User`s Manual ND 720, ND 760 (SW AA00)
Contents
1. DELTA MODE NID 7A 42706 E ee NID a0 HEIDENHAIN Position display e Select coordinate axes ND 720 only two axes ND 720 only X and Y e Select axis specific operating parameters Status display SET Datum setting REF blinking Traverse the reference points On continuously Reference points have been traversed A Distance to go display i 2 Datum 1 or 2 Inch Display in inches SCL Scaling factor WEA II a a SET REF i 12 inch SCL gt lil R A i mr E Sh Se a LI SET REF u 12 inch SCL li R gt ll lt Probing an edge centerline R Radius diameter display R Radius compensation e Select datum 1 or 2 e Page backward in the list of special functions e Page backward in the list of parameters Numerical input e Change the algebraic sign e Call the last dialog e In the parameter list change parameters e Confirm entry e In the parameter list page forward Call radius compensation of the current tool e Select special functions e In the list of special functions page forward e Cancel entry e Reset the operating mode e Zero the selected axis if activated in P80 e Select parameters CL plus two digit number att This manual is for the ND display units with the Part Operating Instructions following software numbers or higher ND 720 for two axes AAO0O Fundamentals 4 id oo Switch On Traversing the Referenc2. 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 QD The distance from the nominal position to the actual position is called the distance to go 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 machine convert the movements of the machine axes into electrical signals The ND display unit evaluates these signals determines the actual position of
3. 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 FCT or Select delta mode DELTA MODE Confirm your selection the A symbol lights F Select the axis enter the nominal value Y Boer e g 20 mm select radius compensation R fem confirm with ENT Move the machine axis to zero Select the axis enter the nominal value e g 30 mm select radius compensation R and confirm with ENT Move the machine axis to zero Select the axis enter the nominal value e g 50 mm select radius compensation R confirm with ENT If appropriate switch off the distance to go display Bolt Hole Circles and Bolt 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 message field Each hole can be moved to by traversing to display value zero This requires entry of the following data e Number of holes maximum 999 e Circle center e Circle radius e Starting angle for f
4. 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 33 Operating Parameters 34 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 Operating parameters are designated by the letter P and a 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 opera
5. cable length Adjustable see Linear Encoders 2 nonvolatile Tool radius compensation Distance to go display Probing functions Circular amp linear hole patterns Scaling factor Measured value output Baud rates adjustable 110 150 300 600 1200 2400 4800 9600 19 200 38 400 SUOI EDIJIIOdS Tilting base inches imensionsinmm D 53 800 F702 Z CO G 0 6 1800 990 6 C 0 0 C 1800 8CC 8 C 0 60c 1800 L J O o 65 oO CO q o oli NiS E J Z ZJ mg st N x 2 gt LL 9 ve ZL 9 C OFLC 0 iol Oc 180 99 creo HEIDENHAIN DR JOHANNES HEIDENHAIN GmbH Dr Johannes Heidenhain Strate 5 83301 Traunreut Germany amp 49 8669 31 0 49 86 69 50 61 e mail info heidenhain de Service 49 86 69 31 12 72 amp TNC Service 49 86 69 31 1446 49 86 69 9899 e mail service heidenhain de http www heidenhain de 341 696 21 SW AAOO 5 6 99 F amp W Printed in Germany Subject to change without notice
6. 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 I W Hl SaaS Scale in linear encoder Reference marks Reference marks Switch On Traversing the Reference Marks Turn on power switch located on rear panel REF and decimal points in status display blink Confirm reference traverse mode REF remains on continuously Decimal points blink Cross over the reference marks in all axes in any sequence Each axis display becomes active when its reference mark is crossed over Crossing over the reference marks s
7. 0 100 200 12800 100 40 20 E 10 4 256 2 128 64 Parameter settings for HEIDENHAIN linear encoders with 11 pA signals Model Reference E marks Display Display o step mm step inch T 2 2 gt E e O 5 O SE D S A a O A N P43 P32 P33 P38 P32 P33 P38 MT xx01 10 2 4 0 00001 10 1 5 LIP 401A 401R single 20 1 4 0 000005 20 5 6 5 5 40 2 6 Recommended only for LIP 401 0 00002 0 000001 1 6 0 00001 0 0000005 5 7 0 000005 0 0000002 2 74 LF 103 103C 4 single 5000 0 001 0 00005 5 5 LF 401 401C 0 0005 0 00002 2 5 LIF 101 101C 0 0002 0 00001 1 5 LIP 501 501C 0 0001 0 000005 D 6 2 6 single 0 00005 0 000002 0 00002 0 000001 0 00001 0 0000005 400 5 7 0 0002 0 00001 50 1 5 0 0001 0 000005 100 5 6 LS 603 603C 0 005 4 5 3 0 0002 4 2 4 Linear Encoders Linear Encoders 40 Parameter settings for HEIDENHAIN linear encoders with 11 pA signals continued Reference marks Display Display step mm step inch O 2 E E E N N 5 2 gt a LS 106 106C EE OT 000 0 00005 LS 406 406C 0 00002 LS 706 706C ST 1201 LB 302 302C 40 en 0 005 0 0002 LIDA 10x 10xC 0 0001 0 00005 0 00002 Recommended only for LB 302 0 0002 200 4 0 0001 400 1 4 O 0 000001 200 0 0000005 400 0 0002 0 0001 LB 301 301C 100 single 1000 0 00005 100 LIM 102 12800 single 0 1 128 1 1 0 005 128 5 3 0 05 256 5 2 0 002 256
8. 2 3 Example Your encoder LS 303 C desired display step 0 005 mm 5 um parameter settings PO1 mm P43 1 000 P32 s4 Pose 5 Poa 3 Multipoint Axis Error Compensation uy If you want to use the multipoint axis error compensation feature you must e activate this feature with operating parameter 40 see Operating Parameters e traverse the reference marks after switching on the display unit e enter a compensation value 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 16 compensation values can be generated You can select the compensation table with the SPEC FCT key and the PARAMETER CODE dialog To determine the compensation values e g with a VM 101 the REF display must be selected after selecting the compensation value table Riv Select the REF Entries in the compensation value table X Y or Z Z axis only with ND 760 e Axis causing the error X Y or Z Z axis only with ND 760 e Axis to be corrected e 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 indi
9. AS 1 PRINT 1 CHR 2 IF INKEY lt gt THEN 130 C LOC 1 IF C lt L THEN 60 X INPUTS L 1 LOCATE 9 1 PRINT X GOTO 50 END Example of measured value output over the contact and pulse inputs or CTRL B HESSE x e sssa o esa a em ae Pe Ea oco TR em am ae oa Te eme ae O GIBDOBDOO O O Axis designation Equality sign Plus or minus sign 1 to 8 places before the decimal Decimal point 1 to 8 places after the decimal Unit blank mm inches error message R r radius display D d diameter display distance to go display Carriage Return Line Feed Measured Value Output 51 Specifications 52 Specifications Housing Oper temperature Storage temperature Weight Relative humidity Power supply Power consumption Protection ND 720 ND 760 Bench top design cast metal housing Dimensions W He D 270 mm 172 mm 93 mm Qdo 45 C 327 to 1137F 20 to 70 C 4 to 158 F Approx 2 3 kg 5 lb lt 5 annual average lt 90 In rare cases 90 Vac to 260 Vac 15 to 10 48 Hz to 62 Hz 15 W IP 40 as per IEC 529 Encoder inputs Input frequency Display step Datums Functions RS 232 V 24 Interface For encoders with 7 to 16 UApp Grating period 2 4 10 20 40 100 200 um and 12 8 mm Refe rence mark evaluation for distance coded and single reference marks Max 100 kHz for 30 m 98 5 ft
10. Connections on Rear Panel 31 Mounting Power Connection 32 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 Tilting base Power Connection Power leads and Connect protective ground to e Danger of electrical shock Connect a protective ground This connection must never be interrupted e Unplug the power cord before opening the housing To increase the noise immunity connect the ground terminal on the rear panel to the central ground point of the machine Minimum cross section 6 mm The display unit will operate over a voltage range of 90 Vac to 260 Vac A voltage selector is therefore not necessary Connecting the Encoders Your display unit will accept all HEIDENHAIN linear encoders with sinusoidal 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 es A YZ N Oe NO CSS A A A 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 FRQ X
11. a output Duration of the latch signal te24 us Storage delay t lt 4 5 ms Data output after to lt 50 ms Regeneration time te D Duration of data output in seconds _ 209 number of axes 11 number of blank lines tp A 1 08 Baud rate Next possible signal for measured value output te ty t2 tp ts Is Measured Value Output 47 Measured Value Output Examples of measured value output when probing Example Probe Edge X axis fe Te x 50502 2500 a coms a Deli o fosco e em ae Example Probe Midpoint X axis C th 34761 2504 R lt CR gt lt LF gt Y 10122 8660 R lt CR gt lt LF gt 85903 3042 R lt CR gt lt LF gt DO N 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 SO PVOOAOoOHO 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 O 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 fo
12. ata 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 e Number of holes per row maximum 999 e Spacing between holes e Angle between the rows and the reference axis e Hole depth e Number of rows maximum 999 e Spacing between rows Example Coordinates of the first hole X 20 mm 1 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 special functions FCT wW HOLES ROW Enter the number of holes per row Select hole pattern e g 4 and confirm with ENT FCT 42 LIN HOLE Contirm linear hole pattern Enter the spacing between holes in the row and confirm with ENT 1ST HOLE X Bo Enter the X coordinate of the first holes e g 20 and confirm with ENT Enter the angle e g 15 degrees RPPS 115 Enter the Y coordinate of the first holes e g 15 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 ROW SPACE Enter the spacing of the rows e g 20 2 O 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 t
13. be activated as follows Select datum 1 or 2 42 Select the datum number 2 X position is captured SET blinks Retract tool from workpiece Select special functions The I lt status symbol lights E Enter position value for the datum E Select probing function Tool radius is automatically compensated Select the Y axis SET lights up eo Confirm selection The I lt status symbol blinks PROBE Y A only briefly PROBE EDGE Confirm Probe edge Touch workpiece edge O with the tool Select X axis if not already selected SET lights up The I lt symbol blinks Y position is captured SET blinks Retract tool from workpiece The I lt status symbol lights PROBE X appears only briefly Touch workpiece edge OD with the tool Enter position value for the datum in the Y axis Tool radius is automatically compensated Z Select the Z axis SET lights The I lt status symbol blinks PROBE Z a only briefly Touch the top of the workpiece with the tool Z position is captured SET blinks Retract the tool from the workpiece The I lt status symbol lights Enter the position value for the datum in the Z axis or After setting the datum exit the PCT probing functions Datum Setting with the KT Edge Finder The ND position display units provide the following probing functions Edge Probing Setting a workpiece edge as datum Center Probi
14. cates the absolute distance to the reference point Do not change the datum point after measuring the uly axis error and before entering the axis error into the compensation table 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 6 0 064 mm Maximum input value 20 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 8 um 65 536 mm Entry in compensation value table 16 e 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 Multipoint Axis Error Compensation 41 Multipoint Axis Error Compensation 42 Selecting the compensation table entering an axis correction Select special functions FCT yi Select the Parameter function if a required by repeatedly pressing the 1 2 key yas Select dialog for entering the code number SPACING X Enter code number 105296 and confirm with ENT Enter the axis causing the error e g X screw pitch error and confirm with ENT di Conclude entry Enter the active datum for the error on the axis to be corrected e g 27 mm and confirm with ENT Enter the spacing of the compensatio
15. dges Select a datum number 42 JW Select the special functions FCT E La Select the probing function PROBING Confirm the probing function PROBE EDGE Select the midpoint probing function T PROBE MIDP Confirm the probe midpoint function SET lights If required select the X axis and confirm with ENT The gt ll lt status symbol starts blinking 1ST POS X appears only briefly Move edge finder toward workpiece edge until the indicator in the edge finder lights Back edge finder away from the workpiece 2 POS X appears only briefly Move edge finder toward workpiece edge until the indicator in the edge finder lights SET begins to blink Back the edge finder away from the workpiece The gt ll lt symbol begins to blink 2 3 Set the position value for the midpoint between the edges e g 26 Exit th bing functions or xit the probing functions Tool Compensation TOOL AXIS You can enter the axis length and diameter of the current tool TOOL AXIS O Z Set the tool axis Select the special functions TOOL AXIS 1 S i SPEC OF Exit the special functions SPEC or ie elect tool diameter ss CL FCT 42 TOOL DATA Confirm tool data input mode TOOL DIAM 2 o Enter the tool diameter e g 20 mm and confirm with ENT TOOL LENGTH 5 O Enter the tool length e g 50 mm and confirm with ENT 1 only by ND 760 Moving the Axes with
16. e Points 9 Datum Setting 10 i Datum setting with the tool 10 About this manual Datum setting with the KT Edge Finder 13 This manual is divided into two parts Too ll E O g amp Moving the Axes with Distance To Go 19 Part Operating Instructions Bolt Hole Circles and Bolt Circle Segments 21 e Fundamentals of positioning Linear Hole Patterns 24 e ND functions Working with a Scaling Factor 27 E M 28 Part Il Installation and specifications ik laa e Mounting the display unit on the machine e Description of operating parameters Part il e Switching inputs switching outputs Installation and Specifications Page 29 Fundamentals uly 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 Tix 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
17. face 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 T 3 Vto 15V o 3Vto 15V Levels for RTS CTS DSR and DTR Logic levels Voltage levels 1 3 Vto 15 V Ei 3Vto 15V Full wiring ND X10 CHASSIS GND 15 Q _ CHASSIS GND De Po oa ee L SIGNAL TXD 9 RXD 3 4 5 10 SIGNAL 7 11 Simplified wiring TXD RXD RTS CTS DSR GND DTR ND X10 CHASSIS GND 15 QO _ CHASSIS GND TXD RXD RTS CIS DSR SIGNAL GND DTR 9 3 4 5 7 oe Te oo o a SIGNAL TXD RXD RTS CTS DSR GND DTR RS 232 C V 24 Data Interface 45 Measured Value Output 46 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 over 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
18. guage German English French Italian Dutch Spanish Danish Swedish Finnish Czech Polish Hungarian Portuguese LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE D GB F I NL E DK S FI CZ PL H P 1 User parameter Operating Parameters 37 Linear Encoders 38 Linear Encoders Selecting the display step with linear encoders To select a certain display step you must define the following operating parameters e Subdivision P32 e Counting mode P33 e Decimal points P38 Example Linear encoder with a signal period of 10 um Desired display step 0 000 5 mm Subdivision P32 ee 20 Counting mode P33 5 Decimal places P38 4 The following tables will help you select the parameters Display step signal period and subdivision for linear encoders Display step mm 0 000 01 0 000 02 0 000 05 0 000 1 0 000 2 0 000 5 0 001 0 002 0 005 0 01 0 02 0 05 0 1 0 2 inch 0 000 001 0 000 002 0 000 005 0 000 01 0 000 02 0 000 05 0 000 1 0 000 2 0 000 5 0 001 0 002 0 005 0 01 Signal period um 2 4 10 20 P32 Subdivision 0 000 005 0 000 000 2 1400 0 000 000 5 1200 100 40 20 10 4 2 1 0 4 80 40 20 8 4 Z 0 8 100 50 100 20 40 10 20 5 10 2 4 1 2 0 5 1 0 2 0 4 0 1 0 2 40 4
19. hrink 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 P32 1 to P32 3 Subdivision of the encoder signals 1024 1000 800 512 500 400 256 200 128 100 80 64 50 40 20 10 8 5 4 2 1 0 8 0 5 0 4 0 2 0 1 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 Decimal places 2 3 4 5 6 7 8 1 User parameter Operating Parameters 35 Operating Parameters 36 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 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 Lg Lg 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 wi
20. irst hole e Angle step between the holes only for circle segments e Hole depth Example Number of holes 8 Coordinates of the center X 50 mm Y 50 mm Circle radius 20 mm Starting angle 30 degrees Hole depth Z 5 mm SPEC FCT SPEC i FCT 12 BOLT HOLE HOLE Select the special functions Select bolt hole circle Oo Confirm your selection FULL oee O O if rea fen Confirm full circle NUMB HOLES BO Enter the number of holes e g 8 Confirm with ENT CENTER X CENTER Y START ANGLE Enter the X coordinate of circle center e g 50 mm confirm with ENT Enter the Y coordinate of circle center e g 50 mm confirm with ENT Enter the radius of the bolt hole circle e g 20 mm Confirm with ENT Enter the start angle for the first hole e g 30 Confirm with ENT HOLE DEPTH Enter the total hole depth e g 5 mm and confirm with ENT START Start the display of the hole positions After the start the distance to go mode becomes active the A symbol 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 or Exit the bolt hole circle function FCT Linear Hole Patterns The linear hole pattern feature allows you to easily create rows of holes to cover an area The required d
21. is 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 Connections on Rear Panel Mounting Power connection Connecting the Encoders Operating Parameters Entering changing operating parameters Operating parameter list Linear Encoders Setting the display step Display step signal period and subdivision Compatible HEIDENHAIN linear encoders Multipoint Axis Error Compensation Pin Layout of X10 Data Interface RS 232 C V 24 Measured Value Output Specifications Dimensions of ND 720 ND 760 30 31 32 32 33 34 34 3b 38 38 38 39 41 44 45 46 52 Do Part II Installation and Specifications 29 Items Supplied e ND 720 for 2 axes or e ND 760 for 3 axes e Power connector Id Nr 257 811 01 e User s Manual Optional Accessories e 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 fa N 8 EN WA WZ e Edge finder input e RS 232 C V 24 data interface Protective ground Encoder inputs X1 to X3 Rubber feet with M4 thread ui The interfaces X1 X2 X3 and X10 comply with the requirements for electrical separation according to EN 50178
22. n points on the axis to be corrected for example 2 um equals 1024 mm and confirm with ENT Compensation point no 1 is displayed Enter the associated compensation value e g 0 01 mm and confirm with ENT 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 Deleting a compensation value table Select special functions FCT SPEC 1 Select parameter PARAMETER Select the dialog for entering the code 42 number Enter the code number 105296 and confirm with ENT Select the compensation value table e g for the Z axis and delete the table DELETE Z Confirm with ENT or cancel with CL Conclude entry FCT Multipoint Axis Error Compensation 43 Pin Layout of X10 AA Pin Layout of X10 for KT 130 Edge Finder and Data Interface Pin COYNI OO OA RI WIN gt a SS em CO o1 B W NMI O Signal RXD RTS CIs SIGN GND TXD DSR DIR CHASSIS GND Function Internal shield Standby Receive data Request to send Clear to send Up 5 V Signal ground Up OV Transmit data Data set ready Data terminal ready Meas value output by contact Switching signals Meas value output by pulse Housing 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 inter
23. ng Setting a midpoint between two workpiece edges 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 Edge Probing and Center Probing functions are describe 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 42 Select special functions FCT Select probing functions FCT 42 PROBING Confirm probing function PROBE EDGE Confirm probe edge function If required select the X axis SET lights The I lt status symbol starts blinking PROBE X appears only briefly Move the edge finder to edge of workpiece until indicator in edge finder lights SET begins to blink The ND displays the position of the edge The I lt status symbol lights Back the edge finder away from the workpiece 5 2 Assign a position value to this edge e g 52 Exit the probing function E Probing workpiece edges to find a midpoint datum The edges probed must be parallel to the Y axis Follow the procedure below for all midpoints between two e
24. r 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 2 1 25 Latch signal duration Contact te 7 ms Storage delay Pulse ty 0 8 us Storage delay Contact ti lt 4 5 ms Data output after t2 lt 30 ms Regeneration time t gt 0 Duration of data output in seconds ne 187 number of axes 11 number of blank lines to sacras Baud rate Next possible signal for measured value output te ty t2 tp ta s X10 Pin 12 Pin 8 0V X10 Pin 14 Pin 8 0V Measured Value Output 49 Measured Value Output 50 Measured value output with CTRL B If 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 5ms Data output follows t2 to lt 30 ms Regeneration time after data output tg 0ms Duration of data output in seconds e 187 number of axes 11 number of blank lines D5 ______________________ 1 08 Baud rate Next possible signal for measured value output te ty t2 tp t3 Is BASIC program for measured value output 10 20 L 48 CLS PRINT RS232 V 24 OPEN COM1 9600 E 7
25. raversing 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 or Exit the linear hole patterns function FCT Working with Scaling Factors 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 P121 23D P12 2 3 0 P11 ON This results in a larger workpiece as shown in the illustration at right D is the original size is with axis specific scaling factors Error Messages To erase error messages Message Cause and Effect After you have removed the cause of error RS TOO FAST Time interval between two commands gt 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 The spacing of the reference marks as defined in P43 is not the same as the actual spacing FORMAT ERR Data format baud rate etc do not match FRQ ERR X The input frequency for this encoder input is too high Th
26. th 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 P44 1 to P44 3 Reference mark evaluation Evaluation No evaluation REF X ON REF X OFF P45 1 to P45 3 Encoder monitoring Amplitude and frequency monitoring No monitoring ALARM ON ALARM OFF AXIS ON AXIS OFF Axis display active Not active 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 Oto 127 Measured value output disabled O 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 P51 Line feeds for measured value output Input range O to 99 Default setting 1 1 User parameter P80 Function of the CL key Set to zero with CL No set to zero with CL 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 lan
27. the French mathematician and philosopher Ren Descartes 1596 to 1650 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 Absolute memory oem Absolute workpiece positions Each position on the workpiece is uniquely defined by its absolute coordinates Example Absolute coordinates of position OD x 10 mm y 5mm L O mm If you are working according to a workpiece drawing with absolute dimensions then you are moving the tool to the coordinates Relative workpiece positions A position can also be defined relative to the previous nominal position
28. ting 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 Press the SPEC FCT key gt Press the SPEC FCT key or J1 J2 until PARAMETER appears in the X display Confirm your selection by pressing ENT If required press the a 12 key to enter the code number 95148 and access the complete list of operating parameters To page through the operating parameters Page forwards by pressing the ENT key Page backwards by pressing the a 2 key To change parameter settings Press the minus key or enter the value and confirm with the ENT key To correct an entry Press CL the old value reappears in the input line and becomes effective again To exit the operating parameters Press the SPEC FCT or CL key List of Operating Parameters P1 Unit of measure Display in millimeters MM Display in inches INCH P3 1 to P3 3 Radius diameter display 1 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 s
29. tores 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 If you wish to use multipoint axis error compensation you must traverse the reference marks see Multipoint axis error compensation Datum Settin Datum setting with the tool uy If you want to save the datum points in nonvolatile memory you must first cross over the reference marks Example Only after crossing over the reference marks can you set new datums Working plane X Y or activate existing ones Tool axis 7 There are two ways to set datums Tool radius R 5 mm Touch the workpiece with the tool and then set the desired datum Axis sequence X Y Z see example You can also touch two edges and set the centerline for datum setting 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 or probe two edges and set the centerline as datum see example The stylus radius and length are automatically accounted for if they have been entered in parameters P25 and P26 respectively see operating parameters After you have set a datum it can
30. 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 O no axis designation will be output Example of measured value output Parameter settings P49 1 88 xX P49 2 89 Y P4g 3 90 Z P51 O no blank lines P97 69 E Output E CRLF X CR LF Y CR LF Z CRLF 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 Whenever 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 dat
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