FAGOR NC-200 PB NC FOR PRESS BRAKES OPERATING MANUAL Manual version 0111
INDEX Diagram of a typical press BRAKE ..................................................................... 0 Introduction ....................................................................................................... 1 Description of the various machine models .......................................................... 1 1. 1.1 Unit description .................................................................................... 2 Front panel........................................................
4 4.1 4.1.1 4.1.2 4.2 4.3 Programming ..................................................................................... 20 Program editing .....................................................................................20 Editing / Deleting an existing program .....................................................20 Editing a new program ...........................................................................22 Inserting / deleting blocks in a previously edited program ........................
DIAGRAM OF A TYPICAL PRESS BRAKE + Y - X Operating Manual NVP-200 PB - page 0 - +
INTRODUCTION Throughout this manual, certain installation parameters are referred to which affect the description of certain NC functions. These parameters have been set by the installer and may be modified by the operator. These parameters are described in the installation manual supplied with this unit.
1. UNIT DESCRIPTION This NC is especially designed to be used on press brakes. It allows displaying the position of the vertical and horizontal axes as well as executing partprograms and also moving the axes manually from this NC's keyboard or by external means. 1.1 FRONT PANEL Message display The message display offers assistance to facilitate the operating modes of this NC. When using an LCD screen, its contrast may be adjusted by pressing 3 decrease it or 9 to increase it.
Each axis display has eight 14.1 mm high LEDs and another one for the minus sign (-). INCH- Inch mode selection. To access it or quit it, press 0 inch Machine reference search mode which is accessed by selecting the SET mode. when the TEACH - TEACH-In mode which is accessed by pressing editing mode is selected (on the screen for coordinate selection). MAN - Manual mode which is accessed by pressing There are two ways to access it: keyy Models A and B . Using the Model C - By selecting the SET mode.
Access the program execution mode. Program blocks after moving the axes to the desired position while in editing mode (Teach-in mode). Move the axes in MANUAL mode in both directions and to move back and forth from one menu option to another. Move the axes manually at fast feedrate. Execute and interrupt, respectively, the execution of a program. 7 8 9 4 5 6 Enter data. 1 + + - - 3 0 inch Change the sign of the value being entered and to eliminate the last digit of the X and Y axes.
Turning the unit OFF If you press key the NC turns off the displays while maintaining the power supply to the feedback systems and goes on reading the position of the axes at all times. This is not the case when the equipment is turned off by means of the switch on the rear panel of the same. To reset the displays, just press this key again as long as that the NC is getting voltage (plugged in and with the switch on the rear panel on).
Conversion mm into inches This NC can displayed the position of the axes in millimeters or inches by pressing 0 inch key depending on whether the INCH led is off or on respectively.. Turning off the last digit of the X and Y displays This NC allows a decimal digit to be switched off (coarse resolution) when the resolution is excessive, simply by pressing + - . For example 0.01 instead of 0.012. 2.
2.3 TYPE OF MATERIAL The type of material depends on a number of factors that make it impossible to foresee its behavior in order to calculate the depth "Y" of the punch according to the programmed angle α . This problem is solved using the TEACH-IN editing mode that forces the operator to make several bends by trial and error until obtaining an acceptable result and memorize the "Y" depth associated with the requested angle α .
By default, this unit has some initial tables stored in nonvolatile memory and cannot be modified. This table may be used as a sample for typical materials and there is a modifiable copy of this table under factor numbers M0 to M19. Either the non-modifiable factors M21 through M41 or the modifiable ones M0 through M20 when programming the header page N0. There is a specific way, section 2.3.
2.3.1 GENERATE THE WHOLE ELASTICITY FACTOR TABLE FOR A NEW UNKNOWN MATERIAL Tables 0 through 19 are open to the machine operator. They may be changed with the NC's own resources or uploaded from a PC. They represent each operator's experience. M0 should be reserved for inflexible materials that do not require bending radius compensation. See example in Section 2.3.
After accepting the last angle, it calculates the whole table of elasticity factors associated with the angles multiple of 10, thus concluding the trial. These factor are stored in the selected table. This trial may be aborted by pressing after completing a bend, but the factors of the angles already tested will not be stored.
The TEACH-IN EDITING mode is accessed in the same way. The first page defines the tools and type of material. [punch number] [·] [die number] [sheetmetal thickness] [number of associated table (0 to 19)] Once all four data have been entered, the NC may access the TEACH-IN mode. Press (at the "C" model, select "SET" first). · Press and key in the α value to be tested and press to make the trial bend. An approximative result will be obtained.
Practical examples: With a factor of M0, the material is supposed to be inflexible without inside bending radius. a) - With M0, r = 0, e = 0, α = 90, A = 24 Bending depth Y = -12 b) - With M0, r = 0, e = 3, α = 90, A = 24 Bending depth Y = -7.726 2.3.3 GENERATE THE ELASTICITY FACTOR BY TRIAL AND ERROR AND CORRECT THE ANGLE Method recommended when trying to correct the elasticity factor of some material that has been already tested and shows some dispersions.
· Press The screen shows the option: Select "Yes" and press . The Save correction? Yes blinks "000". · Indicate the actual resulting angle with a maximum resolution of 0.1º and press 2.3.4 SAVING AND RECALLING THE MATERIAL-TYPE TABLES THROUGH THE SERIAL LINE RS-232 The material type number is an empirical value (obtained through a custom algorithm) that cannot be interpreted.
2.3.5 RESTORING INITIAL TABLES In initial mode, press F Select (Materials) with and press Select and press · To restore the material type (elasticity factor) for a single material: Indicate the table number, 1 to 19, displayed on the 3rd display and press · To recover all the initial tables: Indicate Nr. 99 and press A dot comes on at the 1st and 2nd display. Press Press Use again. Two dots are lit. F . 2 dots are lit and it offers two choices (are you sure?).
If PAR16 has been set with leadscrew backlash value, position reading will be ignored when reversing the turning direction. Once the backlash has been made up for, this unit resumes position reading. This is particularly noticeable when using continuous jogging or the Y axis has been enabled and it is moved by external means. If PAR17 has been set to "1" or "2", when moving the axes in continuous or incremental jog mode, in back and forth movements, this unit assumes the unidirectional approach.
