows the optical schematic for the HP 10706B High Stability Plane Mirror Inter ferometer Note that the usual reference beam cube corner has been replace...

Page 59: ...nInterferometer Optical Schematic H P 10715A DIFFERENTIAL INTERFEROMETER The HP 10715A Figure 2 74 permits differential measurements between two plane mirrors Since the optical path is common to both reference and measurements beams it is extremely tolerant of changes such as thermal expansion or variations of air characteristics When used in a positioning sys tem the small reference mirror can be...

Page 60: ... to make installation and alignment easier Operation is quite simple The etalon consisting of two mirrors separated by a thermally stable spacer presents a fixed distance to the differential interferometer The interferometer monitors the optical path length between these two mirrors Any change in the Wavelength i e changes in the air densitylindex of refraction within the etalon cavity causes an o...

Page 61: ...are used to con vert the Doppler component of the laser beam into a measurement signal for the electronics The HP 10780B contains optics a photodetector and a preamplifier Power requirements range between 2 0 and 2 7 watts from an external I5 Volt source The HP 10780B s sensitivity is factory set at 5 0 pW but can be set to its maximum of 1 5 pW by performing the Receiver Alignment and Gain Adjust...

Page 62: ...eam splitterscan be introduced alongwith correspond ing interferometers reflectors and receivers to allow up to four axes nY AXIS RETROREFLECTOR I I Y AXlS INTERFEROMETER M 50 4 Y AXlS MEASUREMENT SICINAL TO ELECTRONICS RECEIVER I I L I X AXIS MEASUREMENT SIGNAL TO ELECTRONICS MMS B M I L I Figure 2 7 6 Multiaxis Measurement System L r r 1 LASER NOTE 1 W BEAM SPLITTER X AXIS X AXIS INTERFEROMETER ...

Page 63: ...n and position error signals Connectors located on boththe top edge of each axis boardand the HP 5507NB rear panel allow internal and external access to thesesignals for connection to other electronics servo loop data capture etc Each board in the HP 5507NB backplane is individually programmed and may be operated independently of the others For example different axis boards in the backplane may be...

Page 64: ...l Temperature Sensor The Automatic Compensationboardcan also receiveasignal from an HP 10780BlUF Receiverinstalled on the HP 10717A Wavelength Tracker axis It uses this signal and the referencesignal generated by the system laser head to track wavelength changes The result of this operation is combined with material temperature sensor information and used to updatethe Wavelength Tracking Compensat...

Page 65: ...nal computer It provides two RS 232C serial ports and an 8 bit parallel port for the HP 5507NB Laser PositionTransducer It stores its setup information in non volatile storage for operation without a permanent connection to a control computer Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 66: ...6d Setup Enable 3 16d Serial A Baud Rate 3 16d Voltage SelectJumper 3 16d Rear Panel Connector 3 16e Rear Panel Hardware Inputs Outputs 3 16e External Power and Ground 3 16e Start and Stop 3 16e Error Reset 3 16f Axis Initialize 3 16f Preset Enable 3 16f Compensation Update 3 16g ExternalSamples 3 16g Mark Input 3 16g PulseIQuadrature Outputs 3 16g Status Outputs 3 16g Serial Ports A and B 3 16h 8...

Page 67: ...able 3 28 HP IB Cables 3 28 Servo System Cabling 3 28 10 Volt Reference BNC Connector 1 3 29 0 5 Volt Reference BNC Connector 2 3 29 Material Temperature Sensor Connector 3 6 3 29 Air Sensor Connector 4 3 29 AUX Channel Input BNC Connector 5 3 29 Receiver Connector 7 3 29 Electronics Interface Examples 3 30 Analog Servo Controller 3 30 Digital Servo Controller 3 32 Artisan Technology Group Quality...

Page 68: ...nnectors CABLING Describesthe cables requiredand their part numbers Connectionto servo systems is also covered ELECTRONICS INTERFACEEXAMPLES Givesthe details of digital system interconnections and analogservo loop interconnections Figure 3 7shows the location of all rear panel connectors for a four axis HP 5507NB The enclosed color coded stickers are providedto label all cables and connectorsfor e...

Page 69: ...PUT AND AND MISCELLANEOUS AND MISCELLANEOUS BINARY BINARY CONTROL CONTROL INTERFACE INTERFACE W O l E l SERVO AXIS BOARDS f A 3 X AXIS Y AXIS Z AXIS W AXIS HP IP RECEIVER RECEIVER RECEIVER RECEIVER INTERFACE INPUT INPUT INPUT INPUT 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000...

Page 70: ...ON BOARD ASSIGNMENT 0000 K Reserved for future use 0001 L Reserved for future use 0010 M Reserved for future use 0011 N Reserved for future use 0100tt 0 Prototypingboard 0101 P Prototypingboard 0110 Q Prototypingboard 0111 R Prototypingboard 1000 S Compensation Axis or Servo Axis board 1001 T Compensation Axis or Servo Axis board 1010 U compensation Axis or Servo Axisboard 10lltt V Compensation Ax...

Page 71: ...ceptor Handshake capability T2 Talker Serial Poll no Talk Only TEO No ExtendedAddress Talker L2 Listener no Listen Only L E O No ExtendedAddress Listener SR1 Serial Poll capability R L O No Remote Local capability PPO No Parallel Poll capability DC1 Device Clear Selected Device Clear DTI Device Trigger capability C O No Controller capability IEEE 728 STANDARDS The HP 5507A is compatible with the f...

Page 72: ...8 Dl04 Dl07 Dl03 Dl06 Dl02 Dl05 Dl01 CONNECTOR A Logic Levels The Hewlett Packard Interface Bus logic levels are TTL compatible i e the true 1 state is 0 0 Vdc and the false 0 state is 2 5 Vdc to 5 0 Vdc Mating Connector HP 1251 0293 Amphenol 57 30240 Mating Cables Available HP 10833A 1 O metre 3 feet HP 108338 2 0 metres 6feet HP 10833C 4 0 metres 12 feet HP 108330 0 5 metre I 1 5 feet Figure 3 2...

Page 73: ...a device with the capability to uniquely identify itself if it requires service and the controller is requesting a response Provides a device with the capability to be cleared initialized to a predefined state Provides a device with the capability to have its basic operation initiated by the talker on the bus Provides a device with the capability to send addresses universal commands and addressed ...

Page 74: ...I If the Error LED is on but the Talk Listen and SRQ LEDs are off one of the function boards is not working The faulty board may be pinpointed by sending CNFG to the HP 5507A over HP IB and reading out the resulting configuration string or by removingthe top cover and checkingthe self test indicator LEDs on each board If any are on or flashing or if any never flash during the self test that partic...

Page 75: ...xx I Ixxxxx I I I I I I I I I MSB LSB 22 21 V ADDRESS X TEST 00 I 1 Figure 3 4 Axis Board Address Switches The additional switches are used to enter various service modes and must be in the off zero position for normal operation Basic Operation The axis board consists of the following four main functional blocks Resolution Extension IC Counter Subtractor IC Microprocessor Mailbox The measurement s...

Page 76: ... true signal VIEWED FROM REAR PANEL ANALOG GROUND 50 25 GROUND ANALOG VELOCITY 49 24 ERROR k0l D GROUND 48 23 GROUND EXTERNALSAMPLE 47 n POSITIONRESET GROUND 46 21 GROUND DRIVE ENABLE IN 46 20 DRIVE ENABLE OUT GROUND 44 19 GROUND POSITION NULL 43 18 ERROR CLOCK GROUND 42 17 GROUND POSITION ERROR 824 41 16 POSITION ERROR 8231 POSITION ERROR 825 40 15 POSITION ERROR 8221 POSITION ERROR 8261 39 14 PO...

Page 77: ...Drive Enable Out within 15 nanosecondsand the Position Error outputs will be zero within 1 microsecond provided Error Hold is not asserted Figure 3 7 Drive Enable In and Drive Enable Out Timing Diagram DRIVE ENABLE IN ERROR HOLD When pulled low this negative true line freezes the Position Error outputs Maximum response time is 750 nanoseconds one Error Clock period for freezing the outputs and 1 4...

Page 78: ...s see Figure 3 9 of temporal accuracy The hardware Position Error outputs are not affected by this sampling mode only the software POS position output The External Sample input also flags the HP IB board that asample operation has occurred and that data may be fetched This flag is used when the HP IBboard is put in thesample handshaking mode with the HSON mnemonic See Section IV for more informati...

Page 79: ...824 41 16 POSITION ERROR 823 POSITION E R R O R 825 40 16 POSITION ERROR 822 POSITION E R R O R 826 38 14 POSITION E R R O R 821 POSITION E R R O R 8271 38 13 POSITION E R R O R 820 POSITION E R R O R 8281 37 12 POSITION E R R O R 818 POSITION E R R O R 8281 36 11 POSITION E R R O R 818 POSITION E R R O R 830 35 10 POSITION E R R O R 817 POSITION E R R O R SIGN 34 8 POSITION E R R O R 8161 POSITIO...

Page 80: ...ion to this protection it is good practice to also use mechanical limit switches The following conditions force Drive Enable Out false high a Power up initialization or system BOOT command b An HP IB Drive Off DRO command MIN MAX MIN MAX MIN MAX c A measurement error on this axis d Position counter over underflow error on this axis e If in Error Mode 1 EMI any other system or programming error f T...

Page 81: ...on Position Null can drive up to 8 LSTTL loads ERROR BITS REAR X NULL 1 NULL x NULL 1 CONNECTOR ERROR CLOCK 1 POSITION NULL Figure 3 14 Position Null Timing Diagram POSITION E R R O R The Position Error output lines give a 32 bit sign magnitudeor two s complement representation of the difference between the position counter and the destination register updated at the Error Clock rate 1 5to 2 0 MHz...

Page 82: ... are unaffected This feature matches the HP 5507A outputs to most servo systems seeexample in Figure 3 28 Figure 3 15 graphically illustrates this operation A POSITION ERROR OUTPUTS I BITS 0 THROUGH 11 1 PLUS SIGN 819 MICROINCHES PLANE MIRROR OPTlCSl Solid line corresponds to axis board programmed for CLP 12 t Dotted line is how selected bits would behave without clipping programmed Figure 3 15 Po...

Page 83: ...ng in no Error Hold capability and less delay of the Position Error data oneless Error Clock cycle relative to the Position Null and Drive Enable lines ERROR CLOCK This signal is the same as the Error Clock signal on the rear panel connector DRIVE ENABLE IN AND OUT These signals are identical to those on the rear panel connector POSITION NULL OUTPUT This signal is identical to the one on the rear ...

Page 84: ...ND POSITION RESET GROUND DESTINATION WRITE TCP SMG GROUND POSITION NULL GROUND DRIVE ENABLE IN GROUND EXTERNAL SAMPLE GROUND ANALOG VELOCITY ANALOG GROUND Figure 3 75a HP 70932AIB Inter CardConnector Pinouts DESTINATION WRITE OUTPUT The DestinationWrite Output is a decoded write pulsewhich strobes a new destination value into the Position Error subtractor It is an active lowoutput approximately 26...

Page 85: ...parallel to the HP 5507NB Any of these interfaces may be used at any time to set or request any informationfrom any function board installed in the HP 5507NB Basic Operation Figure 3 15b is a simplified block diagramof the HP 10934A A Quad B Axis Board The A Quad B Axis Board consists of the following six main functional blocks Axis Circuits Data Conversion Pulse Generation Backplane Interface Mic...

Page 86: ...es in the upper left corner of the board set the board s backplaneaddress test mode setup mode and default data ratefor serial port A a s listed in Table 3 3 thelisted switch functions and numbers correspond to the same switch functions as depicted in Figure 4E 7 of Section 4E Moving a switch lever to the OPEN position away from the circuit board corresponds with a logic 1 and selects the specifie...

Page 87: ...d Return the setup enable switch to the disable 0 position after programmingthe setup parameters and issuingthe SAV command alsosee TST 254 in section 4E SerialA Baud Rate These two switches set the baud rate for serial port A duringsetup only After setup Setup Enableswitch returnedto the disable position the serial port A baud rate is determined by the data stored in EEPROM To be effective these ...

Page 88: ... sink 50 mA maintainingthe output voltage to within 1V of externalground Refer to the 1 1 0schematic on page 3 16k External Power and Ground These two inputs provide power and ground for the optically isolated signals Current is drawn from the power signal when one or more of the controllstatus signals is low The ground signal is connectedto the emitter of the open collector output opto isolators ...

Page 89: ...1 Reserved YrPCP_UI Figure 3 7 5c HP 70934A Rear PanelConnector Pinout CAUTION Do NOT plug cables wired for this board into ANY other 109xx boards Pinouts for each board in the HP 5507 are incompatible with cables for other boards Connectingthe cables incorrectly may cause permanent damage to the HP 70934A board as well as to external equipment Error Reset Activating this negative true input is eq...

Page 90: ...iven by a 9638 driver IC Figure 3 75d shows the timing relationship betweenthe MARK IN input and MARKER output MARK IN MARKER I Figure 3 75d MARK IN to MARKER and A Quad B Timing PulseIQuadratureOutputs These differential output signals indicate how far the optics have moved in the programmed units They are driven by a standard differential driver 9638 and are not optically isolated When the board...

Page 91: ...onflicts maximum is sixteen HP 10934A boards Each line is terminated by a 10k ohm pull up resistor The ACK line should be terminated with 220 ohm pull up and 330 ohm pull down resistors The data lines may also require termination dependingon cable length The pull down resistors should be at least 50 greater resistance than the pull up resistorswith a minimum pull up value calculated as follows 500...

Page 92: ...free to initiate another transfer a b c d e f g h i j k I I I I l l I I I I I I I I I I I I I I I REQ I I I I I ACK I I I I I I I I I I I I I I I I I I I I I I I I I DIR I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I t 1 I I I I ADDRESS I I I I I I I I I I I I I I l l I I I I DATATO BUSSLAVES I I I I I I I I I l l I I I I DATA FROM BUSSLAVES I I I I I I I I I I I I I I I Figure 3 15...

Page 93: ...IAL B RTS SERIAL PORT INPUTS SERIALA RX SERIAL B RX SERIAL B CTS DIFFERENTIALOUTPUTS PULSE PULSE y OPT0 ISOLATEDINPUTSAND OUTPUTS ISOLATED INPUTS x9 START SYSTEM RESET MARK IN STOP AXIS IN IALIZE PRESET ENABLE COMP UPDATE X RAW SAMPLE X MULT SAMPLE I N 5V Out 1 Amp Fuse READY AXIS ERROR SYSTEM ERROR EXT GND PS2502 3 w i u c r Figure 3 75g HP 70934A 110Schematic D i a g r a m Artisan Technology Gro...

Page 94: ...quipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentation Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate representative or authorized distributor for any manufacturer listed herein We re here to make your life easier How...