Delem da 56 руководство

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  Delem DA-56 Reference Manual Operation of Version V1 Manual version V0505…
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  PREFACE This manual describes the operation of the Delem controller type DA-56 and is meant for operators who are instructed for operation of the total machine. Only authorised people should be able to create new or edit existing programs, as well as pro- gramming or editing of the tooldata.

• Page 3: Table Of Contents

  1.8. Delem Limited warranty ……..

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  4. Product selection ……..4.1 4.1.
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  Delem • Corrections ……….9.4 •…
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  V0505, 0.6…

• Page 7: Operation Overview And General Introduction

  Delem Operation overview and general introduction 1.1. The control unit The control looks as follows: screen function keys arrows mode keys manual start/stop movement key num. keys The precise outfit of your control may vary. Operation of the control is done with the various keys on the front panel. A description of all keys and their functions is given in the next section.

• Page 8: Operation Modes

  1.2. Operation modes The control has the 4 following modes: Manual mode In this mode it is possible to program all parameters of just one bending. After pushing the start button all param- eters are active and the backgauge will go into position. It is also possible to move the axes manually.

• Page 9: Frontpanel

  Delem 1.3. Frontpanel The frontpanel, besides the 4 operation mode buttons, consists of the following items : Keyboard: 10 numerical keys (0- 9) incl. alphanumeric input decimal point plus/minus toggle clear key: Clearance of the input data field enter key, to confirm a…

• Page 10
  Manual movement of any axis (Y + backgauge axes) Softkeys; The function of these keys is stated at the bottom side of the monitor screen. End of menu program. It is also possible to leave a menu by pressing <ESC> on an external keyboard or clicking with the mouse on the menu symbol in the upper left corner.

• Page 11: Programming Mode

  Delem 1.4. Programming mode 1.4.1. The main menu Programming Select the programming mode. mode The main menu in programming mode looks as follows: Each of these menu items can be selected in several ways: enter the menu number and press ENTER…

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  Creation of a new CNC-program by data entry (numeri- cal). To edit an existing CNC-program by data entry (numeri- cal). To select a program out of the product library. Write programs to or read programs from a back-up medium. To program the dimensions of the upper tools. To program the dimensions of the under tools.

• Page 13: 1.4.2. Help Text

  Delem 1.4.2. Help text The control has been equipped with an online help text possibility. This help text is available when the question mark ‘<?>’ appears on the screen (lower right corner). To activate a help window for a parameter: press the question mark key (‘?’) on the frontpanel or…

• Page 14
  The help window can be used as follows: If the text is located in a single window, remove the window by pressing any key. If there is a lot of text across multiple windows, an arrow sign appears below the help symbol. Use the left and right arrow keys or click on the arrow symbols to browse back and forth through the help text.

• Page 15: 1.4.3. Listbox Functionality

  Delem 1.4.3. Listbox functionality Several parameters on the control have a limited number of possible values. Beside such parameters, the sign appears. This means that the key can be pressed to get a listbox with possible values of this parameter.

• Page 16: Graphical Programming

  1.5. Graphical programming From the main menu you can select one of the programming possibilities. In order to design or edit a new product, the graphical programming facility is present. This facility is a complete product design tool that allows you to draw the profile of your prod- uct.

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  Delem Zoom function: At bendsimulation overview in case of 2D-products (bendsequence menu and automatic mode): Enlargement Reducement Drawing cursor control for 2D-products In case you are drawing the profile of your product or tools the cursor keys can be used to give directly multiples 45 degree angles.

• Page 18: Network Option

  Vertical projection with L is normal entered line length V is vertical projected line length H is horizontal projected line length It will be noted on the screen if projection is not possible. 1.6. Network option The CNC control is equipped with a network interface. If activated, the network function offers the operators the possibility to import product files directly from the network directories or to export the finished product files to the required network directory.

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  Delem VA 2.1 VA stands for version 2 is version number 1 is version level The version number is increased when new features are added to the software, the level num- ber is increased when minor corrections are needed in the existing version number.

• Page 20: Delem Limited Warranty

  DA-control in normal operation or even when it fails to function according to its specifications. Delem provides the manual «as is» without warranty of any kind, either expressed or implied; including but not limited to the particular purpose. Delem may make improve- ments and/or changes in the product(s) and or program(s) described in the manual at any time.

• Page 21: Product Drawing/Product Edit For 2-Dimensional Products

  Delem Product drawing/Product edit for 2-dimensional products 2.1. Introduction With Menu selection 1 you can draw a new product. With Menu selection 2 you can make changes in an existing product. On this page you have to enter first the product number and then the drawing number. The drawing number may also contain alphanumeric characters, which can be entered with the help of the function key ‘alphanum’…

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  Function keys copy prod- Copy the current product. When pressed, you must enter a new product number for the new copy. draw. nr. Go to the screen with product number and drawing num- ber, in order to edit the drawing number. Thickness .
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  Delem Figure 2.c gives the definition of both the dimensions. Press the key to select the required setting. After entering the general product data the drawing screen appears. In the upper information row you will find the information about product number, drawing number and inside/outside dimensions selection.
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  In ‘product drawing’ or ‘product edit’ of a 2D product you can program up to a maximal of 25 bendings per product (graphical programming). Function keys: insert / Delete an angle/line or insert an angle, depending on the delete drawing cursor position (section 2.2). precision To define selected line segment, with round cursor, for high precision or if it is to be a «closing»…

• Page 25: Delete An Angle/Line Or Insert An Angle

  Delem 2.2. Delete an angle/line or insert an angle The function of softkey (S1) depends on the position of the drawing cursor. If the cursor is within a line segment, it is possible to insert a new angle to bend, in com- bination with the enter key.

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  Example: Line interval marked with the open circle should be, if possible, directly placed between back stop and the centre of the die. Notes: Specifying line intervals with high precision and closing dimensions may result in longer pro- duction time. Also it will have priority over the «front extend ratio», if that is set to «comply if possible».

• Page 27: Large Radius: Bumping

  Delem 2.4. Large Radius: Bumping To make a bend with a large radius, the control uses the bumping method. With this method, a large radius in a product is obtained by a series of slight bends in succession. To program such a bend, you must program the following parameters:…

• Page 28: Assignments

  Specification items: Radius input: min. value = 0.1 mm max. value = 2500.0 mm In the ‘assignments’ menu, it is possible to modify the way the radius bend is divided into seg- ments. See section 2.5 for more information. 2.5. Assignments Pressing ‘Assignments’…

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  Delem Function keys: previous page next page load To load default assignment settings. It is possible to defaults determine a set of assignments which have the most opti- mal values to work within your surrounding. This set can be stored into the internal memory by pressing softkey S4 (save as default).

• Page 30: Parameter Explanation

  • Parameter explanation Lay-on backstop limit ……..BL= This parameter (mm) is usefull in case the pressbrake has been equiped with back- gaugefingers on a moving R-axis, having a so-called “lay-on”…

• Page 31: Bend Sequence

  X-allowance DIN……… . .XA = For the calculation of the developed length and bend-allowance during the postprocess- ing of a graphical 2D product, a Delem formula is used. It is also possible to select the standard DIN-formula (DIN6935).

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  This selection will give an overview of the tools including the main properties of each tool. In your machine and tool library you can program 1 machine uppersides, 1 machine undersides (tables), 30 different dies and 30 different punches. One of each must be selected, and can also be changed during the bending sequence determination.
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  Delem The product, as it was drawn, is placed directly under the punch, at one of the last bending positions possible. The shape of your product before this last bend is placed on top of the die. A bigger circle on an angle indicates that this bending is also possible without collision.
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  With this function key you can switch the collision protection check on or off. This is indicated at the top of the screen. When you have selected collision «off» you can also select other bends which will give colli- sion with the tools or machine parts. The inner radius resulting after this bend is displayed at the top of the screen.
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  Delem When a bendsequence has been determined, a CNC program can be calculated and stored. This process is called postprocessing. When postprocessing is finished, the ‘blank length’ of the product is dis- played. Open a graphical overview of the bend sequence, in order to have a visual check.

• Page 36: Restoring A Bend Sequence

  Function keys: Enlarge Enlarge all bend pictures, thereby decreasing the number of bends shown on the screen. Reduce Shrink the bend pictures, thereby increasing the number of bends shown on the screen. Move bend In the graphical overview of the bendsequence, it is possible to change the order of bends sim- ply by moving a bend to another place.

• Page 37: Minimum Bending Length

  Delem ‘continue’ continue with current bend sequence, the existing (par- tial) bend sequence is restored and shown on the screen If you have loaded a drawing from which a postprocessed bending program already exists, there is a third option when you enter the bend sequence menu: ‘restore’…

• Page 38: Turn Indication

  In order to get a graphical overview of the available tools while you are in the bend sequence menu, press the function key ‘show library’ (S2). If pressed, an overview appears of available tools. Which type of tools is shown depends on which type was prompted in the bend sequence screen: punch, die, machine upper- or lowerside.

• Page 39: Function- And Control Keys Summary

  Delem Col.prot.on Collision and backgauge checks on or off Punch: 1 Punch number selected die: 1 Die number selected R-in = 1.3 Inner radius of the bend to be obtained with selected die Variants On Variants programming enabled: the product has a valid CNC pro- gram that can be modified from the graphical menu.

• Page 40: Store

  Function keys secondary row: show. To show a mosaic screen with a step-by-step graphical bendseq. overview of the bendsequence. show Softkey to get a graphical overview of the tool library. library Control keys: Zoom enlargement Zoom reducement • Store After you have completed the bend sequence a CNC-program can be generated. This generated program will be stored in the controller program memory.

• Page 41
  Delem When update (S4) is chosen, the existing CNC program is changed with regard to modified values (angle, length), but other values of bend parameters stay the same. The expression ‘re- use corrections’ refers to the corrections that may have been entered in one of the production modes.
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  If you choose ‘yes’ (S4), the indication ‘Variants On’ will disappear from the title bar. This means that the next time when a new ‘postprocess’ command is started, a new CNC program is built and old corrections will be lost. When ‘No’ (S5) is chosen, the action is cancelled and ‘Variants on’ remains.

• Page 43: Data Preparation/Data Edit

  Delem Data preparation/Data edit 3.1. Introduction To create a new CNC program, choose ‘Data preparation’ in the main menu. To edit an existing CNC program, choose ‘Data edit’ in the main menu. In both cases, a screen as shown below should appear. Programming and changing data is done in the same way for both modes.

• Page 44: Parameters Explanation

  After pressing the enter key the programmed value will be placed at the corresponding parameter. Function keys: first Bend The cursor jumps to the page with the first bend informa- tion. Finishing the data preparation and returning to the pro- gram menu.

• Page 45: Connecting Cnc Programs

  Delem has been processed from a 2D drawing, this value has been calculated. This parameter is also required for 2D visualisation in a production mode (Automatic or Step). Connect ……….CN The parameter «connect»…

• Page 46: Bend Programming

  3.2. Bend programming The parameters of one bend are divided over 2 screen pages. The bend number, product number and drawing number are displayed in the top row on the screen, the function of the «softkeys» in the bottom row. Function keys: prev.

• Page 47: Axis Functions

  Delem Function keys: axis func- axis functions, to change speed and retract distance of tions available axes in the current bend. This function is machine-dependant. all bends to the listing of all bends of this program (only possible in data-editing).

• Page 48: Parameter Explanation

  maximum possible speed. Retract Retract distance of the selected axis in the current bend. The distance is always programmed in millimeters. If the retract distance of the X-axis is altered in this window, the Retract parameter of the X-axis is automatically adjusted. •…

• Page 49
  Delem flattening The sheet is folded in two. This is possible after the sheet has been bent into a sharp angle in a previous bend. The control calcu- lates the precise Y-axis position for this action: the surface of the die plus twice the sheet thickness.
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  If you press ‘gauge func’ a window appears with three programmable parameters. Gauge pos……….GP With this function you can program another ‘gauge position’…
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  Delem (GN) = 3) gauge position = 3. lay on third level (only possible when number of gauge positions (GN) =4) When you program another ‘Gauge position’ the backgauge position changes, but the gauge position for the plate does not change. This means that the next two parameters ‘R-finger position’…

• Page 52: Parameter Explication (Second Page)

  ters active). 1 = Step change at muting position when the beam moves in opening direction. 2 = Step change at upper dead point. 3 = Step change at upper dead point without movement of any axis and the control goes to «stop».

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  Delem Repetition ……….CY 0 = bending is skipped.
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  Auxiliary axis ……….R/Z/Aux. If you have one or more auxiliary axes (for instance a R-axis, Z-axis or part support) the parameters of these axes appear here.
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  Delem Note: The last 2 parameters are used for graphic simulation of the product in a production mode (Automatic mode or Step mode). This visualisation does not require a product drawing, only these parameters must be programmed correctly. Furthermore, the parameter ‘Blank Length’…
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  Example: Product to make: 0 to 5 are possible backgauge positions. 1 to 4 are angle numbers. Bend Angle (AN) Backgauge (XN) V0505, 3.14…

• Page 57: List Of Bendings Of The Prepared Program

  Delem When in, for example, the 1st bend the plate must rest on the backgauge finger, see table below for programming values. Bend Angle (AN) Backgauge (XN) • List of bendings of the prepared program Pressing this softkey in the data editing mode will result in a complete overview of the bend- ings programmed.

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  Function keys: prev. bend To go to a previous bend when available. next bend To go to a next bend when available. insert bend To insert a new bend between one of the bends, select with the cursor keys first the bend after which a bend must be inserted.

• Page 59: Ending Data Preparation/Data Editing

  Delem that must be replaced. Then press the button ‘mark bend’ and the bend is highlighted. Now use the arrow key to move to the right place in the sequence. When the correct bend number is highlighted, press ‘move bend’. The bend will be inserted on the current place.

• Page 60: Special Edit Function

  3.3. Special edit function When a new program has been made and several tests are required, the operator can switch from «editing»-mode directly to the «auto»-mode and vice versa by pressing the particular mode buttons. When in «data editing» a specific bending is selected, the operator can now select the «auto- matic mode»…

• Page 61: Product Selection

  Delem Product selection 4.1. Introduction This chapter describes the menu ‘product selection’. In the «product selection» overview, a listing of all the programs which are present in the main memory is given. In the enter field a new product number or drawing number can be entered to select (load) a new program from the mainmemory.

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  Functions keys: previous Previous page with products overview page next page Next page with products overview view Button to select one out of three possible viewing modes: — normal dir. — dir. expand filter Function key to open a new button bar with extra function keys for product selection functions: — prod.

• Page 63: Expanded Directory

  Delem The other function keys cannot be selected here, until one of these three function keys has been chosen. The temporary bar will disappear again. When the function key ‘filter’ has been pressed a new, temporary button bar appears with addi-…

• Page 64: Search Function

  Expanded directory, a product overview which contains the following information for each product is displayed: • Product number • Drawing number • Number of bends • Type indication • Connected program (0 = no connection) • Selected tools (in first bend) •…

• Page 65: Directories

  Delem 4.2. Directories Bend programs on the control can be stored in different directories. This directory can be used for storage of the products. The active local directory name is displayed in the header. When the function key ‘local directory’ has been pressed in the product menu, a new window appears with an overview of directories on the control.

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  Function keys: Cursor key Select another subdirectory. Up/Dn Use the function key ‘select’ to make a subdirectory active. Press ENTER to look inside a sub- directory. To move up, go to the <PARENT> map and press ENTER. To select the directory you are currently in, go to and press ‘select’.

• Page 67: Programming Of Tools

  Delem Programming of tools 5.1. Introduction This chapter describes the programming of the tools and machine shapes. 5.2. Programming of Punches 5.2.1. The punch menu The programming of punches is started by choosing ‘Punches’ in the main menu. The punch profile can be created with help of the programming facilities of the control.

• Page 68: Edit Punch Drawing

  Function keys: previous To select a previous page within the several pages of the page punch library. next page To select the next page within the several pages of the punch library backup Save tools from library to disk. restore Load tools from disk into the control.

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  Delem Function keys: auto finish Finishing the tool outline to the top of the tool automati- cally change To change the height dimension of the tool height delete line To delete a line segment delete To delete the complete tool from the library…

• Page 70: Drawing Orientation Of The Punch On The Screen

  • Drawing orientation of the punch on the screen The right hand side of the tool is the backgauge side. The bottom point of the punch will be placed on the center line of the press brake shape. 5.2.2. Specific Punch Data Code.

• Page 71
  Delem Radius ………..RA The radius of the punch.
• Page 72
  cause inaccuracies in the tool height and the resulting Y-axis position. The control makes a distinction between two settings, ‘head mounted’ and ‘shoulder mounted’. 0 = shoulder mounted (default setting) 1 = head mounted Press the key to select the required setting. If ‘shoulder mounted’ is chosen, the Y-axis position is calculated from the standard tool height.

• Page 73: Programming Of Bottom Dies

  Delem 5.3. Programming of bottom dies 5.3.1. The die menu The programming of dies is started by choosing ‘Bottom dies’ in the main menu. A listing of the programmed dies is given. A die can be selected with the highlighted cursor.

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  Function keys: next page To select the next page within the several pages of the die library. backup Save tools from library to disk. restore Load tools from disk into the control. delete tool Remove tool from library. edit tool To edit the tool drawing or check the die data.
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  Delem The width V is the distance between the touching lines crossing. After entering these parameters you are ready to draw the important outer dimensions of your die. The right side of the die is the backgauge position. The mid-position of the V-opening will be placed on the centre line of the press brake shape.

• Page 76: 5.3.2. Specific Die Data

  5.3.2. Specific die data Code……….. . .C Alphanumeric tool name with a maximum 20 characters.

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  Delem Flattening height ……… . .FH The flattening height need to be programmed when you make use of a special flattening die to flatten your product.
• Page 78
  left side is used. These values are calculated each time the die drawing changes. These 2nd-values cannot be changed manually. H2 is the height of the 2nd-values. H2 is not visible on the screen. See for explanation upon the safety zones the example drawing. V0505, 5.12…

• Page 79: Machine Upper Side And Lower Side

  Delem 5.4. Machine upper side and lower side Function keys: backup Save tools from library to disk. restore Load tools from disk into the control. delete tool Remove tool from library. edit tool To edit the machine shape drawing or check the dimen- sions.

• Page 80
  centre. The length prompted after entering the height of the machine shape is the distance from the center line to the front side or the back side of the machine. For the lower side of the machine the height is defined from the table surface to the floor level. V0505, 5.14…
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  Delem V0505, 5.15…

• Page 82: Saving/Loading Of Tools

  5.5. Saving/loading of tools With the function key ‘save to disk’ (in any of the tool menus) the dialogue ‘Save Punches’ is opened. From this menu, it is possible to save tools to a back-up location. This procedure works the same for all tools and machine shapes and regardless of the back-up location (floppy disk, network).

• Page 83
  Delem Function keys: code Select on code instead of number. view Button to select one out of two possible viewing modes: — normal dir. — dir. expand For backup operations, it is possible to make use of subdirectories. Subdirectories can be cre- ated in this menu.
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  Function keys: remove Delete a subdirectory. If the subdirectory is not empty the subdir controller returns the message ‘UNABLE TO REMOVE DIRECTORY’. The ‘load tools’ procedure is different from the ‘save tools’ procedure. When you select ‘load tools’ the control checks if the toolnumber already exists in the control. If not, then the tool is automatically copied from disk to the control.

• Page 85: Products And Tools Back-Up

  Delem Products and tools back-up 6.1. Introduction This chapter describes the procedures to make a back-up of your products and tools. The procedures for saving or reading data are similar for all types of back-up media: floppy disk, network or USB disk.

• Page 86: Directory Navigation

  6.2. Directory navigation When softkey ‘backup directory’ is pressed, a new window appears with a list of available back-up directories. In this window you can browse through the directory structure of your back-up device. Press ENTER to look inside a subdirectory. To move one level up, go to the <PARENT> map and press ENTER.

• Page 87: Product Backup

  Delem Function keys: remove Delete a subdirectory. If the subdirectory is not subdir empty the controller returns the message ‘UNABLE TO REMOVE DIRECTORY’. 6.3. Product backup To make a back-up of programs to disk, choose ‘Product backup’ in the main menu.

• Page 88
  When ‘backup products’ has been selected, a screen like shown below should appear. At the top of the screen, the back-up location is shown. If this location is not correct you can change the subdirectory with the softkey ‘backup directory’ or you should go to the program constants menu to change the device where products are saved to.

• Page 89: Tool Back-Up

  Delem Function keys: Button to select one out of two possible viewing view modes: — normal dir. — dir. expand — graph. dir. A back-up operation is carried out unconditionally. When a restore operation is started, the control checks whether the product is already present on the control. If it is, you are asked whether to replace the existing product or to cancel the restore operation.

• Page 90
  Function keys: restore tools restore all tools from disk. backup direc- change, make or remove backup directory tory To load or save only a few tools, go to the specific menus of those tools and save or load each tool individually. This has been explained in detail in the chapter about tools. A restore operation runs similar to a back-up operation, when it is started a warning is given that the existing tools on the control will be replaced by the tools that are imported.

• Page 91: Program Constants

  Delem Program Constants 7.1. Introduction Choose ‘Program constants’ in the main menu to program the programming constants. The program constants are divided across several pages. They are discussed in the following sec- tions. 7.2. General Inch-select 1/0 ……….IS…

• Page 92
  Language selection ………LA 0 = GB (English) 10=P…

• Page 93: Materials

  Delem 7.3. Materials In this window, material properties can be programmed. You can edit existing materials, pro- gram new materials or delete existing materials. A maximum of 99 materials can be pro- grammed on the control. For each material, three properties are present and can be viewed and edited.

• Page 94: Program Settings

  Function keys delete mate- To delete the material that is currently shown on the rial screen. The materials are initially listed according to their material number, which is shown in the first column (ID). The list can be sorted according to the different properties. If you have a mouse available, click on the title of a column.

• Page 95
  Delem question the action will be aborted. The machine number is also stored in the filenames of tools. When the machine number is changed in this screen, you are prompted to make a new backup of your tools because the filenames of all tools have been changed according to the new machine number.
• Page 96
  then the following parameters are automatically recomputed and changed by the control: — Pressure — Decompression distance — Crowning device setting 2. In case you change the value of the parameter ‘length’ then the following parameters are automatically recomputed and changed by the control: — Pressure — Decompression distance — Crowning device setting…

• Page 97: Computation Settings

  Delem dling. 7.5. Computation settings Active bend allowance table ……. . .BE = 0 = Internal / 1 = bendallw.tab…

• Page 98
  uses the postprocess command to calculate a CNC program from a drawing with bendse- quence, the control will allways take bend-allowance into account. When a bend-allowance table is present and the cursor is on the parameter ‘active bend allow- ance table’ then an extra function key is available: ‘edit table’. With this softkey the table can be modified to meet user requirements.
• Page 99
  ENTER. It is not possible to create a table through this menu. Only when a table has been loaded into the control is it possible to edit its contents. For more information about bend-allowance tables, we refer to the Delem manual of the bend- allowance table.

• Page 100: Production Settings

  7.6. Production settings Stock count mode ……… .SC= Setting for the stock counter in production mode, to have the stock counter (product counter) count up or down.

• Page 101
  Delem during production. The parallelism which can be programmed for each bending (Y2) is only active below the clamping point. The parallelism below the clamping point is the sum of the two parameters (Y2 + Par. offset). Flattening opening ………OP =…
• Page 102
  be confused with the parameter ‘X-safety’ of each die. This parameter is especially useful when several dies of different sizes are placed on the machine. In that situation, this intermediate X-value should be larger than the safety zone of the largest die that is installed. When the backgauge has to move to a different Z-position, it is checked whether the cur- rent X-position is safe.

• Page 103: Serial Ports

  Delem 7.7. Serial ports Serial port 1/2 ……….C1/C2 The control is equipped with two serial ports (RS-232).

• Page 104: Backgauge Dimensions

  7.8. Backgauge dimensions With these finger dimensions the R-axis movement and work/backgauge collision can be com- puted. Gauge positions ……… . .GN = The number of possible gauge positions (max.

• Page 105
  Delem Finger width ……….FW The width of the backgauge finger.

• Page 106: Maintenance

  Gauge height……….H1/H2/H3/H4 The height of the different finger levels.

• Page 107: Manual Mode

  Delem Manual mode 8.1. Introduction Manual mode By pushing this key the CNC is in manual mode. In manual mode you program the parameters for one bending. This mode is useful for testing and for calibration. All the parameters can be programmed independently of the programs in memory.

• Page 108
  Function keys axis func- To change speed and retract distance of available axes in tions the current bend. This function is machine-dependant and is described in detail in the chapter ‘Data preparation’. manual pos Start the function to move axes manually with the hand- wheel.

• Page 109: Parameter Explanation

  Delem • Parameter Explanation Punch ……….. .UP Number of selected punch in the library.

• Page 110
  Mute ……….. .M Sequence point where the Y-axis is switched from fast closing speed to pressing speed.
• Page 111
  Delem D-time ………..T Dwell time of punch at the bending point.

• Page 112: Zoom Function

  • Zoom function When the function key ‘zoomed values’ has been pressed, the control switches to a new view with only axes values on the screen. V0505, 8.6…

• Page 113: Manual Operation Of The Axes

  Delem 8.2. Manual operation of the axes It is possible to move an axis by turning the handwheel on the front panel of the control. After pressing the function key ‘manual pos’ in the main screen of manual mode, the following screen appears: Put the cursor bar on the axis you wish to move with the handwheel.

• Page 114: To Teach

  The Y-axis must be below mute-point. A pressing command must be given to the CNC. • To teach You can teach an axis a correct position within the manual positioning mode. When you have moved an axis to a certain position with the handwheel, you may want to store this position. To do so, press the ENTER key within this screen.

• Page 115: Automatic / Step By Step Mode

  Delem Automatic / step by step mode 9.1. Introduction The automatic mode executes the program (programming mode) automatically bend by bend after pushing the ‘start’-key.When a new bending program is selected you must check your tools and tool positions in your machine. This is also indicated with a ‘check tools’ warning message when you enter the automatic mode.

• Page 116
  Function keys: previous Switch to previous bend of the program. bend next bend Switch to next bend of the program. view Button to activate pop-up bar with additional functions. select rept Switch between display of bend number or the number of repetitions of this bend.

• Page 117: Parameters

  Delem Function keys: aux. axes Switch to second view with parameters of auxiliary axes. view bends Switch to a table view in which all bends are shown. graphical Switch to graphical visualisation of the program. zoomed Switch to view with axes values.

• Page 118: Corrections

  ing corrections If a correction is entered, it will be stored in the database. At each next bend with the same properties, this same correction will be offered. See the chapter ‘Program constants’ for more information on the angle correction database. Corr X .

• Page 119
  Delem In this window the corrections of all bends are shown. You can browse through all corrections and change them as you see fit. If a correction for α1 is entered then this value is copied to the correction for α2. Different corrections for α2 can be entered in the field itself.

• Page 120: Functions Screen

  • Functions screen • Graphical visualisation V0505, 9.6…

• Page 121: Zoomed Values

  Delem • Zoomed values V0505, 9.7…

• Page 122: Bumping Correction

  • Bumping correction With this function a general correction for a radius bend can be entered. This function can be activated when the cursor is on the parameter for angle correction (‘corr. α1/α2’). It is only available if a product is loaded that contains a radius bend. When the function is activated, a new window appears in which the correction can be entered.

• Page 123: Manual Positioning

  Delem • Manual positioning In the automatic production mode it is possible to move the selected axis manually with the handwheel and change the axis-positions with the teach function like in manual mode. V0505, 9.9…

• Page 124: Step Mode

  9.2. Step mode In the step-by-step mode you have the same possibilities as in the automatic mode. There is only one difference. After each bend cycle, the control will stop. To continue working, you must start the control again by pressing ‘start’ on the front panel of the control. After each bending step, the control can stay in the current bend or jump to the next bend.

• Page 125: Parameter Index

  Delem Parameter index Flattening offset ….. . . 7.9 Flattening opening ….7.11 Force .

• Page 126
  Thickness ……3.2 Thickness ……8.3 Ton/kN select 1/0 .

Delem

DA-56

Reference Manual

Operation

of Version V1

PREFACE

This manual describes the operation of the Delem controller type DA-56 and is meant for operators who are instructed for operation of the total machine.

Only authorised people should be able to create new or edit existing programs, as well as programming or editing of the tooldata. Therefore the controller has a keyswitch to prevent uncontrolled programming. With the keyswitch in the off position the operator can only execute a selected program. The operator cannot change the parameters to wrong, unwanted values.

Version history

The control software is updated regularly to increase performance and add new functionality. This manual is also updated as a result of changes in the control software. The following overview shows the relation between software and manual versions.

This manual is valid for software version 1.2.

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Table of contents

1. Operation overview and general introduction . . . . . . . . . . . . . . . . 1.1

1.1. The control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.1 1.2. Operation modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.2 1.3. Frontpanel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.3 1.4. Programming mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5 1.4.1. The main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5 1.4.2. Help text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.7 1.4.3. Listbox functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.9 1.5. Graphical programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.10 1.5.1. Control keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.10 1.6. Network option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.12 1.7. Software versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.13 1.8. Delem Limited warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.13

2. Product drawing/Product edit for 2-dimensional products . . . . . . 2.1

2.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.1 2.2. Delete an angle/line or insert an angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.5 2.3. Precision selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.5 2.4. Large Radius: Bumping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.7 2.5. Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.8

• Parameter explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.10 2.6. Bend sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.11

• Restoring a bend sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.16

• Minimum bending length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.17

• Machine/Tool selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.17

• Turn indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.18

• Screen data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.18

• Functionand control keys summary . . . . . . . . . . . . . . . . . . . . . . . . . . .2.19

• Store . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.20 2.7. Variants programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.20

3. Data preparation/Data edit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1

6. Products and tools back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1

6.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1 6.2. Directory navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 6.3. Product backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.3 6.4. Tool back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5

7. Program Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.1

7.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.1 7.2. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.1 7.3. Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.4 7.4. Program settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 7.5. Computation settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.8 7.6. Production settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.10 7.7. Serial ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.14 7.8. Backgauge dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.15 7.9. Event logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.18 7.9.1. Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.18 7.9.2. Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20 7.10. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.22

8. Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1

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9. Automatic / step by step mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1

9.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.1

• Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.3

• Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.4

• Functions screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.6

• Graphical visualisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.6

• Zoomed values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.7

• Bumping correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.8

• Manual positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.9 9.2. Step mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.10

A. Parameter index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A.1

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1.Operation overview and general introduction

1.1.The control unit

The control looks as follows:

1.a

The precise outfit of your control may vary.

Operation of the control is done with the various keys on the front panel. A description of all keys and their functions is given in the next section.

Beside the front panel keys, an external USB mouse can be used as a pointing device to select menu items, parameters or softkeys. It depends on your configuration whether such a device is available. In this manual the phrase ‘mouse’ is used to describe any of these possible pointing devices.

1.2.Operation modes

The control has the 4 following modes:

Each mode can be selected by pressing the relevant push button. A LED in the push button indicates whether or not this mode is active.

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1.3.Frontpanel

The frontpanel, besides the 4 operation mode buttons, consists of the following items :

Cursor path control:

Stop button Start button

Manual movement of any axis (Y + backgauge axes)

Softkeys; The function of these keys is stated at the bottom side of the monitor screen.

End of menu program.

It is also possible to leave a menu by pressing <ESC> on an external keyboard or clicking with the mouse on the menu symbol in the upper left corner.

On the screen pages where you find the «?» symbol you can press the «?» to get an explanation of the respective function or parameter to program.

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1.4.2. Help text

This control is equipped with an on-line Help function. This help text is available when the question mark ‘<?>’ appears on the screen (lower right corner).

1.c

To activate a help window for a parameter:

—press the question mark key (‘?’) on the frontpanel or

—click with the mouse on the help symbol.

A pop-up window appears with information on the active parameter.

1.d

This Help window contains the same information as the Operation manual. The help window can be used as follows:

Use the arrow keys (up/down) to browse through the help text or use the function keys ‘previous page’ and ‘next page’.

Press the function key ‘end’ or the END key to close the Help window.

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1.4.3. Listbox functionality

Several parameters on the control have a limited number of possible values. Beside such parameters, the sign appears.

This means that the key can be pressed to get a listbox with possible values of this parameter.

This listbox can also be opened by clicking with the mouse on the symbol.

1.5.Graphical programming

From the main menu you can select one of the programming possibilities.

In order to design or edit a new product, the graphical programming facility is present.

This facility is a complete product design tool that allows you to draw the profile of your product. It consists of a machine-and tool-library which allows you fast automatic, interactive or manual bending sequence computations with display of possible product/tool/machine collisions and developed length.

The graphic design tool provides a way of selecting the most optimal bend sequence for a product, keeping in mind the minimum production time and manipulation possibilities of the product.

Features of the design tool

—Graphical design of product shapes in 2D

—Auto scaling

—Horizontal and vertical projected dimensions can be entered

—Blank length computation

—Real scale tool design

—10 different upper side shapes and 10 different under side shapes (tables)

—Changing of lengths and angles

—Bumping (big radius)

—Adding or deleting of bends

—Existing products can be copied, changed and stored as a new product

—Production time indication

—Closing dimension or highest precision tolerance selection

—Connecting 2D programs for 3D-production

Axes according to the machine configuration

The 2D-programming will be explained in chapter 2.

1.5.1. Control keys

The drawing software uses several function keys on the front panel.

—S1 thru 8

—Drawing cursor control with:

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—Zoom function:

At bendsimulation overview in case of 2D-products (bendsequence menu and automatic mode):

Enlargement

Reducement

—Drawing cursor control for 2D-products

In case you are drawing the profile of your product or tools the cursor keys can be used to give directly multiples 45 degree angles. e.g.:

a = 135°

a = 45°

a = -90°

a = 90°

—Horizontal or vertical projections for 2D-products

After you entered the length of the line interval you can specify if this line interval is either the nominal length, horizontal or vertical projection. The given length dimension in the enter field is the line length L if the drawing cursor is in the concerning line.

L is normal entered line length

V is vertical projected line length

H is horizontal projected line length

It will be noted on the screen if projection is not possible.

1.6.Network option

The CNC control is equipped with a network interface. If activated, the network function offers the operators the possibility to import product files directly from the network directories or to export the finished product files to the required network directory.

1.e

Chapter 6 contains more information about networking possibilities.

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1.7.Software versions

The version of the software in your control is displayed at the upper side of the menu screen in the programming mode.

Example of version number:

V 1.2

V stands for version

1is version number

2is version level

The version number is increased when new features are added to the software, the level number is increased when minor corrections are needed in the existing version number.

1.8.Delem Limited warranty

•This manual does not entitle you to any rights. Delem reserves the right to change this manual without prior warning.

•All rights reserved. The copyright is held by Delem. No part of this publication may be copied or reproduced without written permission from Delem BV.

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Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D1=

Determine the use of the outside(A) or the inside(B) dimensions in the product drawing. Figure 2.c gives the definition of both the dimensions.

Press the key to select the required setting.

2.c

After entering the general product data the drawing screen appears. In the upper information row you will find the information about product number, drawing number and inside/outside dimensions selection.

You create now the bending profile of the product. First you enter the value of the basic length of the product. Then you enter the angle of the next side followed by the length of that side. This procedure continues until the product has the desired profile. A circle indicates the actual position. With the cursor control keys you move this circle to an other position (angle or length). During the drawing of the profile of the product the graphical software always displays the product at relative scale.

2.d

For creating the product drawing you have to enter the length of a line and the angle to bend or you can use the cursorkeys for angles of multiple 45 degrees.

In ‘product drawing’ or ‘product edit’ of a 2D product you can program up to a maximal of 25 bendings per product (graphical programming).

Function keys:

These functions will be explained in the sections as indicated in the abovementioned overview.

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2.2.Delete an angle/line or insert an angle

The function of softkey (S1) depends on the position of the drawing cursor.

—If the cursor is within a line segment, it is possible to insert a new angle to bend, in combination with the enter key.

—If the cursor is positioned on a bend, it is possible to delete that bend.

—If the cursor is at an end line of the product, the line can be deleted.

2.3.Precision selection

When the drawing cursor (small circle) is on a line segment, with S2 high precision or closing dimension can be selected. With S2 these functions will be toggled giving 3 possibilities (high precision — closing dimension — normal situation).

2.e

— High precision:

At bend sequence computation the backgauge stop position will be chosen to get the highest possible precision of this line interval.

— Closing dimension:

At bend sequence computation the backgauge stop position will be chosen to get the resulting tolerances in this line interval.

Example:

2.f

Line interval marked with the open circle should be, if possible, directly placed between back stop and the centre of the die.

Notes:

Specifying line intervals with high precision and closing dimensions may result in longer production time.

Also it will have priority over the «front extend ratio», if that is set to «comply if possible». See section 2.5.

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2.4.Large Radius: Bumping

To make a bend with a large radius, the control uses the bumping method. With this method, a large radius in a product is obtained by a series of slight bends in succession.

2.g

To program such a bend, you must program the following parameters: radius = the desired radius

segments = number of segments

The number of bends in this radius is the number of segments plus 1.

The more segments you select, the more bendings will be used to create the programmed radius within a smaller tolerance. With a high number of segments you will need a smaller V- die opening to be able to bend in a proper way. Which value is acceptable as maximum for the V-opening of the die is calculated and displayed on the screen.

For the definition of the line lengths to be programmed in the part connected to a bump radius segment, see figure 2.h.

2.h

Lengths L1 and L2 must be equal or bigger than the radius R.

When you must program such a bend, first program a standard angle with adjacent sides. Then put the cursor back on the angle and press the function key ‘bumping’ (S2). You will be prompted to program the radius and the number of segments. After programming these parameters the radius is drawn in the product and the maximal V-opening which can be used is displayed on the screen. This is shown in figure 2.i.

2.i

Specification items:

Radius input:

min. value = 0.1 mm max. value = 2500.0 mm

In the ‘assignments’ menu, it is possible to modify the way the radius bend is divided into segments. See section 2.5 for more information.

2.5.Assignments

Pressing ‘Assignments’ results in the parameter pages.

If Variants programming is active (indication ‘Variants On’ in the title bar), a warning is given that corrections will be lost. Press ‘Yes’ to proceed with the assignments or ‘No’ to go back to the edit screen.

See section 2.8 for more information about variants programming.

Some of these parameters are machine related, axis speeds a.o. and some are related to handling possibilities and turn times.

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2.j

Function keys:

previous page

next page

•Parameter explanation

Lay-on backstop limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BL=

This parameter (mm) is usefull in case the pressbrake has been equiped with backgaugefingers on a moving R-axis, having a so-called “lay-on” construction.

When the length of the plate at the backside of the machine is greater than this limit, the X-axis and R-axis positions will be corrected automatically so the plate will rest on the backgauge finger. (0 — 3200.0 mm)

This is only possible if an automatic R-axis is enabled.

2.k

After postprocessing, the controller calculates the developed length of your product and the bend allowance.

Important for the developed length calculation and the bend allowance is the inner radius of the bends.

For each of these computations a correction factor can be programmed (RF and AF).

The computed inner radius is multiplied by this factor to correct the X-axis position in order to have a correct product dimension after each specific bend (bend allowance). This factor can be checked by making a product with just one bend and a certain product dimension e.g. 100 mm (outer dimension). See figure 2.s.

The controller computes the X-axis position necessary to obtain L=100 as shown in figure 2.s. The accuracy of the length L is dependent on the material parameters like thickness, strength and kind of material. In order to have a correction possibility with the radius factor AF you can optimise this computation.

RF and AF do not influence each other. It is recommended that first you optimise the AF factor for your product and thereafter find the correct value for the developed length correction RF.

This selection will give an overview of the tools including the main properties of each tool.

2.m

In your machine and tool library you can program 1 machine uppersides, 1 machine undersides (tables), 30 different dies and 30 different punches. One of each must be selected, and can also be changed during the bending sequence determination. These selections are prompted in the lower left corner of the screen. Within the bend sequence screen, the softkey ‘show library’ will remain available to get a graphical overview of the tool library as shown above.

After specifying machine part and tools the product and machine will be drawn on the screen.

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2.n

The product, as it was drawn, is placed directly under the punch, at one of the last bending positions possible.

The shape of your product before this last bend is placed on top of the die. A bigger circle on an angle indicates that this bending is also possible without collision.

A complete overview of available softkeys in this screen is given on page 2.25. The function key ‘MORE>>’ serves to switch between the primary and secondary row with function keys.

With these keys you can select any of the other bendings which you prefer to be the last bending. The bends possible are indicated with the round cursor.

If the product has collision with the tools or machine it will be indicated via a warning message on the screen.

With this function key you can switch the collision protection check on or off.

This is indicated at the top of the screen. When you have selected collision «off» you can also select other bends which will give collision with the tools or machine parts.

The inner radius resulting after this bend is displayed at the top of the screen.

To enlarge or reduce the complete drawing.

After pressing «unbend» the position of the bending is indicated by a small circle, see figure 2.w.

2.o

Note:

A big radius (bumping) is shown during bend sequence computation but is treated as a single bending.

The CNC-data of the bendings necessary to produce the radius are computed during postprocessing.

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When a bendsequence has been determined, a CNC program can be calculated and stored. This process is called postprocessing. When postprocessing is finished, the ‘blank length’ of the product is displayed.

(second row) Open a graphical overview of the bend sequence, in order to have a visual check.

2.p

The images in this graphical overview can be zoomed-in or zoomed-out with the cursorup and cursordown key. The function keys S7 and S8 enlarge or reduce the number of images that is displayed on the screen at once (minimal 4 and maximal 25).

Function keys:

Swap bends Let two bends exchange place in the bend sequence.

Move bend Move a certain bend to another place in the bend sequence.

Function keys:

Move bend

In the graphical overview of the bendsequence, it is possible to change the order of bends simply by moving a bend to another place. Press the button ‘Move bend’ and the number of the first bend is highlighted. Use the arrow keys to move this cursor to the bend that must be moved. When the correct bend number is highlighted, press the enter key to select this bend. Now use the arrow key to move the bend to the right place in the sequence. If the bend is on the correct place, press ‘enter’ to confirm.

Swap Bends

With this command, two bends can change place in the bend sequence. Press the ‘swap bends’ button. Move the cursor to one of the required bends and press the ‘swap’ button or press enter. Then move the cursor to the bend with which it must be swapped and press the enter key or the ‘swap’ button. Now the bends have been swapped. If for any reason the action must be cancelled, press the softkey ‘abort swap’ during the procedure.

•Restoring a bend sequence

A (partly) determined bend sequence is not automatically reset after leaving the bend sequence menu.

After you re-enter the bend sequence menu it is possible to continue with the existing bend sequence.

If you re-enter the bend sequence menu you have the following options:

If you have loaded a drawing from which a postprocessed bending program already exists, there is a third option when you enter the bend sequence menu:

If you have drawn a new product in the menu «Product drawing» and you enter the bend sequence menu for the first time, there is no existing bend sequence and postprocessed program yet, these previously mentioned selections are not shown.

•Minimum bending length

The minimum possible bending length will be calculated from the V-opening parameter (½ V), but also depends on the angle to bend and the thickness of the material to be bend, see figure 2.z. If the programmed value for the wanted product does not correspond with the minimum possible length, you will get a warning message on the screen.

2.r

•Machine/Tool selection

At each bend you can select one of the tools or machine shapes which are present in your library. The displayed number is the number of the tool and machine part which is presently selected.

Entering a new number will select another tool or machine part which will be drawn directly on the screen.

With the «enter» key you can toggle between punch-, die-, machine upperand lower part number.

It is also possible to turn the punch and die with respect to the machine shapes. To achieve this, the tool number must be programmed negative.

2.s

In order to get a graphical overview of the available tools while you are in the bend sequence menu, press the function key ‘show library’ (S2). If pressed, an overview appears of available tools.

Which type of tools is shown depends on which type was prompted in the bend sequence screen: punch, die, machine upperor lowerside.

•Turn indication

In the lower left corner a bend turn indication is displayed at each bend of bend sequence.

2.t

The asterisk indicates which bend is presently displayed.

•Screen data

On top of the screen some general important data is displayed.

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•Functionand control keys summary

Function keys:

Function keys secondary row:

show bend- To show a mosaic screen with a step-by-step graphical seq. overview of the bendsequence.

Control keys:

Zoom enlargement

Zoom reducement

•Store

After you have completed the bend sequence a CNC-program can be generated. This generated program will be stored in the controller program memory.

2.7.Variants programming

The term ‘Variants programming’ means that the operator can make modifications to an existing program in the graphic menu, without having to build a new CNC program from scratch. An existing program can be altered without loss of existing corrections and bendsequence. If such an existing program contains proper axis values and product positions then this information can stay intact, only the latest changes (angle, sheet length) are recalculated and entered into the program.

For instance, when a side length has been altered in the graphical bend overview and the ‘store’ command is given, then a question appears how to compute a CNC program.

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