User's Manual ND 720, ND 760 (SW 246271-06)
Contents
1. Operating parameters are designated by the letter P anda number Example P11 The parameter designation is shown in the input field when you select it with the DATUM and ENT key in the X display The parameter setting is shown in the Y display Some operating parameters have separate values for each axis In the ND 760 these parameters are identified by an index of 1 to 3 and in the ND 720 by an index of one to two Example P12 1 scaling factor X axis P12 2 scaling factor Y axis P12 3 scaling factor Z axis ND 760 only The operating parameters are preset before the unit leaves the factory These factory default settings are indicated in the parameter list in boldface type Entering and changing operating parameters To access the operating parameters gt Press the SPEC FCT key gt Press the SPEC FCT key or 1 2 until PARAMETER appears in the X display gt Confirm your selection by pressing ENT To select protected operating parameters Pressthe 1 2 key to select the POO CODE user parameter gt Enter the code number 95148 gt Confirm with the ENT key To page through the operating parameters gt Page forwards by pressing the ENT key gt Page backwards by pressing the Ju key To change parameter settings gt Press the minus key or enter the value and confirm with the ENT key To correct an entry gt Press CL the old value reappears in the input line and becomes effective agai2. p HOLES ROW 4 Enter the number of holes per row e g 4 and confirm with ENT L y C HOLE SPACE Enter the spacing between holes in the row and confirm with ENT ag M J Y ancre 2 P Hoe DEPTH 1 800 Y Enter the angle e g 15 degrees and confirm with ENT Enter the hole depth e g 30 mm and confirm with ENT NUMBER ROW Enter the number of rows e g 3 and confirm with ENT Enter the spacing of the rows e g 20 and confirm with ENT Start the display of hole positions The distance to go mode is now active the A symbol lights The hole number appears briefly in the X axis Move to the individual hole positions by traversing to the display value zero Hole can be selected with the ENT key or with the 1 2 key Pressing the minus key shows the hole number again Y Exit the linear hole patterns function Working with a Scaling Factor Scaling factors enable you to increase or decrease the display values based on the actual traverse distance The display values are changed symmetrically about the datum Enter scaling factors separately for each axis in parameter P12 Parameter P11 activates and deactivates the scaling factors in all axes see Operating Parameters Example for enlarging a workpiece P12 1 3 5 P12 2
3. Part Il Installation and Specifications e Mounting the display unit on the machine e Description of operating parameters e Switching inputs switching outputs Part Operating Instructions Fundamentals 4 Switch On Traversing the Reference Marks 9 Datum Setting 10 Datum setting with the tool 11 Datum setting with the KT Edge Finder 13 Tool Compensation 20 Moving the Axes with Distance To Go 21 Bolt Hole Circles and Bolt Hole Circle Segments 23 Linear Hole Patterns 26 Working with a Scaling Factor 29 Error Messages 30 Part Il Installation and Specifications From Page 31 Fundamentals You can skip this chapter if you are already familiar with coordinate systems incremental and absolute dimensions nominal positions actual positions and distance to go Coordinate system The Cartesian coordinate system is used to describe the geometry of a workpiece The Cartesian coordinate system consists of three mutually perpendicular axes X Y and Z The point of intersection of these axes is called the datum or origin of the coordinate system Think of the axes as scales with divisions usually in millimeters which allow us to fix points in space referenced to the datum To determine positions on a workpiece the coordinate system is laid onto the workpiece The machine axes are parallel to the axes of the coordinate system The Z axis is normally the tool axis 1 Named in honor of the
4. SET lights i Select the X axis if not already selected and confirm with ENT The gt ll lt status symbol starts blinking 1ST POS X appears only briefly J Move edge finder toward workpiece edge until the indicator in the edge finder lights Back edge finder away L from the workpiece y 2ND POS X appears only briefly Move edge finder toward workpiece edge Q until the indicator in the edge finder lights SET MIDPOINT is shown briefly SET begins to blink Back the edge finder away from the workpiece The gt Il lt symbol begins to blink Y ago Set the position value for the midpoint between the edges e g 26 L or Exit the probing functions Probing the inside of a circle to set its center as datum To determine the circle center the tool must probe four points The points to be probed are located in the X Y plane Select a datum number see page 10 Select the special functions FCT or Select the probing function P Confirm the probing function PROBE CIRC 1 Select the circle probing function Us or a Arabia gt a Y Y PROBE CIRC 4TH POS Y appears only briefly Confirm Probe circle Move edge finder toward position until the indic
5. and PROBE CIRCLE functions are described on the following pages Probing a workpiece edge to find a datum The edge to be probed is parallel to the Y axis You can probe edges and surfaces as described below to set all the coordinates of a datum Select a datum number see page 10 Select the special functions Select probing functions Confirm probing function Confirm probe edge function X x Select the X axis if not already selected SET lights The lt status symbol starts blinking only briefly Move the edge finder to edge of workpiece until indicator in edge finder lights SET edge is shown briefly SET starts blinking The ND displays the position of the edge The I lt status symbol lights Back the edge finder away from the workpiece a 2 Assign a position value to this edge e g 52 Cu Exit the probing function i Probing workpiece edges to find a midpoint datum The edges to be probed run parallel to the Y axis Follow the procedure below for all midpoints between two edges Select a datum number see page 10 Select the special functions or Select the probing function PROBING Confirm the probing function PROBE EDGE of 5 Select the midpoint probing function PROBE MIDP Confirm the probe midpoint function
6. lt CR gt lt LF gt z 4563 305 R lt CR gt lt LF gt O O O O 6606666606 Probed axis lt PR gt lt CL gt other axes Colon Plus or minus sign 1 to 8 places before the decimal point Decimal point 1 to 8 decimal places Unit blank mm inches error message R radius display D diameter display Carriage Return Line Feed Measured value output over the contact and pulse inputs Measured value output over the contact input pin 12 on X10 and pulse input pin 14 on X10 can be triggered when these inputs are closed against 0 V The measured values are output over the TXD line of the RS 232 C interface A commercially available switch can be attached to the contact input This switch generates a signal for data output when it makes contact against O V The pulse input can be triggered with TTL logic devices for example SN74LSXX Delay times for data output Latch signal duration Pulse te gt 1 2 us Latch signal duration Contact te gt 7 ms Storage delay Pulse t 0 8 us Storage delay Contact ti 4 5 ms Data output after to 30 ms Regeneration time i320 Duration of data output in seconds inis 187 number of axes 11 number of blank lines 1 08 Baud rate Next possible signal for measured value output tE t1 t2 tp t3 s X10 Pin 12 O o o Pin 8 0V O X10 Pin 14 9 Pin 8 0V
7. Measured Value Output 51 Measured Value Output 52 Measured value output with CTRL B lf the control character STX CTRL B is received over the RS 232 C interface the measured value referenced to this time point will be sent over the interface CTRL B is received over the RXD line and the measured values are output over the TXD line Delay times for data output Storage delay t lt 0 5 ms Data output follows t2 to 30 ms Regeneration time after data output t3 gt Oms Duration of data output in seconds 187 number of axes 11 number of blank lines tp 1 08 Baud rate Next possible signal for measured value output te t1 t2 tp ta s BASIC program for measured value output 10 L 48 20 CLS 30 PRINT RS232 V 24 40 OPEN COM1 9600 E 7 AS 1 50 PRINT 1 CHRS 2 60 F INKEY lt gt THEN 130 70 C LOC 1 80 F C lt L THEN 60 90 X INPUTS L 1 100 LOCATE 9 1 110 PRINT X 120 GOTO 50 130 END CTRLB CTRLB Example of measured value output over the contact and pulse inputs or CTRL B E lt CR gt lt LE gt O Axis designation Q Equality sign X 58541 2504 R CR LF S Flus or minus sign dl pue pee O 1 to 8 places before the decimal amp Decimal point Y 10122 8660 R CR lt LF gt 1 to 8 places after the decimal Unit blank mm inches error message z 4 85903 13042 R lt cRs
8. Decimal places 2 3 4 5 6 7 8 1 User parameter Operating Parameters 37 Operating Parameters 38 P40 1 to P40 3 Select type of axis error compensation No axis error compensation CORR OFF Linear error compensation active multipoint error comp not active CORR LIN Multipoint error compensation active linear error compensation not active CORR ABS P45 1 to P45 3 Encoder monitoring Amplitude and frequency monitoring No monitoring ALARM ON ALARM OFF P48 1 to P48 3 Activate axis display Axis display active Not active AXIS ON AXIS OFF P41 1 to P41 3 Linear axis error compensation Input range um 99999 to 99999 Factory default setting 0 Example Displayed length Lg 620 000 mm Actual length as determined for example with the VM 101 from HEIDENHAIN La 619 876 mm Difference AL La La 124 um Compensation factor k k AL Lg 124 um 0 62 m 200 um m P43 1 to P43 3 Reference marks One reference mark SINGLE REF M Distance coded with 500 SP 500 SP Distance coded with 1000 SP 1000 SP Distance coded with 2000 SP 2000 SP Distance coded with 5000 SP 5000 SP SP signal period P49 1 to P49 3 Axis designation for measured value output An axis designation for the measured value output can be set through the number of the ASCII character The axis designation is output together with the measured value Input range 0 to 127 Measured value output disab
9. French mathematician and philosopher Ren Descartes 1596 to 1650 Y Z l N dy Datum or origin Datum setting The workpiece drawing is used as the basis for machining the workpiece To enable the dimensions in the drawing to be converted into traverse distances of machine axes X Y and Z each drawing dimension requires a datum or reference point on the workpiece since a position can only be defined in relationship to another position The workpiece drawing always indicates one absolute datum the datum for absolute dimensions However it may contain additional relative datums In the context of a numerical position display unit datum setting means bringing the workpiece and the tool into a defined position in relation to each other and then setting the axis displays to the value that corresponds to that position This establishes a fixed relationship between the actual positions of the axes and the displayed positions You can set 2 absolute datum points and store them in nonvolatile memory 250 250 12257 Absolutes datum Absolute workpiece positions Each position on the workpiece is uniquely defined by its absolute coordinates Example Absolute coordinates of position X 10 mm Y 5 mm Z 0 mm If you are working according to a workpiece drawing with absolute dimensions then you are moving the tool to the coor
10. GND Signal ground 8 Up OV 9 TXD Transmit data 10 DSR Data set ready 11 DTR Data terminal ready 12 Meas value output by contact 13 Switching signals 14 Meas value output by pulse 15 CHASSIS Housing GND RS 232 C V 24 Option In addition to a connection for the edge finder the X10 socket also provides an RS 232 C V 24 data interface The data interface on your ND display unit enables you to use a printer or a PC for transferring measured values or programs The interface is permanently set to the following data format 1 start bit 7 data bits Even parity bit 2 stop bits The baud rate is set with parameter P50 For connection to peripheral devices you can use either full wiring figure at upper right or simplified wiring below right Levels for TXD and RXD Logic levels Voltage levels ihe 3Vto 15V 0 3Vto 15V Levels for RTS CTS DSR and DTR Logic levels Voltage levels am lie 3Vto 15V D 3Vto 15V Full wiring ND X10 CHASSIS GND 15 Q e CHASSIS GND TXD RXD RTS CTS DSR SIGNAL GND DTR 9 3 4 5 10 7 2 e e DT SIGNAL TXD RXD RTS CTS DSR GND DTR Simplified wiring ND X10 CHASSIS GND 15 Q CHASSIS GND 0 TXD RXD RTS CTS DSR SIGNAL GND DTR 403 50 10 O 7 0 4 110 o e e A SIGNAL e TXD RXD RTS CTS DSR GND DTR
11. t9 M DELTA MODE NID AO NID Se 42 106 68305 Position display e Select coordinate axes ND 720 only two axes ND 720 only Xand Y Select axis specific operating parameters Status display Numerical input SET Datum setting REF blinking Ayo oy ic si Traverse the lan rr pe XJ a a Change the algebraic sign SET REF A u 12 inch SCLI9ie R R Call the last dialog reference points On continuously El G 3 In the parameter list Reference points cu HE Nn Es pen tE h t have been traversed serlace a la ot AA e z a a E change parameters A Distance to go display AY Confirm entry dhl Datum 1 or 2 e In the parameter list SET REF Inch Display in inches page forward SCL Scaling factor Call radius compensation of the current tool gt Il lt Probing an edge centerline R Radius diameter display R Radius compensation Select special functions Inthe list of special functions page forward Select datum 1 or 2 Page backward in the list of special functions Zero the selected axis Page backward in the list of if activated in P80 parameters Select parameters CL plus two digit number Cancel entry Reset the operating mode d About this manual This manual is divided into two parts Part Operating Instructions e Fundamentals of positioning e ND functions
12. 3 0 P11 ON This results in a larger workpiece as shown in the illustration at right D is the original size Q is with axis specific scaling factors Error Messages To erase error messages Message Cause and Effect After you have removed the cause of error V 24 TOO FAST Time interval between two commands Press the CL key too short SIGNAL X Encoder signal is too weak e g when an encoder is contaminated PROB ERROR Before touching off on the workpiece the tool must move by a distance of at least 0 2 mm DSR MISSING The connected device is not transmitting a DSR signal ERR REF X FORMAT ERR The spacing of the reference marks as defined in P43 is not the same as the actual spacing Data format baud rate etc do not match FRQ ERR X The input frequency for this encoder input is too high This can occur when the scale is moved too fast ERR MEMORY Check sum error Check the datum operating parameters and compensation values for multipoint axis error compen sation If the error recurs contact your service agency Part Il Installation and Specifications Items Supplied 32 Connections on Rear Panel 33 Mounting 34 Power connection 34 Connecting the Encoders 35 Operating Parameters 36 Entering changing operating parameters 36 Operating parameter list 37 Linear Encoders 40 Setting the display step 40 Disp
13. 4 0 000005 5 6 LS 303 303C 20 single 1000 0 01 1 2 0 0005 5 4 LS 603 603C 0 005 5 3 0 0002 2 4 Linear encoders 41 Linear Encoders 42 Parameter settings for HEIDENHAIN linear encoders with 11 pA signals continued Model 5 Reference Millimeters Inches 2 marks Display step Display mm step inch dii BES eee dg DE o 5 o 35 n o aa o aa P 31 P 43 P 33 P 38 P 33 P 38 LS 106 106C 20 single 1000 0 001 1 3 0 00005 5 5 LS 406 406C 0 0005 5 4 0 00002 2 5 LS 706 706C ST 1201 LB 302 302C 40 single 2000 0 005 5 3 0 0002 2 4 LIDA 10x 10xC 0 002 2 3 0 0001 1 4 0 001 1 3 0 00005 5 5 0 0005 5 4 0 00002 2 5 Recommended only for LB 302 0 0002 2 4 0 000001 1 5 0 0001 1 4 0 0000005 5 6 LB 301 301C 100 single 1000 0 005 5 3 0 0002 2 4 0 002 2 3 0 0001 1 4 0 001 1 3 0 00005 5 5 LIM 102 12800 single 0 1 1 1 0 005 5 3 0 05 5 2 0 002 2 3 Example Your encoder LS 303 C desired display step 0 005 mm 5 um parameter settings P01 mm P43 1 000 P32 4 P33 5 P38 3 Multipoint Axis Error Compensation q If you want to use the multipoint axis error compensation feature you must e activate this feature with operating parameter 40 see Operating Parameters Entries in the compensation value table e traverse the reference marks after switching on the display unit e enter a compensation valu
14. 55 suoleoyiseds 8 Lo o H 8 CO v S 0 0cL i olo SI a Alo N ES oo H H coo SIS oo o o 2 El E E ol gos S D En 6 Ed 6 E Un un c CSI ci leon pl Ez un Ln te ie nu 1 o x x sis E gt gt o c 2 o 2 1 o E L LLY wz a eL 9 cC 6 800 v0Z Z ZO vL z 0 98 Sg 0 6Z 800 F980 6 07082 800 F8ZZ 8 z 0F60z POLL Ser 800 FL ZOFLZ 0 6L OZ 30 99 HEIDENHAIN DR JOHANNES HEIDENHAIN GmbH Dr Johannes Heidenhain Straf e 5 83301 Traunreut Germany Y 49 8669 31 0 FAX 49 86 69 50 61 e mail info heidenhain de Service 49 86 69 31 1272 TNC Service 49 86 69 31 14 46 FAX 49 86 69 98 99 e mail service heidenhain de http www heidenhain de HEIDENHAIN G B Limited 200 London Road Burgess Hill West Sussex RH15 9RD Great Britain 01444 247711 01444 870024 341 696 22 SW246 271 06 15 9 2000 F amp W Printed in Germany Subject to change without notice
15. 760 Exit the special functions Moving the Axes with Distance To Go Display Normally the display shows the actual position of the tool However it is often more helpful to display the distance remaining to the nominal position the distance to go You can then position simply by moving the axis until the display value is zero You can enter the absolute coordinates in the distance to go display An active radius compensation will be considered Example Milling a shoulder with distance to go Select the special functions or Select delta mode DELTA MODE Confirm your selection the A symbol lights Y a 5 Select the axis enter the nominal value vag e g 20 mm select radius compensation R confirm with ENT Move the machine axis to zero D Select the axis enter the nominal value e g 30 mm select radius compensation F and confirm with ENT RZ Move the machine axis to zero 2 Select the axis enter the nominal value e g 50 mm select radius compensation R confirm with ENT Move the machine axis to zero 0 If appropriate switch off the distance to go display Bolt Hole Circles and Bolt Hole Circle Segments Your display unit enables you to quickly and easily produce bolt hole circles and bolt hole circle segments The required data is requested in the messag
16. RS 232 C V 24 Data Interface 47 Measured Value Output 48 Measured Value Output Measured values can be output over the RS 232 C V 24 interface This can be done with the following functions Probing with the KT Edge Finder Contact input on X10 Pulse input on X10 CTRL B via the RS 232 C interface Code letters with the measured value Parameter P97 allows you to select a code letter to be output together with the measured value when using Probe Contact or Pulse The decimal number you enter in the parameter is the ASCII character number in the ASCII table If you enter 0 no code letter will be output The code letter enables you to recognize whether the measured value was generated with CTRL B or with an external signal Axis designation for measured value output Parameter P49 allows you to enter an axis designation for each measured value that is output The decimal number you enter in the parameter is the ASCII character number in the ASCII table If you enter 0 no axis designation will be output Example of measured value output Parameter settings P49 1 P49 2 P49 3 P51 P97 Output E CR LF X CR LF Y CR LF Z CR LF 88 89 90 0 69 uyy X Y CZ no b E ank lines Measured value output when probing Parameter P96 allows you to activate measured value output when probing with the KT edge finder The edge finder is connected to D sub input X10 Whene
17. Z PL H LANGUAGE P Operating Parameters 39 Linear Encoders 40 Linear Encoders Selecting the display step with linear encoders To select a certain display step you must define the following operating parameters e Signal period P31 e Counting mode P33 Decimal places P38 Example Linear encoder with a signal period of 10 um Desired display step 0 000 5 mm Signal period P31 10 Counting mode P33 5 Decimal places P38 4 The following tables will help you select the parameters Parameter settings for HEIDENHAIN linear encoders with 11 pA signals Model Reference Millimeters Inches marks Display step Display amp mm step inch E o o n ac o ac P31 P43 P33 P38 P33 P38 CT 2 single 0 0005 5 4 0 00002 2 5 MT xx01 0 0002 2 4 0 00001 1 5 LIP 401A 401R single 0 0001 1 4 0 000005 5 6 0 00005 5 5 0 000002 2 6 Recommended only for LIP 401 0 00002 2 5 0 000001 1 6 0 00001 1 5 0 0000005 5 7 0 000005 5 6 0 0000002 2 7 LF 103 103C 4 single 5000 0 001 1 3 0 00005 5 5 LF 401 401C 0 0005 5 4 0 00002 2 5 LIF 101 101C 0 0002 2 4 0 00001 1 5 LIP 501 501C 0 0001 1 4 0 000005 5 6 LIP 101 single 0 00005 5 5 0 000002 2 6 Recommended only for LIP 101 0 00002 2 5 0 000001 1 6 0 00001 1 5 0 0000005 5 7 MT xx 10 single 0 0005 5 4 0 00002 2 5 0 0002 2 4 0 00001 1 5 0 0001 1
18. ator in the y edge finder lights CENTER X is shown briefly The SET status display ast POS X appears only briefly 23 starts to blink in the X axis J Move edge finder toward position D y until the indicator in the edge finder gt lights Back edge finder away from E a Enter position value for the workpiece X coordinate of circle center e g 26 w 4 CENTER Y is shown briefly The SET status display starts to blink in the Y 2ND POS X appears only briefly C axis cC Move edge finder toward position until the indicator in the edge finder lights Back edge finder away from workpiece 3RD POS Y appears only briefly Move edge finder toward position until the indicator in the edge finder lights Back edge finder away from workpiece Enter position value for the Y coordinate of circle center e g O a 4 gt dd Sg Exit the probing functions Tool Compensation You can enter the axis length and diameter of the current tool Y TOOL AXIS Set the tool axis TOOL AXIS cem Select the special functions Y 1 Select tool data TOOL DATA Confirm tool data input mode TOOL DIAM B O Enter the tool diameter e g 20 mm and confirm with ENT Y Enter the tool length e g 50 mm and confirm with ENT e 1 only with ND
19. dinates Relative workpiece positions A position can also be defined relative to the previous nominal position The datum for the dimension is then located at the previous nominal position Such coordinates are termed relative coordinates or chain dimensions Incremental coordinates are indicated by a preceding I Example Relative coordinate of position referenced to position IX 10 mm IY 10 mm If you are working according to a workpiece drawing with incremental dimensions then you are moving the tool by the dimensions Sign for incremental dimensioning A relative dimension has a positive sign when the axis is moved in the positive direction and a negative sign when it is moved in the negative direction Nominal position actual position and distance to go The position to which the tool is to move is called the nominal position The position at which the tool is actually located at any given moment is called the actual position D The distance from the nominal position to the actual position is called the distance to go B Sign for distance to go When you are using the distance to go display the nominal position becomes the relative datum display value 0 The distance to go is therefore negative when the tool moves in the positive axis direction and positive when it moves in the negative axis direction Position encoders The position encoders on the machin
20. e convert the movements of the machine axes into electrical signals The ND display unit evaluates these signals determines the actual position of the machine axes and displays the position as a numerical value If the power is interrupted the relationship between the machine axis positions and the calculated actual positions is lost The reference marks on the position encoders and the REF reference mark evaluation feature enable the ND to quickly reestablish this relationship again when the power is restored Reference marks The scales of the position encoders contain one or more reference marks When a reference mark is crossed over a signal is generated which identifies that position as a reference point scale datum machine datum When this reference mark is crossed over the ND s reference mark evaluation feature REF restores the relationship between axis slide positions and display values which you last defined by setting the datum If the linear encoders have distance coded reference marks you only need to move the machine axes a maximum of 20 mm to do this Position encoder Scale in Distance coded linear encoder reference marks Reference marks Switch On Traversing the Reference Marks Turn on power switch located on rear panel REF in status display starts blinking Confirm reference traverse mode REF remains on continuously Decimal points start blinkin
21. e field Each hole can be moved to by traversing to display value zero This requires entry of the following data Number of holes maximum 999 Circle center Circle radius e Starting angle for first hole Angle step between the holes only for circle segments Hole depth Example Number of holes 8 Coordinates of the center X 2 50 mm Y 50 mm Circle radius 20 mm Starting angle 30 degrees Hole depth Z 5mm Select the special functions Y ae CENTER X y 3 O Enter the X coordinate of circle center Select bolt hole circle e g 50 mm confirm with ENT a E M Y BOLT HOLE p um um CENTER ontirm your selection R A Enter the Y coordinate of circle center e g 50 mm confirm with ENT FULL CIRCLE e if req Se Confirm full circle a ee Enter the radius of the bolt hole circle e g 20 mm Confirm with ENT NUMB HOLES CC V CC y _ Bg Bg Enter the number of holes e g 8 Confirm with ENT es 4 START ANGLE E O Enter the start angle for the first hole e g 30 Confirm with ENT Cu Y HOLE DEPTH Enter the total hole depth e g 5 mm and confirm with ENT Start the display of the hole positions Y After the start the distance to go mode becomes 42 active the A sy
22. e table Your machine may have a nonlinear axis error due to factors such as axis sag or drivescrew errors Such deviations are usually measured with a comparator measuring system such as the HEIDENHAIN VM 101 You can for example determine the screw pitch error X F X for the X axis An axis can only be corrected in relation to one axis that has an error In each axis a compensation value table with 64 compensation values can be generated You can select the compensation table with the SPEC FCT key and the PARAMETERNCODE dialog To determine the compensation values e g with a VM 101 the REF display must be selected after selecting the compensation value table Select the REF R E The decimal point in the left display field indicates that the displayed values are referenced to the reference point If the decimal point blinks the reference marks have not been traversed Axis to be corrected X Y or Z Z axis only with ND 760 X Y or Z Z axis only with ND 760 Datum for the axis to be corrected Here you enter the point starting at which the axis with error is to be corrected This point indicates the absolute distance to the reference point E Spacing of the compensation points The spacing of the compensation points is expressed as 2 um Enter the value of the exponent x into the compensation value table Minimum input value Maximum input value Axis causing the er
23. enter as a datum see examples The stylus radius and length are automatically accounted for if they have been entered in parameters P25 and P26 respectively see Operating Parameters To call a datum you have set proceed as follows You have set two datum points in P70 e Select datum 1 or 2 You have set nine datum points in P70 Press the datum key d starts blinking C D Enter a datum number 1 to 9 Datum setting with the tool Example Working plane X Y Tool axis Z Tool radius R 5 mm Axis sequence X Y Z for datum setting R 5mm n Select a datum number see page 10 Select the special functions FCT Select probing function PROBING Confirm selection Y PROBE EDGE Confirm Probe edge gt a Select X axis if not already selected X SET lights The I lt symbol starts to blink Y PROBE X appears only briefly Touch workpiece edge D with the tool X position is captured SET edge is shown briefly SET starts blinking Retract tool from workpiece The I lt status symbol lights Enter position value for the datum Tool radius is automatically compensated Select the Y axis SET lights The I lt status symbol starts blinking 484 elo E Y appears only briefly T
24. for example 21 um equals 1 024 mm and confirm with ENT J Cu Gog 27 000 Compensation point no 1 is displayed Enter the associated compensation value e g 0 01 mm and confirm with ENT E uu P 28 024 N m A 2 M Enter all further compensation points If you press the minus key the unit will show the number of the current compensation point in the X display Direct selection of compensation points Press the minus key together with the number two digit of the desired compensation point y Y Deleting a compensation value table SPEC FCT Select the special functions Cu SPEC 1 Select parameter E o Ea 3 p PARAMETER Select the dialog for entering the code number SPEC CE Conclude entry CODE Qu v 00098 0009 Y Enter the code number 105296 and confirm with ENT axzs X Select the compensation value table d e g for the Z axis and delete the table Y DELETE Z Confirm with ENT or cancel with CL Z Conclude entry FCT ion t Axis Error Compensat ipoin Mult 45 Pin Layout of X10 46 Pin Layout of X10 for KT 130 Edge Finder and Data Interface Pin Signal Function 1 Internal shield 2 Standby 3 RXD Receive data 4 RTS Request to send 5 CTS Clear to send 6 Up 5V 7 SIGN
25. g E sequence Each axis display becomes active when its reference mark is crossed over p A Cross over the reference marks in all axes in any Crossing over the reference marks stores the most recently defined assignment of display values to axis slide positions for datum points 1 and 2 in nonvolatile memory Note that if you choose not to traverse the reference marks by clearing the dialog ENT CL with the CL key this relationship will be lost if the power is interrupted or when the unit is switched off Datum Setting att If you want to save the datum points in nonvolatile memory you must first cross over the reference marks Only after crossing over the reference marks can you set new datums or activate existing ones In P70 you can select e Two datum points The selected datum point is displayed via for 2 e Nine datum points The selected datum point is displayed in the lowest axis via d1 to d9 There are two ways to set datums Touch the workpiece with the tool and then set the desired datum see example You can also touch two edges and set the centerline between them as a datum The dimensions of the tool used for this are automatically accounted for see Tool Compensation Probe the workpiece with the edge finder and then set the desired datum You can also probe two edges and set the centerline between them as a datum or touch the inside of a circle and set the circle c
26. lay step signal period and subdivision 40 Compatible HEIDENHAIN linear encoders 41 Multipoint Axis Error Compensation 43 Pin Layout of X10 46 Data Interface RS 232 C V 24 47 Measured Value Output 48 Specifications 54 Dimensions of ND 720 ND 760 55 Part Il Installation and Specifications 31 Items Supplied ND 720 for 2 axes or ND 760 for 3 axes e Power connector Id Nr 257 811 01 User s Manual Optional Accessories Tilting base for housing bottom Id Nr 281 619 01 e KT 130 Edge Finder Id Nr 283 273 01 Connections on Rear Panel ID label Power switch Power input e Edge finder input e RS 232 C V 24 data interface at The interfaces X1 X2 X3 and X10 comply with the requirements for electrical separation according to EN 50178 A 1 B 6 RES Protective ground Encoder inputs X1 to X3 Rubber feet with M4 thread Connections on Rear Panel 33 Mounting ND 720 ND 760 To mount the display unit on a support use the M4 threaded holes in the rubber feet You can also mount the display unit on the optional tilting base Power Connection Power leads and Connect protective ground to Powersupply 100 Vac to 240 Vac 15 to 10 50 Hz to 60 Hz 2 Hz A voltage selector is not necessary Tilting base Support Connecting the Encoders Your display unit will accept all HEIDENHAIN linear encoders with sinusoidal
27. led 0 ASCII character from ASCII table 1 to 127 Default setting P49 1 88 P49 2 89 P49 3 90 P50 Baud rate 110 150 300 600 1200 2400 4800 9600 19 200 38 400 P44 1 to P44 3 Reference mark evaluation Evaluation No evaluation REF X ON REF X OFF P51 Line feeds for measured value output Input range 0 to 99 Default setting 1 1 User parameter P70 Number of datum points 2 datum points 2 DATUMS 9 datum points 9 DATUMS P80 Function of the CL key Set to zero with CL CL RESET No set to zero with CL CI eas OFF P81 Function of the R key The actual value is halved by the R key The actual value is not halved R 1 2 ON R 1 2 OFF P96 Measured value output for probing Measured value output active Measured value output not active PROBE ON PROBE OFF P97 Characters for measured values ASCII characters for designation of the measured values for output through probing contact or pulse Input range No ASCII character ASCII character from ASCII table 0 to 127 0 1 to 127 P98 Conversational language LANGUAGE D German English French Italian Dutch Spanish Danish Swedish Finnish Czech Polish Hungarian Portuguese 1 User parameter LANG LANG LANG LANG LANG LANG UAGE LANGUAGE UAGE LANGUAGE UAGE LANGUAGE UAGE LANGUAGE UAGE LANGUAGE UAGE GB E I NL E DK S FI C
28. lt LFs R r radius display D d diameter display distance to go display Carriage Return Line Feed 00 OQ eo Measured Value Output Specifications 54 Specifications Housing ND 720 ND 760 Bench top design cast metal housing Dimensions W H D 270 mm 172 mm 93 mm Oper temperature 0 to 45 C 32 to 113 F Storage temperature 20 to 70 C 4 to 158 F Encoder inputs For encoders with 7 to 16 uApp Grating period 2 4 10 20 40 100 200 um and 12 8 mm Reference mark evaluation for distance coded and single reference marks Weight Approx 2 3 kg 5 Ib Relative humidity Power supply lt 75 annua 9096 in rare 100 Vac to 240 Vac 15 to 1096 average cases 50 Hz to 60 Hz 2 Hz Powerconsumption 15 W Protection IP 40 as per IEC 529 Input frequency Max 100 kHz for 30 m 98 5 ft cable length Display step Adjustable see Linear Encoders Datums 2 nonvolatile Functions Tool radius compensation Distance to go display Probing functions Circular amp linear hole patterns Scaling factor Measured value output RS 232 V 24 Baud rates adjustable interface 110 150 300 600 1200 2400 4800 9600 19 200 38 400
29. mbol lights The hole number is shown briefly in the X axis The individual holes are reached by traversing to zero The holes can be selected with the ENT key or the 1 2 key The minus key shows the hole number again SPEC or Exit the bolt hole circle function 1 only with ND 760 Linear Hole Patterns The linear hole pattern feature allows you to easily create rows of holes to cover an area The required data are requested in the message field You can position to each hole by traversing to display value zero The following data are required e Coordinates of the first hole Number of holes per row maximum 999 e Spacing between holes Angle between the rows and the reference axis Hole depth Number of rows maximum 999 Spacing between rows Example Coordinates of the first hole X 20 mm Y 15mm Number of holes per row 4 Spacing between holes 16 mm Angle 15 degrees Hole depth Z 30 mm Number of rows 3 Spacing between rows 20 mm Select the special functions Select hole pattern Confirm linear hole pattern ast HOLE X ED A Enter the X coordinate of the first holes e g 20 and confirm with ENT y B00 Cu ast HOLE Y Enter the Y coordinate of the first holes e g 15 and confirm with ENT y 000 Y 1 only with ND 760 Y
30. n To exit the operating parameters gt Press the SPEC FCT or CL key List of operating parameters P00 CODE Enter code number 9 51 48 Change protected operating parameters 66 55 44 Display software version in the X axis Display date of release in the Y axis 10 52 96 Multipoint axis error compensation P1 Unit of measure Display in millimeters MM Display in inches INCH P3 1 to P3 3 Radius diameter display Display position value as radius RADIUS Display position value as diameter DIAMETER P11 Activate scaling factor 1 Active SCALING ON Not active SCALING OFF P12 1 to P12 3 Define scaling factor Enter a scaling factor separately for each axis Entry value gt 1 workpiece will grow Entry value 1 workpiece will remain the same size Entry value lt 1 workpiece will shrink Input range 0 100000 to 9 999999 Default setting 1 000000 P25 Stylus diameter Input range mm 0 000 to 999 999 Default setting 6 P26 Stylus length Input range mm 0 000 to 999 999 P30 1 to P30 3 Counting direction Positive counting direction with positive direction of traverse DIRECT POS Negative counting direction with positive direction of traverse DIRECT NEG P31 1 to P31 3 Signal period of the encoder Input range 0 00000001 to 99999 9999 um Default setting 20 um P33 1 to P33 3 Counting mode 0 1 2 3 4 5 6 7 8 9 0 2 4 6 8 0 5 P38 1 to P38 3
31. ouch workpiece edge Q with the tool Enter position value for the datum in the Y axis Tool radius is automatically compensated Select the Z axis SET lights The I lt status symbol starts blinking only briefly Touch the top of the workpiece with the tool V y P Z position is captured SET edge is shown briefly SET starts blinking Retract the tool from the workpiece L The I lt status symbol lights J Enter the position value for the datum in the Z axis y 8 Y position is captured SET edge is shown briefly SET starts blinking Retract tool from workpiece The I lt status symbol lights After setting the datum exit the probing functions y 1 only with ND 760 1 Datum setting with the KT Edge Finder The ND position display units provide the following probing functions PROBE EDGE Setting a workpiece edge as datum PROBE MIDPOINT Setting a midpoint between two workpiece edges as datum PROBE CIRCLE Setting the center of a circle as datum The probing functions are accessible in the SPEC FCT mode of operation Before using the edge finder you must enter the stylus diameter and length in parameters P25 and P26 respectively see Operating Parameters During all probing functions the ND position display unit accounts for the entered dimensions The PROBE EDGE PROBE MIDPOINT
32. output signals 7 to 16 App and distance coded or single reference marks Assignment of the encoder inputs Encoder input X1 is for the X axis Encoder input X2 is for the Y axis Encoder input X3 is for the Z axis ND 760 only Encoder monitoring system Your display unit features a monitoring system for checking the amplitude and frequency of the encoder signals If it detects a faulty signal one of the following error messages will be generated SIGNAL X FRO X Encoder monitoring can be activated with parameter P45 If you are using linear encoders with distance coded reference marks the encoder monitoring system also checks whether the spacing of the reference marks as defined in parameter P43 is the same as the actual spacing on the scales If it is not the following error message will be generated ERR REF X Connecting the Encoders 35 Operating Parameters 36 Operating Parameters Operating parameters allow you to modify the operating characteristics of your display unit and define the evaluation of the encoder signals Operating parameters that can be changed by the user are called user parameters and can be accessed with the SPEC FCT key and the dialog PARA METER user parameters are Identified as such in the parameter list The full range of parameters can only be accessed through the dialog CODE and by entering 95148
33. ror Do not change the datum point after measuring the axis error and before entering the axis error into the compensation table 6 0 064 mm 20 2 1048 576 mm 23 8388 608 mm Example 900 mm traverse and 15 compensation points results in 60 000 mm spacing between points Nearest power of two 2 um 65 536 mm Entry in compensation value table 16 Compensation value You enter the measured compensation value in millimeters for the displayed compensation point Compensation point O always has the value O and cannot be changed lon t Axis Error Compensat ipoin Mult 43 ion t Axis Error Compensat ipoin Mult 44 Selecting the compensation table entering an axis correction Select the special functions FCT Y Select the Parameter function if or ve by repeatedly pressing the 12 key P C PARAMETER Select dialog for entering the code number Enter code number 105296 and confirm with ENT Y AXIS X x Select axis to be corrected e g X Confirm with ENT y Enter the axis causing the error e g X screw pitch error and confirm with ENT y J DATUM x Enter the active datum for the error on 3 the axis to be corrected e g 27 mm and confirm with ENT Y SPACING x 00098 Enter the spacing of the compensation points on the axis to be corrected
34. ver the Probe Edge function is used your display unit outputs the position of the edge in the selected axis and the actual positions of the other axes over the TXD line of the RS 232 C V 24 interface Whenever the Probe Midpoint function is used your display unit outputs the calculated midpoint in the selected axis and the actual positions of the other axes Measured value output with CTRL B is disabled when a probing function Is active Delay times with data output Duration of the latch signal te 24 us Storage delay t lt 4 5 ms Data output after t2 lt 50 ms Regeneration time t3 20 Duration of data output in seconds _ 209 number of axes 11 number of blank lines Baud rate to 1 08 Next possible signal for measured value output tg t4 t2 tp ta s Measured Value Output 49 Measured Value Output 50 Examples of measured value output when probing Examp Examp e Probe edge X axis PR X 58541 2504 R lt CR gt lt LF gt Y 10122 8660 R lt cr gt lt LF gt Z 85903 3042 R lt cr gt lt uF gt e Probe midpoint X axis CcIL x 34761 2504 R lt CR gt lt LF gt Y 10122 8660 R lt CR gt lt LF gt Z 85903 3042 R CR lt LF gt e Probe circle CICIXx 234 786 R CR lt LF gt EGY 452 816 R
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