User's Manual ND 730, ND 770 (SW AA00)
Contents
1. Select the Parameter function FCT PARAMETER select the dialog for entering the code numebr Multipoint Axis Error Compensation Select the compensation value table e g for Z axis and delete the table Confirm with ENT or cancel with CL Conclude entry EB 38 w DG Specifications Housing Operating temp Storage temp Weight Relative humidity Power supply Power consumption Protection ND 730 ND 770 Bench top design cast metal Dimensions W D 2 0 mm x 172 mm x 93 mm 104b C152 to 11S F 20 to 70 C 4 to 158 F Approx 2 3 kg lt 75 annual average 9096 in rare cases 90 Vac to 260 Vac AS Hz to 62 Hz 15 W IP40 according to EN 60 529 Encoder inputs Input frequency Display step Tool datums Functions For encoders with 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 Max 100 kHz with 30 m 66 ft cable Adjustable see Linear Encodes 9 nonvolatile Distance to go display Radius diameter display Separate value sum display only ND 770 Hold position Set absolute datum Taper calculator Scaling factor Specifications 39 o gt E n E E a x i o c o c ve e 241 2209 9 45 8 2682. 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 Scaling factor active SCALING ON Not active SCALING OFF P12 1 to P12 3 Enter scaling factor 1 Enter a scaling factor separately for each axis Entry value 1 workpiece will grow Entry value 1 workpiece will remain the same size Entry value 1 workpiece will shrink Input range 0 111111 to 9 999999 Factory setting 1 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 1to P33 3 Counting step 0 1 2 3 4 5 6 7 8 9 0 2 4 6 8 0 5 P38 1 to P38 3 Decimal places 1 2 3 4 5 6 up to 8 with inches display P40 1to 40 3 Define axis error compensation Axis error compensation not active CORR OFF Linear axis error compensation active CORR LIN Multipoint axis error compensation active CORR ABS See Multipoint Axis Error Compensation 1 User parameter Operating Parameters 31 Operating Parameters 32 P41 1 to P41 3 Linear axis error compensation Linear axis error compensation is activated via paramet
3. Display step signal period and subdivision Compatible HEIDENHAIN linear encoders Multipoint Axis Error Compensation Input in compensation value table Selecting compensation value table entering axis error values Deleting compensation value table Specifications Dimensions ND 730 770 3 38 39 40 Part Il Installation and Specifications 25 Items Supplied e ND 730 for 2 axes Or e ND 770 for 3 axes e Power connector Id Nr 257 811 01 e User s Manual Optional Accessories e Tilting base for mounting on underside of housing Id Nr 281 619 01 Connections on Rear Panel ID label Power switch GN N S Power input 2 J Ground terminal Encoder inputs X1 to X3 Connections X1 X2 X3 meet the regulations for safe separation from line power according to EN 50178 Rubber feet with M4 thread Connections on Rear Panel 27 Mounting 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 Hot leads D and Protective ground A a The display unit will operate over a voltage range of 90 Vac to 260 Vac A voltage selector is not necessary Connecting the Encoders Your display unit will accept all HEIDENHAIN linear encoders with sinusoidal output signals 7 to 16 uApp and distance coded or single reference marks Assignm
4. Your machine may have a non linear axis error due to factors such as axis sag or drivescrew errors Such deviations are usually measured with a comparator measuring system This allows you to determine for example the screw pitch error X F X for the X axis An axis can only be corrected in relation to one axis causing the error You can create a compensation value table for each axis with each table containing 16 compensation values The compensation value table is selected with the SPEC FCT key and the dialog PARAMETER CODE All of the input values required for the multipoint compensation are requested via dialog Multipoint Axis Error Compensation To determine the compensation values e g with a VM 101 the REF display must be selected after selecting the compensation value table Select REF display 36 8 O Entries in the compensation value table e Axis to be compensated A ZO Or Z Zo only ND770 e Axis with error X Zo or Z Zo only ND770 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 indicates the absolute distance to the reference point Do not change the datum point after measuring the 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 compensat
5. the position of the tool tip e g 0 mm 0 Confirm with ENT Enter further axes in the same way Entering tool data relative datums Touch the workpiece or turn the first diameter Select the axis for example X enter the position of the tool tip for example 20 mm and confirm with ENT To set additional tools change the tool select a new tool number and enter the data for the next tool Select the Tool Set function or End the function The decimal point beside T and the decimal points beneath it begin to blink Select the axis for example Z enter the position of the tool tip for example 0 mm and confirm with ENT When you work with the sum display also set the tool data when the sum display is active ND 770 only Holding Positions If you want to measure the workpiece after turning the first diameter your display unit has to capability to freeze hold the actual position before you retract the tool Turn the first diameter for example in the X axis Select Special Functions FCT Select the Hold Position function Select the axis whose position is to be held and confirm with ENT Retract the tool X axis display remains stopped Measure the workpiece C e g Enter the measured position for example 12 mm and confirm with ENT The display shows the current tool position Or End the function Moving the Axes with the Distance To Go Displa
6. 008 1800 vOc CO L 0 99 9 0 66 800 990 6 0 0 c 800 8cc 8 0 60c 800 1 0 1 9 0 80 9976 CTEG 6L 0c 40 HEIDENHAIN DR JOHANNES HEIDENHAIN GmbH Dr Johannes Heidenhain Strafge 5 83301 Traunreut Germany 49 8669 31 0 49 86 69 50 61 e mail info heidenhain de Service 49 86 69 31 12 72 TNC Service 49 86 69 31 14 46 49 86 69 98 99 e mail servicegheidenhain de http www heidenhain de HEIDENHAIN G B Limited 200 London Road Burgess Hill West Sussex RH15 9RD Great Britain amp 01444 247711 01444 870024 341 697 21 SW AAOO 15 7 2000 F amp W Printed in Germany Subject to change without notice
7. 148 Operating parameters are designated by the letter P and a number Example P11 The parameter designation is shown in the X display when a parameter is selected with the TOOL and ENT keys The parameter setting is shown in the Z 2 ND 730 Zo ND 770 display Some operating parameters have separate values for each axis Such parameters have an additional index number from 1 to 3 with the ND 770 and from 1 to 2 with the ND 730 Example P12 1 scaling factor X axis P12 2 scaling factor Zo axis only ND 770 P12 3 scaling factor Z axis The operating parameters are preset before the unit leaves the factory These factory settings are indicated in the parameter list in boldface type Entering changing operating parameters Calling operatingparameters gt Press the SPEC FCT key gt Press SPEC FCT or TOOL until PARAMETER is displayed in X gt Confirm with ENT gt If you wish use the TOOL key to select the dialog for entering the code number 95148 to access the full range of operating parameters Scrolling through the operating parameter list p gt Scroll forwards Press the ENT key Scroll backwards Press the TOOL key Changing parameter settings gt Press the minus key or enter the value and confirm with the ENT key Correcting an entry gt Press CL This restores the old value Exiting the operating parameters Press SPEC FCT or CL List of operating parameters P1 Unit of measurement 1
8. ERE MODE ND 730 770 10b 5B83c5 HEIDENHAIN Position display e Select coordinate axis ND 730 only two axes ND 730 only X and Z e Select axis based operating parameters Status display SET Setdatum REF Blinking Traverse reference marks Lighting Reference marks have been traversed A Distance to go Inch Inch display SCL Scaling factor UM k R Radius diameter display T Toolselected e Toolcompensation e Scroll backwards in special functions list e Scroll backwards in parameter list Numericalinput e Changesign e Calllast dialog e In parameter list Change parameter e Confirm entry e Scroll forwards in parameter list Select radius diameter display in X axis e Select special functions Scroll forwards in special functionslist e Abort entry Reset operating mode e Reset selected axis to zero if activated via P 80 e Select parameter CL plus two digit number This manual is for ND display units with the following software numbers or higher ND 730 for two axes AA00 ND 770 for three axes AA00 About this manual This manual is divided into two parts Partl Operating Instructions e Fundamentals of positioning e ND functions Part ll Installation and Specifications e Mounting the display unit on the machine e Description of operating parameters Part Operating Instructions Fundamentals Switch On Reference Mark Trav
9. R CALC Enter the first value e g 1 and confirm with ENT Enter the second value e g 3 confirm with ENT length of taper is three times as large as radius difference The result is displayed in the message field End the taper calculator Calculation from two diameters and the length Select Special Functions FCT 200 Enter value e g 10 mm confirm with ENT 2 0 Enter value e g 20 mm confirm with ENT 3 Enter value e g 30 mm confirm with ENT The result is displayed in the message field or End the taper calculator Error Messages SIGNAL X The encoder signal is too weak The scale may be contaminated ERR REF X The spacing of the reference marks as defined in P43 is not the same as the actual spacing 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 Checksum error Check the datum operating parameters and compensation values for multipoint axis error compensation this error recurs contact your service agency To clear error messages When you have removed the cause of the error gt press the CL key Part Il Installation and Specifications Items Supplied Connections on Rear Panel Mounting Power Supply Connecting the Encoders Operating Parameters Entering changing operating parameters Operating parameter list Linear Encoders Setting the display step
10. adius Drawings of lathe parts usually indicate diameters When you are turning the part however you infeed the tool in the cross slide axis in radius values Example Radius display position X 20mm Diameter display position X 40mm To switch the display Press Separate Value Sum Display ND 970 only Separate value display In this mode the positions of the saddle and top slide are displayed separately The position displays are referenced to the datum points that you set for the Zo and Z axes When an axis slide moves only the 10 25 position display for that axis changes ta eres ei Sum display In this mode the position values of both axis slides are added together The sum display shows the absolute position of the tool referenced to the workpiece datum Example Separate value display Z 25 000 mm Zo 15 000 mm 15 Sum display Zs 40 000 mm To switch the display Sum display Press the keys Zo and Z at the same time gt Separate value display Press the key Zo ii Datum Setting With the ND 730 ND 770 position displays you can set one absolute workpiece datum and data for up to 9 tools relative datums Setting the absolute workpiece datum When you enter a new value for the absolute workpiece datum all tool data are then based on the new workpiece datum Touch the workpiece end face with the tool B Select the axis SET begins to blink Enter
11. datum machine datum When this reference mark is crossed over the ND s reference mark evaluation feature restores the relationship between axis slide positions and display values as you last defined it by setting the datum If the linear encoders have distance coded reference marks you need only move the machine axes a maximum of 20 mm to restore the datum Encoder ND rere COND s Scale in linear HN Distance coded encoder reference marks Reference mark Switch On Reference Mark Traverse Turn on the power switch located on rear panel REF is blinking in the status display Confirm reference point traverse REF is now lighting Decimal points are blinking 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 stores the last relationship between axis slide positions and display values for all datum points in nonvolatile memory Note that if you choose not to cross over the reference marks by clearing the dialog ENT CL with the CL key this relationship will be lost if the power is switched off or otherwise interrupted You must cross over the reference marks if you want to use the multipoint axis error compensation function See Multipoint Axis Error Compensation Selecting Radius or Diameter Display Your ND can display positions in the cross slide as a diameter or as a r
12. ear encoder with signal period 10 um Required display step 0 000 5 mm SUBCIVISION iussa tide secs 20 Counting step P33 5 Decimal places P38 4 The tables on this page and the next pages will help you selecting your 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 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 21400 0 000 000 5 200 100 40 20 10 4 2 1 0 4 80 40 20 8 4 2 0 8 100 50 100 20 40 10 20 5 10 2 4 0 5 1 0 2 0 4 0 1 02 40 40 20 0 8 0 4 100 100 50 20 10 200 12 800 100 40 B 20 10 4 256 2 128 64 Linear Encoders 33 Linear Encoders 34 Parameter settings for HEIDENHAIN linear encoders with 11 signals Reference marks Display Display E 5 step mm step inch T 2 5 A O A P43 P P P CT 2 0 00002 4 2 5 MT xx01 0 00001 10 1 5 LIP 401A 401R single 0 000005 20 5 6 0 000002 40 2 6 0 00002 0 000001 100 1 6 0 00001 0 0000005 200 5 7 0 000005 0 0000002 400 12 7 LF 103 103C 4 sin
13. ent of the encoder inputs for the ND 730 Encoder input X1 is for the X axis Encoder input X2 is for the Z axis Assignment of the encoder inputs for the ND 770 5 Ox O Encoder input X1 is for the X axis Encoder input X2 is for the Zo axis Encoder input X3 is for the Z axis Encodermonitoring 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 ERR X Encoder monitoring can be activated with parameter 45 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 43 15 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 29 Operating Parameters 30 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 PARAMETER user parameters are identified as such in the parameter list The full range of parameters can only be accessed via the dialog CODE and input of the code number 95
14. ers 40 1 to 40 3 Input range um 99999 to 99999 Default setting 0 Example Displayed length La 620 000 mm Actual length as determined for example with the VM 101 from HEIDENHAIN La 619 876 mm Difference AL La 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 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 P44 1 to P44 3 Reference mark evaluation Evaluation active Evaluation not active REF X ON REF X OFF P45 1 to P45 3 Encoder monitoring Amplitude and frequency monitoring active Amplitude and frequency monitoring not active P48 1 to P48 3 Activate axis display Axis display active Axis display not active P80 Function of CL key Reset with CL No reset with CL P98 Dialog language German English French Italian Dutch Spanish Danish Swedish Finnish Czech Polish Hungarian Portuguese 1 User parameter ALARM ON ALARM OFF AXIS ON AXIS OFF LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE LANGUAGE PL Linear Encoders Setting the display step with linear encoders The display step depends on the Subdivision P32 Counting step P33 Decimal places P38 Example Lin
15. erse Selecting Radius or Diameter Display Separate Value Sum Display only ND 770 Datum Setting Setting the absolute workpiece datum Entering tool data relative datums Holding Positions Moving the Axes with Distance To Go Taper Calculator Error Messages Part Il Installation and Specifications 10 11 12 13 13 14 15 17 19 23 25 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 To describe the geometry of a workpiece a rectangular or Cartesian coordinate system is used 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 that 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 With lathe work i e rotationally symmetrical workpieces the Z axis moves along the axis of rotation and the X axis moves in the direction of the radius or diameter The Y axis can be disregarded since it would always have the same values as the X axis 1 Named in honor of the French mathematician and philosopher Ren Descartes 1596 to 1650 Datum or origin Cr
16. gle 5000 0 001 0 00005 4 5 5 LF 401 401C 0 0005 0 00002 8 2 5 LIF 101 101C 0 0002 0 00001 20 1 5 LIP 501 501C 0 0001 0 000005 40 5 6 LIP 101 single 0 00005 0 000002 80 2 6 0 00002 0 000001 200 0 00001 0 0000005 400 5 7 MT xx 10 single 0 0005 0 00002 20 0 0002 0 00001 50 1 5 0 0001 0 000005 100 5 6 15 603 603 0 005 4 3 0 0002 4 2 4 Parameter settings for HEIDENHAIN linear encoders 11 pA continued Reference marks Display step mm Display step inch vision vision oO T Q 65 c o single 1000 LS 106 106C 20 0 001 20 3 0 00005 LS 706 706C a LB 302 302C 40 single 2000 0 005 8 0 0002 LIDA 10x 10xC 20 0 0001 40 0 00005 0 00002 Recommended only for LB 302 0 0002 200 2 4 0 000001 200 0 0001 400 1 1 0 0000005 400 5 2 1 5 6 0 002 50 2 3 0 0001 50 4 0 001 100 1 2 0 00005 100 5 5 MIS jme s d oom 0 2 3 0 05 256 5 2 0 002 256 2 3 Example Your encoder LS 303 C desired display step 0 005 mm 5 um parameter settings PO1 2 mm T1000 P3294 P395895 PF395232 Linear Encoders 35 Multipoint Axis Error Compensation If you want to use the multipoint axis error compen sation feature you must e Activate this feature with operating parameter P40 see Operating Parameters e Traverse the reference marks after switching on the display unit e Enter compensation value table
17. ion value table Minimum input value Maximum input value 6 0 064 mm 20 1052 672 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 219 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 0 always has the value 0 and cannot be changed To select comp value table and enter an axis correction Select Special Functions Enter the active datum for the error on the axis to be corrected e g 27 mm and Select the Parameter function if required confirm bil by repeatedly pressing the TOOL key v PARAMETER Select dialog for entering the code points on the axis to be corrected e g 10 number 2 um equals 1 024 mm and confirm Enter 105296 and confirm with ENT Select compensation point no 1 enter the associated compensation value e g 0 01 mm and confirm Select the axis to be corrected e g X confirm with ENT Enter all further compensation points If you press the MINUS key the number of the current compensation point is Enter the axis causing the error e g X shown in the X display screw pitch error confirm with ENT Conclude entry Multipoint Axis Error Compensation 37 Deleting a compensation value table Select Special Functions
18. ned 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 l Example Relative coordinate of position referenced to position 1 10mm IZ 30 mm If you are working according to a workpiece drawing with incremental dimensions 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 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 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 re establish 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 identifying that position as a reference point scale
19. oss slide saddle and top slide On conventional lathes the tool is mounted on a slide that moves in the direction of the X axis the cross slide and in the direction of the Z axis the saddle Most lathes have a top slide above the saddle The top slide moves in Z axis direction and is designated Zo Datum setting The workpiece drawing is used as the basis for machining the workpiece o enable the dimensions in the drawing to be converted into traverse distances of machine axes X 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 which corresponds to that position This establishes a fixed relationship between the actual positions of the axes and the displayed positions With the ND you can set one absolute datum point and as many as 9 relative datum points tool datums and store them in nonvolatile memory Absolute datum 2 Relative X datum Tool datums tool compensation Your display unit should show you the absolute position of
20. the workpiece regardless of the length and shape of the particular tool being used For this reason you must determine the tool data and enter it First touch the workpiece with the cutting edge of the tool and then enter the associated display value for that position You can enter tool data for up to 9 tools When you have set the absolute workpiece datum for a new workpiece all tool data relative datum points are referenced to the new workpiece datum Nominal position actual position and distance to go The positions to which the tool is to move are called the nominal positions S The position at which the tool is actually located at any given moment is called the actual position 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 you move in the positive axis direction and positive when you move in the negative axis direction Absolute workpiece positions Each position on the workpiece is uniquely defined by its absolute coordinates Example Absolute coordinates of position 1 5 mm Z 35 mm If you are working according to a workpiece drawing with absolute dimensions you are moving the tool to the coordinates Relative workpiece positions A position can also be defi
21. y Normally the display shows the actual position of the tool However it Is often more helpful to display the remaining distance to the nominal position distance to go You can then position simply by moving the axis until the display value is zero Application example Finish turning a shoulder by traversing to zero Select Special Functions FCT cC Dr Select Delta Mode FCT DELTA MODE Confirm the distance to go A lights up Select the axis e g X enter the nominal x coordinate e g 15 mm radius confirm with ENT Move the X axis until the display value is zero The tool is at position D x Boc Select the axis e g Z enter the nominal coordinate e g 20 mm and confirm with ENT Move the Z axis until the display value is zero The tool is at position Select the axis enter the nominal coordinate e g 20 mm radius confirm with ENT Move the X axis until the display value is zero The tool is at position End the distance to go mode The A symbol goes out Taper Calculator The taper calculator enables you to calculate the angle for the top slide There are two possibilities e Calculation from the taper ratio Difference between the taper radii to the length of the taper e Calculation from two diameters and the length Starting diameter Final diameter Length of the taper Calculation from the taper ratio SPEC Select Special Functions TAPE
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