HEIDENHAIN POSITIP 880 User Manual
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HEIDENHAIN POSITIP 880 User Manual

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See also: Instruction and Installation Manual
User's Manual
POSITIP 880
English (en)
6/2005

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Summary of Contents for HEIDENHAIN POSITIP 880

  • Page 1 User’s Manual POSITIP 880 English (en) 6/2005...
  • Page 2 POSITIP 880 Back View Axis ports Parallel port Edge finder Auxiliary Machine Interface connector Ground Serial port Power button Main power input Remote console Keypad and soft keys 4 axis keys to select between X, Y and Z axes Numeric input keys...
  • Page 3 Operating Instructions as a comprehensive review and reference guide. Technical Information If you are interfacing the POSITIP 880 to a machine or wish to use the data interfaces, refer to the technical information in Part II. Dialog flowcharts Dialog flowcharts are used for each example in this manual. They are...
  • Page 4 PROMPT This area explains the key function or work step. If necessary, supplementary information will also be included. If there is an arrow at the end of the flowchart, this means that it continues on the next page. A perforated line indicates an alternative method of carrying out the given function.
  • Page 5 Every note is marked with a symbol on the left informing about the meaning of the note. General Information e.g. on the behavior of the POSITIP 880. Warning – Refer to accompanying documents e.g. when a special tool is required for a function.

  • Page 7: Table Of Contents

    Incremental Workpiece Positions ..15 Position Encoders ..17 Reference Marks ..17 Angle Reference Axis ..18 I – 2 Working with POSITIP 880 – First Steps ..19 Power Up ..19 Before You Start ..19 Operating Modes ..21 On-Screen Operating Instructions (HELP Mode) ..
  • Page 8 I – 6 Programming POSITIP 880 ..53 Program Capabilities ..53 Editing and moving through a program ..53 Programming Features ..54 Tool Call ..56 Datum Call ..57 Presets ..58 Hole Patterns and Rectangle Patterns ..59 Subprograms ..
  • Page 9 I – 9 POSITIP 880 Turning Functions ..96 Power Up ..96 Fundamentals of Positioning ..97 Job Setup for Turning Applications ..98 Tool Table Usage ..99 Tool Offsetting ..102 NOTE/SET Function ..103 Datum Setting ..104 Taper Calculator ..
  • Page 10 II – 7 Specifications for Turning ..141 II – 8 Dimensions ..143 II – 9 Accessories ..144 Accessory ID Numbers ..144 POSITIP 880 Mounting Instructions Universal Mounting Arm ld. Nr. 382 929-01 ..145 POSITIP 880 Mounting Instructions Mounting base ld.

  • Page 11: I Operating Instructions

    Operating Instructions POSITIP 880...

  • Page 12: Fundamentals Of Positioning

    I – 1 Fundamentals of Positioning You can skip over this chapter if you are familiar with the concepts of coordinate systems, incremental and absolute dimensions, nominal and actual positions, and distance-to- Coordinate Systems In order to define positions on a surface, a reference system is required.

  • Page 13: Setting The Datum

    (e.g., to compensate the tool radius). Example: Drawing with several relative datums (ISO 129 or DIN 406 Part 11, Fig. 171) Fig. I.3 The workpiece datum represents the origin of the Cartesian coordinate system POSITIP 880...

  • Page 14: Nominal Position, Actual Position And Distance-To-Go

    X axis and 5 mm from it in the Y axis. See Fig. I.4. The KT Edge Finder from HEIDENHAIN, together with the POSITIP 880's edge finding functions, facilitates finding and setting datums. Fig. I.4 Hole 1 defines the coordinatesystem...

  • Page 15: Absolute Workpiece Positions

    IZ = –15 mm Fig. I.7 Positions 2 and 3 through incremental If you are drilling or milling a workpiece according to a drawing with coordinates incremental coordinates, you are moving the tool by the value of the coordinates. POSITIP 880...
  • Page 16 A coordinate list corresponding to this example is useful when working in the operating mode: PROGRAMMING. See Fig. I.8 Fig. I.8 Workpiece drawing with coordinate dimensioning (ISO 129 or DIN 406 Part 11, Fig. 179) Coordinateorigin Dimensions in mm Coordinates Pos.

  • Page 17: Position Encoders

    See Fig. I.10. When a reference mark is crossed over, it generates a signal which identifies that position as the reference point. The POSITIP 880 uses this reference point to restore the relationship between the scale position and the display value which was last defined by setting the datum.

  • Page 18: Angle Reference Axis

    Angle Reference Axis For angular positions, the following reference axes are defined: Plane Angle reference axis Positive direction of rotation is counterclockwise if the working plane is viewed in negative tool axis direction. See Fig. I.11. Example: Angle in the working plane X / Y Angle Corresponds to the...

  • Page 19: Working With Positip 880 - First Steps

    Contents for turning functions section. See Fig. I.12. You can change the application later in INSTALLATION SETUP under COUNTER SETTINGS. Your POSITIP 880 is now ready for operation and is in the operating Fig. I.12 Initial screen mode ACTUAL VALUE. Axis will show “NO REF”.
  • Page 20 When the ENABLE REF soft key is pressed, the POSITIP 880 is ready to identify a reference mark. When the ENABLE REF soft key is not depressed, POSITIP 880 will ignore all reference marks.

  • Page 21: Operating Modes

    Run programs previously created in EXECUTE PROGRAM the PROGRAMMING mode You can switch to another operating mode at any time by pressing the key for the desired mode. In the following examples requiring tool usage, refer to chapter I-8 under Job Setup. POSITIP 880...

  • Page 22: On-Screen Operating Instructions (Help Mode)

    On-Screen Operating Instructions (HELP Mode) The integrated operating instructions provide information and assistance in any situation. See Fig. I.14 & Fig. I.15. To call the operating instructions: Press the INFO soft key. Press the HELP soft key. Information relevant to the current operation will be displayed. Use the paging soft keys if the explanation is spread over more than one screen page.

  • Page 23: Messages

    Error messages will appear as red boxes with white text. Error messages If an error occurs while you are working with POSITIP 880, the Message bar will turn red and provide an explanation of what caused the error.

  • Page 24: Selecting The Unit Of Measure

    You can enter up to 99 tools. Before you start workpiece machining, select the tool you are using from the tool table. POSITIP 880 will then take into account the entered diameter and length of the tool. The tool length is the difference in length ∆L between the tool and the reference tool.

  • Page 25: Calling The Tool Data

    POSITIP 880's tool table. Before you start machining, select the tool you are using from the tool table. POSITIP 880 then takes into account the stored tool data when you work with tool compensation (e.g., with hole patterns). You can also call the tool data with the command TOOL CALL in a program.

  • Page 26: Actual Value

    Datum Setting: Approaching Positions and Entering Actual Values The easiest way to set datum points is to use the POSITIP 880's probing functions – regardless of whether you probe the workpiece with the HEIDENHAIN KT Edge Finder or with a tool. Description of the probing functions: See "Probing Functions for Datum Setting"...
  • Page 27 Select the X axis key. DATUM SETTING X Enter the position of the tool center (X = – 1.5 mm) Fig. I.19 transfer the X-coordinate of the datum and press ENT. Touch the workpiece at edge 2. Select the Y axis key. POSITIP 880...

  • Page 28: Probing Functions For Datum Setting

    Enter the position of the tool tip (Z = 0 mm) and transfer the Z-coordinate of the datum. Press USE. Probing Functions for Datum Setting It is particularly easy with a HEIDENHAIN KT 130 Edge Finder (Fig. I.20). During probe functions, the display freezes with the location of the edge, centerline, or circle center.
  • Page 29 Enter the desired length and confirm with ENT. Enter the desired unit of measurement (inch/mm). Press USE, then USE NEW SETTINGS. In all probing functions, POSITIP 880 takes into account the entered stylus diameter. To abort the probing function While the probing function is active, POSITIP 880 displays the CANCEL soft key.
  • Page 30 Example: Probe workpiece edges, and set the corner as a datum. See Fig. I.21 & Fig. I.22. Datum axis: X = 0 mm Y = 0 mm The coordinates of the datum can be set by probing edges or surfaces and capturing them as datums as described on the next page.
  • Page 31 2. PROBE 1ST EDGE IN X Move the edge finder toward workpiece edge until the LEDs in the edge finder light up. The distance between the edges is displayed on the message bar. Fig. I.24 Retract the edge finder from the workpiece. POSITIP 880...
  • Page 32 ENTER VALUE FOR X Enter coordinate (X = 0 mm) and transfer coordinate as datum for the centerline and press ENT. Press USE soft key. Example: Probe the center of a hole with an edge finder and set the datum. Offsetting X-axis datum by 50 mm from center of hole.
  • Page 33 Enter the first coordinate (X = 50 mm) and transfer coordinate as datum for the circle center and press ENT. ENTER CENTER POINT Y Y = 0 Accept default entry Y = 0 mm. Press ENT. Press USE. POSITIP 880...

  • Page 34: Datum Setting With A Tool

    Datum Setting with a Tool Even if you use a tool or non-electrical edge finder to set datum points, you can still use POSITIP 880's probing functions described under the section “Datum setting with the Edge Finder.” EDGE, CENTER LINE and CIRCLE CENTER.
  • Page 35 ENTER VALUE FOR X Enter coordinate of the tool center (X = -1.5 mm) and transfer coordinate as datum for the center line and press USE soft key. POSITIP 880...

  • Page 36: Distance-To-Go

    Make sure you are in DISTANCE-TO-GO mode. Graphic positioning aid When you are traversing to display value zero, POSITIP 880 displays a graphic positioning aid. See Fig. I.29. POSITIP 880 displays the graphic positioning aid in a narrow rectangle underneath the currently active axis.
  • Page 37 Once the axis is moved to zero the axis value is incremented to axis value in the next block. Press the NEXT BLOCK soft key to advance. POSITIP 880...
  • Page 38 Select the X axis key. NOMINAL POSITION VALUE Enter nominal position value for corner point 2: Y = +30 mm, select tool radius compensation R – and press USE soft key. Transfer the nominal position value. The graphic positioning aid for the X axis is displayed. Traverse the X axis until the display value is zero.
  • Page 39 Traverse the X axis until the display value is zero. The square in the graphic positioning aid is now centered between the two triangular marks. Once the axis is moved to zero it will increment to next block. Press the NEXT BLOCK soft key. POSITIP 880...
  • Page 40 Example: Drilling by traversing to display value zero Enter the coordinates in incremental dimensions. These are indicated in the following (and on the screen) with a preceding I. The datum is the workpiece zero. See Fig. I.33 & Fig. I.34. Hole at: X = 20 mm / Y = 20 mm to hole 1: IX = 30 mm / IY = 30 mm...
  • Page 41 Once the axis is moved to zero it will increment to next block. Press the NEXT BLOCK soft key. Select the Y axis key. POSITIP 880...
  • Page 42 NOMINAL POSITION VALUE Enter nominal position value for hole 2: Y = 30 mm, mark your input as an incremental dimension, press I hard key. Select tool radius compensation R0 by pressing TOOL COMP (R0) soft key. Press USE. The graphic positioning aid for the Y axis is displayed.

  • Page 43: Milling Patterns

    This data can usually be taken from the workpiece drawing (e.g. hole depth, number of holes, dimensions of the pocket, etc.). With hole patterns, the POSITIP 880 then calculates the positions of all the holes and displays the pattern graphically on the screen. With pocket milling, it calculates all of the traverse paths for the roughing out of the pocket.
  • Page 44 Functions for drilling Function Soft key Press to go to previous hole. Press to manually advance to the next hole. Press to end drilling. Example: Enter data and execute a circle pattern. See Fig. I.35 & Fig. I.36. Holes (no. of): 4 Coordinates of center: X = 50 mm / Y = 50 mm Bolt circle radius: 20 mm Start angle: Angle between X axis and first hole: 30°...
  • Page 45 Press ENT. When in TOOL field enter the TOOL TABLE and select the desired tool. Press USE soft key to begin step. Pressing the VIEW () soft key will toggle through the different views of the pattern (Graphic, etc.). POSITIP 880...

  • Page 46: Linear Pattern

    Number of rows (number of rows in the pattern) Row spacing (the spacing between each row of the pattern) POSITIP 880 calculates the coordinates of the holes which you then move to simply by traversing to display value zero. The graphic positioning aid is available for all moving axes.
  • Page 47 Operating mode: DISTANCE-TO-GO Press FEATURES soft key. Press LINEAR PATTERN. Begin data entry. FIRST HOLE X AND Y Enter the coordinates of first hole (X = 20 mm). Fig. I.38 Press ENT. Y = 15 mm. Press ENT. POSITIP 880...
  • Page 48 HOLES PER ROW Enter the number of holes per row (4). Press ENT. HOLE SPACING Enter the space between holes (10). Press ENT. ANGLE Enter the angle of rotation (18°). Press ENT. DEPTH Enter the depth for drilling (THRU). Press ENT. NUMBER OF ROWS Enter the number of rows (3).

  • Page 49: Milling A Rectangle Pocket

    When pattern is complete, press the END soft key. Milling a Rectangle Pocket In the operating mode DISTANCE-TO-GO you can use the POSITIP 880 for milling a rectangle pocket. The information for rectangle pocket milling can also be written to a machining program as a cycle.
  • Page 50 Rectangle pocket milling in programs The POSITIP 880 makes the roughing out of rectangle pockets simple: You just enter the dimensions for the pocket, and the POSITIP 880 calculates the rough-out paths. Execution of cycle The execution of the cycle is represented in the figures to the right.
  • Page 51 Fig. I.40 Rectangle pocket programming graphic CENTER Enter the X and Y dimensions for the pocket center. Press ENT. SIZE Enter the X and Y dimensions for the side. Press ENT. DIRECTION Enter the direction of rotation (counter-clockwise). Press ENT. POSITIP 880...
  • Page 52 FINISH ALLOWANCE Enter the amount of finish allowance (0.5). Press ENT. When you cursor to the TOOL field, press TOOL TABLE soft key. Select tool and press USE. Tool will enter into the TOOL field. 2nd step: Mill a rectangle pocket After you have entered all of the required data, start the RECTANGLE POCKET cycle and position the axes by traversing to zero.

  • Page 53: Programming Positip 880

    I – 6 Programming POSITIP 880 Program Capabilities Operating mode: PROGRAMMING This section describes the programming capabilities of the POSITIP 880. The programs can be edited in program memory and executed in the EXECUTE PROGRAM mode. The operator can load, save or delete a program from internal storage in FILE OPERATIONS.

  • Page 54: Programming Features

    Programming Features The PROGRAMMING mode has a PROGRAMMING FEATURES soft key which shows all the blocks that can go into a program. Below is a list of PROGRAMMING FEATURES soft keys. Operating mode: PROGRAMMING Function Soft key Opens the TOOL CALL block which is used to select a specific tool number from the tool table at run-time.
  • Page 55 MORE soft key allows the operator to toggle through the different soft keys rows. Some programming features provided by the Positip 880, such as Arcs, Blends and Chamfers, are not easily machined on a manually operated machine. These tool paths require two axes with simultaneously controlled motion.

  • Page 56: Tool Call

    Tool Call The TOOL CALL is used to select a specific tool number from the tool table at run-time, for instance during a program. The block specifies a tool number and an optional tool axis. See Fig. I.42. Calling a tool Refer to Job Setup for how to enter the length and diameter of your tools in the tool table.

  • Page 57: Datum Call

    I.43. Datum call The POSITIP 880 can store up to 99 datums in a datum table. You can call a datum point from the datum table during a program run by simply pressing the DATUM CALL soft key and entering the block DATUM XX.

  • Page 58: Presets

    Presets The operator uses the PRESET function to establish a nominal position on an axis to which to move. Use the PRESET form to enter the desired preset value. The PRESET form allows for entering one or more axis presets. However, multiple axis presets are entered into the program as separate preset blocks.

  • Page 59: Hole Patterns And Rectangle Patterns

    Select the MORE soft key to advance to the second soft key row. Insert a label (LBL) for a subprogram. Fig. I.46 LABEL form LABEL NUMBER Enter a label number (1). Press USE. The current block now contains the label LBL #1. POSITIP 880...

  • Page 60: Label Number

    LBLCALL, such as LABEL CALL (REPEAT), LABEL CALL (ROTATE), LABEL CALL (MIRROR). The command LBL CALL 0 is not allowed. After a LBL CALL block is inserted into the program, POSITIP 880 executes the called subprogram. LABEL CALL REPEAT This form is used to call a subprogram 1 or more times.
  • Page 61 Press USE. After the LBL CALL block in the operating mode EXECUTE PROGRAM, the POSITIP 880 executes those blocks in the subprogram that are located between the LBL block with the called number and the next block containing LABEL 0. All subprograms should start with a label number (1 to 99) and end with a label 0.

  • Page 62: Position Drill

    POSITION DRILL function will move your table to the position you want based upon your desired X and Y values. In the operating mode PROGRAMMING you can use the POSITIP 880 for a position drill. Select the cycle with the POSITION/DRILL soft key, and enter the required data.

  • Page 63: Milling A Line

    Milling a Line In the operating mode PROGRAMMING you can use the POSITIP 880 for milling a line. Lines are defined by their “FROM” point (the point where they begin) and “TO” point (the point where they end). There are two ways you can program a line:...

  • Page 64: Milling An Arc

    Enter the tool offset. Press ENT. Press USE. Milling an Arc In the operating mode PROGRAMMING you can use the POSITIP 880 for milling an arc. See Fig. I.50. There are two ways you can program an arc: With a from point, to point and a radius...
  • Page 65 FROM Y1 Enter the from point for Y. Press ENT. TO X2 Enter the to point for X. Press ENT. TO Y2 Enter the to point for Y. Press ENT. CUT DEPTH Enter the cut depth. Press ENT. POSITIP 880...

  • Page 66: Blend

    A blend is a semi-circular fillet which connects two adjacent blocks within a program. The two blocks may be two lines, two arcs, or a line and an arc. The POSITIP 880 calculates the location of the arc to transition smoothly from the previous block to the next. The two blocks do not have to intersect or touch;...
  • Page 67 Pressing the CLOSE CONTOUR soft key causes the blend to connect the first block in the current path instead of the next block. The block number shown in the “TO” field will change. When the desired data has been entered, press USE. POSITIP 880...

  • Page 68: Chamfer

    Chamfer A chamfer is an angled cut which connects two adjacent line blocks within a program. The POSITIP 880 calculates the location of the chamfer. The two lines do not have to intersect or touch, however, if they do touch, the lengths are calculated from their intersection points.
  • Page 69 Pressing the CLOSE CONTOUR soft key causes the chamfer to connect the first block in the current path instead of the next block. The block number shown in the “TO” field will change. When the desired data has been entered, press USE. POSITIP 880...

  • Page 70: File Operation Soft Keys

    POSITIP 880 to an external device (PC or printer). Loading, saving, deleting & clearing a program POSITIP 880 allows you to load programs from internal storage to current program memory. To load or delete a program: Press the FILE OPERATIONS soft key.

  • Page 71: Directories

    Press the FILE OPERATIONS soft key. Press CLEAR soft key. Confirm with Yes. Directories POSITIP 880 allows the operator to create directories in which to maintain and store part programs. Press the MORE soft key to access these functions. Function...
  • Page 72 Selecting a directory To select a directory: Press the FILE OPERATIONS soft key. Press MORE soft key. Press the SELECT DIRECTORY soft key. Choose the desired directory and press SELECT. Creating a directory To create a directory: Press the FILE OPERATIONS soft key. Press MORE soft key.

  • Page 73: Importing A Program

    Setup the PC host terminal program to send the program file as ASCII text data. If you are importing programs into POSITIP 880 from a PC, the PC must send the programs. POSITIP 880 will load the new program into program memory only.

  • Page 74: Exporting A Program

    Exporting a Program Example: Exporting a program from POSITIP 880 Setup the PC host terminal program to receive the ASCII text data and to save the data to a file. Press FILE OPERATIONS Press MORE (twice) Press EXPORT PROGRAM If you are transferring programs from POSITP 880 to a PC, the PC must be ready to receive the program before pressing EXPORT PROGRAM.
  • Page 75 (CALL LABEL REPEAT, ROTATE and MIRROR) or positions (hole patterns) that made up the original block. Highlight the block you want to explode. Press the BLOCK FUNCTIONS soft key. Press the EXPLODE soft key. POSITIP 880...
  • Page 76 Deleting, copying and moving program blocks You can delete, copy or move a range of blocks. When a block is deleted, POSITIP 880 automatically renumbers the remaining blocks. The block after the deleted block then becomes the current block.
  • Page 77 Move the cursor to the line block to be trimmed. Press the TRIM PATH soft key. The end point of the last line and the start point of the first line in the path will be set to the point where both lines intersect. POSITIP 880...

  • Page 78: Executing A Program

    I – 7 Executing a Program Preparing to Run a Program When you are ready to run a program, you must be in the EXECUTE PROGRAM mode. Press the EXECUTE PROGRAM hard key, then the FILE OPERATIONS soft key, press the LOAD soft key, scroll to the desired program, then press the LOAD soft key again.
  • Page 79 Press to advance to the next step in a pocket pattern. Used in SINGLE BLOCK or AUTOMATIC mode for the operator to advance manually to the next block within a program. Press to abort the AUTOMATIC or SINGLE BLOCK mode and return to the previous screen. POSITIP 880...

  • Page 80: Program Views

    Program views The POSITIP 880 allows the operator to see several different views of the current operation. After choosing SINGLE BLOCK or AUTOMATIC to begin an operation, the soft key on the far left will offer several viewing options starting with VIEW (PGM/DRO). Toggle through to choose other view options.

  • Page 81: Contour View

    JOB SETUP. The gap between the tool path and the tolerance band represents the allowable deviation from the tool path. The inside tolerance band is shown in red. The outside tolerance band is shown in green. Fig. I.59 Test program in contour view POSITIP 880...
  • Page 82 Positions and hole patterns For positions and hole patterns, the position or center of the hole is shown as a cross-hair. A circle around the position/hole location represents the tolerance band. When the center of the tool icon is within the circle, the cutting is within the tolerance band.

  • Page 83: Info Screen

    Press USE NEW SETTINGS to return to the INFO screen. To access the JOB SETUP menu: Press the INFO soft key. Press the JOB SETUP soft key. The cursor will default to the first selection on the menu: TOOL TABLE POSITIP 880...
  • Page 84 The tool table will support up to 99 tools containing information on the diameter, length and type. The length offset may be entered as a known value or the POSITIP 880 may determine the offset automatically. See Fig. I.61. The following soft keys are available:...

  • Page 85: Tool Table Usage

    Tool length: 25.000 Tool unit: mm Tool type: flat end mill It is also possible to have POSITIP 880 determine an offset. See alternative example below. Press the INFO soft key, then the JOB SETUP soft key. The cursor will default to the TOOL TABLE field.
  • Page 86 If a tool presetter is used to measure the length of a tool, enter the tool length (25 mm) and press ENT. It is also possible to have POSITIP 880 determine an offset. This method involves touching the tip of each tool to a common reference surface.
  • Page 87 Select the axis by pressing one of the soft keys. Press USE, then USE NEW SETTINGS soft key. Tool selection and tool axis selection take effect immediately. Pressing the CANCEL CHANGES soft key does not restore the previous settings. POSITIP 880...
  • Page 88 Datum table (milling only) The datum table shows the absolute locations of the datums relative to the reference mark. Normally the datums are set using the datum and probe functions in actual value mode. It is also possible to set the datum values directly if necessary.
  • Page 89 /or parallel ports. Output of the current display positions is activated via an external hardware signal (requires optional Auxiliary Machine Interface) or via a command (Ctrl B) sent to POSITIP 880 over the serial port. The Measured Value Output form is used to set data output during probing operations to On or Off.
  • Page 90 Graphic positioning aid The GRAPHIC POSITIONING AID form is used to configure the bar graph that is shown below the axes’ DRO display in DISTANCE-TO- GO mode. Each axis has its own range. See Fig. I.66. Press the ON soft key to enable or simply begin entering values using the numeric keys.
  • Page 91 The display saver setting is the amount of time the system is idle before the display is turned off. The idle time may be set from 30 to 120 minutes. The display saver can be disabled during the current power cycle. POSITIP 880...

  • Page 92: Installation Menu

    Refer to the Technical Information section for Installation Setup chapter. Calculator POSITIP 880’s calculator is capable of handling everything from simple arithmetic to complex trigonometry and RPM calculations. The numeric keypad acts as a standard calculator with keys for numbers 0 through 9, a decimal point, a positive/negative sign (+/-) and CE to clear an entry.
  • Page 93 If you were to enter 3 + 1 / 8, POSITIP 880 will divide one by eight, then add three for an answer of 3.125.
  • Page 94 Whenever you're calculating the SIN, COS or TAN of an angle, enter the angle first and then press the appropriate soft key. If you were to enter a value of 30 into a numeric field, then press the SIN soft key, a value of 0.5 (the SIN of 30 degrees) would appear.

  • Page 95: Language

    Language The POSITIP 880 supports multiple languages. To change the language selection: Press INFO. Press the LANGUAGE soft key. Press the LANGUAGE soft key until the desired language selection appears on the soft key. Press USE and confirm your selection. The system will restart.

  • Page 96: Positip 880 Turning Functions

    4 sections of this manual for information common to both milling and turning applications. Fig. I.72 Initial screen Your POSITIP 880 is now ready for operation and is in the operating mode ACTUAL VALUE. I Operating Instructions...

  • Page 97: Fundamentals Of Positioning

    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. See Fig. I.74. Fig. I.74 The Cartesian coordinate with lathe work POSITIP 880...

  • Page 98: Job Setup For Turning Applications

    Job Setup for Turning Applications Two of the features in this JOB SETUP menu are unique to turning applications (DIAMETER AXES, OVERSIZE). See chapter I-8 Job Setup Menu for descriptions of the other general Job Setup features. See Fig. I.75. The JOB SETUP menu is accessed by pressing the INFO soft key, then the JOB SETUP soft key.

  • Page 99: Tool Table Usage

    Press the INFO soft key, then the JOB SETUP soft key. The cursor will default to the TOOL TABLE field. Press ENT. TOOL TABLE Cursor to the tool you want to define or enter the tool number. Press ENT. POSITIP 880...
  • Page 100 TOOL DESCRIPTION If a tool presetter is used to measure the length of a tool, enter the tool offset (25 mm) and press ENT. Press USE soft key twice, then the USE NEW SETTINGS soft key once. The tool table may be protected to prevent changes from being made to the tool information.
  • Page 101 Radius/Diameter Display Drawings for lathe parts usually give diameter values. POSITIP 880 can display either the radius or the diameter for you. When the diameter is being displayed, the diameter symbol (Ø) is shown next to the position value. See Fig. I.78.

  • Page 102: Tool Offsetting

    Tool Offsetting The POSITIP 880 can store the dimensional offsets for up to 99 tools. When you change a workpiece and establish a new datum, all tools are automatically referenced from the new datum. Before you can use a tool, you must enter its offset (the cutting edge position).

  • Page 103: Note/Set Function

    Fig. I.80 NOTE/SET Form Turn the first diameter in the X axis. Press the NOTE soft key. Retract from the current position. Measure the workpiece distance. Enter the measured distance or radius, for example, 15 mm and press ENT. Press USE. POSITIP 880...

  • Page 104: Datum Setting

    Datum Setting Example: Setting the workpiece datum (zero point) The datum is set to zero for the display of the Z axis. All tool data entered are automatically referenced to this datum. Operating mode: ACTUAL VALUE Machine the workpiece face. Leave the cutting edge of the tool at the face.
  • Page 105 To calculate angles using the ratio of the diameter to the length, press the TAPER RATIO soft key. Using the numeric keys, enter data into the RADIUS and LENGTH fields. Press ENT after each selection. The calculated ratio and the angle will appear in their respective fields. POSITIP 880...

  • Page 106: Programming Turning Functions For Positip 880

    Program capabilities Operating mode: PROGRAMMING This section describes the programming capabilities of the POSITIP 880. The operator can load, save or delete a program from internal storage in FILE OPERATIONS. The CLEAR function clears the current program in memory. Function Soft key Allows access to all programming features.

  • Page 107: Multipass

    The multipass cycle contains all information required for the operation. Do not delete any blocks from the cycle. When the program is operating, POSITIP 880 will display the distance- to-go to the two nominal positions immediately following the cycle block. See Fig. I.84.

  • Page 108: File Operation Soft Keys

    Operating mode: PROGRAMMING Press the PROGRAMMING FEATURES soft key. Press the MULTIPASS soft key. The program block MULTIPASS appears on the screen. X AXIS Enter the nominal position the X axis. X = 10 Press ENT or cursor to the Z axis. Z AXIS Fig.

  • Page 109: Block Function Soft Keys

    Allows the operator to transfer a program from POSITIP 880 to an external device (PC or printer). Refer to File Operations in chapter I-6, „Programming POSITIP 880”. Block Function Soft Keys A block is a single step or a series of steps that make up a program.
  • Page 110 CHANGING PROGRAM BLOCKS. (SEE FIG. I.85) OPERATING MODE: PROGRAMMING From within BLOCK FUNCTIONS, press the CHANGE BLOCKS soft key. Select the range of blocks you want to change (FIRST and LAST). Press ENT after each selection. Enter the tool offset, either OUTSIDE or INSIDE. Press USE.

  • Page 111: Technical Information

    Technical Information POSITIP 880...

  • Page 112: Installation And Electrical Connection

    Locate the unit in a well ventilated area such that it may be easily accessed during normal operation. Installation M4 screws are used to secure POSITIP 880 from below. For the hole locations: see chapter II-8 Dimensions. Electrical connection There are no serviceable items within this unit. Therefore, the POSITIP 880 should not be opened.
  • Page 113 Minimum cross-section of the connecting wire: 6 mm , see Fig. II.2. Preventative maintenance No special preventative maintenance is necessary. For cleaning, wipe lightly with a dry lint-free cloth. Fig. II.2 The protective conductor terminal on the rear panel. POSITIP 880...

  • Page 114: Connecting The Encoders

    Connecting the Encoders POSITIP 880 can be used with HEIDENHAIN linear and rotary encoders that provide sinusoidal output (11µApp or 1Vpp) or EnDat (Encoder Data). The encoder inputs on the rear panel are designated X1, X2, X3, X4, X5 and X6. See Fig. II.3 & Fig. II.4.

  • Page 115: Connecting An Edge Finder

    Fig. II.4 Encoder inputs on rear panel. Connecting an Edge Finder Connect the HEIDENHAIN Edge Finder to the D-sub input X10 on the rear panel. Adapt POSITIP 880 for use with the Edge Finder through the following operating parameters: Stylus length Stylus diameter Description of operating parameters see Job Setup chapter.

  • Page 116: Installation Setup

    II – 2 Installation Setup Initial switch-on When you switch on power to your POSITIP 880 for the first time, the screen shown in Fig. II.6 appears. You can now select the appropriate language and the type of application (milling or turning).

  • Page 117: General Field/Form Navigation Guide

    X axis coordinates along Fig. II.9 AXES CONFIGURATION form (milling) the vertical axis. If your configuration differs from this, press the HORIZONTAL or VERTICAL soft keys to select the appropriate axes. POSITIP 880...

  • Page 118: Encoder Setup

    Encoder Setup The ENCODER SETUP is used to set the encoder resolution and type (linear, angular), count direction, reference mark type. See Fig. II.10. Cursor to the ENCODER SETUP to open a list of 6 possible encoders. Cursor to the encoder you want to change and press ENT. The ENCODER SIGNAL field will already be determined.

  • Page 119: Error Compensation

    You can determine these errors with a reference measurement system, e.g. the VM 101 from HEIDENHAIN or with gauge blocks. From an analysis of the error it can be determined which form of compensation is required, linear or non- linear error.

  • Page 120: Linear Error Compensation

    Linear Error Compensation Linear error compensation can be applied, if the results of the To calculate the linear error compensation use this comparison with a reference standard show a linear deviation over the formula: whole measuring length. In this case the error can be compensated by the calculation of a single correction factor.

  • Page 121: Non-Linear Error Compensation

    The required correction values are calculated and entered in a table. POSITIP 880 supports up to 128 points per axis. The error value between two entered adjacent correction points is calculated with linear interpolation.
  • Page 122 Direct Entry If known, the encoder’s error information may be entered directly. Press the DIRECT ENTRY soft key. An ERROR INTERVAL form will open beside the compensation table. Enter both the measured value and the error at that value in the form and press the USE soft key.

  • Page 123: Serial Port (X31)

    A file will only be sent to the parallel port if the external device is ready. If the external device is not ready an error message will appear. Fig. II.15 PARALLEL PORT form POSITIP 880...

  • Page 124: Protection

    Protection The protection feature lets you prevent changes to part programs, the tool table and datum 0. See Fig. II.16. Two soft keys are available ON and OFF. The default is OFF. To protect a feature use the ON soft key. When the program protection is set to ON, part programs cannot be changed or saved.

  • Page 125: Diagnostics

    Fig. II.19 Example of a signal plot System statistics displays the amount of time both the display and the system have been on. It also shows the total distance traveled for each encoder. Press EXIT TEST to exit the System Statistics mode. POSITIP 880...

  • Page 126: Ami (Auxiliary Machine Interface)(X51) (Optional)

    AMI (Auxiliary Machine Interface)(X51) (Optional) If AMI hardware is connected to the POSITIP 880, the SWITCHING OUTPUTS form will be available from the installation setup list box. The AMI hardware may be configured with 8 output relays. See Fig. II.20.

  • Page 127: Remote Console (X61) (Optional)

    The remote console functions as duplicate POSITIP 880. The same images display upon both consoles and either keypad may be used for any function. The POSITIP 880’s remote console is interfaced via X61. The remote console is equipped with an interface cable that connects to the POSITIP 880’s remote console connection (X61).

  • Page 128: Encoders And Measured Value Display

    These tables describe all operating parameters which you must set for the encoders and measured value display. Most entries can be found in the operating instructions for your encoder. Example settings for HEIDENHAIN linear encoders with 11-µA signals Encoder Signal period...

  • Page 129: Setting The Display Step With Rotary Encoders

    With rotary encoders, the display step depends on the line count of the encoder and the angle display step Both parameters are entered separately for each rotary axis. Example settings for HEIDENHAIN rotary encoders Encoder Line count Reference marks ROD 250, RON 255...

  • Page 130: Data Interface

    The parallel port only allows data to be exported to an external device. Data which can be exported from the POSITIP 880 to an external serial or parallel device includes: User part programs...
  • Page 131 POSITIP 880 and the PC is in ASCII text format. To export data from the POSITIP 880 to a PC, the PC must first be made ready to receive the data to save it to a file. Setup the terminal communication program to capture ASCII text data from the COM port to a file on the PC.
  • Page 132 The wiring of the connecting cable depends on the device being connected (see technical documentation for external device). Full wiring Before the POSITIP 880 and your PC can communicate, they need to be connected to each other with a serial cable. See Fig. II.23 & Fig. II.24.
  • Page 133 Key ‘Soft key 3’ <ESC>T0117<CR> Key ‘Soft key 4’ <ESC>T0118<CR> Key ‘Soft key 5’ <ESC>T0119<CR> Key ‘Soft key 6’ <ESC>T0131<CR> Key ‘Nominal Value’ <ESC>T0132<CR> Key ‘Distance-to-go’ <ESC>T0133<CR> Key ‘PGM-Execution’ <ESC>T0134<CR> Key ‘PGM-Edit <ESC>T0137<CR> Key ‘Cursor Up’ <ESC>T0138<CR> Key ‘Cursor Down’ POSITIP 880...
  • Page 134 Sequence of commands Function <ESC>T0140<CR> Key ‘I’ (incremental) <ESC>A0000<CR> Send device identification <ESC>A0200<CR> Send actual position <ESC>S0000<CR> Reset device <ESC>S0001<CR> Lock keyboard <ESC>S0002<CR> Release keyboard Parallel port The parallel port is located on the rear panel (see Fig. II.25 & Fig. II.26). The following devices can be connected to this port: Printer with “Centronics”...

  • Page 135: Measured Value Output

    Examples of character output at the data interface If you have a PC you can retrieve values from POSITIP 880. For activation, see Measured Value Output under Job Setup. In all three examples, measured value output is started with Ctrl B (sent over serial interface) or a switching signal at the EXT input (within optional Auxiliary Machine Interface).
  • Page 136 Example 2: Rotary axis with degrees decimal display C = + 1260.0000° 1 2 6 0 0 0 0 0 W <CR> <LF> Coordinate axis Equal sign +/– sign 4 to 8 places before the decimal point Decimal point 0 to 4 places after the decimal point Blank space W for angle (in distance-to-go display: w) Carriage return...
  • Page 137 2 to 7 places before the decimal point Decimal point 1 to 6 places after the decimal point Unit: blank space for mm, " for inches R for radius display, D for diameter display Carriage return Blank line (Line Feed) POSITIP 880...
  • Page 138 Example 6: Probing function Circle Center First center point coordinate, e.g. CCX = –1616.3429 mm, Second center point coordinate, e.g. CCY = +4362.9876 mm, (Circle Center X axis, Circle Center Y axis; coordinates depend on working plane) Circle diameter DIA = 1250.0500 mm 1 6 1 6 3 4 2 9 <CR>...

  • Page 139: Specifications For Milling

    11 µA , 1 V or EnDat (switchable); input frequency max. 100 kHz for incremental or absolute HEIDENHAIN encoders Signal period: 0.128 µm, 2 µm, 4 µm, 10 µm, 20 µm, 40 µm, 100 µm, 10 240 µm Line count:...
  • Page 140 POSITIP 880 Data Data interface Serial: RS-232-C/V.24 300 to 115 200 baud For output of programs, measured values and parameters; For input of programs and parameters Parallel: Centronics for output of measured values Switching inputs/outputs Upon request (via separate AMI input/output unit)

  • Page 141: Specifications For Turning

    11 µA , 1 V or EnDat (switchable); input frequency max. 100 kHz for incremental or absolute HEIDENHAIN encoders Signal period: 0.128 µm, 2 µm, 4 µm, 10 µm, 20 µm, 40 µm, 100 µm, 10 240 µm Line count:...
  • Page 142 POSITIP 880 Data Accessories Tilting base Remote console Main power input 100 V to 240 V (–15% to +10%) 50 Hz to 60 Hz (±3 Hz); power consumption 35 W Operating temperature 0 °C to 45 °C (32 °F to 113 °F)

  • Page 143: Dimensions

    II – 8 Dimensions Back view Front view with Dimensions SECTION A-A M4 THREAD Bottom view with Dimensions Side view POSITIP 880...

  • Page 144: Accessories

    II – 9 Accessories Accessory ID Numbers ID Number Accessories 382891-01 Pkgd, POSITIP 880 Brkt Kit, Tilt Swivel Mnt. 382929-01 Pkgd, Universal Mounting Arm, POSITIP 880 382892-01 Pkgd, Mounting Base POSITIP 880 378039-01 Pkgd, Remote Main Assy POSITIP 880 382930-01...

  • Page 145: Positip 880 Mounting Instructions Universal Mounting Arm

    POSITIP 880 Mounting Instructions Universal Mounting Arm ld. Nr. 382 929-01 HHCS 5/8-11 x 3“ SCSS 5/8-2“ x 1/2-13 x .8“ HHCS m16 x 75 mm HHCS m14 x 75 mm 5/8“ Flat Washer (2) Tilt/Swivel Assembly M6 x 12 mm...

  • Page 146: Positip 880 Mounting Instructions Mounting Base

    POSITIP 880 Mounting Instructions Mounting base ld. Nr. 382 892-01 POSITIP 880 M5 Shoulder Screw M5 Flat Washer M5 BHCS Spacer Washer Mounting Base II Technical Information...

  • Page 147: Positip 880 Mounting Instructions Tilt/Swivel Mount

    POSITIP 880 Mounting Instructions Tilt/Swivel Mount ld. Nr. 382 891-01 M8 x 30 SHCS Bracket (2) M8 Flat Washer (4) M8 x 55 mm Swing Bolt M8 Locking Hex Nut (2) 4 mm BHCS (4) POSITIP 880...
  • Page 149 Program blocks, deleting, copying and moving ... 76 Full part window ... 82 Program capabilities ... 53 Program section repeats ... 59 Program views ... 80 Graphic positioning aid ... 36 Program, exporting ... 74 Graphic positioning aid, function ... 90 POSITIP 880...
  • Page 151 Ve02 383 170-22 · 1 · 6/2005 · S · Printed in Germany · Subject to change without notice...

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