User manual FAGOR CNC 8025 GP FEATURES

[. . . ] P621(7) It is wrong, it should say: P621(7) The M06 function executes the M19 function (0=Yes, 1=No) Appendix "G" page 20. P621(7) It is wrong, it should say: P621(7) The M06 function executes the M19 function (0=Yes, 1=No) MODIFICATIONS TO THE INSTALLATION MANUAL (REF. Feedback inputs for rotary axes, it should say: W (GP), Comparison table xii. Add fields GP Open loop motors without servodrives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x Laser machines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Block N20 The spindle is started again and goes in rapid to the starting point X0, Y0, Z10. From then on, the threadcutting can be repeated. 42 8025/8030 CNC PROGRAMMING MANUAL 6. 12. AUTOMATIC RADIUS BLEND This function, G36, rounds the corners with a programmed radius, without the need to calculate the coordinates of the center and the initial and final points of the arc. It must be programmed in the same block as the movement whose end must be rounded. The rounding radius must be always positive (R 4. 3 in mm) (R 3. 4 in inch). Examples: 1. N50 G90 G01 G36 R5 X35 Y60 F100 N60 X50 Y0 8025/8030 CNC PROGRAMMING MANUAL 43 2. N50 G90 G03 G36 R5 X50 Y50 I0 J30 F100 N60 G01 X50 Y0 44 8025/8030 CNC PROGRAMMING MANUAL 6. 13. TANGENTIAL APPROACH AT THE START OF MACHINING The preparatory function G37 can be used to link two paths tangentially without having to calculate the intersection points. Function G37 is not modal, so it has to be programmed every time a machining operation with tangential entry is to be started. Example: Let us suppose that the starting point is X0, Y30 and that an arc of circle is to be machined and the approach path is to be rectilinear. We shall program as follows: N0 G90 G01 X40 F100 N5 G02 X60 Y10 I20 J0 8025/8030 CNC PROGRAMMING MANUAL 45 In the same example, if we want the tool entry to the part being machined to be tangential to the path (See fig. ), describing a radius of 5 mm. , the following must be programmed: N0 G90 G01 G37 R5 X40 F100 N5 G02 X60 Y10 I20 J0 As can be seen in the diagram, the CNC modifies the path of block N0 so that the tool starts machining with a tangential entry to the part. Function G37 and the value of R have to be programmed in the block which incorporates the path that is to be modified. The value of R has in all cases to be a continuation of G37 and indicates the radius of the arc of circle which the CNC introduces in order to achieve a tangential entry to the part. Function G37 may only be programmed in a block which incorporates rectilinear movement (G00 or G01). If it is programmed in a block which incorporates circular movement (G02 or G03), the CNC will show a type 41 error. It cannot be circular. 46 8025/8030 CNC PROGRAMMING MANUAL 6. 14. TANGENTIAL EXIT ON COMPLETION OF MACHINING Function G38 enables a machining operation to be completed with a tangential exit of the tool without involving cumbersome calculations. Function G38 is not modal, so it has to be programmed every time a tangential tool exit is required. The radius (R 4. 3 in mm)(R 3. 4 in inch) of the exit arc must be programmed to follow G38. The initial straight section is an approach movement involving no machining, the circular section performs a machining operation and the final straight involves no machining. The program will be: N0 G90 G01 X40 F100 N5 G02 X80 Y30 I20 J0 N10 G00 X120 8025/8030 CNC PROGRAMMING MANUAL 47 If the tool exit on completion of machining is to be tangential, e. g. with an exit radius of 5 mm. , the following must be programmed: N0 G90 G01 X40 F100 N5 G90 G02 G38 R5 X80 Y30 I20 J0 N10 G00 X120 Milling tool radius The movement programmed in the block following the one including G38, must necessarily be rectilinear (G00 or G01). In the subsequent path is circular (G02 or G03), the CNC will show a type 42 error. [. . . ] In other words, when all their "Slow" outputs are set low (deactivated). Example: N00 G90 G07 X20 Y5 N10 G05 X40 Y7 N20 X60 Y2 N30 X80 N40 G07 X100 Y-2 N50 M30 Chapter: 3 NON-SERVO CONTROLLED OPEN LOOP MOTORS Section: AUTOMATIC & SINGLE BLOCK Page 7 3. 5. 2 SINGLE BLOCK EXECUTION When operating in Single-Block mode, the CNC ignores function G05 and executes all the movements as if they were programmed in G07. The CNC considers the execution of the block concluded when all the involved axes have reached position. In other words, when all their "In-Position" outputs are high. [. . . ]