delem DA-56 Reference Manual

Page 1
Delem
DA-56
Reference Manual
Operation
of Version V1
Manual version V0606
Page 2
PREFACE
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.
Software version Manual version Description
V1.1 V0505 first issue V1
V1.2 V0606 update
This manual is valid for software version 1.2.
V0606, 0.2
Page 3
Delem

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
• Function- and control keys summary . . . . . . . . . . . . . . . . . . . . . . . . . . .2.19
• Store . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.20
2.7. Variants programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.20
3. Data preparation/Data edit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1
3.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.1
• Parameters explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.2
• Connecting CNC programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.3
3.2. Bend programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.4
• Axis functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.5
• Parameter explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.6
• Parameter explication (second page) . . . . . . . . . . . . . . . . . . . . . . . . . . .3.10
• List of bendings of the prepared program . . . . . . . . . . . . . . . . . . . . . . .3.15
• Ending data preparation/data editing . . . . . . . . . . . . . . . . . . . . . . . . . . .3.17
3.3. Special edit function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.18
3.4. Edit notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.18
V0606, 0.3
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4. Product selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1
4.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1
• Expanded directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3
• Search function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4
4.2. Directories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5
5. Programming of tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1
5.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1
5.2. Programming of Punches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1
5.2.1. The punch menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1
• Edit punch drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2
• Drawing orientation of the punch on the screen . . . . . . . . . . . . . . . . . . . 5.4
5.2.2. Specific Punch Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4
5.3. Programming of bottom dies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.7
5.3.1. The die menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.7
• Edit die drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.8
5.3.2. Specific die data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.10
5.4. Machine upper side and lower side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.13
5.5. Saving/loading of tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.16
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
8.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1
• Parameter Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3
• Zoom function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.6
8.2. Manual operation of the axes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.7
• To teach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.8
V0606, 0.4
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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
V0606, 0.5
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V0606, 0.6
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1. Operation overview and general introduction

1.1. The control unit

The control looks as follows:
manual
movement key
Delem
screen
function keys
arrows
mode keys
start/stop
num. keys
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.
V0606, 1.1
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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 param­eters are active and the backgauge will go into position. It is also possible to move the axes manually.
Programming mode
Automatic mode
Step by step mode
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.
In this mode bend programs can be made or edited and also be written to or read from disk.
The selected program can be executed automatically.
The selected program can be executed bend by bend.
V0606, 1.2
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1.3. Frontpanel

The frontpanel, besides the 4 operation mode buttons, consists of the following items :
Keyboard:
decimal point
clear key: Clearance of the input data field in the bottom left cor­ner on the monitor screen
10 numerical keys (0-
9) incl. alphanumeric input
plus/minus toggle
enter key, to confirm a programmed value
Cursor path control:
Stop button Start button
V0606, 1.3
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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.
V0606, 1.4
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1.4. Programming mode

1.4.1. The main menu

Delem
Programming mode
The main menu in programming mode looks as follows:
Select the programming mode.
1.b
Each of these menu items can be selected in several ways:
- enter the menu number and press ENTER
- use the arrow keys to scroll to the desired menu item and press ENTER
- click with the mouse once on the desired menu item
Explanation of menu items:
To draw your product on the screen and compute the
1
2
bendsequence (graphical).
To edit your product drawing and compute the bendse­quence (graphical).
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3
4
5
6
7
8
9
10
11
Creation of a new CNC-program by data entry (numeri­cal).
To edit an existing CNC-program by data entry (numeri­cal).
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.
To program the dimensions of the upper side of your machine.
To program the dimensions of your machine table.
To program specific programming data.
12
Write or read tooling data and machine shapes to or from a back-up medium.
V0606, 1.6
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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.
V0606, 1.7
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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.
V0606, 1.8
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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.
V0606, 1.9
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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:
V0606, 1.10
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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.
Horizontal projection with or key
V0606, 1.11
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Vertical projection with or key
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.
V0606, 1.12
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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 1 is version number 2 is 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.
V0606, 1.13
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V0606, 1.14
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Delem

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

2.1. Introduction

1. To start a new product drawing, choose product drawing in the main menu.
2. To edit an existing product drawing, choose product edit in the main menu.
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’ (S6).
2.a
Product number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PN
A unique number to identify a product program. The maximum length is 7 digits.
Drawing number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DN
A name or description of this program. The maximum length is 20 characters.
If an existing product number is entered, a warning appears that this product already exists. You are asked whether to replace that existing product with the new product or not. If you choose ‘yes', the existing product is erased. If you choose ‘no', you must enter a new number. The "±" key prompts a "-" character and the "." key prompts a "/" character in the drawing number.
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After finishing this input you have to enter specific product data. Then you can start drawing the product. In the edit mode you also have the possibility to make a copy of the active product. A special function key ‘copy product’ appears.
2.b
Function keys
copy prod­uct
draw. nr. Go to the screen with product number and drawing num-
Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TH=
Thickness of the material of the plate in millimeters (mm).
Material. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .M=
Selection of the material type. The control contains 4 preprogrammed materials. In total, 99 materials can be programmed on the control. See chapter 8 how to program materials.
Press the key to select the required setting.
Copy the current product. When pressed, you must enter a new product number for the new copy.
ber, in order to edit the drawing number.
Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .L=
The Z-length of the plate in millimeters (mm).
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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
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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:
insert / delete
precision To define selected line segment, with round cursor, for
bumping Bumping: when the cursor is on an angle you can create
change data
assign­ments
bend sequence
Delete an angle/line or insert an angle, depending on the drawing cursor position (section 2.2).
high precision or if it is to be a "closing" dimension (sec­tion 2.3).
an angle with a big radius (section 2.4).
To page with product data.
To select assignments for bending sequence computations (section 2.5).
Program bend sequence (section 2.6).
Return to main menu
These functions will be explained in the sections as indicated in the abovementioned overview.
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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 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.
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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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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.
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 V­die 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.
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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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Delem
Function keys:
previous page
next page
load defaults
save as defaults
2.j
To load default assignment settings. It is possible to determine a set of assignments which have the most opti­mal values to work within your surrounding. This set can be stored into the internal memory by pressing softkey S4 (save as default). While programming another product you can recall this previous fixed set by loading the val­ues via softkey S3.
Save as default assignments settings
end To go back to the drawing.
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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).
Radius factor blank length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RF=
The computed inner radius is multiplied by this factor to correct the total developed length of the product. The initial value of RF is 1.
Radius factor X-axis position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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.
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2.l
Minimum Y-axis opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .YM=
During postprocessing of the programmed product, the control always computes an opti­mal opening of the pressbeam to handle your product. Here you can program a minimum required opening. The programmed value is the distance above the speed change point MUTE.
X-allowance DIN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .XA =
For the calculation of the developed length and bend-allowance during the postprocess­ing of a graphical 2D product, a Delem formula is used. It is also possible to select the standard DIN-formula (DIN6935). 0 = Delem formula (OFF) 1 = DIN formula (ON)
Default setting is zero for the Delem formula. Press the key to select the required set­ting.
Equal sized bumping segments enabled . . . . . . . . . . . . . . . . . . . . . . . .EB=
When a product has a radius bend, the segment size is computed from the number of seg­ments, which has been defined by the user. Standard the first and last segment are calcu­lated half the size of the mid segments to obtain a better result. However, it can be a problem selecting a die suitable to bend these small segments. Therefore the control can calculate an equal size for all segments. This can be defined with this parameter. 0 = disabled (no equal sizes) 1 = enabled (equal sizes)
Press the key to select the required setting. When this parameter is set to 1, all segments will have an equal size. If it is set to 0 the calculation is as before, including half size segments. If in this case a problem with the size of the V die is detected in the bend sequence menu, the user is asked whether or not to select a re-calculation with equal size segments.

2.6. Bend sequence

After completion of your drawing, with function key S5 you select the "bend sequence" mode. You will have to enter the number of the machine lowerside, the die, the machine upperside and the punch first. This number corresponds with the number in the respective tool libraries (menu number 7, 8, 9 and 10). If the number entered is not known, the controller prompts the message "not programmed". You have to program the machine parts and tools before you can compute the bend sequence. Programming can be done via the respective selections in the program menu. The several tools as available in the respective tool libraries can be shown on the screen with S2 (show library).
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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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Delem
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
If the product has collision with the tools or machine it will be indicated via a warning message on the screen.
prefer to be the last bending. The bends possible are indicated with the round cursor.
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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 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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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 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 cursor- up and cursor- down 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.
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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 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:
2.q
‘new’ start new bend sequence, the existing bend sequence is
reset
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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’ restore bend sequence from postprocessed program, the
bend sequence is restored from this postprocessed bend­ing program and shown on the screen
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 upper- and 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.
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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 upper- or 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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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.
Function- and control keys summary
Function keys:
unbend/ next
bend/pre­vious
shift gauge Select backgauge position
swap Front to back turn of the product.
protection on/off
store Automatic computation of all axes positions (complete
To unbend the graphical product
To bend the graphical product
To switch the collision detection with collision warning On or Off.
CNC program) and storage in the product library of the postprocessed product.
more>> The softkeys for this mode are divided in two rows. Press
this key to switch from one row to another.
end To go back to the drawing.
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Function keys secondary row:
Control keys:
show bend­seq.
show library
Zoom enlargement
Zoom reducement
To show a mosaic screen with a step-by-step graphical overview of the bendsequence.
Softkey to get a graphical overview of the tool library.
•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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Delem
2.u
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 ‘re­use corrections’ refers to the corrections that may have been entered in one of the production modes. These production modes are explained in chapter 10. When new (S5) is chosen, a new CNC program is calculated. Corrections in the existing CNC program are lost.
In order to keep the existing program, check that the indication ‘Variants On’ remains in the title bar. When you start an action or command that would seriously change the program, a warning is issued by the control:
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2.v
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. The message "CNC program and corrections will be lost" is not literally true. The CNC pro­gram is still present, but it cannot be updated anymore from the graphical menu. If the old CNC program must be stored, it is still possible to go to ‘data edit’ mode and store the program under a different product number.
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Delem

3. 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. To edit a program that is not currently loaded, choose ‘Product selection’ in the main menu. In the offered list, you have to select the wanted program number.
3.a
This page gives all data which are the same for every bending of the program (main data of program).
For placing the cursor at one of the parameters. The value entered for the selected parameter appears in the entering field, situated in the lower left corner.
The input can be cleared for entering new input data. Data has to be given to be able to continue program­ming.
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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.
END Finishing the data preparation and returning to the pro-
gram menu.
Parameters explanation
Angle selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .mα
Selection of the programming mode for the Y-axis. 0 = absolute: program the absolute Y-axis position for a bend. 1 = α: program the angle to bend. The required Y-axis position is computed. Depending on this parameter, either the parameter 'angle' or the parameter 'bend position' will appear.
Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TH
Thickness of the plate in millimetres.
Material. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .M
Selection of one of the programmed materials, which are used to calculate the bending depths. The control contains 4 preprogrammed materials. In total, 99 materials can be programmed on the control. See the chapter about programming constants how to pro­gram materials.
Press the key to select the required setting.
1 = Steel 2 = Aluminium 3 = Zinc 4 = Stainless steel
E-MODULE (N/mm²)
210.000
70.000
94.000
210.000
TENSILE STRENGTH (N/mm²)
400 200 200 700
Blank length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .L
The required length of the original sheet from which the product is bent. If the program
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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" is to have a possibility to connect certain programs to one another. This option can be used to produce 3-dimensional products. (See also the next page).
Connecting CNC programs
With the parameter Connect it is possible to create a 3-dimensional product. The control auto­matically executes the bend sequences in the different directions in succession. You program the control as follows:
Instruction for 3-dimensional product programming (9 steps)
1 Create the product in one direction. 2 Create the product in the other direction.
There are now two bendprograms of one product in two directions. You connect these pro­grams as follows:
3 Select the program with the bendsequence in the direction which you want to execute in
the first place. You select the program of the product via menu 3, product selection.
4 Go to menu 2, data editing. Select the parameter CONNECT. Enter the program number
of the product in the other direction.
5 Select the second program as in step 3. Repeat step 4. If you want to connect two pro-
grams, as in this example, you enter the program number of the first program. The cycle is closed.
When you want to execute more than two programs in succession (not necessarily to create a 3-dimensional product) the second program must refer to the third. The third program to the fourth and so on. The final program of the cycle must always refer to the first program.
To produce products with connected programs the next four actions are necessary.
6 Select the first program 7 Select the Automatic mode 8 Program the amount of products you want to produce with the ‘stock count’ parameter. 9 Push the Start key.
When the first program has been finished the second program starts automatically. The pro­gram counter indicates the remaining amount of repeats.
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3.2. Bend programming

The parameters of one bend are divided over 2 screen pages.
3.b
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. bend select previous bend
next bend select next bend
show library
next page next page, to select the second page of the parameters to
Open a window with an overview of the tool library. From here, a tool can be selected. Only available if the program cursor is positioned on a tool.
be programmed for this bending.
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Function keys:
Delem
axis func­tions
all bends to the listing of all bends of this program (only possible in
END To end the data prep./edit mode and return to the main
axis functions, to change speed and retract distance of available axes in the current bend. This function is machine-dependant.
data-editing).
menu. In the dialogue that appears, enter a new product number or confirm the existing number.
Axis functions
With this command, speed and retraction of the available axes on the machine can be pro­grammed. This function is machine-dependant. The function is activated by pressing S6 in the ‘Data edit’ screen:
3.c
A pop-up window appears, in which all programmable dimensions for the axes are shown. Which axes are shown here depends on the machine configuration. Press the ‘END’ button to leave this window.
Axis speeds
Speed of the selected axis in the current bend. Speed can be programmed in a percentage of the
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Page 48
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.
Parameter explanation
Punch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .UP
Number of punch in library.
Die . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .UN
Number of die in library.
Program the required tool numbers or press the key to select a tool from the list. Use the function key ‘Show library’ to check the available tools.
Bendmethod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BM
Select the required bending method. The control supports 4 methods: Air bend Bottoming Flattening Flattening & bottoming.
Press the key to select the required setting.
Bend methods:
air bend The sheet is bent to the programmed angle by
bottoming The sheet is bent by squeezing the sheet
bringing the punch to the required depth. The control calculates the required Y-axis position to obtain the programmed angle.
between the punch and the die. The control assumes the bottom of the die as required Y­axis position.
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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 calcu­lates the precise Y-axis position for this action: the surface of the die plus twice the sheet thickness. Y-axis positioning can be adjusted by pro­gramming a 'flattening offset'.
flattening and bottoming
Note 1:
The flattening bends are shown here with a special flattening punch, but this is not required.
Note 2:
When bottoming operation is selected, the end of bend position of the Y-axis beam is depend­ing on the working tonnage. If however the force is sufficient for the beam to go to the calcu­lated Y-axis end of bend position, the beam stroke will be limited by the position value.
Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BL
Length of plate between tools
Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .α
The required angle of this bend. This parameter only appears if angle programming is selected with the parameter 'Angle sel.' and the bend method is an air bend.
The same as flattening, but now the control assumes the top of the die as required Y-axis position. The folded sheet is squeezed between punch and die.
Bend position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Y
The required Y-axis position for this bend. This parameter only appears if absolute pro­gramming is selected with the parameter 'Angle sel.' This parameter also appears if the bend method is bottoming and/or flattening.
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DY
This parameter results in a certain gap opening between the punch and the die after the bend. A positive value is the gap opening above Mute, a negative value below Mute. When you want to limit the handling time of the product you can program a small posi­tive or a negative value.
Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .M
Sequence point at which the Y-axis is switched from fast closing speed to pressing speed. The value programmed here is the distance of the mute point above the plate. By default, the mute value from the programmed die is used. Whether or not this parameter is present depends on machine settings.
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Backgauge position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .X
Backgauge position. When a negative sign is programmed this backgauge dimension is an incremental dimension. The incremental dimension is subtracted from the actual X­axis position. Therefore this parameter can also be used as a chaining measure.
Only in case you have a configuration with a R-axis.
The function key (‘gauge func’) appears when you put the cursor bar on this X-axis parameter.
3.d
If you press ‘gauge func’ a window appears with three programmable parameters.
3.e
Gauge pos.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GP
With this function you can program another ‘gauge position’ for this specific bend. The
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gauge position (parameter GP) you can program depends on the backgauge dimensions. Backgauge dimensions are programmed in the menu ‘program constants’. Default gauge position = 0 (no lay on) Other possibilities are: gauge position = 1, lay on first level gauge position = 2, lay on second level (only possible when number of gauge positions (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’ and ‘X-finger position’ remain the same. See also example below.
3.f
R-finger position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .R
Default value = the height (R direction) of the gauge position of the plate. This value can manually be adjusted in this window, if required.
X-finger position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .X
Default value = the value in X-direction of the gauge position for the plate. This value can manually be adjusted in this window, if required. With ‘END’ you leave the window and the new values have been saved. If you press ‘cancel’ you leave the window without changes. When you have changed the ‘Gauge position’ then the axes positions in X- and R-direc­tion have also been changed. Therefore the parameters ‘backgauge position...X’ and ‘R-
axis....R’ have been changed. The new values depend on the dimensions of the back-
gauge finger which you have programmed in the menu ‘program constants’. When you have changed the values of ‘R-finger position’ and ‘X-finger position’, then these changes are also included.
Retract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DX
Retract distance of backgauge during the bending. The "backgauge retract" is started at the pinching point of the plate.
code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CX
Programmable parameter which determines when the parameter values for the next bending will be active. The possibilities are:
0 = Bending number change (step change) at end of decompression (next bend parame-
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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".
4 = Step change if C-input signal becomes active, without movement of the beam. When you still have a beam movement there will be no retract function of the backgauge per­formed. See also code 5.
5 = Step change if C-input signal becomes active and the beam is in the upper dead point. Now you may move the beam and the retract function of the backgauge will be per­formed.
10= Step change at end of decompression with the Y-axis beam waiting at the pinching point until the backgauge is at the retract position.
11= Step change at mute position when the beam moves in the opening direction, with the Y-axis beam waiting at the pinching point until the backgauge is at the retract posi­tion.
12= Step change at upper dead point, with the Y-axis beam waiting at the pinching point until the backgauge is at the retract position.
13= Step change at upper dead point without movement of any axis. The Y-axis beam will wait at the sheet clamp point until the backgauge is at the retract position. After the bending with this code, the control goes to "stop".
15= Step change if C-input signal becomes active and the beam is in the upper dead point. The beam may be moved but not necessarily. The Y-axis beam will wait at the sheet clamp point until the backgauge is at the retract position.
The not mentioned CX-values have no meaning.
Delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TX
Programmable delay time before step change (0-30sec)
Parameter explication (second page)
Auxiliary functions of the bending can be programmed on this page.
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3.g
Repetition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CY
0 = bending is skipped. 1 through 99 = the number of times this bending will be repeated.
Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V
Working speed (pressing speed). Initially, the value for this parameter is copied from the parameter ‘pressing speed’ in the programming constants menu.
Force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P
Max. adjusted tonnage during pressing (auto calculated).
Dwell time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .T
Holding time of punch at bending point.
Decomp speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BS
The decompression speed is the programmable speed which is active during the pro­grammed decompression stroke.
Decompression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DC
Decompression stroke after bending to release the working pressure
Parallelism. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Y2
Difference of left- and right hand side cylinder (Y1 and Y2). When positive, right hand side lower. When negative, right hand side higher. The programmed value is active below the clamping point.
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3.h
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.
Angle number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AN
The rank number of this angle, when counted from left to right through the product pro­file (figure 4.j). The digit before the dot describes this rank number, the digit after the dot descibes the rank number of this bend in case of a bumping sequence. In case of a normal angle, the bumping number should always be 1. In the case of a radius bend, all bends in the bumping sequence should have the same angle number but a different bumping number. Programming a radius bend in this manner will allow for bumping correction in the production mode.
3.i
Backgauge number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .XN
A backgauge number refers to a certain spot of the product, that can be placed against the backgauge during bending. Such a spot is either a product end or an angle. The back­gauge numbers in the product are counted from left to right, starting with 0 (see figure
4.k). For each bend you must program here which spot must be placed against the back-
stop. If the plate must rest on the backgauge finger, add 100 to the XN value. For each next lay-on position, add another 100 to the backgauge value (200, 300, etc.).
3.j
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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’ must be programmed correctly in order to obtain a visualisation.
Note:
After selecting a new bend this will be a copy of the preceding one; you only have to program those parameters which are different from the preceding bend.
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Example:
Product to make:
0 to 5 are possible backgauge positions. 1 to 4 are angle numbers.
3.k
3.l
Bend Angle (AN) Backgauge (XN)
11 0
24 5
33 1
42 1
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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)
11 100
24 5
33 1
42 1
List of bendings of the prepared program
Pressing this softkey in the data editing mode will result in a complete overview of the bend­ings programmed. After pushing END the page will be restored from which this page was selected, with the cursor on the parameter selected before.
3.m
A specific bend can be selected on the screen by putting the highlighted bar on that bend, then pressing END. The view is split in two parts. At the top of the parameter screen, the general parameters of the product are shown. In the main section of the screen, the bend parameters are shown in a spreadsheet view. From within this screen, the complete CNC program can be edited. All bend parameters can be edited within the spreadsheet and bends can be swapped, moved, added and deleted.
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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. Then push S1 for inserting, results in a new bend which is a copy of the previous one.
delete bend To delete a bend of the program first select this bend with
the cursor (highlighted bar).
mark bend Mark the current bend, in order to prepare it for another
action, like move or swap. See description below.
END Back to bend parameters.
When a bend has been marked with the function key 'mark bend' several other function keys become available:
Function keys:
move bend With this command the bend sequence can be edited in
this screen.
swap bends Let two bends exchange places.
abort mark Remove the mark from the currently marked bend.
Move bend
In the spreadsheet overview of the bendsequence, it is possible to change the order of bends simply by moving a bend to another place. Use the arrow keys to move the cursor to the bend
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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.
Swap bends
With this command, two bends can change place in the bend sequence. Move the cursor to one of the required bends and press the ‘mark bend’ button. Then move the cursor to the bend with which it must be swapped and press ‘swap bends’. If for any reason the action must be can­celled, press the softkey ‘abort mark’ during the procedure.
A bend is no longer marked when the mark is aborted, when an action is finished or when this menu is left.
Ending data preparation/data editing
After pushing the END key in the Data edit screen, a new page with product number and draw­ing number appears.
3.n
At this page the program number and the drawing number must be given to the new prepared program, or can be changed in the edit mode. If either way the number is changed into an existing product number, a warning appears that this product already exists. You are asked whether to replace that existing product with the new product or not. If you press ‘yes’ (S4), the existing product is replaced by the current product. If you press ‘no’ (S5), you have to enter a new number. After typing the product number, press ‘enter’ to confirm it and to return to the main menu.
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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 "auto­matic mode" or "step by step mode". In case one wants to edit the program, the edit mode can be selected directly with the program­ming key. In this way many key operations are saved in order to make program changes quickly.
Note:
This special edit function can not be used with connected programs.

3.4. Edit notes

After changing program data in the menu ‘Data edit’ the control will not automatically calcu­late:
1Force 2 Decompression 3 Crowning device setting 4 Z-axis position offset 5 X-axis position correction
Parameters 1 through 4 are only automatically recalculated if the parameter Auto computa- tions edit (see the menu ‘program constants’) has been activated (value = 1). Parameter 5 is only automatically recalculated if the parameter Bend allowance (see the menu ‘program constants’) has been activated (value =1). Additional corrections on the X-axis posi­tion can be made with the parameter corr. X (per bend) and G-corr. (for all the bends of the active program) in the automatic and step-by-step mode. For detailed information upon both parameters see the chapter about Automatic mode and Step-by-step mode. There is one exception: when the parameter bendmethod is changed the “force” and “Decom­pression” will be adjusted automatically. Also you may find that the graphical simulation will not go properly when you have changed tools and/or X-axis dimensions.
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4. Product selection

4.1. Introduction

This chapter describes the menu ‘product selection’.
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4.a
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. The loaded product can directly be exe­cuted in the automatic mode. Each item in the list consists of a symbol and a number. The number is simply the product number, the symbol can have the following meanings:
the product has a CNC program, there is no drawing
(red)
(green)
the product consists of a 2D drawing, there is no CNC program
the product has a 2D drawing and a CNC program
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Functions keys:
previous page
next page Next page with products overview
view Button to select one out of three possible viewing modes:
filter Function key to open a new button bar with extra function
local direc­tory
delete Delete programs from the memory
Previous page with products overview
- normal dir.
- dir. expand
keys for product selection functions:
- prod. nr.
- draw nr.
- search
Via ‘local directory’ you get an overview of the manually created product directory structure.
End the product selection
When the function key ‘View’ has been pressed a new, temporary button bar appears with additional softkeys:
4.b
Function keys:
normal dir. Select a normal view of the product collection. This is the
standard setting.
dir. expand To obtain a detailed overview of the product collection,
with additional information for each product
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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 addi­tional softkeys:
4.c
Function keys:
prod. nr. Products are shown in columns with symbols and product
number, they are sorted on product number. This is the default view.
draw nr. If this key is pressed in this screen the list of products is
automatically sorted on the alphabetical order of drawing numbers.
search Start the search function, to search for a specific name or
number.
Expanded directory
4.d
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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)
Search function
When the search function is selected, you can search for products with a certain number or name. At the bottom of the screen the text “search to load” is displayed, to indicate that you may enter a string the control will search for. You can either enter a complete name or number or only a part of it. Press ‘enter’ to start a search. If you enter part of a name and this part occurs in several product names, the control will show all product names that contain the given characters. It is also possible to enter a combination of name and number.
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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.
Function keys:
4.f
make subdir Add a new subdirectory. The name of the subdirectory can
be any alpha numeric string of maximal 8 characters. (Avoid the use of slashes ‘/’).
remove sub­dir
select To select the directory on which the cursor is placed.
Delete a subdirectory. If the subdirectory is not empty, the control returns the message ‘UNABLE TO REMOVE DIRECTORY’. An empty subdirectory is deleted without warning. The default directory “PRODUCTS” can also be deleted. When all the subdirectories have been removed the control creates automatically the default directory
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Function keys:
Cursor key Up/Dn
Use the function key 'select' to make a subdirectory active. Press ENTER to look inside a sub­directory. To move up, go to the <PARENT> map and press ENTER. To select the directory
you are currently in, go to and press ‘select’. In this menu it is also possible to remove existing subdirectories (only an empty one) and to make new subdirectories. Press ‘make subdir’ and enter the new name. Subdirectories are called subdirectories because these directories reside under the local directory ‘\PRODUCTS’.
Select another subdirectory.
4.g
It is not possible to copy products from one subdirectory to another subdirectory. A product must be restored in a subdirectory via the menu ‘product backup’. You cannot change the name of the subdirectory. When you leave the product selection menu the control remembers the active subdirectory and the active product (if a product was selected) until another directory or product is selected.
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5. 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.
5.a
A listing of punches programmed into the memory is given.
The punch is selected by moving the highlighted cursor bar resulting in the drawing of the upper tool.
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Function keys:
previous page
next page To select the next page within the several pages of the
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 edit the punch data.
To select a previous page within the several pages of the punch library.
punch library
Edit punch drawing
The display starts prompting the initial dimensions of your punch in the case of programming a new punch.
Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H
The height of the tool. Important: this height value will be used in bend depth calcula­tion.
Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .a
The angle of the punch tip.
Hereafter you can enter angle and length dimensions as in the product drawing facilities.
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Function keys:
5.b
auto finish Finishing the tool outline to the top of the tool automati-
cally
change height
delete line To delete a line segment
delete drawing
change data
To change the height dimension of the tool
To delete the complete tool from the library
To change specific tool data and code (see section 6.2.2.)
To return to the directory overview
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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

5.c
Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C
Alphanumeric tool name with a maximum of 20 characters
Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .R
Maximum allowable force on punch in kN/mm
Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .L
Length of the punch to be used
Z-position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Z
Offset position of the middle position of the punch in relation to the middle of the press brake. (Default value is 00 mm) In case automatic Z-axis are used the Z-axis value is computed from the: plate length, Z­distance (menu ‘Program constants’) and Z-position.
Top vi e w
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5.d
Radius . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RA
The radius of the punch. This parameter has to be used as selection criterium, the value will not be used in compu­tation formulas.
Flattening height. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FH
The flattening height need to be programmed when you make use of a special flattening punch to flatten your product.
The programmable height is used to calculate the Y-axis value in case of "flattening". The default-value for this parameter is the standard tool height, which is already programmed. Every time that this standard height is changed, the flattening height will be made equal to this tool height (due to safety reasons). See figure 6.g.
The total toolheight will be used to calculate the speed change point mute and the flattening height will be used to calculate the end position of the Y-axis beam to flatten the product. The calculation will take 2x sheet thickness into account. Also you can program a flattening offset in the menu ‘Program constants’. This value will be added to the value of 2x sheet thickness.
5.e
Support type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST
Switch parameter, to account for differently mounted punches. Such punches could
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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.
5.f
If 'shoulder mounted' is chosen, the Y-axis position is calculated from the standard tool height. This is the default setting. If 'head mounted' is chosen, a correction is made for Y-axis computation.
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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.
Function keys:
previous page
To select a previous page within the several pages of the available dies in the library.
5.h
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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.
To return to the program menu.
Edit die drawing
When starting the die drawing, the display prompts the main dimensions of the die:
Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H
The height of the tool. Important: this height value will be used in bend depth calcula­tion.
V-opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .W
The V-opening of the die.
V-Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .α
The angle of the die.
Radius . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RA
The radius of the edges of the V-opening.
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V-die opening:
5.i
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.
5.j
The length of the flat section on the right hand side of the V-grove will be used in order to cal­culate the minimum X-axis position for the R-axis collision detection with die (X-safe).
Function keys:
The softkey functions are exactly the same as for punch programming.
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5.3.2. Specific die data

5.k
Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C
Alphanumeric tool name with a maximum 20 characters.
Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .R
Maximum allowable force on the die in kN/mm.
X-safe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SN
Calculated safety zone (minimum X-axis value), which will be used in the case a R-axis is mounted. This to prevent finger to die collision. The indicated minimum value is com­puted automatically from the die dimensions as follows: X-SAFE = FS + ½ V in which: FS = flat section on the right hand side of the V-grove V = opening value In this formula also an extra small safety value has been added.
X-safe turned (negative) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST
This second safety value will be active if the die is used in the turned position. This can be achieved by programming the die in the bendsequence computation with a negative number. For instance: Program for die number 2: "-2" if you want to use it in the turned position. In this situation parameter ST will be used as safety zone for the backgauge.
Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .M
Muting distance. Distance above the plate at which the speed change takes place.
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5.l
Flattening height. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FH
The flattening height need to be programmed when you make use of a special flattening die to flatten your product. The programmable height is used to calculate the Y-axis value in case of "flattening". The default-value for this parameter is the standard tool height, which is already pro­grammed. Every time that this standard height is changed, the flattening height will be made equal to this tool height (due to safety reasons). See figure 6.r.
5.m
The total height will be used to calculate the speed change point mute and the flattening height will be used to calculate the end position of the Y-axis beam to flatten the product. The calculation will take 2x sheet thickness into account. Also you can program a flat­tening offset in the menu ‘Program constants’. This value will be added to the value of 2x sheet thickness.
2nd X-safe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SN=
2nd X-safe turned (negative) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ST=
Second automatically calculated safety zone (minimum X-axis value) to be used in the case a R-axis is mounted. The value is the distance from the middle of the V-opening to the most outside point of the drawing of the die (on the right side). Also an extra safety tolerance of 1mm is added. The situation for the die in turned position the distance to the
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left side is used. These values are calculated each time the die drawing changes. These 2nd-values cannot be changed manually.
5.n
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.
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5.4. Machine upper side and lower side

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Function keys:
5.o
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.
The shapes of your machine are drawn in the same way as for the punches and dies. Like with the tools the right hand side of the drawing is the backgauge position of the machine. Before starting drawing the machine shape upper or lower side you must enter the press-beam height of the upper part when the moving part of the upper side is in its mechanical top dead
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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.
5.p
For the lower side of the machine the height is defined from the table surface to the floor level.
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5.q
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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). When the function key 'save to disk' has been pressed, a screen like shown below should appear.
5.r
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 tools are saved to. See the chapter about the pro­gram constants. To save a tool, enter its number from the list and press 'enter'.
Function keys:
all Save all tools.
backup directory
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Change, make or remove a subdirectory where tools will be saved.
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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 cre­ated in this menu. When the softkey 'backup directory' is pressed, a new window appears with a list of available back-up directories. A selected directory can contain products and tools, so each user can keep his own set of products and tools, if necessary.
5.s
You can make new subdirectories or delete existing ones with the softkeys 'make subdir' and 'remove subdir'. If there are subdirectories present, use the arrow keys to scroll to the required directory and presss 'enter' to select it.
Function keys:
make sub­dir
Add a new subdirectory. The name of the subdirectory can be any alpha numeric string of maximal 8 characters. Avoid the use of slashes ('/')
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Function keys:
remove subdir
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. If the toolnumber already exists then you have three options:
-cancel (S3), the toolnumber is not loaded.
-overwrite (S4), the tool in the control is replaced by the tool from disk.
-rename (S5), the tool number of the tool on the disk is first renamed before it is loaded from disk. This means (in case of rename) that a new toolnumber is proposed. This new toolnumber is the first free tool number in the tool library. Accept the proposed tool number with the enter key or enter the number of another free tool number and press the enter key.
Delete a subdirectory. If the subdirectory is not empty the controller returns the message 'unable to remove direc­tory'.
5.t
Note:
Tools are linked to the control by their machine number. When a 'restore' operation is started, the control will only show those tools, which have the same machine number as the control. If for any reason the machine number is changed, a new tool back-up operation should be exe­cuted to save the control tools with their new machine number.
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6. 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. The actual back-up directory consists of a device (USB disk, network) and a directory. The choice of devices depends on which devices are connected to the control. If necessary, directo­ries can be created and selected. The back-up locations for storage of products and tools are set independently.
6.a
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6.2. Directory navigation

When softkey ‘backup directory’ is pressed, a new window appears with a list of available back-up directories.
6.b
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. To select the directory you are currently in, go to and press 'select'. To change from one device to another, press ENTER on the <PARENT> symbol a number of times until the highest level is reached. From there, select the proper device and choose the correct subdirectory. If a network connection is available you must first select 'network' and subsequently one of the offered network volumes. After that it works similar to other devices. You can make new subdirectories or delete existing ones with the softkeys ‘make subdir’ and ‘remove subdir’. If there are subdirectories present, use the arrow keys to scroll to the required directory and presss ‘select’ to select it.
Function keys:
make subdir
Add a new subdirectory. The name of the subdi­rectory can be any alpha numeric string of maxi­mal 8 characters. Avoid the use of slashes (‘/’).
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Function keys:
Delem
remove subdir
Delete a subdirectory. If the subdirectory is not 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.
6.c
From this screen, a backup or a restore function is available. It is also indicated to which loca­tion a backup is made (floppy disk, network, etc.).
Function keys
backup products
restore products
Open the back-up menu to save products to disk.
Open the restore menu to load products from disk.
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When ‘backup products’ has been selected, a screen like shown below should appear.
6.d
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. To save a product, enter its number from the list and press ‘enter’.
Function keys:
all load all products
backup direc­tory
draw. nr. Toggle drawing number / product number
Change, make or remove backup directory
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local direc­tory
get an overview of the manually created product directory structure on the control disk.
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Function keys:
Button to select one out of two possible viewing
view
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.

6.4. Tool back-up

To make a back-up of tools to disk, choose ‘Tool backup’ in the main menu.
modes:
- normal dir.
- dir. expand
- graph. dir.
6.e
With this menu a back-up of all programmed tools on the control is made: punches, dies and machine shapes. When activated, one warning is given that existing tools with the same num­ber on the destination disk will be replaced.
Function keys:
backup tools save all tools to disk.
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Function keys:
restore tools restore all tools from disk.
backup direc­tory
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. Tools are linked to the control by their machine number. When a restore operation is started, the control will only import those tools, which have the same machine number as the control. If for any reason the machine number is changed, a new tool back-up operation should be exe­cuted to save the control tools with their new machine number. If this has not been done, the control will detect no tools at the next restore action.
change, make or remove backup directory
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7. 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 sec­tions.

7.2. General

7.a
Use the keys 'next page' (S2) and 'previous page' (S1) to browse through the various pages with parameters. Use the arrow keys up/down to select individual parameters.
Inch/mm-select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IS
1 = dimensions in inches 0 = dimensions in millimeters
Press the key to select the required setting.
Ton/kN select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TS
1 = Ton 0 = kN It is possible to select the units for all Force data to be expressed in Tons or kN.
Press the key to select the required setting.
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7.b
Language. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .LA
Select the language for the user interface. The following languages are supported:
0 = English 11 = Polish
1 = German 12 = Lithuanian
2 = Danish 13= Slowenian
3 = French 14= Turkish
4 = Italian 15= Russian
5 = Dutch 16= Brazilian
6 = Swedish 17= Hungarian
7 = Czech 21= Chinese
8 = Spanish 22= Chinese Traditional
9 = Finnish 23= Korean
10= Portugese 24= Japanese
It depends on the machine configuration which languages are available.
Press the key to select the required setting.
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Help language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HL
Select the language for the on-line Help function. By default, the Help language is set to the same language as the user interface. If that language is not available as on-line Help, English is chosen. The Help function is available in the following languages: 0 = English 1 = German 3 = French 4 = Italian 5 = Dutch 8 = Spanish
When the cursor is on the parameter 'Help language', the function key 'add help language' appears. With this function key you can install a new help language on the control. Make sure the required help file is present on the control disk or another accessible location (network, USB disc).
7.c
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7.3. Materials

7.d
In this window, material properties can be programmed. You can edit existing materials, pro­gram new materials or delete existing materials. A maximum of 99 materials can be pro­grammed on the control. For each material, three properties are present and can be viewed and edited.
Material name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .NA =
Name of the material. The maximum allowed length of the material name is 25 charac­ters, the name must begin with a character (not a numeral).
Tensile strength. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .S =
Tensile stength of the selected material.
E module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E =
E- module of the selected material.
Function keys
edit name To change the name of the currently selected material
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Function keys
Delem
delete mate­rial
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. The materials will be sorted in ascending or descending order of that property. To change an existing material, go to the relevant line and change the values as you see fit. Use the ENTER key to confirm a typed value. To delete an existing material, move the cursor to the relevant line and press the function key ‘delete material’ (S6) to erase the values. To program a new material, move the cursor to an empty space and start programming its val­ues.
To delete the material that is currently shown on the screen.

7.4. Program settings

7.e
Machine number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MN =
When there are several bending machines in a factory, it can be useful to give the control on each machine a unique machine number. The selected machine number will be stored with the bending program. This number will be checked when a program is read from floppy or a network. When the machine number does not match you must confirm to read it anyway or not. If you do not confirm the
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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.
Angle correction computation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MI =
Parameter to switch computation of angle corrections on or off. When this parameter is set to enabled, the operator can enter the measured angle of a bend and have angle corrections calculated. With this parameter is set whether or not the field 'measured angle' is available in the cor­rections window. See chapter 10 for more information about the corrections window.
Angle correction database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CD =
Toggle function, to switch the database with angle corrections on or off. Angle corrections are entered in production mode (automatic/step by step). These correc­tions are stored in the product program. Beside this, it is also possible to store these cor­rections in a general database with angle corrections. This way corrections that have once been entered for certain bends remain available for future use in other products. When this setting is switched on, the control checks during production whether correc­tions for similar bends are present in the database. If corrections for certain bends are available, then they will be offered. On other occasions, corrections can be interpolated and offered. The correction database is adjusted by entering new corrections during production. When the database is enabled with this parameter, all new-entered corrections are stored in the database. When searching for similar bends, the control searches for bends that have the same properties as the active bend. The following properties of a bend are compared:
- Material properties
- Thickness
- Die opening
- Die radius
- Punch radius
- Angle
The first five properties of a bend must be exactly the same as the active bend to start a comparison. If the angle is the same as the angle of the active bend, the correction is offered. If the angle of the active bend has a maximum difference of 10° with two adja­cent bends, a correction is interpolated from these two bends. If the resulting correction has a difference of more than 5° with one of the two other bends, there will be no correc­tion offered.
Auto-computations edit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AC
In the ‘data edit’ mode you can change the value of the programmed parameters. This can also influence the value of other parameters. With this parameter you can choose to have the other values automatically recomputed. Program ‘auto computations edit’ to 1. There are three cases in which automatic computation can be used.
1. In case you change the value of the parameters ‘material type’ or ‘material thickness’
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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
- Z-axis position
3. In case you change the parameter ‘punch’ or ‘die’ and the height of the new punch or new die is different AND ONLY in case the ‘bend method’ is ‘bottoming’ or ‘flattening’ then the following parameter is automatically recomputed and changed by the control:
- Y-axis position (‘bend position’) (When the ‘bend method’ is ‘air bend’ (normal situation) the Y-axis position is calcu­lated in the automatic mode!)
If the automatic recomputation is switched off (default situation) then these parameters stay the same. However, when you go to these parameters with the cursor keys the recomputed value is displayed in the input row. When you press ‘enter’ the recomputed value replaces the old value after all. So, you can choose to change the values.
X1X2 difference programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .XX =
0 = angular format 1 = projection method When you have two independent X-axes (X1 and X2) and the option OP-X1X2 has been installed, you can program the values for X1, X2 in a certain relation. This means that you program X1 and an angle value (angular method) or in a projection measure. Please ask the option description from your supplier when this option has been installed. Only available when this option is installed.
Y opening default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 =
Default Y-axis opening value. The value programmed here is used as initial value for the parameter ‘Y-axis opening’ in the Data Preparation menu of the programming mode.
Pressing speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PS =
Default pressing speed, used as initial value for the parameter ‘speed’ in a new program.
Default X-axis code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .XC =
Default value for the parameter ‘code’ in a bend program. This parameter determines the moment of step change in a bend program. Initially the code parameter is set to the value programmed here during postprocessing and during programming. The default value of this parameter = 2. See chapter ‘data preparation/data edit’ for more information about the code parameter.
Default X time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .XT =
During the postprocessing, the waiting time of the X-axis at step change is put to zero. With this parameter you can preset a longer waiting time when needed for product han-
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dling.

7.5. Computation settings

7.f
Active bend allowance table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BE =
0 = Internal / 1 = bendallw.tab Bend-allowance: correction of the X-axis due to plate shortening after bending. With this parameter the method for bend-allowance calculation is chosen. ‘Internal’ means the standard formula of the control is used to calculate the bend-allowance. ‘Bendallw.tab’ means a bend-allowance table with correction values can be used. The choice ‘Ben­dallw.tab’ is only available if a bend-allowance table is present on the control. If a table has been chosen, the name of that table (if it has a name) is shown on the screen.
Press the key to select the required setting.
Data preparation bend allowance. . . . . . . . . . . . . . . . . . . . . . . . . . . . .BA =
0 = correction off / 1 = correction on With this parameter you can choose whether or not you wish to have programmed values corrected for bend-allowance. This on/off setting only refers to corrections during prod­uct programming in the menu ‘data preparation’. If a numeric program has been entered with corrections on, the axis corrections are calculated and stored in the program. These corrections can be viewed and edited in production mode (see ‘Automatic mode’).
Press the key to select the required setting.
This choice has no effect on the postprocess function in the drawing mode. When the control
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uses the postprocess command to calculate a CNC program from a drawing with bendse­quence, 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 allow­ance table’ then an extra function key is available: ‘edit table’. With this softkey the table can be modified to meet user requirements. The table appears in a new window, with its own set of function keys.
7.g
Each line contains a table entry, with several parameters. In this screen, the following function keys are available:
Funtion keys:
new entry Enter a new line in the table.
delete entry
Use the arrow keys to scroll to the field you wish to change. Then type the new value and press 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 bend­allowance table.
Delete the current line.
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Bottoming Force Factor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BF =
The pressure needed for an airbend multiplied by this factor in order to obtain the coin­ing pressure.
Flattening offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OF =
The calculated depth position for the Y-axis beam in case of flattening your product depends on the programmed flatten height of your special tool and the sheet thickness (x2) and the here programmed offset to realise a flattened product as you require.
Z-distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ZD =
When automatic Z-axes are installed, the distance of the fingers on the backgauge are automatically calculated with respect to the end of the plate.
7.h

7.6. Production settings

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7.i
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