User's Manual ND 710, ND 750 (SW 246271-06)
Contents
1. 5 Decimal places P38 4 The following tables will help you select the parameters Linear Encoders 39 Linear Encoders Parameter settings for HEIDENHAIN linear encoders with 11 pA signals Reference marks Display step mm Display step inch ignalperod Dedmal places P31 P43 single 0 00002 MT e 0 00001 LIP LIP 401A 401R H single 0 000005 Deamal places LIP 501 501C UI pr eoe NN ooo 5 _ LS 303 303C 20 single 1000 eon 01 1 2 0 0005 5 603 603 005 HN Ha 0 0002 LS 106 106C 20 single 1000 0 001 1 3 0 00005 LS 406 406C LS 706 706C 511201 511201 LB 302 302C Lm HF 005 e 0002 LIDA 10x 10xC HF 002 e 0001 LB 301 301C single 1000 0 005 0 0002 Example Your encoder LS 303 C desired display step 0 005 mm 5 um parameter settings PO mm 1 000 P32 4 P3s _5 P3ss 3 LF 103 103C single 5000 0 001 0 00005 LF 401 401C 0 00002 LIF 101 101C 0 00001 Multipoint Axis Error Compensation uly 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 compensation value table Your machine may have a non linear axis error due to factors such axis Sag or drives2. Or Exit the bolt hole circle function FCT 1 only with ND 750 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 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 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 Ac 20mm 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 FCT HOLES ROW Enter the number of holes per row e g 4 and confirm with ENT LIN HOLE Confirm linear hole pattern 2 O Enter the X coordinate of the first holes e g 20 and confirm with ENT Enter the spacing between holes in the row e g 16 and confirm with ENT Enter the angle e g 15 degrees and confirm with ENT lST HOLE Y Enter the Y coordinate of the first holes e g 15 and confirm with ENT e Enter the hole depth e g 30 mm o and confirm with ENT 1 only with ND 750 Enter the number of rows 3 and confirm with ENT Enter the spacing of the rows e g 20 and
3. DELTA 2 3 c CL Ea 12 7 HEIDENHAIN Position display Select coordinate axes ND 710 only two axes ND 710 only X and Y e Select axis specific operating parameters Status display Numerical input SET Datum setting REF blinking Traverse the reference points On continuously Reference points have been traversed A Distance to go display 1112 Datum 1 or 2 Inch Display in inches SCL Scaling factor Change the algebraic sign Call the last dialog In the parameter list change parameters Confirm entry e In the parameter list page forward Call radius compensation of the current tool gt ll lt Touching the edge centerline R Radius diameter display R Radius compensation Select special functions e In the list of special functions page forward Select datum 1 or 2 Page backward in the list of special functions Page backward in the list of parameters Cancel entry e Reset the operating mode e Zero the selected axis if activated in P80 e Select parameters CL plus two digit number About this manual This manual is divided into two parts Part Operating Instructions e Fundamentals of positioning e ND functions Part Il Installation and Specifications e Mounting the display unit on the machine e Description of operating parameters Part Operating Instructions
4. 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 100000 to 9 999999 Factory default setting 1 000000 1 User parameter 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 1to 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 1 2 3 4 up to 6 with inch display 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 Operating Parameters 37 Operating Parameters P41 1 to P41 3 Linear axis error compensation Input range um 99999 to 499999 Factory default setting 0 Example Displayed length La 620 000 mm Actual length as determined for example with the VM 101 from HEIDENHAIN Ly 619 876 mm Difference DL La 124 um Compensation factor k AL Lg 124 um 0 62 m 200 um m P43 1 to P43 3 Reference marks One reference mark SINGLE
5. 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 REF X ON No evaluation REF X OFF 45 1 P45 3 Encoder monitoring Amplitude and frequency monitoring ALARM ON No monitoring ALARM OFF 1 User parameter P48 1 to P48 3 Activate axis display Axis display active AXIS ON Not active AXIS OFF P70 Number of datums 2 datums 2 DATUMS 9 datums 9 DATUMS Function of the CL key Reset to zero with CL CL RESET No reset to zero with CL Clie eee OFF P81 Function of the R key The R key divides the actual R 1 2 value by two No division of the actual value R OFF P98 Dialog language German LANGUAGE D English LANGUAGE GB French LANGUAGE F Italian LANGUAGE I Dutch LANGUAGE NL Spanish LANGUAGE E Danish LANGUAGE DK Swedish LANGUAGE 5 Finnish LANGUAGE FI Czech LANGUAGE CZ Polish LANGUAGE PL Hungarian LANGUAGE H Portuguese LANGUAGE P Linear Encoders Selecting the display step with linear encoders To select a certain display step you must define the following operating parameters 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 1 10 Counting mode
6. Encoders 2 nonvolatile Tool radius compensation Distance to go display Touching off function with tool Circular amp linear hole patterns Scaling factor inches imensionsmm D 45 suoneoyioodg Tilting base ev S 800 7702 C 0 98 8 0 62 4 800 8980 6 OFOET 4 800 8cc 8 0 60 CJ T E IE x x 4 800751 160516 0 02 80 99 9 cCt 6 HEIDENHAIN DR JOHANNES HEIDENHAIN GmbH Dr Johannes Heidenhain Strafgse 5 83301 Traunreut Germany 49 8669 31 0 1 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 1 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 01444 247711 01444 870024 341 695 22 SW246 271 06 15 12 2000 FAW Printed in Germany Subject to change without notice
7. Fundamentals 4 Switch On Traversing the Reference Points 9 Datum Setting 10 Tool Compensation 19 Moving the Axes with Distance To Go 20 Bolt Hole Circles and Bolt Hole Circle Segments 22 Linear Hole Patterns 25 Working with a Scaling Factor 28 Error Messages 29 Part Il Installation and Specifications Page 31 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 To describe the geometry of a workpiece the Cartesian coordinate Datum or system is used The Cartesian coordinate system consists of three origin 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 French mathematician and philosopher Ren Descartes 1596 to 1650 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
8. 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 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 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 750 these parameters are identified by an index of 1 to 3 and in the ND 710 by an index of one to two Example 12 1 scaling factor X axis P12 2 scaling factor Y axis P12 3 scaling factor Z axis ND 750 only The operating parameters are preset before the unit leaves the factory These facto
9. 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 Setting W If you want to save the datum points in nonvolatile To call a datum point you have set proceed as follows memory you must first cross over the reference marks You have set two datum points in P70 1 Only after crossing over the reference marks can you set new e ore datums or activate existing ones In P70 you can select Two datum points The selected datum You have set nine datum points in P70 is displayed via 1 or 2 e Nine datum points The selected datum is displayed in the lowest axis d1 to d9 There are several ways set datums Enter a datum number 1 to 9 Touch the edge of the workpiece with the tool and then set m the desired datum You can also touch two edges and set the centerline between them as a datum or touch the inside of a circle and set the circle center as a datum see examples The tool data of the tool used for this are automatically considered see Tool Compensation Probing a workpiece edge to find a datum The ND display units support the following probing functions PROBE EDGE Setting a workpiece edge as datum PROBE MIDPOINT Setting a midpoint between two workpiece edges as datum P
10. confirm with ENT START Start the display of hole positions The distance to go mode 15 now active the A symbol lights The hole number is shown 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 cC Or Exit the linear hole patterns function FCT 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 PUN e F12 2 3 0 PTI ON This results in a larger workpiece as shown in the illustration at right 0 is the original size is with axis specific scaling factors Error Messages Message SIGNAL X PROB ERROR ERR REF X FRQ ERR X ERR MEMORY Cause and effect Encoder signal is too small e g when an encoder is contaminated Before touching off on the workpiece the tool must move by a distance of at least 0 2 mm The spacing of the reference marks as defined in P43 is not the same as the actual spacing The input frequency for this encoder input is too high This can occur wh
11. 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 first hole e Angle step between the holes only for circle segments e Hole depth Example Number of holes 8 Coordinates of the center X 2 50mm Y 50 mm Circle radius 20 mm Starting angle 30 degrees Hole depth Z 5 MM SPEC Select the special functions FCT SPEC Wy Select bolt hole circle Of 8 BOLT HOLE HOLE Oo Confirm your selection FULL FULL CIRCLE if req E 5 e Confirm full circle NUMB HOLES B S9 Enter the number of holes e g 8 Confirm with ENT CENTER X 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
12. ROBE CIRCLE Setting the center of a circle as datum The probing functions are accessible in the SPEC FCT mode of operation The functions PROBE EDGE PROBE MIDPOINT and PROBE CIRCLE are described on the following pages Datum setting with the tool Example Working plane X Y Tool axis 2 Tool radius R 5mm Axis sequence X Y Z for datum setting Probing a workpiece edge to find a datum PROBE X appears only briefly TT Select a datum number see 10 Touch workpiece edge with the tool Select the special functions FCT X position is captured SET edge appears briefly SET starts to blink Retract tool from workpiece select probing function The 1 lt status symbol lights AME Tool radius is automatically Confirm selection compensated DIS The Ix status symbol starts to blink Confirm Probe edge PROBE Y appears only briefly Select the X axis if not already selected Touch workpiece edge with the tool SET lights The I lt status symbol starts to blink position is captured SET edge appears briefly SET starts to blink Retract tool from workpiece 3 Enter position value for the datum in the Z axis sense OT After setting the datum exit the probing funtions Enter position value for the datum in the Y axis Tool radius is automatically compensated Select the Z axis SET lights
13. The Ik status symbol starts to blink PROBE Z appears only briefly Touch workpiece surface with the tool Retract tool from workpiece The I lt status symbol lights 2 position is captured SET edge appears briefly SET starts to blink 1 only with ND 750 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 1 Select a datum number see page 10 cC select the special functions FCT cC Select the probing function PROBING Confirm selection DUNS OSE Retract tool from workpiece 1 Select Probe midpoint D PROBE MIDP 2ND POS X only briefly Select the X axis if not already selected Confirm Probe midpoint Touch workpiece edge Q with the SET lights tool S and n ENT The gt ll lt symbol SET MIDPOINT appears briefly SET oe es starts to blink Retract tool from workpiece The I lt status symbol starts 1ST POS X appears only briefly to blink 2 3 Enter position value the midpoint between the two edges e g 26 SPEC Exit the probing functions FCT Touch workpiece edge D with the tool Position value is captured 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 l
14. alue table Minimum input value 6 0 064 mm Maximum input value 20 2 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 Compensation value You enter the measured compensation value in millimeters for the displayed compensation point Compensation point O always has the value 0 and cannot be changed Multipoint Axis Error Compensation 41 Multipoint Axis Error Compensation Selecting the compensation table entering an axis correction SPEC FCT PARAMETER Select special functions Select parameter if required by repeatedly pressing the 1112 Select dialog for entering the code number Enter code number 105296 and confirm with ENT AXIS X Select the axis to be corrected e g X and confirm with ENT Enter the axis causing the error e g X screw pitch error and confirm with ENT 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 compensation points on the axis to be corrected for example 2 um equals 1 024 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 t
15. crew errors Such deviations are usually measured with a comparator measuring system Such as the HEIDENHAIN VM 101 For example you can 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 value e g with a VM 101 the REF display must be selected after selecting the compensation value table select the REF The decimal point in the left display field indicates that the values displayed are referenced to the reference point If the decimal point blinks the reference marks have not been traversed Entries in the compensation value table X Y or 2 2 axis only with ND 750 Axis causing the error X Y or Z Z axis only with ND 750 Axis to be corrected 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 of the compensation points The spacing of the compensation points 15 expressed as 2 uml Enter the value of the exponent x into the compensation v
16. 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 Relative 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 Absolute datum You can set 2 absolute datum points and store them in nonvolatile memory Absolute workpiece positions Each position on the workpiece is uniquely defined by its absolute coordinates Example Absolute coordinates of position D x 10 Y 5mm If are working according 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 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 positio
17. en the scale is moved too fast Check sum error Check the datum operating parameters and compensation values for multi point axis error compensation If the error recurs contact your service agency To erase error messages After you have removed the cause of error Press the CL key 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 Parameter settings for HEIDENHAIN linear encoders with 11 Multipoint Axis Error Compensation Specifications Dimensions of the ND 710 ND 750 32 33 34 34 35 36 36 39 39 39 40 41 44 45 Part Installation and Specifications 31 Items Supplied e ND 710 for 2 axes or e ND 750 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 Connections on Rear Panel ID label Power switch x 1S 8 Power input A Y A WA 2 Protective ground Encoder inputs X1 to X3 Rubber feet with M4 thread uly The interfaces X1 X2 comply with the requirements for electrical separation according to EN 50178 Connections on Rear Panel 33 Mounting Power C
18. he 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 Conclude entry Deleting compensation value table Select special functions Select parameter PARAMETER Select the dialog for entering the code 42 number Enter the code number 105296 and confirm with ENT AXIS X 208 Select the compensation value table e g for the Z axis and delete the table DELETE Z m Confirm with ENT or cancel with CL SPEC FCT Conclude entry Multipoint Axis Error Compensation 43 Specifications Specifications Housing Oper temperature Storage temperature Weight Relative humidity Power supply Power consumption Protection ND 710 ND 750 Bench top design cast metal housing Dimensions W H D 270 mm 172 mm 93 mm 0104151 32 TO 1137F 20 to 70 C 4 to 158 Approx 2 3 kg 5 Ib lt 75 annual average 9096 in rare cases 100 Vac to 240 Vac 1596 to 10 50 Hz to 60 Hz 2 Hz 15 W IP 40 as per IEC 529 Encoder inputs Input frequency Display step Datums Functions For encoders with 7 to 16 uApp Grating period 2 4 10 20 40 100 and 200 um Reference mark evaluation for distance coded and single reference marks Max 100 kHz for 30 m cable length Adjustable see Linear
19. ith ENT cC 23 o Enter the tool length e g 50 mm and confirm with ENT 1 only with ND 750 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 FCT or Select delta mode DELTA MODE Confirm your selection the A symbol lights Select the axis enter the nominal value e g 20 mm select radius compensation confirm with ENT Move the machine axis to zero D 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 Q Select the axis enter the nominal value e g 50 mm select radius compensation R confirm with ENT Move the machine axis to zero 3 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 drill bolt hole circles and bolt hole circle segments The required data is requested the message field Each hole can be moved
20. n D 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 15 moved in the positive direction and a negative sign when It 15 moved in the negative direction Nominal position actual position and distance to go The position to which the tool 15 to move 15 called the nominal position The position at which the tool is actually located at any given moment is called the actual position 00 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 15 therefore negative when you move in the positive axis direction and positive when you move 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 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 evaluatio
21. n feature enable the ND to quickly re establish this relationship again when the power 15 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 r Scale in Distance coded linear encoder reference marks Reference mark Switch On Traversing the Reference Marks 0 1 Turn on power switch located on rear panel gt 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 stores the last relationship between axis slide positions and display values 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
22. ocated in the X Y plane L Ae Select a datum number see page 10 Select the special functions FCT or Select the probing function PROBING Confirm selection PROBE CIRC 1 Select Probe circle n g PROBE CIRC Position is captured Confirm Probe circle 1ST POS X appears only briefly Retract tool from workpiece Touch workpiece at position D with the tool 3RD POS Y appears only briefly Touch workpiece at position with the tool Position is captured Retract tool from workpiece 2ND POS X appears only briefly Touch workpiece at position with the tool 4TH POS appears only briefly Touch workpiece at position with the tool Position is captured CENTER appears briefly Status display SET starts to blink the X axis Enter position value for the X coordinate of circle center e g 26 CENTER appears briefly Status display SET starts to blink in the Y axis o Enter position value for the Y coordinate of circle center e g 0 Exit the probing functions Tool Compensation You can enter the axis length and diameter of the current tool Bo Set the tool axis Select the special functions TOOL AXIS Exit the special functions Select tool data TOOL DATA Confirm tool data input mode TOOL DIAM 2 Enter the tool diameter e g 20 mm and confirm w
23. onnection 34 Mounting ND 710 ND 750 To mount the display unit on a support use the M4 threaded holes 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 Powersupply 100 Vac to 240 Vac 15 to 10 50 Hz to 60 Hz 2 Hz A voltage selector is not necessary Connect a protective ground This connection must never be interrupted e Unplug the power cord before opening the housing Danger of electrical shock on the rear panel to the central ground point of the machine To increase the noise immunity connect the ground terminal Minimum cross section 6 mm Connecting the Encoders Your display unit will accept all HEIDENHAIN linear encoders with sinusoidal output signals 7 to 16 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 is for the 2 axis ND 750 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
24. ry settings are indicated in the parameter list in boldface type Entering and changing operating parameters To access the operating parameters gt Press the SPEC key gt Press the SPEC FCT key or 1 2 until PARAMETER appears in the X display Confirm your selection by pressing ENT To select protected operating parameters Press the 11 12 key to select user parameter POO CODE Enter the code number 95148 gt Confirm with ENT To page through the operating parameters Page forwards by pressing the ENT key Page backwards by pressing the 10 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 leave the operating parameters Press the SPEC or CL key List of operating parameters POO CODE Enter the code number 9 51 48 Change protected operating parameters 66 55 44 Display the software version X display Display date of release Y display 10 52 96 Multipoint axis error compensation P1 Unit of measure 1 Display in millimeters MM Display in inches INCH P3 1to P3 3 Radius diameter display 1 Display position value as radius RADIUS Display position value as diameter DIAMETER P11 Activate scaling factor Active SCALING ON Not active SCALING OFF P12 1to P12 3 Define scaling factor 1
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